remove superflous BUG_ON's in nommu and gart From: Muli Ben-Yehuda There's no need to check for invalid DMA data direction in nommu and gart since we do it in dma-mapping.h anyway before calling the individual dma-ops. Signed-off-by: Muli Ben-Yehuda Signed-off-by: Andi Kleen --- arch/x86_64/kernel/pci-gart.c | 3 --- arch/x86_64/kernel/pci-nommu.c | 1 - 2 files changed, 4 deletions(-) Index: linux/arch/x86_64/kernel/pci-gart.c =================================================================== --- linux.orig/arch/x86_64/kernel/pci-gart.c +++ linux/arch/x86_64/kernel/pci-gart.c @@ -239,8 +239,6 @@ dma_addr_t gart_map_single(struct device { unsigned long phys_mem, bus; - BUG_ON(dir == DMA_NONE); - if (!dev) dev = &fallback_dev; @@ -383,7 +381,6 @@ int gart_map_sg(struct device *dev, stru unsigned long pages = 0; int need = 0, nextneed; - BUG_ON(dir == DMA_NONE); if (nents == 0) return 0; Index: linux/arch/x86_64/kernel/pci-nommu.c =================================================================== --- linux.orig/arch/x86_64/kernel/pci-nommu.c +++ linux/arch/x86_64/kernel/pci-nommu.c @@ -59,7 +59,6 @@ int nommu_map_sg(struct device *hwdev, s { int i; - BUG_ON(direction == DMA_NONE); for (i = 0; i < nents; i++ ) { struct scatterlist *s = &sg[i]; BUG_ON(!s->page);