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SubjectRe: linux-next: build failure after merge of the perf tree
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On 9/7/22 00:35, Stephen Rothwell wrote:
> Hi all,
>
> On Wed, 31 Aug 2022 08:34:52 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>>
>> After merging the perf tree, today's linux-next build (native perf)
>> failed like this:
>>
>> In file included from /usr/include/stdio.h:866,
>> from /home/sfr/next/next/tools/perf/util/branch.h:9,
>> from util/branch.c:2:
>> In function 'fprintf',
>> inlined from 'branch_type_stat_display' at util/branch.c:152:4:
>> /usr/include/powerpc64le-linux-gnu/bits/stdio2.h:105:10: error: '%8s' directive argument is null [-Werror=format-overflow=]
>> 105 | return __fprintf_chk (__stream, __USE_FORTIFY_LEVEL - 1, __fmt,
>> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> 106 | __va_arg_pack ());
>> | ~~~~~~~~~~~~~~~~~
>> cc1: all warnings being treated as errors
>>
>> Presumably caused by commit
>>
>> 9781e500dcb8 ("perf branch: Extend branch type classification")
>>
>> "native" here is PowerPC64 LE.
>> $ gcc --version
>> gcc (Debian 11.2.0-10) 11.2.0
>>
>> I have used the perf tree from next-20220830 for today.
>
> I am still seeing this build failure.

But did you apply the fix patch from Arnaldo that removes -Wno-format-overflow
compiler option for the file util/branch.c ?

https://lore.kernel.org/all/YxJBh3wvAGol+Ekq@kernel.org/

- Anshuman

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