1. 14 Jun, 2018 14 commits
    • Linus Torvalds's avatar
      Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground · 7a932516
      Linus Torvalds authored
      Pull inode timestamps conversion to timespec64 from Arnd Bergmann:
       "This is a late set of changes from Deepa Dinamani doing an automated
        treewide conversion of the inode and iattr structures from 'timespec'
        to 'timespec64', to push the conversion from the VFS layer into the
        individual file systems.
      
        As Deepa writes:
      
         'The series aims to switch vfs timestamps to use struct timespec64.
          Currently vfs uses struct timespec, which is not y2038 safe.
      
          The series involves the following:
          1. Add vfs helper functions for supporting struct timepec64
             timestamps.
          2. Cast prints of vfs timestamps to avoid warnings after the switch.
          3. Simplify code using vfs timestamps so that the actual replacement
             becomes easy.
          4. Convert vfs timestamps to use struct timespec64 using a script.
             This is a flag day patch.
      
          Next steps:
          1. Convert APIs that can handle timespec64, instead of converting
             timestamps at the boundaries.
          2. Update internal data structures to avoid timestamp conversions'
      
        Thomas Gleixner adds:
      
         'I think there is no point to drag that out for the next merge
          window. The whole thing needs to be done in one go for the core
          changes which means that you're going to play that catchup game
          forever. Let's get over with it towards the end of the merge window'"
      
      * tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground:
        pstore: Remove bogus format string definition
        vfs: change inode times to use struct timespec64
        pstore: Convert internal records to timespec64
        udf: Simplify calls to udf_disk_stamp_to_time
        fs: nfs: get rid of memcpys for inode times
        ceph: make inode time prints to be long long
        lustre: Use long long type to print inode time
        fs: add timespec64_truncate()
      7a932516
    • Linus Torvalds's avatar
      Merge tag 'ceph-for-4.18-rc1' of git://github.com/ceph/ceph-client · dc594c39
      Linus Torvalds authored
      Pull ceph updates from Ilya Dryomov:
       "The main piece is a set of libceph changes that revamps how OSD
        requests are aborted, improving CephFS ENOSPC handling and making
        "umount -f" actually work (Zheng and myself).
      
        The rest is mostly mount option handling cleanups from Chengguang and
        assorted fixes from Zheng, Luis and Dongsheng.
      
      * tag 'ceph-for-4.18-rc1' of git://github.com/ceph/ceph-client: (31 commits)
        rbd: flush rbd_dev->watch_dwork after watch is unregistered
        ceph: update description of some mount options
        ceph: show ino32 if the value is different with default
        ceph: strengthen rsize/wsize/readdir_max_bytes validation
        ceph: fix alignment of rasize
        ceph: fix use-after-free in ceph_statfs()
        ceph: prevent i_version from going back
        ceph: fix wrong check for the case of updating link count
        libceph: allocate the locator string with GFP_NOFAIL
        libceph: make abort_on_full a per-osdc setting
        libceph: don't abort reads in ceph_osdc_abort_on_full()
        libceph: avoid a use-after-free during map check
        libceph: don't warn if req->r_abort_on_full is set
        libceph: use for_each_request() in ceph_osdc_abort_on_full()
        libceph: defer __complete_request() to a workqueue
        libceph: move more code into __complete_request()
        libceph: no need to call flush_workqueue() before destruction
        ceph: flush pending works before shutdown super
        ceph: abort osd requests on force umount
        libceph: introduce ceph_osdc_abort_requests()
        ...
      dc594c39
    • Linus Torvalds's avatar
      Merge tag 'for-4.18-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · e7655d2b
      Linus Torvalds authored
      Pull btrfs fixes from David Sterba:
      
       - error handling fixup for one of the new ioctls from 1st pull
      
       - fix for device-replace that incorrectly uses inode pages and can mess
         up compressed extents in some cases
      
       - fiemap fix for reporting incorrect number of extents
      
       - vm_fault_t type conversion
      
      * tag 'for-4.18-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
        btrfs: scrub: Don't use inode pages for device replace
        btrfs: change return type of btrfs_page_mkwrite to vm_fault_t
        Btrfs: fiemap: pass correct bytenr when fm_extent_count is zero
        btrfs: Check error of btrfs_iget in btrfs_search_path_in_tree_user
      e7655d2b
    • Masahiro Yamada's avatar
      Kbuild: rename HAVE_CC_STACKPROTECTOR config variable · d148eac0
      Masahiro Yamada authored
      HAVE_CC_STACKPROTECTOR should be selected by architectures with stack
      canary implementation.  It is not about the compiler support.
      
      For the consistency with commit 050e9baa
      
       ("Kbuild: rename
      CC_STACKPROTECTOR[_STRONG] config variables"), remove 'CC_' from the
      config symbol.
      
      I moved the 'select' lines to keep the alphabetical sorting.
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      Acked-by: default avatarKees Cook <keescook@chromium.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      d148eac0
    • Masahiro Yamada's avatar
      kconfig: tinyconfig: remove stale stack protector fixups · a0f8c297
      Masahiro Yamada authored
      Prior to commit 2a61f474
      
       ("stack-protector: test compiler capability
      in Kconfig and drop AUTO mode"), the stack protector was configured by
      the choice of NONE, REGULAR, STRONG, AUTO.
      
      tiny.config needed to explicitly set NONE because the default value of
      choice, AUTO, did not produce the tiniest kernel.
      
      Now that there are only two boolean symbols, STACKPROTECTOR and
      STACKPROTECTOR_STRONG, they are naturally disabled by "make
      allnoconfig", which "make tinyconfig" is based on.  Remove unnecessary
      lines from the tiny.config fragment file.
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      Acked-by: default avatarKees Cook <keescook@chromium.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      a0f8c297
    • Masahiro Yamada's avatar
      x86: fix dependency of X86_32_LAZY_GS · 8458f8c2
      Masahiro Yamada authored
      Commit 2a61f474 ("stack-protector: test compiler capability in
      Kconfig and drop AUTO mode") replaced the 'choice' with two boolean
      symbols, so CC_STACKPROTECTOR_NONE no longer exists.
      
      Prior to commit 2bc2f688 ("Makefile: move stack-protector
      availability out of Kconfig"), this line was like this:
      
        depends on X86_32 && !CC_STACKPROTECTOR
      
      The CC_ prefix was dropped by commit 050e9baa
      
       ("Kbuild: rename
      CC_STACKPROTECTOR[_STRONG] config variables"), so the dependency now
      should be:
      
        depends on X86_32 && !STACKPROTECTOR
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      Acked-by: default avatarKees Cook <keescook@chromium.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      8458f8c2
    • Arnd Bergmann's avatar
      pstore: Remove bogus format string definition · e264abea
      Arnd Bergmann authored
      The pstore conversion to timespec64 introduces its own method of passing
      seconds into sscanf() and sprintf() type functions to work around the
      timespec64 definition on 64-bit systems that redefine it to 'timespec'.
      
      That hack is now finally getting removed, but that means we get a (harmless)
      warning once both patches are merged:
      
      fs/pstore/ram.c: In function 'ramoops_read_kmsg_hdr':
      fs/pstore/ram.c:39:29: error: format '%ld' expects argument of type 'long int *', but argument 3 has type 'time64_t *' {aka 'long long int *'} [-Werror=format=]
       #define RAMOOPS_KERNMSG_HDR "===="
                                   ^~~~~~
      fs/pstore/ram.c:167:21: note: in expansion of macro 'RAMOOPS_KERNMSG_HDR'
      
      This removes the pstore specific workaround and uses the same method that
      we have in place for all other functions that print a timespec64.
      
      Related to this, I found that the kasprintf() output contains an incorrect
      nanosecond values for any number starting with zeroes, and I adapt the
      format string accordingly.
      
      Link: https://lkml.org/lkml/2018/5/19/115
      Link: https://lkml.org/lkml/2018/5/16/1080
      
      
      Fixes: 0f0d83b99ef7 ("pstore: Convert internal records to timespec64")
      Acked-by: default avatarKees Cook <keescook@chromium.org>
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      e264abea
    • Arnd Bergmann's avatar
      Merge branch 'vfs_timespec64' of https://github.com/deepa-hub/vfs into vfs-timespec64 · 15eefe2a
      Arnd Bergmann authored
      
      
      Pull the timespec64 conversion from Deepa Dinamani:
       "The series aims to switch vfs timestamps to use
        struct timespec64. Currently vfs uses struct timespec,
        which is not y2038 safe.
      
        The flag patch applies cleanly. I've not seen the timestamps
        update logic change often. The series applies cleanly on 4.17-rc6
        and linux-next tip (top commit: next-20180517).
      
        I'm not sure how to merge this kind of a series with a flag patch.
        We are targeting 4.18 for this.
        Let me know if you have other suggestions.
      
        The series involves the following:
        1. Add vfs helper functions for supporting struct timepec64 timestamps.
        2. Cast prints of vfs timestamps to avoid warnings after the switch.
        3. Simplify code using vfs timestamps so that the actual
           replacement becomes easy.
        4. Convert vfs timestamps to use struct timespec64 using a script.
           This is a flag day patch.
      
        I've tried to keep the conversions with the script simple, to
        aid in the reviews. I've kept all the internal filesystem data
        structures and function signatures the same.
      
