[PATCH] remove superflous BUG_ON's in nommu and gart

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 <muli@il.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>

diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c
index 6d3e61b..16261a8 100644 (file)
--- a/arch/x86_64/kernel/pci-gart.c
+++ b/arch/x86_64/kernel/pci-gart.c
@@ -239,8 +239,6 @@ dma_addr_t gart_map_single(struct device *dev, void *addr, size_t size, int dir)
 {
        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, struct scatterlist *sg, int nents, int dir)
        unsigned long pages = 0;
        int need = 0, nextneed;
 
-       BUG_ON(dir == DMA_NONE);
        if (nents == 0) 
                return 0;
 

diff --git a/arch/x86_64/kernel/pci-nommu.c b/arch/x86_64/kernel/pci-nommu.c
index aad7609..df09ab0 100644 (file)
--- a/arch/x86_64/kernel/pci-nommu.c
+++ b/arch/x86_64/kernel/pci-nommu.c
@@ -59,7 +59,6 @@ int nommu_map_sg(struct device *hwdev, struct scatterlist *sg,
 {
        int i;
 
-       BUG_ON(direction == DMA_NONE);
        for (i = 0; i < nents; i++ ) {
                struct scatterlist *s = &sg[i];
                BUG_ON(!s->page);