linux-kernel - Re: [PATCH 09/30] USB: ehci-omap: Use devm_request_and

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Message-ID: <20130128152010.GN23505@n2100.arm.linux.org.uk>
Date:	Mon, 28 Jan 2013 15:20:10 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Roger Quadros <rogerq@...com>, tony@...mide.com,
	sameo@...ux.intel.com, balbi@...com, gregkh@...uxfoundation.org,
	eballetbo@...il.com, javier@...hile0.org, sshtylyov@...sta.com,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 09/30] USB: ehci-omap: Use devm_request_and_ioremap()

On Mon, Jan 28, 2013 at 10:17:33AM -0500, Alan Stern wrote:
> On Mon, 28 Jan 2013, Roger Quadros wrote:
> 
> > Make use of devm_request_and_ioremap() and correct comment.
> 
> Didn't a big patch come through recently converting all usages of 
> devm_request_and_ioremap() to another function (I forget the name) that 
> does its own error reporting and returns an ERR_PTR value?
> 
> (Checks the mailing list archive...)  Ah, here it is:
> 
> 	http://marc.info/?l=linux-usb&m=135876311801537&w=2
> 
> And the new function is devm_ioremap_resource().  We should avoid 
> adding new usages of an old interface.

Maybe... if devm_ioremap_resource() was already in the kernel.  The
problem at the moment is it isn't, and it'll probably be rather
horrid for everyone to deal with especially when it comes to testing.
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