        Next steps:
        1. Convert APIs that can handle timespec64, instead of converting
           timestamps at the boundaries.
        2. Update internal data structures to avoid timestamp conversions."
      
      I've pulled it into a branch based on top of the NFS changes that
      are now in mainline, so I could resolve the non-obvious conflict
      between the two while merging.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      15eefe2a
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 2837461d
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "This is a set of minor (and safe changes) that didn't make the initial
        pull request plus some bug fixes"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: qla2xxx: Mask off Scope bits in retry delay
        scsi: qla2xxx: Fix crash on qla2x00_mailbox_command
        scsi: aic7xxx: aic79xx: fix potential null pointer dereference on ahd
        scsi: mpt3sas: Add an I/O barrier
        scsi: qla2xxx: Fix setting lower transfer speed if GPSC fails
        scsi: hpsa: disable device during shutdown
        scsi: sd_zbc: Fix sd_zbc_check_zone_size() error path
        scsi: aacraid: remove bogus GFP_DMA32 specifies
      2837461d
    • Linus Torvalds's avatar
      Merge tag 'platform-drivers-x86-v4.18-1' of git://git.infradead.org/linux-platform-drivers-x86 · f3b5020e
      Linus Torvalds authored
      Pull x86 platform driver updates from Darren Hart:
       "Several incremental improvements including new keycodes, new models,
        new quirks, and related documentation. Adds LED platform driver
        activation for Mellanox systems. Some minor optimizations and
        cleanups. Includes several bug fixes, message silencing, mostly minor
      
        Automated summary:
      
        acer-wmi:
         -  add another KEY_POWER keycode
      
        apple-gmux:
         -  fix gmux_get_client_id()'s return type
      
        asus-laptop:
         -  Simplify getting .drvdata
      
        asus-wireless:
         -  Fix format specifier
      
        dell-laptop:
         -  Fix keyboard backlight timeout on XPS 13 9370
      
        dell-smbios:
         -  Match on www.dell.com in OEM strings too
      
        dell-wmi:
         -  Ignore new rfkill and fn-lock events
         -  Set correct keycode for Fn + left arrow
      
        fujitsu-laptop:
         -  Simplify soft key handling
      
        ideapad-laptop:
         -  Add E42-80 to no_hw_rfkill
         -  Add fn-lock setting
         -  Add MIIX 720-12IKB to no_hw_rfkill
      
        lib/string_helpers:
         -  Add missed declaration of struct task_struct
      
        intel_scu_ipc:
         -  Replace mdelay with usleep_range in intel_scu_ipc_i2c_cntrl
      
        mlx-platform:
         -  Add LED platform driver activation
      
        platform/mellanox:
         -  Add new ODM system types to mlx-platform
         -  mlxreg-hotplug: add extra cycle for hotplug work queue
         -  mlxreg-hotplug: Document fixes for hotplug private data
      
        platform_data/mlxreg:
         -  Document fixes for hotplug device
      
        silead_dmi:
         -  Add entry for Chuwi Hi8 tablet touchscreen
         -  Add touchscreen info for the Onda V891w tablet
         -  Add info for the PoV mobii TAB-P800W (v2.0)
         -  Add touchscreen info for the Jumper EZpad 6 Pro
      
        thinkpad_acpi:
         -  silence false-positive-prone pr_warn
         -  do not report thermal sensor state for tablet mode switch
         -  silence HKEY 0x6032, 0x60f0, 0x6030"
      
      * tag 'platform-drivers-x86-v4.18-1' of git://git.infradead.org/linux-platform-drivers-x86: (30 commits)
        platform/x86: silead_dmi: Add entry for Chuwi Hi8 tablet touchscreen
        platform/x86: dell-laptop: Fix keyboard backlight timeout on XPS 13 9370
        platform/x86: dell-wmi: Ignore new rfkill and fn-lock events
        platform/x86: mlx-platform: Add LED platform driver activation
        platform/mellanox: Add new ODM system types to mlx-platform
        platform/mellanox: mlxreg-hotplug: add extra cycle for hotplug work queue
        platform/x86: ideapad-laptop: Add E42-80 to no_hw_rfkill
        platform/x86: silead_dmi: Add touchscreen info for the Onda V891w tablet
        platform/x86: silead_dmi: Add info for the PoV mobii TAB-P800W (v2.0)
        platform/x86: silead_dmi: Add touchscreen info for the Jumper EZpad 6 Pro
        platform/x86: asus-wireless: Fix format specifier
        platform/x86: asus-wmi: Fix NULL pointer dereference
        platform/x86: dell-wmi: Set correct keycode for Fn + left arrow
        platform/x86: acer-wmi: add another KEY_POWER keycode
        platform/x86: ideapad-laptop: Add fn-lock setting
        platform/x86: ideapad-laptop: Add MIIX 720-12IKB to no_hw_rfkill
        lib/string_helpers: Add missed declaration of struct task_struct
        platform/x86: DELL_WMI use depends on instead of select for DELL_SMBIOS
        platform/mellanox: mlxreg-hotplug: Document fixes for hotplug private data
        platform_data/mlxreg: Document fixes for hotplug device
        ...
      f3b5020e
    • Linus Torvalds's avatar
      Merge tag 'pwm/for-4.18-rc1' of... · 4b4bb99b
      Linus Torvalds authored
      Merge tag 'pwm/for-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
      
      Pull pwm updates from Thierry Reding:
       "This contains a couple of fixes and cleanups for the Meson and
        ACPI/LPSS drivers as well as capture support for STM32.
      
        Note that given the cross- subsystem changes, the STM32 patches were
        merged through the MFD and PWM trees, both sharing an immutable
        branch"
      
      * tag 'pwm/for-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
        pwm: stm32: Fix build warning with CONFIG_DMA_ENGINE disabled
        pwm: stm32: Enforce dependency on CONFIG_MFD_STM32_TIMERS
        ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM devices
        pwm: lpss: platform: Save/restore the ctrl register over a suspend/resume
        dt-bindings: mfd: stm32-timers: Add support for dmas
        pwm: simplify getting .drvdata
        pwm: meson: Fix allocation of PWM channel array
      4b4bb99b
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 9bca19a0
      Linus Torvalds authored
      Pull i2c updates from Wolfram Sang:
      
       - mainly feature additions to drivers (stm32f7, qup, xlp9xx, mlxcpld, ...)
      
       - conversion to use the i2c_8bit_addr_from_msg macro consistently
      
       - move includes to platform_data
      
       - core updates to allow the (still in review) I3C subsystem to connect
      
       - and the regular share of smaller driver updates
      
      * 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (68 commits)
        i2c: qup: fix building without CONFIG_ACPI
        i2c: tegra: Remove suspend-resume
        i2c: imx-lpi2c: Switch to SPDX identifier
        i2c: mxs: Switch to SPDX identifier
        i2c: busses: make use of i2c_8bit_addr_from_msg
        i2c: algos: make use of i2c_8bit_addr_from_msg
        i2c: rcar: document R8A77980 bindings
        i2c: qup: Add command-line parameter to override SCL frequency
        i2c: qup: Correct duty cycle for FM and FM+
        i2c: qup: Add support for Fast Mode Plus
        i2c: qup: add probe path for Centriq ACPI devices
        i2c: robotfuzz-osif: drop pointless test
        i2c: robotfuzz-osif: remove pointless local variable
        i2c: rk3x: Don't print visible virtual mapping MMIO address
        i2c: opal: don't check number of messages in the driver
        i2c: ibm_iic: don't check number of messages in the driver
        i2c: imx: Switch to SPDX identifier
        i2c: mux: pca954x: merge calls to of_match_device and of_device_get_match_data
        i2c: mux: demux-pinctrl: use proper parent device for demux adapter
        i2c: mux: improve error message for failed symlink
        ...
      9bca19a0
    • Linus Torvalds's avatar
      Merge tag 'apparmor-pr-2018-06-13' of... · 463f2021
      Linus Torvalds authored
      Merge tag 'apparmor-pr-2018-06-13' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor
      
      Pull AppArmor updates from John Johansen:
       "Features
         - add support for mapping secids and using secctxes
         - add the ability to get a task's secid
         - add support for audit rule filtering
      
        Cleanups:
         - multiple typo fixes
         - Convert to use match_string() helper
         - update git and wiki locations in AppArmor docs
         - improve get_buffers macro by using get_cpu_ptr
         - Use an IDR to allocate apparmor secids
      
        Bug fixes:
         - fix '*seclen' is never less than zero
         - fix mediation of prlimit
         - fix memory leak when deduping profile load
         - fix ptrace read check
         - fix memory leak of rule on error exit path"
      
      * tag 'apparmor-pr-2018-06-13' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor: (21 commits)
        apparmor: fix ptrace read check
        apparmor: fix memory leak when deduping profile load
        apparmor: fix mediation of prlimit
        apparmor: fixup secid map conversion to using IDR
        apparmor: Use an IDR to allocate apparmor secids
        apparmor: Fix memory leak of rule on error exit path
        apparmor: modify audit rule support to support profile stacks
        apparmor: Add support for audit rule filtering
        apparmor: update git and wiki locations in AppArmor docs
        apparmor: Convert to use match_string() helper
        apparmor: improve get_buffers macro by using get_cpu_ptr
        apparmor: fix '*seclen' is never less than zero
        apparmor: fix typo "preconfinement"
        apparmor: fix typo "independent"
        apparmor: fix typo "traverse"
        apparmor: fix typo "type"
        apparmor: fix typo "replace"
        apparmor: fix typo "comparison"
        apparmor: fix typo "loosen"
        apparmor: add the ability to get a task's secid
        ...
      463f2021
    • Linus Torvalds's avatar
      Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables · 050e9baa
      Linus Torvalds authored
      
      
      The changes to automatically test for working stack protector compiler
      support in the Kconfig files removed the special STACKPROTECTOR_AUTO
      option that picked the strongest stack protector that the compiler
      supported.
      
