Reduces kernel size by 76720 bytes on allyesconfig build:
text data bss dec hex filename
82594029 22255352 20627456 125476837 77a9fe5 vmlinux1
82517277 22255384 20627456 125400117 7797435 vmlinux2
Signed-off-by: Denys Vlasenko <dvlas...@redhat.com>
Cc: Marek Szyprowski <m.szyprow...@samsung.com>
Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
Cc: David Woodhouse <dw...@infradead.org>
Cc: Don Dutile <ddut...@redhat.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: "H. Peter Anvin" <h...@zytor.com>
Cc: Andi Kleen <a...@firstfloor.org>
Cc: x...@kernel.org
Cc: linux-kernel@vger.kernel.org
---
arch/x86/include/asm/dma-mapping.h | 18 +++---------------
arch/x86/kernel/pci-dma.c | 16 ++++++++++++++++
2 files changed, 19 insertions(+), 15 deletions(-)
diff --git a/arch/x86/include/asm/dma-mapping.h
b/arch/x86/include/asm/dma-mapping.h
index 6339320..1f5b728 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -133,20 +133,8 @@ dma_alloc_attrs(struct device *dev, size_t size,
dma_addr_t *dma_handle,
#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
-static inline void dma_free_attrs(struct device *dev, size_t size,
- void *vaddr, dma_addr_t bus,
- struct dma_attrs *attrs)
-{
- struct dma_map_ops *ops = get_dma_ops(dev);
-
- WARN_ON(irqs_disabled()); /* for portability */
-
- if (dma_release_from_coherent(dev, get_order(size), vaddr))
- return;
-
- debug_dma_free_coherent(dev, size, vaddr, bus);
- if (ops->free)
- ops->free(dev, size, vaddr, bus, attrs);
-}
+void dma_free_attrs(struct device *dev, size_t size,
+ void *vaddr, dma_addr_t bus,
+ struct dma_attrs *attrs);
#endif
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 74e2f6a..4fa0f15 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -167,6 +167,22 @@ void *dma_alloc_attrs(struct device *dev, size_t size,
dma_addr_t *dma_handle,
return memory;
}
+void dma_free_attrs(struct device *dev, size_t size,
+ void *vaddr, dma_addr_t bus,
+ struct dma_attrs *attrs)
+{
+ struct dma_map_ops *ops = get_dma_ops(dev);
+
+ WARN_ON(irqs_disabled()); /* for portability */
+
+ if (dma_release_from_coherent(dev, get_order(size), vaddr))
+ return;
+
+ debug_dma_free_coherent(dev, size, vaddr, bus);
+ if (ops->free)
+ ops->free(dev, size, vaddr, bus, attrs);
+}
+
/*
* See <Documentation/x86/x86_64/boot-options.txt> for the iommu kernel
* parameter documentation.
--
1.8.1.4
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