From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Dan Murphy <dmurphy@ti.com>,
Guennadi Liakhovetski <g.liakhovetski@gmx.de>,
Kevin Hilman <khilman@linaro.org>,
linux-sh@vger.kernel.org, linux-mmc@vger.kernel.org,
Simon Horman <horms@verge.net.au>, Chris Ball <cjb@laptop.org>
Subject: Re: [PATCH v2] dmaengine: shdma: fix a build failure on platforms with no DMA support
Date: Fri, 31 May 2013 17:04:17 +0200 [thread overview]
Message-ID: <4422231.HoYmB8LUsn@wuerfel> (raw)
In-Reply-To: <51A8BB0D.9060907@ti.com>
On Friday 31 May 2013 10:00:29 Dan Murphy wrote:
> My consideration was that since this is an exported symbol that a driver
> could call this API explicitly without checking for
> the function pointer first, there is a potential of calling a NULL pointer.
Drivers never call a filter function directly, so that is not an issue.
Even if a driver would try it, that would not actually compile.
Arnd
next prev parent reply other threads:[~2013-05-31 15:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-31 3:01 [PATCH v2] dmaengine: shdma: fix a build failure on platforms with no DMA support Guennadi Liakhovetski
2013-05-31 11:18 ` Dan Murphy
2013-05-31 13:08 ` Guennadi Liakhovetski
2013-05-31 15:00 ` Dan Murphy
2013-05-31 15:04 ` Arnd Bergmann [this message]
2013-05-31 14:51 ` Arnd Bergmann
2013-06-27 13:49 ` Simon Horman
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