From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 19 Nov 2009 20:58:31 +0000 (+0000)
Subject: ARM: dma-mapping: clean up coherent arch dma allocation
X-Git-Tag: v2.6.33-rc1~384^2~4^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ebd7a845fa4332da3ebcbe8cf1b09bb43413420e;p=pandora-kernel.git

ARM: dma-mapping: clean up coherent arch dma allocation

IXP23xx added support for dma_alloc_coherent() for DMA arches with an
exception in dma_alloc_coherent().  This is a subset of what goes on
in __dma_alloc(), and there is no reason why dma_alloc_writecombine()
should not be given the same treatment (except, maybe, that IXP23xx
doesn't use it.)

We can better deal with this by moving the arch_is_coherent() test
inside __dma_alloc() and killing the code duplication.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Ungerer <gerg@uclinux.org>
---

Reading git-diff-tree failed