[Xen-devel] [PATCH] dma-mapping: remove unused attrs parameter to dma_common_get_sgtable

[Huaisheng Ye <yehs2007@xxxxxxxx>]

From: Huaisheng Ye <yehs1@xxxxxxxxxx>

dma_common_get_sgtable has parameter attrs which is not used at all.
Remove it.

Signed-off-by: Huaisheng Ye <yehs1@xxxxxxxxxx>
---
 drivers/xen/swiotlb-xen.c   | 2 +-
 include/linux/dma-mapping.h | 5 ++---
 kernel/dma/mapping.c        | 3 +--
 3 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 2a7f545..2dc17a5 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -697,7 +697,7 @@ static void xen_swiotlb_unmap_page(struct device *hwdev, 
dma_addr_t dev_addr,
                                                           handle, size, attrs);
        }
 #endif
-       return dma_common_get_sgtable(dev, sgt, cpu_addr, handle, size, attrs);
+       return dma_common_get_sgtable(dev, sgt, cpu_addr, handle, size);
 }
 
 static int xen_swiotlb_mapping_error(struct device *dev, dma_addr_t dma_addr)
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index d327bdd..bbfad44 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -483,7 +483,7 @@ void *dma_common_pages_remap(struct page **pages, size_t 
size,
 
 int
 dma_common_get_sgtable(struct device *dev, struct sg_table *sgt, void 
*cpu_addr,
-               dma_addr_t dma_addr, size_t size, unsigned long attrs);
+               dma_addr_t dma_addr, size_t size);
 
 static inline int
 dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr,
@@ -495,8 +495,7 @@ void *dma_common_pages_remap(struct page **pages, size_t 
size,
        if (ops->get_sgtable)
                return ops->get_sgtable(dev, sgt, cpu_addr, dma_addr, size,
                                        attrs);
-       return dma_common_get_sgtable(dev, sgt, cpu_addr, dma_addr, size,
-                       attrs);
+       return dma_common_get_sgtable(dev, sgt, cpu_addr, dma_addr, size);
 }
 
 #define dma_get_sgtable(d, t, v, h, s) dma_get_sgtable_attrs(d, t, v, h, s, 0)
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c
index 58dec7a..6b33f10 100644
--- a/kernel/dma/mapping.c
+++ b/kernel/dma/mapping.c
@@ -202,8 +202,7 @@ void dmam_release_declared_memory(struct device *dev)
  * Create scatter-list for the already allocated DMA buffer.
  */
 int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
-                void *cpu_addr, dma_addr_t dma_addr, size_t size,
-                unsigned long attrs)
+                void *cpu_addr, dma_addr_t dma_addr, size_t size)
 {
        struct page *page;
        int ret;
-- 
1.8.3.1



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