      That was all a nice cleanup - it makes no sense to have the AUTO case
      now that the Kconfig phase can just determine the compiler support
      directly.
      
      HOWEVER.
      
      It also meant that doing "make oldconfig" would now _disable_ the strong
      stackprotector if you had AUTO enabled, because in a legacy config file,
      the sane stack protector configuration would look like
      
        CONFIG_HAVE_CC_STACKPROTECTOR=y
        # CONFIG_CC_STACKPROTECTOR_NONE is not set
        # CONFIG_CC_STACKPROTECTOR_REGULAR is not set
        # CONFIG_CC_STACKPROTECTOR_STRONG is not set
        CONFIG_CC_STACKPROTECTOR_AUTO=y
      
      and when you ran this through "make oldconfig" with the Kbuild changes,
      it would ask you about the regular CONFIG_CC_STACKPROTECTOR (that had
      been renamed from CONFIG_CC_STACKPROTECTOR_REGULAR to just
      CONFIG_CC_STACKPROTECTOR), but it would think that the STRONG version
      used to be disabled (because it was really enabled by AUTO), and would
      disable it in the new config, resulting in:
      
        CONFIG_HAVE_CC_STACKPROTECTOR=y
        CONFIG_CC_HAS_STACKPROTECTOR_NONE=y
        CONFIG_CC_STACKPROTECTOR=y
        # CONFIG_CC_STACKPROTECTOR_STRONG is not set
        CONFIG_CC_HAS_SANE_STACKPROTECTOR=y
      
      That's dangerously subtle - people could suddenly find themselves with
      the weaker stack protector setup without even realizing.
      
      The solution here is to just rename not just the old RECULAR stack
      protector option, but also the strong one.  This does that by just
      removing the CC_ prefix entirely for the user choices, because it really
      is not about the compiler support (the compiler support now instead
      automatially impacts _visibility_ of the options to users).
      
      This results in "make oldconfig" actually asking the user for their
      choice, so that we don't have any silent subtle security model changes.
      The end result would generally look like this:
      
        CONFIG_HAVE_CC_STACKPROTECTOR=y
        CONFIG_CC_HAS_STACKPROTECTOR_NONE=y
        CONFIG_STACKPROTECTOR=y
        CONFIG_STACKPROTECTOR_STRONG=y
        CONFIG_CC_HAS_SANE_STACKPROTECTOR=y
      
      where the "CC_" versions really are about internal compiler
      infrastructure, not the user selections.
      Acked-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      050e9baa
  2. 13 Jun, 2018 10 commits
    • Linus Torvalds's avatar
      Merge tag 'kbuild-v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild · be779f03
      Linus Torvalds authored
      Pull more Kbuild updates from Masahiro Yamada:
      
       - fix some bugs introduced by the recent Kconfig syntax extension
      
       - add some symbols about compiler information in Kconfig, such as
         CC_IS_GCC, CC_IS_CLANG, GCC_VERSION, etc.
      
       - test compiler capability for the stack protector in Kconfig, and
         clean-up Makefile
      
       - test compiler capability for GCC-plugins in Kconfig, and clean-up
         Makefile
      
       - allow to enable GCC-plugins for COMPILE_TEST
      
       - test compiler capability for KCOV in Kconfig and correct dependency
      
       - remove auto-detect mode of the GCOV format, which is now more nicely
         handled in Kconfig
      
       - test compiler capability for mprofile-kernel on PowerPC, and clean-up
         Makefile
      
       - misc cleanups
      
      * tag 'kbuild-v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
        linux/linkage.h: replace VMLINUX_SYMBOL_STR() with __stringify()
        kconfig: fix localmodconfig
        sh: remove no-op macro VMLINUX_SYMBOL()
        powerpc/kbuild: move -mprofile-kernel check to Kconfig
        Documentation: kconfig: add recommended way to describe compiler support
        gcc-plugins: disable GCC_PLUGIN_STRUCTLEAK_BYREF_ALL for COMPILE_TEST
        gcc-plugins: allow to enable GCC_PLUGINS for COMPILE_TEST
        gcc-plugins: test plugin support in Kconfig and clean up Makefile
        gcc-plugins: move GCC version check for PowerPC to Kconfig
        kcov: test compiler capability in Kconfig and correct dependency
        gcov: remove CONFIG_GCOV_FORMAT_AUTODETECT
        arm64: move GCC version check for ARCH_SUPPORTS_INT128 to Kconfig
        kconfig: add CC_IS_CLANG and CLANG_VERSION
        kconfig: add CC_IS_GCC and GCC_VERSION
        stack-protector: test compiler capability in Kconfig and drop AUTO mode
        kbuild: fix endless syncconfig in case arch Makefile sets CROSS_COMPILE
      be779f03
    • Linus Torvalds's avatar
      Merge tag 'acpi-4.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · d290ef93
      Linus Torvalds authored
      Pull additional ACPI updates from Rafael Wysocki:
       "These update the ACPICA code in the kernel to upstream revision
        20180531 including one important AML parser fix and updates related to
        the IORT table, make the kernel recognize the "Windows 2017.2" _OSI
        string and update the customized methods documentation.
      
        Specifics:
      
         - Update the ACPICA code in the kernel to upstream revision 20180531
           including:
            * AML parser fix to continue loading tables after detecting an AML
              error (Erik Schmauss).
            * AML parser debug option to dump parse trees (Bob Moore).
            * Debugger updates (Bob Moore).
            * Initial bits of Unload () operator deprecation (Bob Moore).
            * Updates related to the IORT table (Robin Murphy).
      
         - Make Linux respond to the "Windows 2017.2" _OSI string which
           allows native Thunderbolt enumeration to be used on Dell systems
           and was unsafe before recent changes in the PCI subsystem (Mario
           Limonciello)
      
         - Update the ACPI method customization feature documentation (Erik
           Schmauss)"
      
      * tag 'acpi-4.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ACPICA: Recognize the _OSI string "Windows 2017.2"
        ACPICA: Update version to 20180531
        ACPICA: Interpreter: Begin deprecation of Unload operator
        ACPICA: AML parser: attempt to continue loading table after error
        ACPICA: Debugger: Reduce verbosity for module-level code errors.
        ACPICA: AML Parser: Add debug option to dump parse trees
        ACPICA: Debugger: Add count of namespace nodes after namespace dump
        ACPICA: IORT: Add PMCG node supprt
        ACPICA: IORT: Update for revision D
        ACPI / Documentation: update ACPI customize method feature docs
      d290ef93
    • Linus Torvalds's avatar
      Merge tag 'pm-4.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · d09fcecb
      Linus Torvalds authored
      Pull more power management updates from Rafael Wysocki:
       "These revert a recent PM core change that introduced a regression, fix
        the build when the recently added Kryo cpufreq driver is selected, add
        support for devices attached to multiple power domains to the generic
        power domains (genpd) framework, add support for iowait boosting on
        systens with hardware-managed P-states (HWP) enabled to the
        intel_pstate driver, modify the behavior of the wakeup_count device
        attribute in sysfs, fix a few issues and clean up some ugliness,
        mostly in cpufreq (core and drivers) and in the cpupower utility.
      
        Specifics:
      
         - Revert a recent PM core change that attempted to fix an issue
           related to device links, but introduced a regression (Rafael
           Wysocki)
      
         - Fix build when the recently added cpufreq driver for Kryo
           processors is selected by making it possible to build that driver
           as a module (Arnd Bergmann)
      
         - Fix the long idle detection mechanism in the out-of-band (ondemand
           and conservative) cpufreq governors (Chen Yu)
      
         - Add support for devices in multiple power domains to the generic
           power domains (genpd) framework (Ulf Hansson)
      
         - Add support for iowait boosting on systems with hardware-managed
           P-states (HWP) enabled to the intel_pstate driver and make it use
           that feature on systems with Skylake Xeon processors as it is
           reported to improve performance significantly on those systems
           (Srinivas Pandruvada)
      
         - Fix and update the acpi_cpufreq, ti-cpufreq and imx6q cpufreq
           drivers (Colin Ian King, Suman Anna, Sébastien Szymanski)
      
         - Change the behavior of the wakeup_count device attribute in sysfs
           to expose the number of events when the device might have aborted
           system suspend in progress (Ravi Chandra Sadineni)
      
         - Fix two minor issues in the cpupower utility (Abhishek Goel, Colin
           Ian King)"
      
