linux-kernel - Re: [alsa-devel] Improving or replacing snd

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Date:	Fri, 31 May 2013 10:06:38 -0700
From:	Joe Perches <joe@...ches.com>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	Jaroslav Kysela <perex@...ex.cz>, alsa-devel@...a-project.org,
	Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: [alsa-devel] Improving or replacing snd_printk()

On Fri, 2013-05-31 at 16:34 +0200, Takashi Iwai wrote:
> Also, another expected problem is that neither card->card_dev nor
> card->dev are set when snd_card_err() is called.  Many drivers set the
> device pointers at the late stage just before the device
> registration.  So, systematic replacements won't work as expected in
> many cases.  (The same is applied for replacement with dev_*(), too.)

If all the pointers are null, then the logging function could
use pr_<level> and %pf, __builtin_return_addr() or another
method to look up the module name.


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