4.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: Arnaldo Carvalho de Melo <a...@redhat.com> commit 94bdd5edb34e472980d1e18b4600d6fb92bd6b0a upstream. The implicit fall through case label here is intended, so let us inform that to gcc >= 7: CC /tmp/build/perf/util/string.o util/string.c: In function 'perf_atoll': util/string.c:22:7: error: this statement may fall through [-Werror=implicit-fallthrough=] if (*p) ^ util/string.c:24:3: note: here case '\0': ^~~~ Cc: Adrian Hunter <adrian.hun...@intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Wang Nan <wangn...@huawei.com> Link: http://lkml.kernel.org/n/tip-0ophb30v9apkk6o95el0r...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- tools/perf/util/string.c | 2 ++ 1 file changed, 2 insertions(+) --- a/tools/perf/util/string.c +++ b/tools/perf/util/string.c @@ -21,6 +21,8 @@ s64 perf_atoll(const char *str) case 'b': case 'B': if (*p) goto out_err; + + __fallthrough; case '\0': return length; default: