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| author | David Gow <davidgow@google.com> | 2021-05-13 23:03:50 +0300 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2021-06-24 02:06:04 +0300 |
| commit | 44acdbb250a57240ec113f12bd6229854681ea5f (patch) | |
| tree | 63db8f2396302ed07607692114a51dd4c3c08594 | |
| parent | 255ede3b129041eae4edfdce121cedbfabfdd30e (diff) | |
| download | linux-44acdbb250a57240ec113f12bd6229854681ea5f.tar.xz | |
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>
| -rw-r--r-- | include/kunit/test.h | 2 | ||||
| -rw-r--r-- | lib/kunit/string-stream.h | 6 |
2 files changed, 4 insertions, 4 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 diff --git a/lib/kunit/string-stream.h b/lib/kunit/string-stream.h index fe98a00b75a9..5e94b623454f 100644 --- a/lib/kunit/string-stream.h +++ b/lib/kunit/string-stream.h @@ -35,9 +35,9 @@ struct string_stream *alloc_string_stream(struct kunit *test, gfp_t gfp); int __printf(2, 3) string_stream_add(struct string_stream *stream, const char *fmt, ...); -int string_stream_vadd(struct string_stream *stream, - const char *fmt, - va_list args); +int __printf(2, 0) string_stream_vadd(struct string_stream *stream, + const char *fmt, + va_list args); char *string_stream_get_string(struct string_stream *stream); |