From: Roland Dreier <rdreier@cisco.com>
Date: Wed, 14 Feb 2007 08:32:53 +0000 (-0800)
Subject: [PATCH] ia64: fix noncoherent DMA API so devres builds
X-Git-Tag: v2.6.21-rc1~272
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b7de8e7e3c7b79a72c20c7fd58bd65df3d146b13;p=pandora-kernel.git

[PATCH] ia64: fix noncoherent DMA API so devres builds

On ia64, drivers/base/dma-mapping.c doesn't build because it calls
dma_alloc_noncoherent() and dma_free_noncoherent(), which appear to be
terminally broken; the calls end up generating errors like

    drivers/base/dma-mapping.c: In function 'dmam_noncoherent_release':
    drivers/base/dma-mapping.c:32: error: 'struct ia64_machine_vector' has no member named 'platform_dma_free_coherent'

because the multiple levels of macro expansion in <asm/dma-mapping.h> and
<asm/machvec.h> end up turning a call to dma_free_noncoherent() into
ia64_mv.platform_dma_free_coherent (instead of the intended
ia64_mv.dma_free_coherent).

This patch fixes this by converting dma_{alloc,free}_noncoherent() into
inline functions that call the corresponding coherent functions, instead of
trying to do this with macros.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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