From: Ingo Molnar <mi...@kernel.org>

Change this:

  Warning: arch/x86/include/asm/disabled-features.h differs from kernel
  Warning: arch/x86/include/asm/cpufeatures.h differs from kernel
  Warning: arch/powerpc/include/uapi/asm/kvm.h differs from kernel
  Warning: arch/s390/include/uapi/asm/kvm.h differs from kernel

  Warning: Kernel ABI header at 
'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 
'arch/x86/include/asm/disabled-features.h'
  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' 
differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
  Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/kvm.h' 
differs from latest version at 'arch/powerpc/include/uapi/asm/kvm.h'
  Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/kvm.h' 
differs from latest version at 'arch/s390/include/uapi/asm/kvm.h'

... to make it clearer what the warning is about, and to make it easier
to diff the two versions when syncing up the files.

Signed-off-by: Ingo Molnar <mi...@kernel.org>
Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: Alexander Shishkin <alexander.shish...@linux.intel.com>
Cc: Andi Kleen <a...@linux.intel.com>
Cc: David Ahern <dsah...@gmail.com>
Cc: David Carrillo-Cisneros <davi...@google.com>
Cc: Francis Deslauriers <francis.deslauri...@efficios.com>
Cc: Geneviève Bastien <gbast...@versatic.net>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Julien Desfossez <jdesfos...@efficios.com>
Cc: Martin Liška <mli...@suse.cz>
Cc: Mathieu Desnoyers <mathieu.desnoy...@efficios.com>
Cc: Milian Wolff <milian.wo...@kdab.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Paul Turner <p...@google.com>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Simon Que <s...@chromium.org>
Cc: Stephane Eranian <eran...@google.com>
Cc: Taeung Song <treeze.tae...@gmail.com>
Cc: Wang Nan <wangn...@huawei.com>
Link: http://lkml.kernel.org/r/20170730093747.qogjn3lp7ntwc...@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/check-headers.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index 9b6295809a3b..d87bc6af0ac2 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -47,7 +47,7 @@ check () {
   cmd="diff $opts ../$file ../../$file > /dev/null"
 
   test -f ../../$file &&
-  eval $cmd || echo "Warning: $file differs from kernel" >&2
+  eval $cmd || echo "Warning: Kernel ABI header at 'tools/$file' differs from 
latest version at '$file'" >&2
 }
 
 
-- 
2.9.4

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