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Subject[PATCH] ARM: DMA: Silence declared inside parameter list warning for !CONFIG_MMU
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Fix below warning, the struct dma_coherent_area takes no space if !CONFIG_MMU.

CC arch/arm/mm/dma-mapping.o
arch/arm/mm/dma-mapping.c:309: warning: 'struct dma_coherent_area' declared inside parameter list
arch/arm/mm/dma-mapping.c:309: warning: its scope is only this definition or declaration, which is probably not what you want
arch/arm/mm/dma-mapping.c:334: warning: 'struct dma_coherent_area' declared inside parameter list
arch/arm/mm/dma-mapping.c:374: warning: 'struct dma_coherent_area' declared inside parameter list

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
arch/arm/mm/dma-mapping.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 8089499..da3b33a 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -297,6 +297,8 @@ static void dma_free_area(void *cpu_addr, size_t size, struct dma_coherent_area
#define coherent_wc_area NULL
#define coherent_dma_area NULL

+struct dma_coherent_area { };
+
void dma_coherent_reserve(void)
{
}
--
1.7.4.1




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