* [PATCH] net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC_DEBUG
@ 2016-06-15 9:14 Jason A. Donenfeld
2016-06-16 5:08 ` David Miller
0 siblings, 1 reply; 3+ messages in thread
From: Jason A. Donenfeld @ 2016-06-15 9:14 UTC (permalink / raw)
To: davem, netdev, linux-kernel; +Cc: Jason A. Donenfeld, Tim Bingham
The implementation of net_dbg_ratelimited in the CONFIG_DYNAMIC_DEBUG
case was added with 2c94b5373 ("net: Implement net_dbg_ratelimited() for
CONFIG_DYNAMIC_DEBUG case"). The implementation strategy was to take the
usual definition of the dynamic_pr_debug macro, but alter it by adding a
call to "net_ratelimit()" in the if statement. This is, in fact, the
correct approach.
However, while doing this, the author of the commit forgot to surround
fmt by pr_fmt, resulting in unprefixed log messages appearing in the
console. So, this commit adds back the pr_fmt(fmt) invocation, making
net_dbg_ratelimited properly consistent across DEBUG, no DEBUG, and
DYNAMIC_DEBUG cases, and bringing parity with the behavior of
dynamic_pr_debug as well.
Fixes: 2c94b5373 ("net: Implement net_dbg_ratelimited() for CONFIG_DYNAMIC_DEBUG case")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Tim Bingham <tbingham@akamai.com>
---
include/linux/net.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/linux/net.h b/include/linux/net.h
index 9aa49a0..25aa03b 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -251,7 +251,8 @@ do { \
DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) && \
net_ratelimit()) \
- __dynamic_pr_debug(&descriptor, fmt, ##__VA_ARGS__); \
+ __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
+ ##__VA_ARGS__); \
} while (0)
#elif defined(DEBUG)
#define net_dbg_ratelimited(fmt, ...) \
--
2.8.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC_DEBUG
2016-06-15 9:14 [PATCH] net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC_DEBUG Jason A. Donenfeld
@ 2016-06-16 5:08 ` David Miller
2016-06-16 8:34 ` Jason A. Donenfeld
0 siblings, 1 reply; 3+ messages in thread
From: David Miller @ 2016-06-16 5:08 UTC (permalink / raw)
To: Jason; +Cc: netdev, linux-kernel, tbingham
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Wed, 15 Jun 2016 11:14:53 +0200
> The implementation of net_dbg_ratelimited in the CONFIG_DYNAMIC_DEBUG
> case was added with 2c94b5373 ("net: Implement net_dbg_ratelimited() for
> CONFIG_DYNAMIC_DEBUG case"). The implementation strategy was to take the
> usual definition of the dynamic_pr_debug macro, but alter it by adding a
> call to "net_ratelimit()" in the if statement. This is, in fact, the
> correct approach.
>
> However, while doing this, the author of the commit forgot to surround
> fmt by pr_fmt, resulting in unprefixed log messages appearing in the
> console. So, this commit adds back the pr_fmt(fmt) invocation, making
> net_dbg_ratelimited properly consistent across DEBUG, no DEBUG, and
> DYNAMIC_DEBUG cases, and bringing parity with the behavior of
> dynamic_pr_debug as well.
>
> Fixes: 2c94b5373 ("net: Implement net_dbg_ratelimited() for CONFIG_DYNAMIC_DEBUG case")
> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
> Cc: Tim Bingham <tbingham@akamai.com>
Looks good, applied, thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-06-15 9:14 [PATCH] net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC_DEBUG Jason A. Donenfeld
2016-06-16 5:08 ` David Miller
2016-06-16 8:34 ` Jason A. Donenfeld
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