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

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Date:	Sun, 15 Nov 2015 09:38:54 -0800
From:	Joe Perches <joe@...ches.com>
To:	Dave Young <dyoung@...hat.com>, linux-wireless@...r.kernel.org
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	davem@...emloft.net, johannes@...solutions.net
Subject: Re: [PATCH] wireless: change cfg80211 regulatory domain info as
 debug messages

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__);			\
	}							\
})

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