      * tag 'pm-4.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        Revert "PM / runtime: Fixup reference counting of device link suppliers at probe"
        cpufreq: imx6q: check speed grades for i.MX6ULL
        cpufreq: governors: Fix long idle detection logic in load calculation
        cpufreq: intel_pstate: enable boost for Skylake Xeon
        PM / wakeup: Export wakeup_count instead of event_count via sysfs
        PM / Domains: Add dev_pm_domain_attach_by_id() to manage multi PM domains
        PM / Domains: Add support for multi PM domains per device to genpd
        PM / Domains: Split genpd_dev_pm_attach()
        PM / Domains: Don't attach devices in genpd with multi PM domains
        PM / Domains: dt: Allow power-domain property to be a list of specifiers
        cpufreq: intel_pstate: New sysfs entry to control HWP boost
        cpufreq: intel_pstate: HWP boost performance on IO wakeup
        cpufreq: intel_pstate: Add HWP boost utility and sched util hooks
        cpufreq: ti-cpufreq: Use devres managed API in probe()
        cpufreq: ti-cpufreq: Fix an incorrect error return value
        cpufreq: ACPI: make function acpi_cpufreq_fast_switch() static
        cpufreq: kryo: allow building as a loadable module
        cpupower : Fix header name to read idle state name
        cpupower: fix spelling mistake: "logilename" -> "logfilename"
      d09fcecb
    • Rafael J. Wysocki's avatar
      Merge branch 'acpica' · 67445532
      Rafael J. Wysocki authored
      ACPICA update to upstream revision 20180531 (including an important
      AML parser fix and updates related to IORT) and a change to start
      responding to the "Windows 2017.2" _OSI string.
      
      * acpica:
        ACPICA: Recognize the _OSI string "Windows 2017.2"
        ACPICA: Update version to 20180531
        ACPICA: Interpreter: Begin deprecation of Unload operator
        ACPICA: AML parser: attempt to continue loading table after error
        ACPICA: Debugger: Reduce verbosity for module-level code errors.
        ACPICA: AML Parser: Add debug option to dump parse trees
        ACPICA: Debugger: Add count of namespace nodes after namespace dump
        ACPICA: IORT: Add PMCG node supprt
        ACPICA: IORT: Update for revision D
      67445532
    • Rafael J. Wysocki's avatar
      Merge branches 'pm-domains' and 'pm-tools' · 6a900f88
      Rafael J. Wysocki authored
      Additional updates of the generic power domains (genpd) framework
      (support for devices attached to multiple domains) and the cpupower
      utility (minor fixes) for 4.18-rc1.
      
      * pm-domains:
        PM / Domains: Add dev_pm_domain_attach_by_id() to manage multi PM domains
        PM / Domains: Add support for multi PM domains per device to genpd
        PM / Domains: Split genpd_dev_pm_attach()
        PM / Domains: Don't attach devices in genpd with multi PM domains
        PM / Domains: dt: Allow power-domain property to be a list of specifiers
      
      * pm-tools:
        cpupower : Fix header name to read idle state name
        cpupower: fix spelling mistake: "logilename" -> "logfilename"
      6a900f88
    • Rafael J. Wysocki's avatar
      Merge branch 'pm-cpufreq' · 2652df3a
      Rafael J. Wysocki authored
      Additional cpufreq updates for 4.18-rc1: fixes and cleanups in the
      core and drivers and intel_pstate extension to do iowait boosting
      on systems with HWP that improves performance quite a bit.
      
      * pm-cpufreq:
        cpufreq: imx6q: check speed grades for i.MX6ULL
        cpufreq: governors: Fix long idle detection logic in load calculation
        cpufreq: intel_pstate: enable boost for Skylake Xeon
        cpufreq: intel_pstate: New sysfs entry to control HWP boost
        cpufreq: intel_pstate: HWP boost performance on IO wakeup
        cpufreq: intel_pstate: Add HWP boost utility and sched util hooks
        cpufreq: ti-cpufreq: Use devres managed API in probe()
        cpufreq: ti-cpufreq: Fix an incorrect error return value
        cpufreq: ACPI: make function acpi_cpufreq_fast_switch() static
        cpufreq: kryo: allow building as a loadable module
      2652df3a
    • Linus Torvalds's avatar
      Revert "debugfs: inode: debugfs_create_dir uses mode permission from parent" · f5b7769e
      Linus Torvalds authored
      This reverts commit 95cde3c5
      
      .
      
      The commit had good intentions, but it breaks kvm-tool and qemu-kvm.
      
      With it in place, "lkvm run" just fails with
      
        Error: KVM_CREATE_VM ioctl
        Warning: Failed init: kvm__init
      
      which isn't a wonderful error message, but bisection pinpointed the
      problematic commit.
      
      The problem is almost certainly due to the special kvm debugfs entries
      created dynamically by kvm under /sys/kernel/debug/kvm/.  See
      kvm_create_vm_debugfs()
      Bisected-and-reported-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      Cc: Wanpeng Li <kernellwp@gmail.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Thomas Richter <tmricht@linux.ibm.com>
      Cc: Kees Cook <keescook@chromium.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      f5b7769e
    • Linus Torvalds's avatar
      KVM: x86: VMX: fix build without hyper-v · dbee3d02
      Linus Torvalds authored
      Commit ceef7d10 ("KVM: x86: VMX: hyper-v: Enlightened MSR-Bitmap
      support") broke the build with Hyper-V disabled, because it accesses
      ms_hyperv.nested_features without checking if that exists.
      
      This is the quick-and-hacky build fix.
      
      I suspect the proper fix is to replace the
      
          static_branch_unlikely(&enable_evmcs)
      
      tests with an inline helper function that also checks that CONFIG_HYPERV
      is enabled, since without that, enable_evmcs makes no sense.
      
      But I want a working build environment first and foremost, and I'm upset
      this slipped through in the first place.  My primary build tests missed
      it because I tend to build with everything enabled, but it should have
      been caught in the kvm tree.
      
      Fixes: ceef7d10
      
       ("KVM: x86: VMX: hyper-v: Enlightened MSR-Bitmap support")
      Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      dbee3d02
    • Linus Torvalds's avatar
      Merge tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux · b08fc527
      Linus Torvalds authored
      Pull more overflow updates from Kees Cook:
       "The rest of the overflow changes for v4.18-rc1.
      
        This includes the explicit overflow fixes from Silvio, further
        struct_size() conversions from Matthew, and a bug fix from Dan.
      
        But the bulk of it is the treewide conversions to use either the
        2-factor argument allocators (e.g. kmalloc(a * b, ...) into
        kmalloc_array(a, b, ...) or the array_size() macros (e.g. vmalloc(a *
        b) into vmalloc(array_size(a, b)).
      
        Coccinelle was fighting me on several fronts, so I've done a bunch of
        manual whitespace updates in the patches as well.
      
        Summary:
      
         - Error path bug fix for overflow tests (Dan)
      
         - Additional struct_size() conversions (Matthew, Kees)
      
         - Explicitly reported overflow fixes (Silvio, Kees)
      
         - Add missing kvcalloc() function (Kees)
      
         - Treewide conversions of allocators to use either 2-factor argument
           variant when available, or array_size() and array3_size() as needed
           (Kees)"
      
      * tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (26 commits)
        treewide: Use array_size in f2fs_kvzalloc()
        treewide: Use array_size() in f2fs_kzalloc()
        treewide: Use array_size() in f2fs_kmalloc()
        treewide: Use array_size() in sock_kmalloc()
        treewide: Use array_size() in kvzalloc_node()
        treewide: Use array_size() in vzalloc_node()
        treewide: Use array_size() in vzalloc()
        treewide: Use array_size() in vmalloc()
        treewide: devm_kzalloc() -> devm_kcalloc()
        treewide: devm_kmalloc() -> devm_kmalloc_array()
        treewide: kvzalloc() -> kvcalloc()
        treewide: kvmalloc() -> kvmalloc_array()
        treewide: kzalloc_node() -> kcalloc_node()
        treewide: kzalloc() -> kcalloc()
        treewide: kmalloc() -> kmalloc_array()
        mm: Introduce kvcalloc()
        video: uvesafb: Fix integer overflow in allocation
        UBIFS: Fix potential integer overflow in allocation
        leds: Use struct_size() in allocation
        Convert intel uncore to struct_size
        ...
      b08fc527
    • Linus Torvalds's avatar
      Merge tag 'for-4.18/dm-changes-v2' of... · 4597fcff
      Linus Torvalds authored
      Merge tag 'for-4.18/dm-changes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
      
      Pull device mapper updates from Mike Snitzer:
      
       - Adjust various DM structure members to improve alignment relative to
         4.18 block's mempool_t and bioset changes.
      
       - Add DM writecache target that offers writeback caching to persistent
         memory or SSD.
      
       - Small DM core error message change to give context for why a DM table
         type transition wasn't allowed.
      
