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| author | David Gow <davidgow@google.com> | 2021-05-13 13:03:50 -0700 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2021-06-23 17:06:04 -0600 |
| commit | 44acdbb250a57240ec113f12bd6229854681ea5f (patch) | |
| tree | 63db8f2396302ed07607692114a51dd4c3c08594 /include/kunit/test.h | |
| parent | 255ede3b129041eae4edfdce121cedbfabfdd30e (diff) | |
| download | lwn-44acdbb250a57240ec113f12bd6229854681ea5f.tar.gz lwn-44acdbb250a57240ec113f12bd6229854681ea5f.zip | |
kunit: Add gnu_printf specifiers
Some KUnit functions use variable arguments to implement a printf-like
format string. Use the __printf() attribute to let the compiler warn if
invalid format strings are passed in.
If the kernel is build with W=1, it complained about the lack of these
specifiers, e.g.:
../lib/kunit/test.c:72:2: warning: function ‘kunit_log_append’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Daniel Latypov <dlatypov@google.com>
Acked-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'include/kunit/test.h')
| -rw-r--r-- | include/kunit/test.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/kunit/test.h b/include/kunit/test.h index b68c61348121..512bfb5fe24f 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -610,7 +610,7 @@ static inline void *kunit_kzalloc(struct kunit *test, size_t size, gfp_t gfp) void kunit_cleanup(struct kunit *test); -void kunit_log_append(char *log, const char *fmt, ...); +void __printf(2, 3) kunit_log_append(char *log, const char *fmt, ...); /* * printk and log to per-test or per-suite log buffer. Logging only done |