1. 13 Nov, 2019 2 commits
  2. 12 Nov, 2019 6 commits
  3. 11 Nov, 2019 1 commit
  4. 10 Nov, 2019 2 commits
  5. 09 Nov, 2019 9 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 0058b0a5
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) BPF sample build fixes from Björn Töpel
      
       2) Fix powerpc bpf tail call implementation, from Eric Dumazet.
      
       3) DCCP leaks jiffies on the wire, fix also from Eric Dumazet.
      
       4) Fix crash in ebtables when using dnat target, from Florian Westphal.
      
       5) Fix port disable handling whne removing bcm_sf2 driver, from Florian
          Fainelli.
      
       6) Fix kTLS sk_msg trim on fallback to copy mode, from Jakub Kicinski.
      
       7) Various KCSAN fixes all over the networking, from Eric Dumazet.
      
       8) Memory leaks in mlx5 driver, from Alex Vesker.
      
       9) SMC interface refcounting fix, from Ursula Braun.
      
      10) TSO descriptor handling fixes in stmmac driver, from Jose Abreu.
      
      11) Add a TX lock to synchonize the kTLS TX path properly with crypto
          operations. From Jakub Kicinski.
      
      12) Sock refcount during shutdown fix in vsock/virtio code, from Stefano
          Garzarella.
      
      13) Infinite loop in Intel ice driver, from Colin Ian King.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (108 commits)
        ixgbe: need_wakeup flag might not be set for Tx
        i40e: need_wakeup flag might not be set for Tx
        igb/igc: use ktime accessors for skb->tstamp
        i40e: Fix for ethtool -m issue on X722 NIC
        iavf: initialize ITRN registers with correct values
        ice: fix potential infinite loop because loop counter being too small
        qede: fix NULL pointer deref in __qede_remove()
        net: fix data-race in neigh_event_send()
        vsock/virtio: fix sock refcnt holding during the shutdown
        net: ethernet: octeon_mgmt: Account for second possible VLAN header
        mac80211: fix station inactive_time shortly after boot
        net/fq_impl: Switch to kvmalloc() for memory allocation
        mac80211: fix ieee80211_txq_setup_flows() failure path
        ipv4: Fix table id reference in fib_sync_down_addr
        ipv6: fixes rt6_probe() and fib6_nh->last_probe init
        net: hns: Fix the stray netpoll locks causing deadlock in NAPI path
        net: usb: qmi_wwan: add support for DW5821e with eSIM support
        CDC-NCM: handle incomplete transfer of MTU
        nfc: netlink: fix double device reference drop
        NFC: st21nfca: fix double free
        ...
      0058b0a5
    • Linus Torvalds's avatar
      Merge tag 'for-linus-2019-11-08' of git://git.kernel.dk/linux-block · 5cb8418c
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
      
       - Two NVMe device removal crash fixes, and a compat fixup for for an
         ioctl that was introduced in this release (Anton, Charles, Max - via
         Keith)
      
       - Missing error path mutex unlock for drbd (Dan)
      
       - cgroup writeback fixup on dead memcg (Tejun)
      
       - blkcg online stats print fix (Tejun)
      
      * tag 'for-linus-2019-11-08' of git://git.kernel.dk/linux-block:
        cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead
        block: drbd: remove a stray unlock in __drbd_send_protocol()
        blkcg: make blkcg_print_stat() print stats only for online blkgs
        nvme: change nvme_passthru_cmd64 to explicitly mark rsvd
        nvme-multipath: fix crash in nvme_mpath_clear_ctrl_paths
        nvme-rdma: fix a segmentation fault during module unload
      5cb8418c
    • David S. Miller's avatar
      Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue · a2582cdc
      David S. Miller authored
      
      
      Jeff Kirsher says:
      
      ====================
      Intel Wired LAN Driver Fixes 2019-11-08
      
      This series contains fixes to igb, igc, ixgbe, i40e, iavf and ice
      drivers.
      
      Colin Ian King fixes a potentially wrap-around counter in a for-loop.
      
      Nick fixes the default ITR values for the iavf driver to 50 usecs
      interval.
      
      Arkadiusz fixes 'ethtool -m' for X722 devices where the correct value
      cannot be obtained from the firmware, so add X722 to the check to ensure
      the wrong value is not returned.
      
      Jake fixes igb and igc drivers in their implementation of launch time
      support by declaring skb->tstamp value as ktime_t instead of s64.
      
      Magnus fixes ixgbe and i40e where the need_wakeup flag for transmit may
      not be set for AF_XDP sockets that are only used to send packets.
      ====================
      
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a2582cdc
    • Magnus Karlsson's avatar
      ixgbe: need_wakeup flag might not be set for Tx · 0843aa8f
      Magnus Karlsson authored
      
      
      The need_wakeup flag for Tx might not be set for AF_XDP sockets that
      are only used to send packets. This happens if there is at least one
      outstanding packet that has not been completed by the hardware and we
      get that corresponding completion (which will not generate an
      interrupt since interrupts are disabled in the napi poll loop) between
      the time we stopped processing the Tx completions and interrupts are
      enabled again. In this case, the need_wakeup flag will have been
      cleared at the end of the Tx completion processing as we believe we
      will get an interrupt from the outstanding completion at a later point
      in time. But if this completion interrupt occurs before interrupts
      are enable, we lose it and should at that point really have set the
      need_wakeup flag since there are no more outstanding completions that
      can generate an interrupt to continue the processing. When this
      happens, user space will see a Tx queue need_wakeup of 0 and skip
      issuing a syscall, which means will never get into the Tx processing
      again and we have a deadlock.
      
