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From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
	Ian Rogers <irogers@google.com>,
	Kan Liang <kan.liang@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-perf-users@vger.kernel.org
Subject: [PATCHSET 0/9] Sync tools headers with the kernel source
Date: Mon,  8 Apr 2024 11:55:11 -0700	[thread overview]
Message-ID: <20240408185520.1550865-1-namhyung@kernel.org> (raw)

Hello,

I'm gonna carry these changes on the perf tools tree.  I'll update the
vhost.h once it lands on the mainline.

This is the full explanation from Arnaldo:

There used to be no copies, with tools/ code using kernel headers
directly. From time to time tools/perf/ broke due to legitimate kernel
hacking. At some point Linus complained about such direct usage. Then we
adopted the current model.

The way these headers are used in perf are not restricted to just
including them to compile something.

There are sometimes used in scripts that convert defines into string
tables, etc, so some change may break one of these scripts, or new MSRs
may use some different #define pattern, etc.

E.g.:

  $ ls -1 tools/perf/trace/beauty/*.sh | head -5
  tools/perf/trace/beauty/arch_errno_names.sh
  tools/perf/trace/beauty/drm_ioctl.sh
  tools/perf/trace/beauty/fadvise.sh
  tools/perf/trace/beauty/fsconfig.sh
  tools/perf/trace/beauty/fsmount.sh
  $
  $ tools/perf/trace/beauty/fadvise.sh
  static const char *fadvise_advices[] = {
        [0] = "NORMAL",
        [1] = "RANDOM",
        [2] = "SEQUENTIAL",
        [3] = "WILLNEED",
        [4] = "DONTNEED",
        [5] = "NOREUSE",
  };
  $

The tools/perf/check-headers.sh script, part of the tools/ build
process, points out changes in the original files.

So its important not to touch the copies in tools/ when doing changes in
the original kernel headers, that will be done later, when
check-headers.sh inform about the change to the perf tools hackers.


Thanks,
Namhyung


Namhyung Kim (9):
  tools/include: Sync uapi/drm/i915_drm.h with the kernel sources
  tools/include: Sync uapi/linux/fs.h with the kernel sources
  tools/include: Sync uapi/linux/kvm.h and asm/kvm.h with the kernel
    sources
  tools/include: Sync uapi/sound/asound.h with the kernel sources
  tools/include: Sync x86 CPU feature headers with the kernel sources
  tools/include: Sync x86 asm/irq_vectors.h with the kernel sources
  tools/include: Sync x86 asm/msr-index.h with the kernel sources
  tools/include: Sync asm-generic/bitops/fls.h with the kernel sources
  tools/include: Sync arm64 asm/cputype.h with the kernel sources

 tools/arch/arm64/include/asm/cputype.h        |   4 +
 tools/arch/arm64/include/uapi/asm/kvm.h       |  15 +-
 tools/arch/powerpc/include/uapi/asm/kvm.h     |  45 +-
 tools/arch/s390/include/uapi/asm/kvm.h        | 315 +++++++-
 tools/arch/x86/include/asm/cpufeatures.h      |  17 +-
 .../arch/x86/include/asm/disabled-features.h  |  11 +-
 tools/arch/x86/include/asm/irq_vectors.h      |   2 -
 tools/arch/x86/include/asm/msr-index.h        |  74 +-
 .../arch/x86/include/asm/required-features.h  |   3 +-
 tools/arch/x86/include/uapi/asm/kvm.h         | 308 +++++++-
 tools/include/asm-generic/bitops/__fls.h      |   8 +-
 tools/include/asm-generic/bitops/fls.h        |   8 +-
 tools/include/uapi/drm/i915_drm.h             |  16 +
 tools/include/uapi/linux/fs.h                 |  30 +-
 tools/include/uapi/linux/kvm.h                | 689 +-----------------
 tools/include/uapi/sound/asound.h             |   4 +-
 16 files changed, 809 insertions(+), 740 deletions(-)


base-commit: 25e973a0e077da585e472b4cadb1d2f4c1113285
-- 
2.44.0.478.gd926399ef9-goog


             reply	other threads:[~2024-04-08 18:55 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-08 18:55 Namhyung Kim [this message]
2024-04-08 18:55 ` [PATCH 1/9] tools/include: Sync uapi/drm/i915_drm.h with the kernel sources Namhyung Kim
2024-04-09  7:26   ` Jani Nikula
2024-04-09  7:37     ` Ingo Molnar
2024-04-09 10:14       ` Jani Nikula
2024-04-09 15:58         ` Namhyung Kim
2024-04-09 17:00           ` Arnaldo Carvalho de Melo
2024-04-08 18:55 ` [PATCH 2/9] tools/include: Sync uapi/linux/fs.h " Namhyung Kim
2024-04-09 10:04   ` Jan Kara
2024-04-09 10:10     ` Christian Brauner
2024-04-08 18:55 ` [PATCH 3/9] tools/include: Sync uapi/linux/kvm.h and asm/kvm.h " Namhyung Kim
2024-04-08 18:55 ` [PATCH 4/9] tools/include: Sync uapi/sound/asound.h " Namhyung Kim
2024-04-08 18:55 ` [PATCH 5/9] tools/include: Sync x86 CPU feature headers " Namhyung Kim
2024-04-08 18:55 ` [PATCH 6/9] tools/include: Sync x86 asm/irq_vectors.h " Namhyung Kim
2024-04-08 18:55 ` [PATCH 7/9] tools/include: Sync x86 asm/msr-index.h " Namhyung Kim
2024-04-08 18:55 ` [PATCH 8/9] tools/include: Sync asm-generic/bitops/fls.h " Namhyung Kim
2024-04-08 18:55 ` [PATCH 9/9] tools/include: Sync arm64 asm/cputype.h " Namhyung Kim
2024-04-08 19:13 ` [PATCHSET 0/9] Sync tools headers with the kernel source Arnaldo Carvalho de Melo
2024-04-09  7:40   ` Ingo Molnar
2024-04-09 13:58     ` Arnaldo Carvalho de Melo
2024-04-09 15:51       ` Namhyung Kim
2024-04-09  7:15 ` Geert Uytterhoeven
2024-04-09 13:47   ` Arnaldo Carvalho de Melo
2024-04-09 15:54     ` Namhyung Kim

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