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BUG_ON() Conversion in lib/swiotlb.c

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this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
This commit is contained in:
Eric Sesterhenn 2006-03-24 18:47:11 +01:00 committed by Adrian Bunk
parent 6978c7052f
commit 3481454589
1 changed files with 12 additions and 20 deletions
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32
lib/swiotlb.c
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@ -296,8 +296,7 @@ map_single(struct device *hwdev, char *buffer, size_t size, int dir)
else
stride = 1;
if (!nslots)
BUG();
BUG_ON(!nslots);
/*
* Find suitable number of IO TLB entries size that will fit this
@ -416,14 +415,14 @@ sync_single(struct device *hwdev, char *dma_addr, size_t size,
case SYNC_FOR_CPU:
if (likely(dir == DMA_FROM_DEVICE || dir == DMA_BIDIRECTIONAL))
memcpy(buffer, dma_addr, size);
else if (dir != DMA_TO_DEVICE)
BUG();
else
BUG_ON(dir != DMA_TO_DEVICE);
break;
case SYNC_FOR_DEVICE:
if (likely(dir == DMA_TO_DEVICE || dir == DMA_BIDIRECTIONAL))
memcpy(dma_addr, buffer, size);
else if (dir != DMA_FROM_DEVICE)
BUG();
else
BUG_ON(dir != DMA_FROM_DEVICE);
break;
default:
BUG();
@ -529,8 +528,7 @@ swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir)
unsigned long dev_addr = virt_to_phys(ptr);
void *map;
if (dir == DMA_NONE)
BUG();
BUG_ON(dir == DMA_NONE);
/*
* If the pointer passed in happens to be in the device's DMA window,
* we can safely return the device addr and not worry about bounce
@ -592,8 +590,7 @@ swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, size_t size,
{
char *dma_addr = phys_to_virt(dev_addr);
if (dir == DMA_NONE)
BUG();
BUG_ON(dir == DMA_NONE);
if (dma_addr >= io_tlb_start && dma_addr < io_tlb_end)
unmap_single(hwdev, dma_addr, size, dir);
else if (dir == DMA_FROM_DEVICE)
@ -616,8 +613,7 @@ swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr,
{
char *dma_addr = phys_to_virt(dev_addr);
if (dir == DMA_NONE)
BUG();
BUG_ON(dir == DMA_NONE);
if (dma_addr >= io_tlb_start && dma_addr < io_tlb_end)
sync_single(hwdev, dma_addr, size, dir, target);
else if (dir == DMA_FROM_DEVICE)
@ -648,8 +644,7 @@ swiotlb_sync_single_range(struct device *hwdev, dma_addr_t dev_addr,
{
char *dma_addr = phys_to_virt(dev_addr) + offset;
if (dir == DMA_NONE)
BUG();
BUG_ON(dir == DMA_NONE);
if (dma_addr >= io_tlb_start && dma_addr < io_tlb_end)
sync_single(hwdev, dma_addr, size, dir, target);
else if (dir == DMA_FROM_DEVICE)
@ -696,8 +691,7 @@ swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nelems,
unsigned long dev_addr;
int i;
if (dir == DMA_NONE)
BUG();
BUG_ON(dir == DMA_NONE);
for (i = 0; i < nelems; i++, sg++) {
addr = SG_ENT_VIRT_ADDRESS(sg);
@ -730,8 +724,7 @@ swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nelems,
{
int i;
if (dir == DMA_NONE)
BUG();
BUG_ON(dir == DMA_NONE);
for (i = 0; i < nelems; i++, sg++)
if (sg->dma_address != SG_ENT_PHYS_ADDRESS(sg))
@ -753,8 +746,7 @@ swiotlb_sync_sg(struct device *hwdev, struct scatterlist *sg,
{
int i;
if (dir == DMA_NONE)
BUG();
BUG_ON(dir == DMA_NONE);
for (i = 0; i < nelems; i++, sg++)
if (sg->dma_address != SG_ENT_PHYS_ADDRESS(sg))