diff options
| author | Markus Trippelsdorf <[email protected]> | 2012-10-05 12:57:17 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2012-10-05 16:26:01 +0000 |
| commit | 2351a6c6e7d5a5e848411b5dd2c02142497624cc (patch) | |
| tree | 8acb375523fff8a24a23a75c9a64caa00124b835 | |
| parent | net, TTY: initialize tty->driver_data before usage (diff) | |
| download | kernel-2351a6c6e7d5a5e848411b5dd2c02142497624cc.tar.gz kernel-2351a6c6e7d5a5e848411b5dd2c02142497624cc.zip | |
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 <[email protected]>
Acked-and-tested-by: Borislav Petkov <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
| -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; \ }) |