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authorHeiko Carstens <heiko.carstens@de.ibm.com>2010-08-13 09:39:18 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-13 12:03:24 -0700
commite259f191f2244df04a7746fac1df8aa68ebd0106 (patch)
treee466b1d9018e23a5e06216368a4885059eb89849 /include/linux/dma-mapping.h
parentc7dcf87a6881bf796faee83003163eb3de41a309 (diff)
downloadop-kernel-dev-e259f191f2244df04a7746fac1df8aa68ebd0106.zip
op-kernel-dev-e259f191f2244df04a7746fac1df8aa68ebd0106.tar.gz
dma-mapping: fix build errors on !HAS_DMA architectures
commit 4565f0170dfc849b3629c27d769db800467baa62 "dma-mapping: unify dma_get_cache_alignment implementations" causes build errors on !HAS_DMA architectures/platforms like s390 and sun3: include/linux/dma-mapping.h:145: error: static declaration of 'dma_get_cache_alignment' follows non-static declaration include/asm-generic/dma-mapping-broken.h:73: error: previous declaration of 'dma_get_cache_alignment' was here Fix this by adding an explicit ifdef. Cc: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/dma-mapping.h')
-rw-r--r--include/linux/dma-mapping.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index e0670a5..ce29b81 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -142,6 +142,7 @@ static inline int dma_set_seg_boundary(struct device *dev, unsigned long mask)
return -EIO;
}
+#ifdef CONFIG_HAS_DMA
static inline int dma_get_cache_alignment(void)
{
#ifdef ARCH_DMA_MINALIGN
@@ -149,6 +150,7 @@ static inline int dma_get_cache_alignment(void)
#endif
return 1;
}
+#endif
/* flags for the coherent memory api */
#define DMA_MEMORY_MAP 0x01
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