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    Merge tag 'trace-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · 58ca2415
    Linus Torvalds authored
    Pull tracing updates from Steven Rostedt:
    
     - simplify the Kconfig use of FTRACE and TRACE_IRQFLAGS_SUPPORT
    
     - bootconfig can now start histograms
    
     - bootconfig supports group/all enabling
    
     - histograms now can put values in linear size buckets
    
     - execnames can be passed to synthetic events
    
     - introduce "event probes" that attach to other events and can retrieve
       data from pointers of fields, or record fields as different types (a
       pointer to a string as a string instead of just a hex number)
    
     - various fixes and clean ups
    
    * tag 'trace-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (35 commits)
      tracing/doc: Fix table format in histogram code
      selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes
      selftests/ftrace: Add selftest for testing eprobe events on synthetic events
      selftests/ftrace: Add test case to test adding and removing of event probe
      selftests/ftrace: Fix requirement check of README file
      selftests/ftrace: Add clear_dynamic_events() to test cases
      tracing: Add a probe that attaches to trace events
      tracing/probes: Reject events which have the same name of existing one
      tracing/probes: Have process_fetch_insn() take a void * instead of pt_regs
      tracing/probe: Change traceprobe_set_print_fmt() to take a type
      tracing/probes: Use struct_size() instead of defining custom macros
      tracing/probes: Allow for dot delimiter as well as slash for system names
      tracing/probe: Have traceprobe_parse_probe_arg() take a const arg
      tracing: Have dynamic events have a ref counter
      tracing: Add DYNAMIC flag for dynamic events
      tracing: Replace deprecated CPU-hotplug functions.
      MAINTAINERS: Add an entry for os noise/latency
      tracepoint: Fix kerneldoc comments
      bootconfig/tracing/ktest: Update ktest example for boot-time tracing
      tools/bootconfig: Use per-group/all enable option in ftrace2bconf script
      ...
    58ca2415