      This patch introduces a quick fix for this issue by just setting the
      need_wakeup flag for Tx to 1 all the time. I am working on a proper
      fix for this that will toggle the flag appropriately, but it is more
      challenging than I anticipated and I am afraid that this patch will
      not be completed before the merge window closes, therefore this easier
      fix for now. This fix has a negative performance impact in the range
      of 0% to 4%. Towards the higher end of the scale if you have driver
      and application on the same core and issue a lot of packets, and
      towards no negative impact if you use two cores, lower transmission
      speeds and/or a workload that also receives packets.
      
      Signed-off-by: default avatarMagnus Karlsson <magnus.karlsson@intel.com>
      Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
      Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
      0843aa8f
    • Magnus Karlsson's avatar
      i40e: need_wakeup flag might not be set for Tx · 70563957
      Magnus Karlsson authored
      
      
      The need_wakeup flag for Tx might not be set for AF_XDP sockets that
      are only used to send packets. This happens if there is at least one
      outstanding packet that has not been completed by the hardware and we
      get that corresponding completion (which will not generate an
      interrupt since interrupts are disabled in the napi poll loop) between
      the time we stopped processing the Tx completions and interrupts are
      enabled again. In this case, the need_wakeup flag will have been
      cleared at the end of the Tx completion processing as we believe we
      will get an interrupt from the outstanding completion at a later point
      in time. But if this completion interrupt occurs before interrupts
      are enable, we lose it and should at that point really have set the
      need_wakeup flag since there are no more outstanding completions that
      can generate an interrupt to continue the processing. When this
      happens, user space will see a Tx queue need_wakeup of 0 and skip
      issuing a syscall, which means will never get into the Tx processing
      again and we have a deadlock.
      
      This patch introduces a quick fix for this issue by just setting the
      need_wakeup flag for Tx to 1 all the time. I am working on a proper
      fix for this that will toggle the flag appropriately, but it is more
      challenging than I anticipated and I am afraid that this patch will
      not be completed before the merge window closes, therefore this easier
      fix for now. This fix has a negative performance impact in the range
      of 0% to 4%. Towards the higher end of the scale if you have driver
      and application on the same core and issue a lot of packets, and
      towards no negative impact if you use two cores, lower transmission
      speeds and/or a workload that also receives packets.
      
      Signed-off-by: default avatarMagnus Karlsson <magnus.karlsson@intel.com>
      Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
      Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
      70563957
    • Jacob Keller's avatar
      igb/igc: use ktime accessors for skb->tstamp · 6acab13b
      Jacob Keller authored
      
      
      When implementing launch time support in the igb and igc drivers, the
      skb->tstamp value is assumed to be a s64, but it's declared as a ktime_t
      value.
      
      Although ktime_t is typedef'd to s64 it wasn't always, and the kernel
      provides accessors for ktime_t values.
      
      Use the ktime_to_timespec64 and ktime_set accessors instead of directly
      assuming that the variable is always an s64.
      
      This improves portability if the code is ever moved to another kernel
      version, or if the definition of ktime_t ever changes again in the
      future.
      
      Signed-off-by: default avatarJacob Keller <jacob.e.keller@intel.com>
      Acked-by: default avatarVinicius Costa Gomes <vinicius.gomes@intel.com>
      Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
      6acab13b
    • Arkadiusz Kubalewski's avatar
      i40e: Fix for ethtool -m issue on X722 NIC · 4c9da6f2
      Arkadiusz Kubalewski authored
      
      
      This patch contains fix for a problem with command:
      'ethtool -m <dev>'
      which breaks functionality of:
      'ethtool <dev>'
      when called on X722 NIC
      
      Disallowed update of link phy_types on X722 NIC
      Currently correct value cannot be obtained from FW
      Previously wrong value returned by FW was used and was
      a root cause for incorrect output of 'ethtool <dev>' command
      
      Signed-off-by: default avatarArkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
      Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
      Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
      4c9da6f2
    • Nicholas Nunley's avatar
      iavf: initialize ITRN registers with correct values · 4eda4e00
      Nicholas Nunley authored
      Since commit 92418fb1
      
       ("i40e/i40evf: Use usec value instead of reg
      value for ITR defines") the driver tracks the interrupt throttling
      intervals in single usec units, although the actual ITRN registers are
      programmed in 2 usec units. Most register programming flows in the driver
      correctly handle the conversion, although it is currently not applied when
      the registers are initialized to their default values. Most of the time
      this doesn't present a problem since the default values are usually
      immediately overwritten through the standard adaptive throttling mechanism,
      or updated manually by the user, but if adaptive throttling is disabled and
      the interval values are left alone then the incorrect value will persist.
      
