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Message-ID: <20191203154051.2inrcde6frjkm3ph@wittgenstein>
Date:   Tue, 3 Dec 2019 16:40:52 +0100
From:   Christian Brauner <christian.brauner@...ntu.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Clark Williams <williams@...hat.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Adrian Reber <areber@...hat.com>
Subject: Re: [PATCH 18/23] tools headers UAPI: Sync sched.h with the kernel

On Tue, Dec 03, 2019 at 10:56:01AM -0300, Arnaldo Carvalho de Melo wrote:
> From: Arnaldo Carvalho de Melo <acme@...hat.com>
> 
> To get the changes in:
> 
>   0acefef58451 ("Merge tag 'threads-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux")
>   49cb2fc42ce4 ("fork: extend clone3() to support setting a PID")
>   fa729c4df558 ("clone3: validate stack arguments")
>   b612e5df4587 ("clone3: add CLONE_CLEAR_SIGHAND")
> 
> This file gets rebuilt, but no changes ensues:
> 
>    CC       /tmp/build/perf/trace/beauty/clone.o
> 
> This addresses this perf build warning:
> 
>   Warning: Kernel ABI header at 'tools/include/uapi/linux/sched.h' differs from latest version at 'include/uapi/linux/sched.h'
>   diff -u tools/include/uapi/linux/sched.h include/uapi/linux/sched.
> 
> The CLONE_CLEAR_SIGHAND one will be used in tools/perf/trace/beauty/clone.c
> in a followup patch to show that string when this bit is set in the
> syscall arg. Keeping a copy of this file allows us to build this in
> older systems and have the binary support printing that flag whenever
> that system gets its kernel updated to one where this feature is
> present.
> 
> Cc: Adrian Hunter <adrian.hunter@...el.com>
> Cc: Adrian Reber <areber@...hat.com>
> Cc: Christian Brauner <christian.brauner@...ntu.com>
> Cc: Jiri Olsa <jolsa@...nel.org>
> Cc: Namhyung Kim <namhyung@...nel.org>
> Link: https://lkml.kernel.org/n/tip-nprqsvvzbhzoy64cbvos6c5b@git.kernel.org
> Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>

Thanks!
Acked-by: Christian Brauner <christian.brauner@...ntu.com>

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