lkml.org 
[lkml]   [2018]   [Aug]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/4] arm-nommu: don't define arch_teardown_dma_ops
Date
We can just use the default implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
arch/arm/include/asm/dma-mapping.h | 2 ++
arch/arm/mm/dma-mapping-nommu.c | 4 ----
2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 8436f6ade57d..965b7c846ecb 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -100,8 +100,10 @@ static inline unsigned long dma_max_pfn(struct device *dev)
extern void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
const struct iommu_ops *iommu, bool coherent);

+#ifdef CONFIG_MMU
#define arch_teardown_dma_ops arch_teardown_dma_ops
extern void arch_teardown_dma_ops(struct device *dev);
+#endif

/* do not use this function in a driver */
static inline bool is_device_dma_coherent(struct device *dev)
diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index f448a0663b10..aa7aba302e76 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -237,7 +237,3 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,

set_dma_ops(dev, dma_ops);
}
-
-void arch_teardown_dma_ops(struct device *dev)
-{
-}
--
2.18.0
\
 
 \ /
  Last update: 2018-08-27 10:47    [W:0.119 / U:0.676 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site