      Since the intended default interval of 50 usecs (vs. 100 usecs as
      programmed) performs better for most traffic workloads, this can lead to
      performance regressions.
      
      This patch adds the correct conversion when writing the initial values to
      the ITRN registers.
      
      Signed-off-by: default avatarNicholas Nunley <nicholas.d.nunley@intel.com>
      Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
      Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
      4eda4e00
    • Colin Ian King's avatar
      ice: fix potential infinite loop because loop counter being too small · 615457a2
      Colin Ian King authored
      Currently the for-loop counter i is a u8 however it is being checked
      against a maximum value hw->num_tx_sched_layers which is a u16. Hence
      there is a potential wrap-around of counter i back to zero if
      hw->num_tx_sched_layers is greater than 255.  Fix this by making i
      a u16.
      
      Addresses-Coverity: ("Infinite loop")
      Fixes: b36c598c
      
       ("ice: Updates to Tx scheduler code")
      Signed-off-by: default avatarColin Ian King <colin.king@canonical.com>
      Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
      Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
      615457a2
  6. 08 Nov, 2019 20 commits
    • Manish Chopra's avatar
      qede: fix NULL pointer deref in __qede_remove() · deabc871
      Manish Chopra authored
      
      
      While rebooting the system with SR-IOV vfs enabled leads
      to below crash due to recurrence of __qede_remove() on the VF
      devices (first from .shutdown() flow of the VF itself and
      another from PF's .shutdown() flow executing pci_disable_sriov())
      
      This patch adds a safeguard in __qede_remove() flow to fix this,
      so that driver doesn't attempt to remove "already removed" devices.
      