      * tag 'for-4.18/dm-changes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
        dm: add writecache target
        dm: adjust structure members to improve alignment
        dm: report which conflicting type caused error during table_load()
      4597fcff
  3. 12 Jun, 2018 16 commits
    • Kees Cook's avatar
      treewide: Use array_size in f2fs_kvzalloc() · 9d2a789c
      Kees Cook authored
      
      
      The f2fs_kvzalloc() function has no 2-factor argument form, so
      multiplication factors need to be wrapped in array_size(). This patch
      replaces cases of:
      
              f2fs_kvzalloc(handle, a * b, gfp)
      
      with:
              f2fs_kvzalloc(handle, array_size(a, b), gfp)
      
      as well as handling cases of:
      
              f2fs_kvzalloc(handle, a * b * c, gfp)
      
      with:
      
              f2fs_kvzalloc(handle, array3_size(a, b, c), gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              f2fs_kvzalloc(handle, 4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      expression HANDLE;
      type TYPE;
      expression THING, E;
      @@
      
      (
        f2fs_kvzalloc(HANDLE,
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression HANDLE;
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        f2fs_kvzalloc(HANDLE,
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      expression HANDLE;
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
        f2fs_kvzalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(TYPE) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(TYPE) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(THING) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(THING) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(THING) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(THING) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      expression HANDLE;
      identifier SIZE, COUNT;
      @@
      
        f2fs_kvzalloc(HANDLE,
      -	SIZE * COUNT
      +	array_size(COUNT, SIZE)
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression HANDLE;
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        f2fs_kvzalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression HANDLE;
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        f2fs_kvzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      expression HANDLE;
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        f2fs_kvzalloc(HANDLE,
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products
      // when they're not all constants...
      @@
      expression HANDLE;
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        f2fs_kvzalloc(HANDLE, C1 * C2 * C3, ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants.
      @@
      expression HANDLE;
      expression E1, E2;
      constant C1, C2;
      @@
      
      (
        f2fs_kvzalloc(HANDLE, C1 * C2, ...)
      |
        f2fs_kvzalloc(HANDLE,
      -	E1 * E2
      +	array_size(E1, E2)
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      9d2a789c
    • Kees Cook's avatar
      treewide: Use array_size() in f2fs_kzalloc() · 026f0507
      Kees Cook authored
      
      
      The f2fs_kzalloc() function has no 2-factor argument form, so
      multiplication factors need to be wrapped in array_size(). This patch
      replaces cases of:
      
              f2fs_kzalloc(handle, a * b, gfp)
      
      with:
              f2fs_kzalloc(handle, array_size(a, b), gfp)
      
      as well as handling cases of:
      
              f2fs_kzalloc(handle, a * b * c, gfp)
      
      with:
      
              f2fs_kzalloc(handle, array3_size(a, b, c), gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              f2fs_kzalloc(handle, 4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      expression HANDLE;
      type TYPE;
      expression THING, E;
      @@
      
      (
        f2fs_kzalloc(HANDLE,
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression HANDLE;
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        f2fs_kzalloc(HANDLE,
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      expression HANDLE;
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
        f2fs_kzalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(TYPE) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(TYPE) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(THING) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(THING) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(THING) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(THING) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      expression HANDLE;
      identifier SIZE, COUNT;
      @@
      
        f2fs_kzalloc(HANDLE,
      -	SIZE * COUNT
      +	array_size(COUNT, SIZE)
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression HANDLE;
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        f2fs_kzalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression HANDLE;
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        f2fs_kzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      expression HANDLE;
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        f2fs_kzalloc(HANDLE,
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kzalloc(HANDLE,
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products
      // when they're not all constants...
      @@
      expression HANDLE;
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        f2fs_kzalloc(HANDLE, C1 * C2 * C3, ...)
      |
        f2fs_kzalloc(HANDLE,
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants.
      @@
      expression HANDLE;
      expression E1, E2;
      constant C1, C2;
      @@
      
      (
        f2fs_kzalloc(HANDLE, C1 * C2, ...)
      |
        f2fs_kzalloc(HANDLE,
      -	E1 * E2
      +	array_size(E1, E2)
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      026f0507
    • Kees Cook's avatar
      treewide: Use array_size() in f2fs_kmalloc() · c8606593
      Kees Cook authored
      
      
      The f2fs_kmalloc() function has no 2-factor argument form, so
      multiplication factors need to be wrapped in array_size(). This patch
      replaces cases of:
      
              f2fs_kmalloc(handle, a * b, gfp)
      
      with:
              f2fs_kmalloc(handle, array_size(a, b), gfp)
      
      as well as handling cases of:
      
              f2fs_kmalloc(handle, a * b * c, gfp)
      
      with:
      
              f2fs_kmalloc(handle, array3_size(a, b, c), gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              f2fs_kmalloc(handle, 4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      expression HANDLE;
      type TYPE;
      expression THING, E;
      @@
      
      (
        f2fs_kmalloc(HANDLE,
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression HANDLE;
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        f2fs_kmalloc(HANDLE,
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      expression HANDLE;
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
        f2fs_kmalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(TYPE) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(TYPE) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(THING) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(THING) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(THING) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(THING) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      expression HANDLE;
      identifier SIZE, COUNT;
      @@
      
        f2fs_kmalloc(HANDLE,
      -	SIZE * COUNT
      +	array_size(COUNT, SIZE)
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression HANDLE;
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        f2fs_kmalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression HANDLE;
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        f2fs_kmalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      expression HANDLE;
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        f2fs_kmalloc(HANDLE,
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        f2fs_kmalloc(HANDLE,
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products
      // when they're not all constants...
      @@
      expression HANDLE;
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        f2fs_kmalloc(HANDLE, C1 * C2 * C3, ...)
      |
        f2fs_kmalloc(HANDLE,
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants.
      @@
      expression HANDLE;
      expression E1, E2;
      constant C1, C2;
      @@
      
      (
        f2fs_kmalloc(HANDLE, C1 * C2, ...)
      |
        f2fs_kmalloc(HANDLE,
      -	E1 * E2
      +	array_size(E1, E2)
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      c8606593
    • Kees Cook's avatar
      treewide: Use array_size() in sock_kmalloc() · 76e43e37
      Kees Cook authored
      
      
      The sock_kmalloc() function has no 2-factor argument form, so
      multiplication factors need to be wrapped in array_size(). This patch
      replaces cases of:
      
              sock_kmalloc(handle, a * b, gfp)
      
      with:
              sock_kmalloc(handle, array_size(a, b), gfp)
      
      as well as handling cases of:
      
              sock_kmalloc(handle, a * b * c, gfp)
      
      with:
      
              sock_kmalloc(handle, array3_size(a, b, c), gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              sock_kmalloc(handle, 4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      expression HANDLE;
      type TYPE;
      expression THING, E;
      @@
      
      (
        sock_kmalloc(HANDLE,
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression HANDLE;
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        sock_kmalloc(HANDLE,
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      expression HANDLE;
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
        sock_kmalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(TYPE) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(TYPE) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(THING) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(THING) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(THING) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(THING) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      expression HANDLE;
      identifier SIZE, COUNT;
      @@
      
        sock_kmalloc(HANDLE,
      -	SIZE * COUNT
      +	array_size(COUNT, SIZE)
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression HANDLE;
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        sock_kmalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression HANDLE;
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        sock_kmalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      expression HANDLE;
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        sock_kmalloc(HANDLE,
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        sock_kmalloc(HANDLE,
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products
      // when they're not all constants...
      @@
      expression HANDLE;
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        sock_kmalloc(HANDLE, C1 * C2 * C3, ...)
      |
        sock_kmalloc(HANDLE,
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants.
      @@
      expression HANDLE;
      expression E1, E2;
      constant C1, C2;
      @@
      
      (
        sock_kmalloc(HANDLE, C1 * C2, ...)
      |
        sock_kmalloc(HANDLE,
      -	E1 * E2
      +	array_size(E1, E2)
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      76e43e37
    • Kees Cook's avatar
      treewide: Use array_size() in kvzalloc_node() · 84ca176b
      Kees Cook authored
      
      
      The kvzalloc_node() function has no 2-factor argument form, so
      multiplication factors need to be wrapped in array_size(). This patch
      replaces cases of:
      
              kvzalloc_node(a * b, gfp, node)
      
      with:
              kvzalloc_node(array_size(a, b), gfp, node)
      
      as well as handling cases of:
      
              kvzalloc_node(a * b * c, gfp, node)
      
      with:
      
              kvzalloc_node(array3_size(a, b, c), gfp, node)
      
      This does, however, attempt to ignore constant size factors like:
      
              kvzalloc_node(4 * 1024, gfp, node)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      type TYPE;
      expression THING, E;
      @@
      
      (
        kvzalloc_node(
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        kvzalloc_node(
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        kvzalloc_node(
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kvzalloc_node(
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kvzalloc_node(
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        kvzalloc_node(
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        kvzalloc_node(
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        kvzalloc_node(
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        kvzalloc_node(
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        kvzalloc_node(
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
        kvzalloc_node(
      -	sizeof(TYPE) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(TYPE) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(TYPE) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(TYPE) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(THING) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(THING) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(THING) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(THING) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      identifier SIZE, COUNT;
      @@
      
        kvzalloc_node(
      -	SIZE * COUNT
      +	array_size(COUNT, SIZE)
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        kvzalloc_node(
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        kvzalloc_node(
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        kvzalloc_node(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        kvzalloc_node(
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc_node(
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc_node(
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc_node(
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc_node(
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc_node(
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc_node(
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc_node(
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products
      // when they're not all constants...
      @@
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        kvzalloc_node(C1 * C2 * C3, ...)
      |
        kvzalloc_node(
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants.
      @@
      expression E1, E2;
      constant C1, C2;
      @@
      
