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| author | Markus Trippelsdorf <markus@trippelsdorf.de> | 2012-10-05 14:57:17 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-05 09:26:01 -0700 |
| commit | 2351a6c6e7d5a5e848411b5dd2c02142497624cc (patch) | |
| tree | 8acb375523fff8a24a23a75c9a64caa00124b835 /include | |
| parent | 6f5601251d7e306b8a7bf5e674c5307d865c0fa1 (diff) | |
| download | linux-2351a6c6e7d5a5e848411b5dd2c02142497624cc.tar.gz linux-2351a6c6e7d5a5e848411b5dd2c02142497624cc.tar.xz | |
tty: Fix bogus "callbacks suppressed" messages
On the current git tree one sees messages such as:
tty_init_dev: 24 callbacks suppressed
tty_init_dev: 3 callbacks suppressed
To fix this we need to look at condition before calling __ratelimit in
the WARN_RATELIMIT macro. While at it remove the superfluous
__WARN_RATELIMIT macros.
Original patch is from Joe Perches and Jiri Slaby.
Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Acked-and-tested-by: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ratelimit.h | 27 |
1 files changed, 9 insertions, 18 deletions
diff --git a/include/linux/ratelimit.h b/include/linux/ratelimit.h index e11ccb4cf48d..0a260d8a18bf 100644 --- a/include/linux/ratelimit.h +++ b/include/linux/ratelimit.h @@ -46,20 +46,17 @@ extern int ___ratelimit(struct ratelimit_state *rs, const char *func); #define WARN_ON_RATELIMIT(condition, state) \ WARN_ON((condition) && __ratelimit(state)) -#define __WARN_RATELIMIT(condition, state, format...) \ -({ \ - int rtn = 0; \ - if (unlikely(__ratelimit(state))) \ - rtn = WARN(condition, format); \ - rtn; \ -}) - -#define WARN_RATELIMIT(condition, format...) \ +#define WARN_RATELIMIT(condition, format, ...) \ ({ \ static DEFINE_RATELIMIT_STATE(_rs, \ DEFAULT_RATELIMIT_INTERVAL, \ DEFAULT_RATELIMIT_BURST); \ - __WARN_RATELIMIT(condition, &_rs, format); \ + int rtn = !!(condition); \ + \ + if (unlikely(rtn && __ratelimit(&_rs))) \ + WARN(rtn, format, ##__VA_ARGS__); \ + \ + rtn; \ }) #else @@ -67,15 +64,9 @@ extern int ___ratelimit(struct ratelimit_state *rs, const char *func); #define WARN_ON_RATELIMIT(condition, state) \ WARN_ON(condition) -#define __WARN_RATELIMIT(condition, state, format...) \ -({ \ - int rtn = WARN(condition, format); \ - rtn; \ -}) - -#define WARN_RATELIMIT(condition, format...) \ +#define WARN_RATELIMIT(condition, format, ...) \ ({ \ - int rtn = WARN(condition, format); \ + int rtn = WARN(condition, format, ##__VA_ARGS__); \ rtn; \ }) |