      [  194.360134] BUG: unable to handle kernel NULL pointer dereference at 00000000000008dc
      [  194.360227] IP: [<ffffffffc03553c4>] __qede_remove+0x24/0x130 [qede]
      [  194.360304] PGD 0
      [  194.360325] Oops: 0000 [#1] SMP
      [  194.360360] Modules linked in: tcp_lp fuse tun bridge stp llc devlink bonding ip_set nfnetlink ib_isert iscsi_target_mod ib_srpt target_core_mod ib_srp scsi_transport_srp scsi_tgt ib_ipoib ib_umad rpcrdma sunrpc rdma_ucm ib_uverbs ib_iser rdma_cm iw_cm ib_cm libiscsi scsi_transport_iscsi dell_smbios iTCO_wdt iTCO_vendor_support dell_wmi_descriptor dcdbas vfat fat pcc_cpufreq skx_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd qedr ib_core pcspkr ses enclosure joydev ipmi_ssif sg i2c_i801 lpc_ich mei_me mei wmi ipmi_si ipmi_devintf ipmi_msghandler tpm_crb acpi_pad acpi_power_meter xfs libcrc32c sd_mod crc_t10dif crct10dif_generic crct10dif_pclmul crct10dif_common crc32c_intel mgag200
      [  194.361044]  qede i2c_algo_bit drm_kms_helper qed syscopyarea sysfillrect nvme sysimgblt fb_sys_fops ttm nvme_core mpt3sas crc8 ptp drm pps_core ahci raid_class scsi_transport_sas libahci libata drm_panel_orientation_quirks nfit libnvdimm dm_mirror dm_region_hash dm_log dm_mod [last unloaded: ip_tables]
      [  194.361297] CPU: 51 PID: 7996 Comm: reboot Kdump: loaded Not tainted 3.10.0-1062.el7.x86_64 #1
      [  194.361359] Hardware name: Dell Inc. PowerEdge MX840c/0740HW, BIOS 2.4.6 10/15/2019
      [  194.361412] task: ffff9cea9b360000 ti: ffff9ceabebdc000 task.ti: ffff9ceabebdc000
      [  194.361463] RIP: 0010:[<ffffffffc03553c4>]  [<ffffffffc03553c4>] __qede_remove+0x24/0x130 [qede]
      [  194.361534] RSP: 0018:ffff9ceabebdfac0  EFLAGS: 00010282
      [  194.361570] RAX: 0000000000000000 RBX: ffff9cd013846098 RCX: 0000000000000000
      [  194.361621] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9cd013846098
      [  194.361668] RBP: ffff9ceabebdfae8 R08: 0000000000000000 R09: 0000000000000000
      [  194.361715] R10: 00000000bfe14201 R11: ffff9ceabfe141e0 R12: 0000000000000000
      [  194.361762] R13: ffff9cd013846098 R14: 0000000000000000 R15: ffff9ceab5e48000
      [  194.361810] FS:  00007f799c02d880(0000) GS:ffff9ceacb0c0000(0000) knlGS:0000000000000000
      [  194.361865] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      [  194.361903] CR2: 00000000000008dc CR3: 0000001bdac76000 CR4: 00000000007607e0
      [  194.361953] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
      [  194.362002] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
      [  194.362051] PKRU: 55555554
      [  194.362073] Call Trace:
      [  194.362109]  [<ffffffffc0355500>] qede_remove+0x10/0x20 [qede]
      [  194.362180]  [<ffffffffb97d0f3e>] pci_device_remove+0x3e/0xc0
      [  194.362240]  [<ffffffffb98b3c52>] __device_release_driver+0x82/0xf0
      [  194.362285]  [<ffffffffb98b3ce3>] device_release_driver+0x23/0x30
      [  194.362343]  [<ffffffffb97c86d4>] pci_stop_bus_device+0x84/0xa0
      [  194.362388]  [<ffffffffb97c87e2>] pci_stop_and_remove_bus_device+0x12/0x20
      [  194.362450]  [<ffffffffb97f153f>] pci_iov_remove_virtfn+0xaf/0x160
      [  194.362496]  [<ffffffffb97f1aec>] sriov_disable+0x3c/0xf0
      [  194.362534]  [<ffffffffb97f1bc3>] pci_disable_sriov+0x23/0x30
      [  194.362599]  [<ffffffffc02f83c3>] qed_sriov_disable+0x5e3/0x650 [qed]
      [  194.362658]  [<ffffffffb9622df6>] ? kfree+0x106/0x140
      [  194.362709]  [<ffffffffc02cc0c0>] ? qed_free_stream_mem+0x70/0x90 [qed]
      [  194.362754]  [<ffffffffb9622df6>] ? kfree+0x106/0x140
      [  194.362803]  [<ffffffffc02cd659>] qed_slowpath_stop+0x1a9/0x1d0 [qed]
      [  194.362854]  [<ffffffffc035544e>] __qede_remove+0xae/0x130 [qede]
      [  194.362904]  [<ffffffffc03554e0>] qede_shutdown+0x10/0x20 [qede]
      [  194.362956]  [<ffffffffb97cf90a>] pci_device_shutdown+0x3a/0x60
      [  194.363010]  [<ffffffffb98b180b>] device_shutdown+0xfb/0x1f0
      [  194.363066]  [<ffffffffb94b66c6>] kernel_restart_prepare+0x36/0x40
      [  194.363107]  [<ffffffffb94b66e2>] kernel_restart+0x12/0x60
      [  194.363146]  [<ffffffffb94b6959>] SYSC_reboot+0x229/0x260
      [  194.363196]  [<ffffffffb95f200d>] ? handle_mm_fault+0x39d/0x9b0
      [  194.363253]  [<ffffffffb942b621>] ? __switch_to+0x151/0x580
      [  194.363304]  [<ffffffffb9b7ec28>] ? __schedule+0x448/0x9c0
      [  194.363343]  [<ffffffffb94b69fe>] SyS_reboot+0xe/0x10
      [  194.363387]  [<ffffffffb9b8bede>] system_call_fastpath+0x25/0x2a
      [  194.363430] Code: f9 e9 37 ff ff ff 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 4c 8d af 98 00 00 00 41 54 4c 89 ef 41 89 f4 53 e8 4c e4 55 f9 <80> b8 dc 08 00 00 01 48 89 c3 4c 8d b8 c0 08 00 00 4c 8b b0 c0
      [  194.363712] RIP  [<ffffffffc03553c4>] __qede_remove+0x24/0x130 [qede]
      [  194.363764]  RSP <ffff9ceabebdfac0>
      [  194.363791] CR2: 00000000000008dc
      
      Signed-off-by: default avatarManish Chopra <manishc@marvell.com>
      Signed-off-by: default avatarAriel Elior <aelior@marvell.com>
      Signed-off-by: default avatarSudarsana Kalluru <skalluru@marvell.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      deabc871
    • Eric Dumazet's avatar
      net: fix data-race in neigh_event_send() · 1b53d644
      Eric Dumazet authored
      
      
      KCSAN reported the following data-race [1]
      
      The fix will also prevent the compiler from optimizing out
      the condition.
      
      [1]
      
      BUG: KCSAN: data-race in neigh_resolve_output / neigh_resolve_output
      
      write to 0xffff8880a41dba78 of 8 bytes by interrupt on cpu 1:
       neigh_event_send include/net/neighbour.h:443 [inline]
       neigh_resolve_output+0x78/0x480 net/core/neighbour.c:1474
       neigh_output include/net/neighbour.h:511 [inline]
       ip_finish_output2+0x4af/0xe40 net/ipv4/ip_output.c:228
       __ip_finish_output net/ipv4/ip_output.c:308 [inline]
       __ip_finish_output+0x23a/0x490 net/ipv4/ip_output.c:290
       ip_finish_output+0x41/0x160 net/ipv4/ip_output.c:318
       NF_HOOK_COND include/linux/netfilter.h:294 [inline]
       ip_output+0xdf/0x210 net/ipv4/ip_output.c:432
       dst_output include/net/dst.h:436 [inline]
       ip_local_out+0x74/0x90 net/ipv4/ip_output.c:125
       __ip_queue_xmit+0x3a8/0xa40 net/ipv4/ip_output.c:532
       ip_queue_xmit+0x45/0x60 include/net/ip.h:237
       __tcp_transmit_skb+0xe81/0x1d60 net/ipv4/tcp_output.c:1169
       tcp_transmit_skb net/ipv4/tcp_output.c:1185 [inline]
       __tcp_retransmit_skb+0x4bd/0x15f0 net/ipv4/tcp_output.c:2976
       tcp_retransmit_skb+0x36/0x1a0 net/ipv4/tcp_output.c:2999
       tcp_retransmit_timer+0x719/0x16d0 net/ipv4/tcp_timer.c:515
       tcp_write_timer_handler+0x42d/0x510 net/ipv4/tcp_timer.c:598
       tcp_write_timer+0xd1/0xf0 net/ipv4/tcp_timer.c:618
      
