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tools string: Use __fallthrough in perf_atoll() 

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.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-0ophb30v9apkk6o95el0rqlq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
zero-colors
Arnaldo Carvalho de Melo 2017-02-08 17:01:46 -03:00
parent b5bf1733d6
commit 94bdd5edb3
1 changed files with 2 additions and 0 deletions
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2
tools/perf/util/string.c
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@ -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: