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authorDenys Vlasenko <dvlasenk@redhat.com>2015-04-13 13:54:33 +0200
committerThomas Gleixner <tglx@linutronix.de>2015-05-05 20:48:02 +0200
commitf1dc154f82595386cddcc7b980d8760474c3dd2d (patch)
tree0557565fef99173af642af1a0c7a2f55411ebd00 /arch/x86/kernel/pci-dma.c
parent0c7965ff22472f60d5cf07308cb59f3a118feb8a (diff)
x86: Deinline dma_free_attrs()
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 <dvlasenk@redhat.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Don Dutile <ddutile@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: x86@kernel.org Link: http://lkml.kernel.org/r/1428926075-28796-3-git-send-email-dvlasenk@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/pci-dma.c')
-rw-r--r--arch/x86/kernel/pci-dma.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index f9f7656e1d41..353972c1946c 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -168,6 +168,23 @@ void *dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle,
}
EXPORT_SYMBOL(dma_alloc_attrs);
+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);
+}
+EXPORT_SYMBOL(dma_free_attrs);
+
/*
* See <Documentation/x86/x86_64/boot-options.txt> for the iommu kernel
* parameter documentation.