      (
        kvzalloc_node(C1 * C2, ...)
      |
        kvzalloc_node(
      -	E1 * E2
      +	array_size(E1, E2)
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      84ca176b
    • Kees Cook's avatar
      treewide: Use array_size() in vzalloc_node() · fd7beced
      Kees Cook authored
      
      
      The vzalloc_node() function has no 2-factor argument form, so
      multiplication factors need to be wrapped in array_size(). This patch
      replaces cases of:
      
              vzalloc_node(a * b, node)
      
      with:
              vzalloc_node(array_size(a, b), node)
      
      as well as handling cases of:
      
              vzalloc_node(a * b * c, node)
      
      with:
      
              vzalloc_node(array3_size(a, b, c), node)
      
      This does, however, attempt to ignore constant size factors like:
      
              vzalloc_node(4 * 1024, node)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      type TYPE;
      expression THING, E;
      @@
      
      (
        vzalloc_node(
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        vzalloc_node(
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        vzalloc_node(
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        vzalloc_node(
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        vzalloc_node(
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        vzalloc_node(
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        vzalloc_node(
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        vzalloc_node(
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        vzalloc_node(
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        vzalloc_node(
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
        vzalloc_node(
      -	sizeof(TYPE) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        vzalloc_node(
      -	sizeof(TYPE) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        vzalloc_node(
      -	sizeof(TYPE) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        vzalloc_node(
      -	sizeof(TYPE) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        vzalloc_node(
      -	sizeof(THING) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        vzalloc_node(
      -	sizeof(THING) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        vzalloc_node(
      -	sizeof(THING) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      |
        vzalloc_node(
      -	sizeof(THING) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      identifier SIZE, COUNT;
      @@
      
        vzalloc_node(
      -	SIZE * COUNT
      +	array_size(COUNT, SIZE)
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        vzalloc_node(
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vzalloc_node(
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vzalloc_node(
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vzalloc_node(
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vzalloc_node(
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        vzalloc_node(
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        vzalloc_node(
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        vzalloc_node(
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        vzalloc_node(
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        vzalloc_node(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        vzalloc_node(
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        vzalloc_node(
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        vzalloc_node(
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        vzalloc_node(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        vzalloc_node(
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc_node(
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc_node(
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc_node(
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc_node(
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc_node(
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc_node(
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc_node(
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products
      // when they're not all constants...
      @@
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        vzalloc_node(C1 * C2 * C3, ...)
      |
        vzalloc_node(
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants.
      @@
      expression E1, E2;
      constant C1, C2;
      @@
      
      (
        vzalloc_node(C1 * C2, ...)
      |
        vzalloc_node(
      -	E1 * E2
      +	array_size(E1, E2)
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      fd7beced
    • Kees Cook's avatar
      treewide: Use array_size() in vzalloc() · fad953ce
      Kees Cook authored
      
      
      The vzalloc() function has no 2-factor argument form, so multiplication
      factors need to be wrapped in array_size(). This patch replaces cases of:
      
              vzalloc(a * b)
      
      with:
              vzalloc(array_size(a, b))
      
      as well as handling cases of:
      
              vzalloc(a * b * c)
      
      with:
      
              vzalloc(array3_size(a, b, c))
      
      This does, however, attempt to ignore constant size factors like:
      
              vzalloc(4 * 1024)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      type TYPE;
      expression THING, E;
      @@
      
      (
        vzalloc(
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        vzalloc(
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        vzalloc(
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        vzalloc(
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        vzalloc(
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        vzalloc(
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        vzalloc(
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        vzalloc(
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        vzalloc(
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        vzalloc(
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
        vzalloc(
      -	sizeof(TYPE) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        vzalloc(
      -	sizeof(TYPE) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        vzalloc(
      -	sizeof(TYPE) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        vzalloc(
      -	sizeof(TYPE) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        vzalloc(
      -	sizeof(THING) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        vzalloc(
      -	sizeof(THING) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        vzalloc(
      -	sizeof(THING) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      |
        vzalloc(
      -	sizeof(THING) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      identifier SIZE, COUNT;
      @@
      
        vzalloc(
      -	SIZE * COUNT
      +	array_size(COUNT, SIZE)
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        vzalloc(
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vzalloc(
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vzalloc(
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vzalloc(
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vzalloc(
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        vzalloc(
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        vzalloc(
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        vzalloc(
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        vzalloc(
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        vzalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        vzalloc(
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        vzalloc(
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        vzalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        vzalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        vzalloc(
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc(
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc(
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc(
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc(
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc(
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc(
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vzalloc(
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products
      // when they're not all constants...
      @@
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        vzalloc(C1 * C2 * C3, ...)
      |
        vzalloc(
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants.
      @@
      expression E1, E2;
      constant C1, C2;
      @@
      
      (
        vzalloc(C1 * C2, ...)
      |
        vzalloc(
      -	E1 * E2
      +	array_size(E1, E2)
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      fad953ce
    • Kees Cook's avatar
      treewide: Use array_size() in vmalloc() · 42bc47b3
      Kees Cook authored
      
      
      The vmalloc() function has no 2-factor argument form, so multiplication
      factors need to be wrapped in array_size(). This patch replaces cases of:
      
              vmalloc(a * b)
      
      with:
              vmalloc(array_size(a, b))
      
      as well as handling cases of:
      
              vmalloc(a * b * c)
      
      with:
      
              vmalloc(array3_size(a, b, c))
      
      This does, however, attempt to ignore constant size factors like:
      
              vmalloc(4 * 1024)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      type TYPE;
      expression THING, E;
      @@
      
      (
        vmalloc(
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        vmalloc(
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        vmalloc(
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
        vmalloc(
      -	sizeof(TYPE) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      identifier SIZE, COUNT;
      @@
      
        vmalloc(
      -	SIZE * COUNT
      +	array_size(COUNT, SIZE)
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        vmalloc(
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        vmalloc(
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        vmalloc(
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        vmalloc(
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        vmalloc(
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products
      // when they're not all constants...
      @@
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        vmalloc(C1 * C2 * C3, ...)
      |
        vmalloc(
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants.
      @@
      expression E1, E2;
      constant C1, C2;
      @@
      
      (
        vmalloc(C1 * C2, ...)
      |
        vmalloc(
      -	E1 * E2
      +	array_size(E1, E2)
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      42bc47b3
    • Kees Cook's avatar
      treewide: devm_kzalloc() -> devm_kcalloc() · a86854d0
      Kees Cook authored
      
      
      The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc().
      This patch replaces cases of:
      
              devm_kzalloc(handle, a * b, gfp)
      
      with:
              devm_kcalloc(handle, a * b, gfp)
      
      as well as handling cases of:
      
              devm_kzalloc(handle, a * b * c, gfp)
      
      with:
      
              devm_kzalloc(handle, array3_size(a, b, c), gfp)
      
      as it's slightly less ugly than:
      
              devm_kcalloc(handle, array_size(a, b), c, gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              devm_kzalloc(handle, 4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      Some manual whitespace fixes were needed in this patch, as Coccinelle
      really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...".
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      expression HANDLE;
      type TYPE;
      expression THING, E;
      @@
      
      (
        devm_kzalloc(HANDLE,
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression HANDLE;
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        devm_kzalloc(HANDLE,
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      expression HANDLE;
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(TYPE) * (COUNT_ID)
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(TYPE) * COUNT_ID
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(TYPE) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(TYPE) * COUNT_CONST
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(THING) * (COUNT_ID)
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(THING) * COUNT_ID
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(THING) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(THING)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(THING) * COUNT_CONST
      +	COUNT_CONST, sizeof(THING)
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      expression HANDLE;
      identifier SIZE, COUNT;
      @@
      
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	SIZE * COUNT
      +	COUNT, SIZE
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression HANDLE;
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression HANDLE;
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      expression HANDLE;
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        devm_kzalloc(HANDLE,
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products,
      // when they're not all constants...
      @@
      expression HANDLE;
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
      |
        devm_kzalloc(HANDLE,
      -	(E1) * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	(E1) * (E2) * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	(E1) * (E2) * (E3)
      +	array3_size(E1, E2, E3)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants,
      // keeping sizeof() as the second factor argument.
      @@
      expression HANDLE;
      expression THING, E1, E2;
      type TYPE;
      constant C1, C2, C3;
      @@
      
      (
        devm_kzalloc(HANDLE, sizeof(THING) * C2, ...)
      |
        devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...)
      |
        devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
      |
        devm_kzalloc(HANDLE, C1 * C2, ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(TYPE) * (E2)
      +	E2, sizeof(TYPE)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(TYPE) * E2
      +	E2, sizeof(TYPE)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(THING) * (E2)
      +	E2, sizeof(THING)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(THING) * E2
      +	E2, sizeof(THING)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	(E1) * E2
      +	E1, E2
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	(E1) * (E2)
      +	E1, E2
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	E1 * E2
      +	E1, E2
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      a86854d0
    • Kees Cook's avatar
      treewide: devm_kmalloc() -> devm_kmalloc_array() · 3c4211ba
      Kees Cook authored
      