      read to 0xffff8880a41dba78 of 8 bytes by interrupt on cpu 0:
       neigh_event_send include/net/neighbour.h:442 [inline]
       neigh_resolve_output+0x57/0x480 net/core/neighbour.c:1474
       neigh_output include/net/neighbour.h:511 [inline]
       ip_finish_output2+0x4af/0xe40 net/ipv4/ip_output.c:228
       __ip_finish_output net/ipv4/ip_output.c:308 [inline]
       __ip_finish_output+0x23a/0x490 net/ipv4/ip_output.c:290
       ip_finish_output+0x41/0x160 net/ipv4/ip_output.c:318
       NF_HOOK_COND include/linux/netfilter.h:294 [inline]
       ip_output+0xdf/0x210 net/ipv4/ip_output.c:432
       dst_output include/net/dst.h:436 [inline]
       ip_local_out+0x74/0x90 net/ipv4/ip_output.c:125
       __ip_queue_xmit+0x3a8/0xa40 net/ipv4/ip_output.c:532
       ip_queue_xmit+0x45/0x60 include/net/ip.h:237
       __tcp_transmit_skb+0xe81/0x1d60 net/ipv4/tcp_output.c:1169
       tcp_transmit_skb net/ipv4/tcp_output.c:1185 [inline]
       __tcp_retransmit_skb+0x4bd/0x15f0 net/ipv4/tcp_output.c:2976
       tcp_retransmit_skb+0x36/0x1a0 net/ipv4/tcp_output.c:2999
       tcp_retransmit_timer+0x719/0x16d0 net/ipv4/tcp_timer.c:515
       tcp_write_timer_handler+0x42d/0x510 net/ipv4/tcp_timer.c:598
      
      Reported by Kernel Concurrency Sanitizer on:
      CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc3+ #0
      Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
      
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Reported-by: default avatarsyzbot <syzkaller@googlegroups.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      1b53d644
    • Linus Torvalds's avatar
      Merge tag 'pwm/for-5.4-rc7' of... · abf6c397
      Linus Torvalds authored
      Merge tag 'pwm/for-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
      
      Pull pwm fix from Thierry Reding:
       "One more fix to keep a reference to the driver's module as long as
        there are users of the PWM exposed by the driver"
      
      * tag 'pwm/for-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
        pwm: bcm-iproc: Prevent unloading the driver module while in use
      abf6c397
    • Tejun Heo's avatar
      cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead · 65de03e2
      Tejun Heo authored
      cgroup writeback tries to refresh the associated wb immediately if the
      current wb is dead.  This is to avoid keeping issuing IOs on the stale
      wb after memcg - blkcg association has changed (ie. when blkcg got
      disabled / enabled higher up in the hierarchy).
      
      Unfortunately, the logic gets triggered spuriously on inodes which are
      associated with dead cgroups.  When the logic is triggered on dead
      cgroups, the attempt fails only after doing quite a bit of work
      allocating and initializing a new wb.
      
      While c3aab9a0 ("mm/filemap.c: don't initiate writeback if mapping
      has no dirty pages") alleviated the issue significantly as it now only
      triggers when the inode has dirty pages.  However, the condition can
      still be triggered before the inode is switched to a different cgroup
      and the logic simply doesn't make sense.
      
      Skip the immediate switching if the associated memcg is dying.
      
      This is a simplified version of the following two patches:
      
       * https://lore.kernel.org/linux-mm/20190513183053.GA73423@dennisz-mbp/
       * http://lkml.kernel.org/r/156355839560.2063.5265687291430814589.stgit@buzz
      
      Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
      Fixes: e8a7abf5
      
       ("writeback: disassociate inodes from dying bdi_writebacks")
      Acked-by: default avatarDennis Zhou <dennis@kernel.org>
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      65de03e2
    • Linus Torvalds's avatar
      Merge tag 'ceph-for-5.4-rc7' of git://github.com/ceph/ceph-client · 0689acfa
      Linus Torvalds authored
      Pull ceph fixes from Ilya Dryomov:
       "Some late-breaking dentry handling fixes from Al and Jeff, a patch to
        further restrict copy_file_range() to avoid potential data corruption
        from Luis and a fix for !CONFIG_CEPH_FSCACHE kernels.
      
