linux-kernel - [GIT PULL] tracing/bootconfig: Fixes and changes to bootconfig before it goes live in a release

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Date:   Tue, 25 Feb 2020 19:19:27 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Tom Zanussi <zanussi@...nel.org>
Subject: [GIT PULL] tracing/bootconfig: Fixes and changes to bootconfig
 before it goes live in a release


Linus,

Tracing updates:

 Change in API of bootconfig (before it comes live in a release)
  - Have a magic value "BOOTCONFIG" in initrd to know a bootconfig exists
  - Set CONFIG_BOOT_CONFIG to 'n' by default
  - Show error if "bootconfig" on cmdline but not compiled in
  - Prevent redefining the same value
  - Have a way to append values
  - Added a SELECT BLK_DEV_INITRD to fix a build failure

 Synthetic event fixes:
  - Switch to raw_smp_processor_id() for recording CPU value in preempt
    section. (No care for what the value actually is)
  - Fix samples always recording u64 values
  - Fix endianess
  - Check number of values matches number of fields
  - Fix a printing bug

 Fix of trace_printk() breaking postponed start up tests

 Make a function static that is only used in a single file.


Please pull the latest trace-v5.6-rc2 tree, which can be found at:


  git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
trace-v5.6-rc2

Tag SHA1: b50d255b6c6f55384c40bbac65fd5d5d4529a8ba
Head SHA1: 2910b5aa6f545c044173a5cab3dbb7f43e23916d


Masami Hiramatsu (9):
      tracing: Clear trace_state when starting trace
      bootconfig: Set CONFIG_BOOT_CONFIG=n by default
      bootconfig: Add bootconfig magic word for indicating bootconfig explicitly
      tools/bootconfig: Remove unneeded error message silencer
      bootconfig: Reject subkey and value on same parent key
      bootconfig: Print array as multiple commands for legacy command line
      bootconfig: Prohibit re-defining value on same key
      bootconfig: Add append value operator support
      bootconfig: Fix CONFIG_BOOTTIME_TRACING dependency issue

Qiujun Huang (1):
      bootconfig: Mark boot_config_checksum() static

Steven Rostedt (VMware) (2):
      tracing: Have synthetic event test use raw_smp_processor_id()
      tracing: Disable trace_printk() on post poned tests

Tom Zanussi (4):
      tracing: Make sure synth_event_trace() example always uses u64
      tracing: Make synth_event trace functions endian-correct
      tracing: Check that number of vals matches number of synth event fields
      tracing: Fix number printing bug in print_synth_event()

----
 Documentation/admin-guide/bootconfig.rst     |  34 +++++++-
 include/linux/bootconfig.h                   |   3 +
 init/Kconfig                                 |   5 +-
 init/main.c                                  |  38 +++++----
 kernel/trace/Kconfig                         |   4 +-
 kernel/trace/synth_event_gen_test.c          |  44 +++++------
 kernel/trace/trace.c                         |   2 +
 kernel/trace/trace_events_hist.c             | 112 ++++++++++++++++++++++++---
 lib/bootconfig.c                             |  36 ++++++---
 tools/bootconfig/include/linux/printk.h      |   5 +-
 tools/bootconfig/main.c                      |  51 +++++++-----
 tools/bootconfig/samples/bad-mixed-kv1.bconf |   3 +
 tools/bootconfig/samples/bad-mixed-kv2.bconf |   3 +
 tools/bootconfig/samples/bad-samekey.bconf   |   6 ++
 tools/bootconfig/test-bootconfig.sh          |  18 ++++-
 15 files changed, 272 insertions(+), 92 deletions(-)
 create mode 100644 tools/bootconfig/samples/bad-mixed-kv1.bconf
 create mode 100644 tools/bootconfig/samples/bad-mixed-kv2.bconf
 create mode 100644 tools/bootconfig/samples/bad-samekey.bconf
---------------------------