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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-12-16 12:17:25 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-16 21:31:37 +0100 |
| commit | a79b7a2a758c39315344f0d86b5adb21d90d786e (patch) | |
| tree | 23cf1aa5b18c3c20b1964ed557a94a8825beb76e | |
| parent | 8b1fae4e4200388b64dd88065639413cb3f1051c (diff) | |
| download | lwn-a79b7a2a758c39315344f0d86b5adb21d90d786e.tar.gz lwn-a79b7a2a758c39315344f0d86b5adb21d90d786e.zip | |
x86: remove unused iommu_nr_pages
Impact: cleanup, remove dead code
The last usage was removed by the patch set culminating in
| commit e3c449f526cebb8d287241c7e82faafd9709668b
| Author: Joerg Roedel <joerg.roedel@amd.com>
| Date: Wed Oct 15 22:02:11 2008 -0700
|
| x86, AMD IOMMU: convert driver to generic iommu_num_pages function
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/include/asm/iommu.h | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/pci-dma.c | 7 |
2 files changed, 0 insertions, 9 deletions
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h index 0b500c5b6446..35276ec5925b 100644 --- a/arch/x86/include/asm/iommu.h +++ b/arch/x86/include/asm/iommu.h @@ -7,8 +7,6 @@ extern struct dma_mapping_ops nommu_dma_ops; extern int force_iommu, no_iommu; extern int iommu_detected; -extern unsigned long iommu_nr_pages(unsigned long addr, unsigned long len); - /* 10 seconds */ #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index 192624820217..e150ad4f0ccc 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -125,13 +125,6 @@ void __init pci_iommu_alloc(void) pci_swiotlb_init(); } -unsigned long iommu_nr_pages(unsigned long addr, unsigned long len) -{ - unsigned long size = roundup((addr & ~PAGE_MASK) + len, PAGE_SIZE); - - return size >> PAGE_SHIFT; -} -EXPORT_SYMBOL(iommu_nr_pages); #endif void *dma_generic_alloc_coherent(struct device *dev, size_t size, |