        Everything but the fscache fix is marked for stable"
      
      * tag 'ceph-for-5.4-rc7' of git://github.com/ceph/ceph-client:
        ceph: return -EINVAL if given fsc mount option on kernel w/o support
        ceph: don't allow copy_file_range when stripe_count != 1
        ceph: don't try to handle hashed dentries in non-O_CREAT atomic_open
        ceph: add missing check in d_revalidate snapdir handling
        ceph: fix RCU case handling in ceph_d_revalidate()
        ceph: fix use-after-free in __ceph_remove_cap()
      0689acfa
    • Stefano Garzarella's avatar
      vsock/virtio: fix sock refcnt holding during the shutdown · ad8a7220
      Stefano Garzarella authored
      The "42f5cda5" commit rightly set SOCK_DONE on peer shutdown,
      but there is an issue if we receive the SHUTDOWN(RDWR) while the
      virtio_transport_close_timeout() is scheduled.
      In this case, when the timeout fires, the SOCK_DONE is already
      set and the virtio_transport_close_timeout() will not call
      virtio_transport_reset() and virtio_transport_do_close().
      This causes that both sockets remain open and will never be released,
      preventing the unloading of [virtio|vhost]_transport modules.
      
      This patch fixes this issue, calling virtio_transport_reset() and
      virtio_transport_do_close() when we receive the SHUTDOWN(RDWR)
      and there is nothing left to read.
      
      Fixes: 42f5cda5
      
       ("vsock/virtio: set SOCK_DONE on peer shutdown")
      Cc: Stephen Barber <smbarber@chromium.org>
      Signed-off-by: default avatarStefano Garzarella <sgarzare@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ad8a7220
    • David S. Miller's avatar
      Merge tag 'mac80211-for-net-2019-11-08' of... · b05f5b4a
      David S. Miller authored
      Merge tag 'mac80211-for-net-2019-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
      
      
      
      Johannes Berg says:
      
      ====================
      Three small fixes:
       * we hit a failure path bug related to
         ieee80211_txq_setup_flows()
       * also use kvmalloc() to make that less likely
       * fix a timing value shortly after boot (during
         INITIAL_JIFFIES)
      ====================
      
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b05f5b4a
    • Alexander Sverdlin's avatar
      net: ethernet: octeon_mgmt: Account for second possible VLAN header · e4dd5608
      Alexander Sverdlin authored
      Octeon's input ring-buffer entry has 14 bits-wide size field, so to account
      for second possible VLAN header max_mtu must be further reduced.
      
      Fixes: 109cc165
      
       ("ethernet/cavium: use core min/max MTU checking")
      Signed-off-by: default avatarAlexander Sverdlin <alexander.sverdlin@nokia.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e4dd5608
    • Linus Torvalds's avatar
      Merge tag 'modules-for-v5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux · 6737e763
      Linus Torvalds authored
      Pull modules fix from Jessica Yu:
       "Fix `make nsdeps` for modules composed of multiple source files.
      
        Since $mod_source_files was not in quotes in the call to
        generate_deps_for_ns(), not all the source files for a module were
        being passed to spatch"
      
      * tag 'modules-for-v5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
        scripts/nsdeps: make sure to pass all module source files to spatch
      6737e763
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 9e8ed26e
      Linus Torvalds authored
      Pull arm64 fix from Will Deacon:
       "Fix pte_same() to avoid getting stuck on write fault.
      
        This single arm64 fix is a revert of 747a70e6 ("arm64: Fix
        copy-on-write referencing in HugeTLB"), not because that patch was
        wrong, but because it was broken by aa57157b ("arm64: Ensure
        VM_WRITE|VM_SHARED ptes are clean by default") which we merged in
        -rc6.
      
        We spotted the issue in Android (AOSP), where one of the JIT threads
        gets stuck on a write fault during boot because the faulting pte is
        marked as PTE_DIRTY | PTE_WRITE | PTE_RDONLY and the fault handler
        decides that there's nothing to do thanks to pte_same() masking out
        PTE_RDONLY.
      
        Thanks to John Stultz for reporting this and testing this so quickly,
        and to Steve Capper for confirming that the HugeTLB tests continue to
        pass"
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: Do not mask out PTE_RDONLY in pte_same()
      9e8ed26e
    • Uwe Kleine-König's avatar
      pwm: bcm-iproc: Prevent unloading the driver module while in use · 24906a41
      Uwe Kleine-König authored
      The owner member of struct pwm_ops must be set to THIS_MODULE to
      increase the reference count of the module such that the module cannot
      be removed while its code is in use.
      
