From: Eric Sesterhenn <snakebyte@gmx.de>
Date: Tue, 17 Jan 2006 23:36:05 +0000 (-0800)
Subject: [SPARC]: change if() BUG(); to BUG_ON in iommu.c
X-Git-Tag: v2.6.16-rc2~368^2~2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1ae613883468eab2fb8a077aad9fdedfbfa73d1b;p=linux-2.6

[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>
---

diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c
index 489bf68d5f..77840c8047 100644
--- a/arch/sparc/mm/iommu.c
+++ b/arch/sparc/mm/iommu.c
@@ -295,8 +295,7 @@ static void iommu_release_one(u32 busa, int npages, struct sbus_bus *sbus)
 	int ioptex;
 	int i;
 
-	if (busa < iommu->start)
-		BUG();
+	BUG_ON(busa < iommu->start);
 	ioptex = (busa - iommu->start) >> PAGE_SHIFT;
 	for (i = 0; i < npages; i++) {
 		iopte_val(iommu->page_table[ioptex + i]) = 0;
@@ -340,9 +339,9 @@ static int iommu_map_dma_area(dma_addr_t *pba, unsigned long va,
 	iopte_t *first;
 	int ioptex;
 
-	if ((va & ~PAGE_MASK) != 0) BUG();
-	if ((addr & ~PAGE_MASK) != 0) BUG();
-	if ((len & ~PAGE_MASK) != 0) BUG();
+	BUG_ON((va & ~PAGE_MASK) != 0);
+	BUG_ON((addr & ~PAGE_MASK) != 0);
+	BUG_ON((len & ~PAGE_MASK) != 0);
 
 	/* page color = physical address */
 	ioptex = bit_map_string_get(&iommu->usemap, len >> PAGE_SHIFT,
@@ -405,8 +404,8 @@ static void iommu_unmap_dma_area(unsigned long busa, int len)
 	unsigned long end;
 	int ioptex = (busa - iommu->start) >> PAGE_SHIFT;
 
-	if ((busa & ~PAGE_MASK) != 0) BUG();
-	if ((len & ~PAGE_MASK) != 0) BUG();
+	BUG_ON((busa & ~PAGE_MASK) != 0);
+	BUG_ON((len & ~PAGE_MASK) != 0);
 
 	iopte += ioptex;
 	end = busa + len;