Re: [PATCH] wireless: change cfg80211 regulatory domain info as debug messages

From: Joe Perches
Date: Sun Nov 15 2015 - 12:39:39 EST

On Sun, 2015-11-15 at 15:31 +0800, Dave Young wrote:
> cfg80211 module prints a lot of messages like below. Actually printing
> once is acceptable but sometimes it will print again and again, it looks
> very annoying. It is better to change these detail messages to debugging
> only.

So maybe add some wrapper that does a pr_info then
a pr_debug for the second and subsequent uses like:

#define pr_info_once_then_debug(fmt, ...) \
({ \
static bool __print_once __read_mostly; \
if (!__print_once) { \
__print_once = true; \
pr_info(fmt, ##__VA_ARGS__); \
} else { \
pr_debug(fmt, ##__VA_ARGS__); \
} \

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at