      Fixes: daa5abc4
      
       ("pwm: Add support for Broadcom iProc PWM controller")
      Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
      24906a41
    • Linus Torvalds's avatar
      Merge tag 'xarray-5.4' of git://git.infradead.org/users/willy/linux-dax · 410ef736
      Linus Torvalds authored
      Pull XArray fixes from Matthew Wilcox:
       "These all fix various bugs, some of which people have tripped over and
        some of which have been caught by automatic tools"
      
      * tag 'xarray-5.4' of git://git.infradead.org/users/willy/linux-dax:
        idr: Fix idr_alloc_u32 on 32-bit systems
        idr: Fix integer overflow in idr_for_each_entry
        radix tree: Remove radix_tree_iter_find
        idr: Fix idr_get_next_ul race with idr_remove
        XArray: Fix xas_next() with a single entry at 0
      410ef736
    • Linus Torvalds's avatar
      Merge tag 'pm-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 4d8b3262
      Linus Torvalds authored
      Pull power management fix from Rafael Wysocki:
       "Fix an 'unchecked MSR access' warning in the intel_pstate cpufreq
        driver (Srinivas Pandruvada)"
      
      * tag 'pm-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpufreq: intel_pstate: Fix invalid EPB setting
      4d8b3262
    • Linus Torvalds's avatar
      Merge tag 'sound-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 8ac2a114
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "It became a bit largish, but all small and good for 5.4:
      
         - A regression fix of ALSA timer code bug that sneaked in by a recent
           cleanup; never trust innocent-looking guys...
      
         - Fix for compress API max size check signedness
      
         - Fixes in HD-audio: CA0132 work stall, Intel Tigerlake HDMI
      
         - A few fixes for SOF: memory leak, sanity-check and build fixes
      
         - A collection of device-specific fixes: firewire, rockchip, ASoC
           HDMI, rsnd, ASoC HDA, stm32, TI, kirkwood, msm, max98373"
      
      * tag 'sound-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: timer: Fix incorrectly assigned timer instance
        ASoC: SOF: topology: Fix bytes control size checks
        ALSA: hda: hdmi - add Tigerlake support
        ASoC: max98373: replace gpio_request with devm_gpio_request
        ASoC: stm32: sai: add restriction on mmap support
        ALSA: hda/ca0132 - Fix possible workqueue stall
        ASoC: hdac_hda: fix race in device removal
        ALSA: bebob: fix to detect configured source of sampling clock for Focusrite Saffire Pro i/o series
        ASoC: rockchip: rockchip_max98090: Enable SHDN to fix headset detection
        ASoC: ti: sdma-pcm: Add back the flags parameter for non standard dma names
        ASoC: SOF: ipc: Fix memory leak in sof_set_get_large_ctrl_data
        ASoC: SOF: Fix memory leak in sof_dfsentry_write
        ASoC: SOF: Intel: hda-stream: fix the CONFIG_ prefix missing
        ASoC: kirkwood: fix device remove ordering
        ASoC: rsnd: dma: fix SSI9 4/5/6/7 busif dma address
        ASoC: hdmi-codec: drop mutex locking again
        ASoC: kirkwood: fix external clock probe defer
        ASoC: compress: fix unsigned integer overflow check
        ASoC: msm8916-wcd-analog: Fix RX1 selection in RDAC2 MUX
      8ac2a114
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-2019-11-08' of git://anongit.freedesktop.org/drm/drm · efc61f7c
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Weekly fixes for drm: amdgpu has a few but they are pretty scattered
        fixes, the fbdev one is a build regression fix that we didn't want to
        risk leaving out, otherwise a couple of i915, one radeon and a core
        atomic fix.
      
        core:
         - add missing documentation for GEM shmem madvise helpers
         - Fix for a state dereference in atomic self-refresh helpers
      
        fbdev:
         - One compilation fix for c2p fbdev helpers
      
        amdgpu:
         - Fix navi14 display issue root cause and revert workaround
         - GPU reset scheduler interaction fix
         - Fix fan boost on multi-GPU
         - Gfx10 and sdma5 fixes for navi
         - GFXOFF fix for renoir
         - Add navi14 PCI ID
         - GPUVM fix for arcturus
      
        radeon:
         - Port an SI power fix from amdgpu
      
        i915:
         - Fix HPD poll to avoid kworker consuming a lot of cpu cycles.
         - Do not use TBT type for non Type-C ports"
      
      * tag 'drm-fixes-2019-11-08' of git://anongit.freedesktop.org/drm/drm:
        drm/radeon: fix si_enable_smc_cac() failed issue
        drm/amdgpu/renoir: move gfxoff handling into gfx9 module
        drm/amdgpu: add warning for GRBM 1-cycle delay issue in gfx9
        drm/amdgpu: add dummy read by engines for some GCVM status registers in gfx10
        drm/amdgpu: register gpu instance before fan boost feature enablment
        drm/amd/swSMU: fix smu workload bit map error
        drm/shmem: Add docbook comments for drm_gem_shmem_object madvise fields
        drm/amdgpu: add navi14 PCI ID
        Revert "drm/amd/display: setting the DIG_MODE to the correct value."
        drm/amd/display: Add ENGINE_ID_DIGD condition check for Navi14
        drm/amdgpu: dont schedule jobs while in reset
        drm/amdgpu/arcturus: properly set BANK_SELECT and FRAGMENT_SIZE
        drm/atomic: fix self-refresh helpers crtc state dereference
        drm/i915/dp: Do not switch aux to TBT mode for non-TC ports
        drm/i915: Avoid HPD poll detect triggering a new detect cycle
        fbdev: c2p: Fix link failure on non-inlining
      efc61f7c
    • Linus Torvalds's avatar
      Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux · d988f887
      Linus Torvalds authored
      Pull clk fixes from Stephen Boyd:
       "Fixes for various clk driver issues that happened because of code we
        merged this merge window.
      
