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authorArnaldo Carvalho de Melo <acme@redhat.com>2018-12-06 17:20:21 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-07-10 10:55:36 +0300
commit07d6f72eef68741e02b1a12d9207ed2a5e92e66f (patch)
tree90c4286b52a5bbd546bb2fa86c0ec5bdc4260f6a /tools
parent948475f743edfd0979c7c240028d8fac6639cb36 (diff)
downloadlinux-07d6f72eef68741e02b1a12d9207ed2a5e92e66f.tar.xz
perf help: Remove needless use of strncpy()
commit b6313899f4ed2e76b8375cf8069556f5b94fbff0 upstream. Since we make sure the destination buffer has at least strlen(orig) + 1, no need to do a strncpy(dest, orig, strlen(orig)), just use strcpy(dest, orig). This silences this gcc 8.2 warning on Alpine Linux: In function 'add_man_viewer', inlined from 'perf_help_config' at builtin-help.c:284:3: builtin-help.c:192:2: error: 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length [-Werror=stringop-truncation] strncpy((*p)->name, name, len); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ builtin-help.c: In function 'perf_help_config': builtin-help.c:187:15: note: length computed here size_t len = strlen(name); ^~~~~~~~~~~~ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Fixes: 078006012401 ("perf_counter tools: add in basic glue from Git") Link: https://lkml.kernel.org/n/tip-2f69l7drca427ob4km8i7kvo@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/builtin-help.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index 3bdb2c78a21b..476e24cf97fa 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -186,7 +186,7 @@ static void add_man_viewer(const char *name)
while (*p)
p = &((*p)->next);
*p = zalloc(sizeof(**p) + len + 1);
- strncpy((*p)->name, name, len);
+ strcpy((*p)->name, name);
}
static int supported_man_viewer(const char *name, size_t len)