Reduces kernel size by 68739 bytes on allyesconfig build:
text data bss dec hex filename
82662736 22255384 20627456 125545576 77bac68 vmlinux0
82594029 22255352 20627456 125476837 77a9fe5 vmlinux1
Signed-off-by: Denys Vlasenko <[email protected]>
Cc: Marek Szyprowski <[email protected]>
Cc: Konrad Rzeszutek Wilk <[email protected]>
Cc: David Woodhouse <[email protected]>
Cc: Don Dutile <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: [email protected]
Cc: [email protected]
---
Changes in v2: added EXPORT_SYMBOL()
arch/x86/include/asm/dma-mapping.h | 28 ++--------------------------
arch/x86/kernel/pci-dma.c | 27 +++++++++++++++++++++++++++
2 files changed, 29 insertions(+), 26 deletions(-)
diff --git a/arch/x86/include/asm/dma-mapping.h
b/arch/x86/include/asm/dma-mapping.h
index 808dae6..6339320 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -127,33 +127,9 @@ static inline gfp_t dma_alloc_coherent_gfp_flags(struct
device *dev, gfp_t gfp)
#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL)
-static inline void *
+void *
dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle,
- gfp_t gfp, struct dma_attrs *attrs)
-{
- struct dma_map_ops *ops = get_dma_ops(dev);
- void *memory;
-
- gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
-
- if (dma_alloc_from_coherent(dev, size, dma_handle, &memory))
- return memory;
-
- if (!dev)
- dev = &x86_dma_fallback_dev;
-
- if (!is_device_dma_capable(dev))
- return NULL;
-
- if (!ops->alloc)
- return NULL;
-
- memory = ops->alloc(dev, size, dma_handle,
- dma_alloc_coherent_gfp_flags(dev, gfp), attrs);
- debug_dma_alloc_coherent(dev, size, *dma_handle, memory);
-
- return memory;
-}
+ gfp_t gfp, struct dma_attrs *attrs);
#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index a25e202..74e2f6a 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -140,6 +140,34 @@ void dma_generic_free_coherent(struct device *dev, size_t
size, void *vaddr,
free_pages((unsigned long)vaddr, get_order(size));
}
+void *dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle,
+ gfp_t gfp, struct dma_attrs *attrs)
+{
+ struct dma_map_ops *ops = get_dma_ops(dev);
+ void *memory;
+
+ gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
+
+ if (dma_alloc_from_coherent(dev, size, dma_handle, &memory))
+ return memory;
+
+ if (!dev)
+ dev = &x86_dma_fallback_dev;
+
+ if (!is_device_dma_capable(dev))
+ return NULL;
+
+ if (!ops->alloc)
+ return NULL;
+
+ memory = ops->alloc(dev, size, dma_handle,
+ dma_alloc_coherent_gfp_flags(dev, gfp), attrs);
+ debug_dma_alloc_coherent(dev, size, *dma_handle, memory);
+
+ return memory;
+}
+EXPORT_SYMBOL(dma_generic_free_coherent)
+
/*
* See <Documentation/x86/x86_64/boot-options.txt> for the iommu kernel
* parameter documentation.
--
1.8.1.4
--
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