        The Amlogic driver was missing some flags causing rates to be rounded
        improperly or clk_set_rate() to fail. The Samsung driver wasn't
        freeing everything on error paths and improperly saving/restoring PLL
        state across suspend/resume. The at91 driver was calling msleep() too
        early when scheduling hadn't started, so we put in place a quick
        solution until we can handle this sort of problem in the core
        framework.
      
        There were also problems with the Allwinner driver and operator
        precedence being incorrect causing subtle bugs. Finally, the TI driver
        was duplicating aliases and not delaying long enough leading to some
        unexpected timeouts"
      
      * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
        clk: ti: clkctrl: Fix failed to enable error with double udelay timeout
        clk: ti: dra7-atl-clock: Remove ti_clk_add_alias call
        clk: sunxi-ng: a80: fix the zero'ing of bits 16 and 18
        clk: sunxi: Fix operator precedence in sunxi_divs_clk_setup
        clk: ast2600: Fix enabling of clocks
        clk: at91: avoid sleeping early
        clk: imx8m: Use SYS_PLL1_800M as intermediate parent of CLK_ARM
        clk: samsung: exynos5420: Preserve PLL configuration during suspend/resume
        clk: samsung: exynos542x: Move G3D subsystem clocks to its sub-CMU
        clk: samsung: exynos5433: Fix error paths
        clk: at91: sam9x60: fix programmable clock
        clk: meson: g12a: set CLK_MUX_ROUND_CLOSEST on the cpu clock muxes
        clk: meson: g12a: fix cpu clock rate setting
        clk: meson: gxbb: let sar_adc_clk_div set the parent clock rate
      d988f887
    • Dan Carpenter's avatar
      block: drbd: remove a stray unlock in __drbd_send_protocol() · 8e9c5230
      Dan Carpenter authored
      There are two callers of this function and they both unlock the mutex so
      this ends up being a double unlock.
      
      Fixes: 44ed167d
      
       ("drbd: rcu_read_lock() and rcu_dereference() for tconn->net_conf")
      Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      8e9c5230
    • Srinivas Pandruvada's avatar
      cpufreq: intel_pstate: Fix invalid EPB setting · c31432fa
      Srinivas Pandruvada authored
      The max value of EPB can only be 0x0F. Attempting to set more than that
      triggers an "unchecked MSR access error" warning which happens in
      intel_pstate_hwp_force_min_perf() called via cpufreq stop_cpu().
      
      However, it is not even necessary to touch the EPB from intel_pstate,
      because it is restored on every CPU online by the intel_epb.c code,
      so let that code do the right thing and drop the redundant (and
      incorrect) EPB update from intel_pstate.
      
      Fixes: af3b7379
      
       ("cpufreq: intel_pstate: Force HWP min perf before offline")
      Reported-by: default avatarQian Cai <cai@lca.pw>
      Cc: 5.2+ <stable@vger.kernel.org> # 5.2+
      Signed-off-by: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
      [ rjw: Changelog ]
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      c31432fa
    • Ahmed Zaki's avatar
      mac80211: fix station inactive_time shortly after boot · 285531f9
      Ahmed Zaki authored
      
      
      In the first 5 minutes after boot (time of INITIAL_JIFFIES),
      ieee80211_sta_last_active() returns zero if last_ack is zero. This
      leads to "inactive time" showing jiffies_to_msecs(jiffies).
      
       # iw wlan0 station get fc:ec:da:64:a6:dd
       Station fc:ec:da:64:a6:dd (on wlan0)
      	inactive time:	4294894049 ms
      	.
      	.
      	connected time:	70 seconds
      
      Fix by returning last_rx if last_ack == 0.
      
      Signed-off-by: default avatarAhmed Zaki <anzaki@gmail.com>
      Link: https://lore.kernel.org/r/20191031121243.27694-1-anzaki@gmail.com
      
      
      Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
      285531f9
    • Toke Høiland-Jørgensen's avatar
      net/fq_impl: Switch to kvmalloc() for memory allocation · 71e67c3b
      Toke Høiland-Jørgensen authored
      The FQ implementation used by mac80211 allocates memory using kmalloc(),
      which can fail; and Johannes reported that this actually happens in
      practice.
      
      To avoid this, switch the allocation to kvmalloc() instead; this also
      brings fq_impl in line with all the FQ qdiscs.
      
      Fixes: 557fc4a0
      
       ("fq: add fair queuing framework")
      Reported-by: default avatarJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: default avatarToke Høiland-Jørgensen <toke@redhat.com>
      Link: https://lore.kernel.org/r/20191105155750.547379-1-toke@redhat.com
      
      
      Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
      71e67c3b