linux-kernel - Re: [RFC][PATCH 1/5] IPVS: prefix EnterFunction and LeaveFunction msg with "IPVS:"

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Message-ID: <b5ddba180907280415y4a9ef71i5cd90ca409b52965@mail.gmail.com>
Date:	Tue, 28 Jul 2009 13:15:04 +0200
From:	Hannes Eder <heder@...gle.com>
To:	Jan Engelhardt <jengelh@...ozas.de>
Cc:	lvs-devel@...r.kernel.org, netdev@...r.kernel.org,
	netfilter-devel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH 1/5] IPVS: prefix EnterFunction and LeaveFunction msg 
	with "IPVS:"

On Mon, Jul 27, 2009 at 20:14, Jan Engelhardt<jengelh@...ozas.de> wrote:
>
> On Monday 2009-07-27 15:46, Hannes Eder wrote:
>>
>>Now all printk messages from IPVS are prefixed with "IPVS:".
>>
>>+#define EnterFunction(level)                                                 \
>>+      do {                                                                   \
>>+              if (level <= ip_vs_get_debug_level())                          \
>>+                      printk(KERN_DEBUG "IPVS: Enter: %s, %s line %i\n",     \
>>+                              __func__, __FILE__, __LINE__);                 \
>>+      } while (0)
>>+#define LeaveFunction(level)                                                 \
>>+      do {                                                                   \
>>+              if (level <= ip_vs_get_debug_level())                          \
>>+                      printk(KERN_DEBUG "IPVS: Leave: %s, %s line %i\n",     \
>>+                              __func__, __FILE__, __LINE__);                 \
>>+      } while (0)
>
> I think you should rather make use of pr_fmt:
>
> <before any #includes>
> #define pr_fmt(x) "IPVS: " x
>
> And then use pr_<level>("Elvis has left the building") in code. This
> will add IPVS: automatically to all pr_* calls, alleviating the need
> to manually type it into all printks.

I like this idea.  I'll come up with an extra patch, it does not fit
into this series anyway.

> Of course, if you only want it for the two defines here, scrap
> my idea :)
>

Cheers,
-Hannes
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