      
      The devm_kmalloc() function has a 2-factor argument form,
      devm_kmalloc_array(). This patch replaces cases of:
      
              devm_kmalloc(handle, a * b, gfp)
      
      with:
              devm_kmalloc_array(handle, a * b, gfp)
      
      as well as handling cases of:
      
              devm_kmalloc(handle, a * b * c, gfp)
      
      with:
      
              devm_kmalloc(handle, array3_size(a, b, c), gfp)
      
      as it's slightly less ugly than:
      
              devm_kmalloc_array(handle, array_size(a, b), c, gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              devm_kmalloc(handle, 4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      Some manual whitespace fixes were needed in this patch, as Coccinelle
      really liked to write "=devm_kmalloc..." instead of "= devm_kmalloc...".
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      expression HANDLE;
      type TYPE;
      expression THING, E;
      @@
      
      (
        devm_kmalloc(HANDLE,
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression HANDLE;
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        devm_kmalloc(HANDLE,
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      expression HANDLE;
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	sizeof(TYPE) * (COUNT_ID)
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	sizeof(TYPE) * COUNT_ID
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	sizeof(TYPE) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	sizeof(TYPE) * COUNT_CONST
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	sizeof(THING) * (COUNT_ID)
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	sizeof(THING) * COUNT_ID
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	sizeof(THING) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(THING)
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	sizeof(THING) * COUNT_CONST
      +	COUNT_CONST, sizeof(THING)
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      expression HANDLE;
      identifier SIZE, COUNT;
      @@
      
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	SIZE * COUNT
      +	COUNT, SIZE
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression HANDLE;
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        devm_kmalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression HANDLE;
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        devm_kmalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      expression HANDLE;
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        devm_kmalloc(HANDLE,
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products,
      // when they're not all constants...
      @@
      expression HANDLE;
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        devm_kmalloc(HANDLE, C1 * C2 * C3, ...)
      |
        devm_kmalloc(HANDLE,
      -	(E1) * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	(E1) * (E2) * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	(E1) * (E2) * (E3)
      +	array3_size(E1, E2, E3)
        , ...)
      |
        devm_kmalloc(HANDLE,
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants,
      // keeping sizeof() as the second factor argument.
      @@
      expression HANDLE;
      expression THING, E1, E2;
      type TYPE;
      constant C1, C2, C3;
      @@
      
      (
        devm_kmalloc(HANDLE, sizeof(THING) * C2, ...)
      |
        devm_kmalloc(HANDLE, sizeof(TYPE) * C2, ...)
      |
        devm_kmalloc(HANDLE, C1 * C2 * C3, ...)
      |
        devm_kmalloc(HANDLE, C1 * C2, ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	sizeof(TYPE) * (E2)
      +	E2, sizeof(TYPE)
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	sizeof(TYPE) * E2
      +	E2, sizeof(TYPE)
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	sizeof(THING) * (E2)
      +	E2, sizeof(THING)
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	sizeof(THING) * E2
      +	E2, sizeof(THING)
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	(E1) * E2
      +	E1, E2
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	(E1) * (E2)
      +	E1, E2
        , ...)
      |
      - devm_kmalloc
      + devm_kmalloc_array
        (HANDLE,
      -	E1 * E2
      +	E1, E2
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      3c4211ba
    • Kees Cook's avatar
      treewide: kvzalloc() -> kvcalloc() · 778e1cdd
      Kees Cook authored
      
      
      The kvzalloc() function has a 2-factor argument form, kvcalloc(). This
      patch replaces cases of:
      
              kvzalloc(a * b, gfp)
      
      with:
              kvcalloc(a * b, gfp)
      
      as well as handling cases of:
      
              kvzalloc(a * b * c, gfp)
      
      with:
      
              kvzalloc(array3_size(a, b, c), gfp)
      
      as it's slightly less ugly than:
      
              kvcalloc(array_size(a, b), c, gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              kvzalloc(4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      type TYPE;
      expression THING, E;
      @@
      
      (
        kvzalloc(
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        kvzalloc(
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        kvzalloc(
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kvzalloc(
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kvzalloc(
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        kvzalloc(
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        kvzalloc(
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        kvzalloc(
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        kvzalloc(
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        kvzalloc(
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
      - kvzalloc
      + kvcalloc
        (
      -	sizeof(TYPE) * (COUNT_ID)
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	sizeof(TYPE) * COUNT_ID
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	sizeof(TYPE) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	sizeof(TYPE) * COUNT_CONST
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	sizeof(THING) * (COUNT_ID)
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	sizeof(THING) * COUNT_ID
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	sizeof(THING) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(THING)
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	sizeof(THING) * COUNT_CONST
      +	COUNT_CONST, sizeof(THING)
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      identifier SIZE, COUNT;
      @@
      
      - kvzalloc
      + kvcalloc
        (
      -	SIZE * COUNT
      +	COUNT, SIZE
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        kvzalloc(
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kvzalloc(
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kvzalloc(
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kvzalloc(
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kvzalloc(
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kvzalloc(
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kvzalloc(
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kvzalloc(
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        kvzalloc(
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kvzalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kvzalloc(
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kvzalloc(
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kvzalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        kvzalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        kvzalloc(
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc(
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc(
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc(
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc(
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc(
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc(
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvzalloc(
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products,
      // when they're not all constants...
      @@
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        kvzalloc(C1 * C2 * C3, ...)
      |
        kvzalloc(
      -	(E1) * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kvzalloc(
      -	(E1) * (E2) * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kvzalloc(
      -	(E1) * (E2) * (E3)
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kvzalloc(
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants,
      // keeping sizeof() as the second factor argument.
      @@
      expression THING, E1, E2;
      type TYPE;
      constant C1, C2, C3;
      @@
      
      (
        kvzalloc(sizeof(THING) * C2, ...)
      |
        kvzalloc(sizeof(TYPE) * C2, ...)
      |
        kvzalloc(C1 * C2 * C3, ...)
      |
        kvzalloc(C1 * C2, ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	sizeof(TYPE) * (E2)
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	sizeof(TYPE) * E2
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	sizeof(THING) * (E2)
      +	E2, sizeof(THING)
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	sizeof(THING) * E2
      +	E2, sizeof(THING)
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	(E1) * E2
      +	E1, E2
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	(E1) * (E2)
      +	E1, E2
        , ...)
      |
      - kvzalloc
      + kvcalloc
        (
      -	E1 * E2
      +	E1, E2
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      778e1cdd
    • Kees Cook's avatar
      treewide: kvmalloc() -> kvmalloc_array() · 344476e1
      Kees Cook authored
      
      
      The kvmalloc() function has a 2-factor argument form, kvmalloc_array(). This
      patch replaces cases of:
      
              kvmalloc(a * b, gfp)
      
      with:
              kvmalloc_array(a * b, gfp)
      
      as well as handling cases of:
      
              kvmalloc(a * b * c, gfp)
      
      with:
      
              kvmalloc(array3_size(a, b, c), gfp)
      
      as it's slightly less ugly than:
      
              kvmalloc_array(array_size(a, b), c, gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              kvmalloc(4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      type TYPE;
      expression THING, E;
      @@
      
      (
        kvmalloc(
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        kvmalloc(
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        kvmalloc(
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kvmalloc(
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kvmalloc(
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        kvmalloc(
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        kvmalloc(
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        kvmalloc(
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        kvmalloc(
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        kvmalloc(
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
      - kvmalloc
      + kvmalloc_array
        (
      -	sizeof(TYPE) * (COUNT_ID)
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	sizeof(TYPE) * COUNT_ID
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	sizeof(TYPE) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	sizeof(TYPE) * COUNT_CONST
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	sizeof(THING) * (COUNT_ID)
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	sizeof(THING) * COUNT_ID
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	sizeof(THING) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(THING)
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	sizeof(THING) * COUNT_CONST
      +	COUNT_CONST, sizeof(THING)
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      identifier SIZE, COUNT;
      @@
      
      - kvmalloc
      + kvmalloc_array
        (
      -	SIZE * COUNT
      +	COUNT, SIZE
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        kvmalloc(
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kvmalloc(
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kvmalloc(
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kvmalloc(
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kvmalloc(
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kvmalloc(
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kvmalloc(
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kvmalloc(
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        kvmalloc(
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kvmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kvmalloc(
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kvmalloc(
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kvmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        kvmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        kvmalloc(
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvmalloc(
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvmalloc(
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvmalloc(
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvmalloc(
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvmalloc(
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvmalloc(
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kvmalloc(
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products,
      // when they're not all constants...
      @@
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        kvmalloc(C1 * C2 * C3, ...)
      |
        kvmalloc(
      -	(E1) * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kvmalloc(
      -	(E1) * (E2) * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kvmalloc(
      -	(E1) * (E2) * (E3)
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kvmalloc(
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants,
      // keeping sizeof() as the second factor argument.
      @@
      expression THING, E1, E2;
      type TYPE;
      constant C1, C2, C3;
      @@
      
      (
        kvmalloc(sizeof(THING) * C2, ...)
      |
        kvmalloc(sizeof(TYPE) * C2, ...)
      |
        kvmalloc(C1 * C2 * C3, ...)
      |
        kvmalloc(C1 * C2, ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	sizeof(TYPE) * (E2)
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	sizeof(TYPE) * E2
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	sizeof(THING) * (E2)
      +	E2, sizeof(THING)
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	sizeof(THING) * E2
      +	E2, sizeof(THING)
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	(E1) * E2
      +	E1, E2
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	(E1) * (E2)
      +	E1, E2
        , ...)
      |
      - kvmalloc
      + kvmalloc_array
        (
      -	E1 * E2
      +	E1, E2
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      344476e1
    • Kees Cook's avatar
      treewide: kzalloc_node() -> kcalloc_node() · 590b5b7d
      Kees Cook authored
      
