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Subjectpmu-events/jevents.c:72:22: warning: no previous prototype for 'convert'
Hi Kajol,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 929ed21dfdb6ee94391db51c9eedb63314ef6847
commit: 560ccbc4a52c567096023e0c6a9b920048e59017 perf jevents: Add support for parsing perchip/percore events
date: 2 years, 9 months ago
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce:
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=560ccbc4a52c567096023e0c6a9b920048e59017
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 560ccbc4a52c567096023e0c6a9b920048e59017
make O=/tmp/kselftest headers
make O=/tmp/kselftest -C tools/testing/selftests

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306012020.E4oEWbWO-lkp@intel.com/

Note: functions only called from assembly code should be annotated with the asmlinkage attribute
All warnings (new ones prefixed by >>):

Warning: Kernel ABI header at 'tools/include/uapi/linux/in.h' differs from latest version at 'include/uapi/linux/in.h'
Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
Makefile.config:697: No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev
>> pmu-events/jevents.c:72:22: warning: no previous prototype for 'convert' [-Wmissing-prototypes]
72 | enum aggr_mode_class convert(const char *aggr_mode)
| ^~~~~~~
In file included from sigchain.c:3:
In function 'xrealloc',
inlined from 'sigchain_push.isra' at sigchain.c:26:2:
subcmd-util.h:56:23: error: pointer may be used after 'realloc' [-Werror=use-after-free]
56 | ret = realloc(ptr, size);
| ^~~~~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
52 | void *ret = realloc(ptr, size);
| ^~~~~~~~~~~~~~~~~~
subcmd-util.h:58:31: error: pointer may be used after 'realloc' [-Werror=use-after-free]
58 | ret = realloc(ptr, 1);
| ^~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
52 | void *ret = realloc(ptr, size);
| ^~~~~~~~~~~~~~~~~~
In function 'xrealloc',
inlined from 'sigchain_push' at sigchain.c:26:2,
inlined from 'sigchain_push_common' at sigchain.c:53:2:
subcmd-util.h:56:23: error: pointer may be used after 'realloc' [-Werror=use-after-free]
56 | ret = realloc(ptr, size);
| ^~~~~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
52 | void *ret = realloc(ptr, size);
| ^~~~~~~~~~~~~~~~~~
subcmd-util.h:58:31: error: pointer may be used after 'realloc' [-Werror=use-after-free]
58 | ret = realloc(ptr, 1);
| ^~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
52 | void *ret = realloc(ptr, size);
| ^~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [tools/build/Makefile.build:96: tools/perf/sigchain.o] Error 1
make[6]: *** Waiting for unfinished jobs....
In file included from help.c:12:
In function 'xrealloc',
inlined from 'add_cmdname' at help.c:24:2:
subcmd-util.h:56:23: error: pointer may be used after 'realloc' [-Werror=use-after-free]
56 | ret = realloc(ptr, size);
| ^~~~~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
52 | void *ret = realloc(ptr, size);
| ^~~~~~~~~~~~~~~~~~
subcmd-util.h:58:31: error: pointer may be used after 'realloc' [-Werror=use-after-free]
58 | ret = realloc(ptr, 1);
| ^~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
52 | void *ret = realloc(ptr, size);
| ^~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [tools/build/Makefile.build:96: tools/perf/help.o] Error 1
make[5]: *** [Makefile:59: tools/perf/libsubcmd-in.o] Error 2
make[4]: *** [Makefile.perf:811: tools/perf/libsubcmd.a] Error 2
make[4]: *** Waiting for unfinished jobs....
PERF_VERSION = 5.9.rc3.g560ccbc4a52c
make[3]: *** [Makefile.perf:233: sub-make] Error 2
make[2]: *** [Makefile:70: all] Error 2

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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