linux-kernel - [for-next][PATCH 0/5] tracing: Add string_has

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Date:   Sat, 22 Dec 2018 11:20:07 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org
Cc:     Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Joe Perches <joe@...ches.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>, linux-sh@...r.kernel.org
Subject: [for-next][PATCH 0/5] tracing: Add string_has_prefix() and usages

I hope everyone is OK with these changes. I pushed to linux-next but I'm
willing to change them if there are still issues.

They ran through all my tests, althought zero-day-bot had a weird build
regression in sh, that looks totally unrelated:

 Regressions in current branch:

 arch/sh/kernel/dwarf.c:107:26: error: 'dwarf_frame_reg' defined but not used [-Werror=unused-function]
 arch/sh/kernel/dwarf.c:1209:0: error: unterminated argument list invoking macro "WARN_ON"
 arch/sh/kernel/dwarf.c:226:12: error: 'dwarf_read_encoded_value' defined but not used [-Werror=unused-function]
 arch/sh/kernel/dwarf.c:306:26: error: 'dwarf_lookup_cie' defined but not used [-Werror=unused-function]
 arch/sh/kernel/dwarf.c:38:27: error: 'dwarf_frame_cachep' defined but not used [-Werror=unused-variable]
 arch/sh/kernel/dwarf.c:399:12: error: 'dwarf_cfa_execute_insns' defined but not used [-Werror=unused-function]
 arch/sh/kernel/dwarf.c:41:27: error: 'dwarf_reg_cachep' defined but not used [-Werror=unused-variable]
 arch/sh/kernel/dwarf.c:580:22: error: unused variable 'frame' [-Werror=unused-variable]
 arch/sh/kernel/dwarf.c:581:20: error: unused variable 'cie' [-Werror=unused-variable]
 arch/sh/kernel/dwarf.c:582:20: error: unused variable 'fde' [-Werror=unused-variable]
 arch/sh/kernel/dwarf.c:583:20: error: unused variable 'reg' [-Werror=unused-variable]
 arch/sh/kernel/dwarf.c:584:16: error: unused variable 'addr' [-Werror=unused-variable]
 arch/sh/kernel/dwarf.c:622:3: error: expected ';' at end of input
 arch/sh/kernel/dwarf.c:622:3: error: expected declaration or statement at end of input
 arch/sh/kernel/dwarf.c:622:3: error: 'WARN_ON' undeclared (first use in this function); did you mean 'WMARK_LOW'?

Pushing to my for-next branch should kick off another run. Let's see
if it reports that again. Unless someone knows why that happened?

-- Steve

  git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
for-next

Head SHA1: 92b9de3e574bd874188a4e27a8830bb901a08ef8

Steven Rostedt (VMware) (5):
      string.h: Add str_has_prefix() helper function
      tracing: Use str_has_prefix() helper for histogram code
      tracing: Use str_has_prefix() instead of using fixed sizes
      tracing: Have the historgram use the result of str_has_prefix() for len of prefix
      tracing: Use the return of str_has_prefix() to remove open coded numbers

----
 include/linux/string.h           | 20 ++++++++++++++++++++
 kernel/trace/trace.c             |  8 +++++---
 kernel/trace/trace_events.c      |  2 +-
 kernel/trace/trace_events_hist.c | 35 ++++++++++++++++++-----------------
 kernel/trace/trace_probe.c       | 17 +++++++++--------
 kernel/trace/trace_stack.c       |  6 ++++--
 6 files changed, 57 insertions(+), 31 deletions(-)