      
      The kzalloc_node() function has a 2-factor argument form, kcalloc_node(). This
      patch replaces cases of:
      
              kzalloc_node(a * b, gfp, node)
      
      with:
              kcalloc_node(a * b, gfp, node)
      
      as well as handling cases of:
      
              kzalloc_node(a * b * c, gfp, node)
      
      with:
      
              kzalloc_node(array3_size(a, b, c), gfp, node)
      
      as it's slightly less ugly than:
      
              kcalloc_node(array_size(a, b), c, gfp, node)
      
      This does, however, attempt to ignore constant size factors like:
      
              kzalloc_node(4 * 1024, gfp, node)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      type TYPE;
      expression THING, E;
      @@
      
      (
        kzalloc_node(
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        kzalloc_node(
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        kzalloc_node(
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kzalloc_node(
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kzalloc_node(
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        kzalloc_node(
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        kzalloc_node(
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        kzalloc_node(
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        kzalloc_node(
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        kzalloc_node(
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
      - kzalloc_node
      + kcalloc_node
        (
      -	sizeof(TYPE) * (COUNT_ID)
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	sizeof(TYPE) * COUNT_ID
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	sizeof(TYPE) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	sizeof(TYPE) * COUNT_CONST
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	sizeof(THING) * (COUNT_ID)
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	sizeof(THING) * COUNT_ID
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	sizeof(THING) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(THING)
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	sizeof(THING) * COUNT_CONST
      +	COUNT_CONST, sizeof(THING)
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      identifier SIZE, COUNT;
      @@
      
      - kzalloc_node
      + kcalloc_node
        (
      -	SIZE * COUNT
      +	COUNT, SIZE
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        kzalloc_node(
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kzalloc_node(
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kzalloc_node(
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kzalloc_node(
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kzalloc_node(
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kzalloc_node(
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kzalloc_node(
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kzalloc_node(
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        kzalloc_node(
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kzalloc_node(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kzalloc_node(
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kzalloc_node(
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kzalloc_node(
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        kzalloc_node(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        kzalloc_node(
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc_node(
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc_node(
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc_node(
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc_node(
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc_node(
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc_node(
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc_node(
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products,
      // when they're not all constants...
      @@
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        kzalloc_node(C1 * C2 * C3, ...)
      |
        kzalloc_node(
      -	(E1) * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kzalloc_node(
      -	(E1) * (E2) * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kzalloc_node(
      -	(E1) * (E2) * (E3)
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kzalloc_node(
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants,
      // keeping sizeof() as the second factor argument.
      @@
      expression THING, E1, E2;
      type TYPE;
      constant C1, C2, C3;
      @@
      
      (
        kzalloc_node(sizeof(THING) * C2, ...)
      |
        kzalloc_node(sizeof(TYPE) * C2, ...)
      |
        kzalloc_node(C1 * C2 * C3, ...)
      |
        kzalloc_node(C1 * C2, ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	sizeof(TYPE) * (E2)
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	sizeof(TYPE) * E2
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	sizeof(THING) * (E2)
      +	E2, sizeof(THING)
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	sizeof(THING) * E2
      +	E2, sizeof(THING)
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	(E1) * E2
      +	E1, E2
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	(E1) * (E2)
      +	E1, E2
        , ...)
      |
      - kzalloc_node
      + kcalloc_node
        (
      -	E1 * E2
      +	E1, E2
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      590b5b7d
    • Kees Cook's avatar
      treewide: kzalloc() -> kcalloc() · 6396bb22
      Kees Cook authored
      
      
      The kzalloc() function has a 2-factor argument form, kcalloc(). This
      patch replaces cases of:
      
              kzalloc(a * b, gfp)
      
      with:
              kcalloc(a * b, gfp)
      
      as well as handling cases of:
      
              kzalloc(a * b * c, gfp)
      
      with:
      
              kzalloc(array3_size(a, b, c), gfp)
      
      as it's slightly less ugly than:
      
              kzalloc_array(array_size(a, b), c, gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              kzalloc(4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      type TYPE;
      expression THING, E;
      @@
      
      (
        kzalloc(
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        kzalloc(
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        kzalloc(
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
      - kzalloc
      + kcalloc
        (
      -	sizeof(TYPE) * (COUNT_ID)
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(TYPE) * COUNT_ID
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(TYPE) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(TYPE) * COUNT_CONST
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(THING) * (COUNT_ID)
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(THING) * COUNT_ID
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(THING) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(THING)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(THING) * COUNT_CONST
      +	COUNT_CONST, sizeof(THING)
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      identifier SIZE, COUNT;
      @@
      
      - kzalloc
      + kcalloc
        (
      -	SIZE * COUNT
      +	COUNT, SIZE
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        kzalloc(
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kzalloc(
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kzalloc(
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kzalloc(
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kzalloc(
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kzalloc(
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kzalloc(
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kzalloc(
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        kzalloc(
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kzalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kzalloc(
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kzalloc(
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kzalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        kzalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        kzalloc(
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products,
      // when they're not all constants...
      @@
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        kzalloc(C1 * C2 * C3, ...)
      |
        kzalloc(
      -	(E1) * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kzalloc(
      -	(E1) * (E2) * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kzalloc(
      -	(E1) * (E2) * (E3)
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kzalloc(
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants,
      // keeping sizeof() as the second factor argument.
      @@
      expression THING, E1, E2;
      type TYPE;
      constant C1, C2, C3;
      @@
      
      (
        kzalloc(sizeof(THING) * C2, ...)
      |
        kzalloc(sizeof(TYPE) * C2, ...)
      |
        kzalloc(C1 * C2 * C3, ...)
      |
        kzalloc(C1 * C2, ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(TYPE) * (E2)
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(TYPE) * E2
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(THING) * (E2)
      +	E2, sizeof(THING)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(THING) * E2
      +	E2, sizeof(THING)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	(E1) * E2
      +	E1, E2
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	(E1) * (E2)
      +	E1, E2
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	E1 * E2
      +	E1, E2
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      6396bb22
    • Kees Cook's avatar
      treewide: kmalloc() -> kmalloc_array() · 6da2ec56
      Kees Cook authored
      
      
      The kmalloc() function has a 2-factor argument form, kmalloc_array(). This
      patch replaces cases of:
      
              kmalloc(a * b, gfp)
      
      with:
              kmalloc_array(a * b, gfp)
      
      as well as handling cases of:
      
              kmalloc(a * b * c, gfp)
      
      with:
      
              kmalloc(array3_size(a, b, c), gfp)
      
      as it's slightly less ugly than:
      
              kmalloc_array(array_size(a, b), c, gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              kmalloc(4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The tools/ directory was manually excluded, since it has its own
      implementation of kmalloc().
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      type TYPE;
      expression THING, E;
      @@
      
      (
        kmalloc(
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        kmalloc(
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        kmalloc(
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(TYPE) * (COUNT_ID)
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(TYPE) * COUNT_ID
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(TYPE) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(TYPE) * COUNT_CONST
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(THING) * (COUNT_ID)
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(THING) * COUNT_ID
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(THING) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(THING)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(THING) * COUNT_CONST
      +	COUNT_CONST, sizeof(THING)
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      identifier SIZE, COUNT;
      @@
      
      - kmalloc
      + kmalloc_array
        (
      -	SIZE * COUNT
      +	COUNT, SIZE
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        kmalloc(
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kmalloc(
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kmalloc(
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kmalloc(
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kmalloc(
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kmalloc(
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kmalloc(
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kmalloc(
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        kmalloc(
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kmalloc(
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kmalloc(
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        kmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        kmalloc(
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products,
      // when they're not all constants...
      @@
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        kmalloc(C1 * C2 * C3, ...)
      |
        kmalloc(
      -	(E1) * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kmalloc(
      -	(E1) * (E2) * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kmalloc(
      -	(E1) * (E2) * (E3)
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kmalloc(
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants,
      // keeping sizeof() as the second factor argument.
      @@
      expression THING, E1, E2;
      type TYPE;
      constant C1, C2, C3;
      @@
      
      (
        kmalloc(sizeof(THING) * C2, ...)
      |
        kmalloc(sizeof(TYPE) * C2, ...)
      |
        kmalloc(C1 * C2 * C3, ...)
      |
        kmalloc(C1 * C2, ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(TYPE) * (E2)
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(TYPE) * E2
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(THING) * (E2)
      +	E2, sizeof(THING)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(THING) * E2
      +	E2, sizeof(THING)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	(E1) * E2
      +	E1, E2
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	(E1) * (E2)
      +	E1, E2
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	E1 * E2
      +	E1, E2
        , ...)
      )
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      6da2ec56
    • Kees Cook's avatar
      mm: Introduce kvcalloc() · 1c542f38
      Kees Cook authored
      
      
      The kv*alloc()-family was missing kvcalloc(). Adding this allows for
      2-argument multiplication conversions of kvzalloc(a * b, ...) into
      kvcalloc(a, b, ...).
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      1c542f38