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-rw-r--r--arch/x86/kernel/pci-dma.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 12eeb4bfcdeb..da93c65f8f0b 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -31,11 +31,6 @@ int no_iommu __read_mostly;
/* Set this to 1 if there is a HW IOMMU in the system */
int iommu_detected __read_mostly = 0;
-/* This tells the BIO block layer to assume merging. Default to off
- because we cannot guarantee merging later. */
-int iommu_bio_merge __read_mostly = 0;
-EXPORT_SYMBOL(iommu_bio_merge);
-
dma_addr_t bad_dma_address __read_mostly = 0;
EXPORT_SYMBOL(bad_dma_address);
@@ -189,7 +184,6 @@ static __init int iommu_setup(char *p)
}
if (!strncmp(p, "biomerge", 8)) {
- iommu_bio_merge = 4096;
iommu_merge = 1;
force_iommu = 1;
}