[SPARC]: change if() BUG(); to BUG_ON in iommu.c
this patch changes if() BUG(); constructs in iommu.c to BUG_ON(); so it gets save to define BUG() and BUG_ON() to nullstatements. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -295,8 +295,7 @@ static void iommu_release_one(u32 busa, int npages, struct sbus_bus *sbus)
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int ioptex;
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int i;
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if (busa < iommu->start)
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BUG();
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BUG_ON(busa < iommu->start);
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ioptex = (busa - iommu->start) >> PAGE_SHIFT;
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for (i = 0; i < npages; i++) {
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iopte_val(iommu->page_table[ioptex + i]) = 0;
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@ -340,9 +339,9 @@ static int iommu_map_dma_area(dma_addr_t *pba, unsigned long va,
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iopte_t *first;
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int ioptex;
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if ((va & ~PAGE_MASK) != 0) BUG();
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if ((addr & ~PAGE_MASK) != 0) BUG();
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if ((len & ~PAGE_MASK) != 0) BUG();
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BUG_ON((va & ~PAGE_MASK) != 0);
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BUG_ON((addr & ~PAGE_MASK) != 0);
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BUG_ON((len & ~PAGE_MASK) != 0);
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/* page color = physical address */
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ioptex = bit_map_string_get(&iommu->usemap, len >> PAGE_SHIFT,
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@ -405,8 +404,8 @@ static void iommu_unmap_dma_area(unsigned long busa, int len)
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unsigned long end;
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int ioptex = (busa - iommu->start) >> PAGE_SHIFT;
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if ((busa & ~PAGE_MASK) != 0) BUG();
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if ((len & ~PAGE_MASK) != 0) BUG();
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BUG_ON((busa & ~PAGE_MASK) != 0);
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BUG_ON((len & ~PAGE_MASK) != 0);
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iopte += ioptex;
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end = busa + len;
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