From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> commit 00dc514612fe98cfa117193b9df28f15e7c9db9c upstream. The -Wcast-function-type-mismatch option was introduced in clang 19 and its enabled by default, since we use -Werror, and python bindings do casts that are valid but trips this warning, disable it if present. Closes: https://lore.kernel.org/all/CA+icZUXoJ6BS3GMhJHV3aZWyb5Cz2haFneX0C5pUMUUhG-UVKQ@xxxxxxxxxxxxxx Reported-by: Sedat Dilek <sedat.dilek@xxxxxxxxx> Tested-by: Sedat Dilek <sedat.dilek@xxxxxxxxx> Cc: Ian Rogers <irogers@xxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Namhyung Kim <namhyung@xxxxxxxxxx> Cc: Nathan Chancellor <nathan@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx # To allow building with the upcoming clang 19 Link: https://lore.kernel.org/lkml/CA+icZUVtHn8X1Tb_Y__c-WswsO0K8U9uy3r2MzKXwTA5THtL7w@xxxxxxxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/perf/util/setup.py | 2 ++ 1 file changed, 2 insertions(+) --- a/tools/perf/util/setup.py +++ b/tools/perf/util/setup.py @@ -63,6 +63,8 @@ cflags = getenv('CFLAGS', '').split() cflags += ['-fno-strict-aliasing', '-Wno-write-strings', '-Wno-unused-parameter', '-Wno-redundant-decls' ] if cc_is_clang: cflags += ["-Wno-unused-command-line-argument" ] + if clang_has_option("-Wno-cast-function-type-mismatch"): + cflags += ["-Wno-cast-function-type-mismatch" ] else: cflags += ['-Wno-cast-function-type' ] Patches currently in stable-queue which might be from acme@xxxxxxxxxx are queue-6.11/perf-hist-update-hist-symbol-when-updating-maps.patch queue-6.11/perf-callchain-fix-stitch-lbr-memory-leaks.patch queue-6.11/perf-python-disable-wno-cast-function-type-mismatch-if-present-on-clang.patch
