linux-kernel - Re: printk(KERN_x...) vs dev

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Message-ID: <20110121085526.4617abae@lxorguk.ukuu.org.uk>
Date:	Fri, 21 Jan 2011 08:55:26 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Sutharshan Ramamoorthy / Prod" <srmt@...ress.com>
Cc:	kernelnewbies@...linux.org, linux-kernel@...r.kernel.org,
	odc@...ress.com
Subject: Re: printk(KERN_x...) vs dev_x()

> At some places in the code, there is no valid 'dev' pointer to pass to
> dev_xx() macro, at such places is it ok to use printk(KERN_XXX...)?

pr_debug() is the equivalent you want. Ideally tweak the code so the dev
pointer is available. I know that right now is a bit of a problem in a
few cases (some tty stuff for example only just acquired a usable dev
pointer)

Alan
			-- Linus Torvalds
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