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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 10:09:16 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 10:09:16 -0700
commit92d15c2ccbb3e31a3fc71ad28fdb55e1319383c0 (patch)
tree8d83c0dc3c6b935d8367e331872f242b742f0a8a /drivers/scsi/aha1542.c
parentf20bf6125605acbbc7eb8c9420d7221c91aa83eb (diff)
parent644bd2f048972d75eb1979b1fdca257d528ce687 (diff)
Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block: (63 commits) Fix memory leak in dm-crypt SPARC64: sg chaining support SPARC: sg chaining support PPC: sg chaining support PS3: sg chaining support IA64: sg chaining support x86-64: enable sg chaining x86-64: update pci-gart iommu to sg helpers x86-64: update nommu to sg helpers x86-64: update calgary iommu to sg helpers swiotlb: sg chaining support i386: enable sg chaining i386 dma_map_sg: convert to using sg helpers mmc: need to zero sglist on init Panic in blk_rq_map_sg() from CCISS driver remove sglist_len remove blk_queue_max_phys_segments in libata revert sg segment size ifdefs Fixup u14-34f ENABLE_SG_CHAINING qla1280: enable use_sg_chaining option ...
Diffstat (limited to 'drivers/scsi/aha1542.c')
-rw-r--r--drivers/scsi/aha1542.c32
1 files changed, 15 insertions, 17 deletions
diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c
index cbbfbc9f3e0..961a1882cb7 100644
--- a/drivers/scsi/aha1542.c
+++ b/drivers/scsi/aha1542.c
@@ -61,15 +61,15 @@ static void BAD_DMA(void *address, unsigned int length)
}
static void BAD_SG_DMA(Scsi_Cmnd * SCpnt,
- struct scatterlist *sgpnt,
+ struct scatterlist *sgp,
int nseg,
int badseg)
{
printk(KERN_CRIT "sgpnt[%d:%d] page %p/0x%llx length %u\n",
badseg, nseg,
- page_address(sgpnt[badseg].page) + sgpnt[badseg].offset,
- (unsigned long long)SCSI_SG_PA(&sgpnt[badseg]),
- sgpnt[badseg].length);
+ page_address(sgp->page) + sgp->offset,
+ (unsigned long long)SCSI_SG_PA(sgp),
+ sgp->length);
/*
* Not safe to continue.
@@ -691,7 +691,7 @@ static int aha1542_queuecommand(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
memcpy(ccb[mbo].cdb, cmd, ccb[mbo].cdblen);
if (SCpnt->use_sg) {
- struct scatterlist *sgpnt;
+ struct scatterlist *sg;
struct chain *cptr;
#ifdef DEBUG
unsigned char *ptr;
@@ -699,23 +699,21 @@ static int aha1542_queuecommand(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
int i;
ccb[mbo].op = 2; /* SCSI Initiator Command w/scatter-gather */
SCpnt->host_scribble = kmalloc(512, GFP_KERNEL | GFP_DMA);
- sgpnt = (struct scatterlist *) SCpnt->request_buffer;
cptr = (struct chain *) SCpnt->host_scribble;
if (cptr == NULL) {
/* free the claimed mailbox slot */
HOSTDATA(SCpnt->device->host)->SCint[mbo] = NULL;
return SCSI_MLQUEUE_HOST_BUSY;
}
- for (i = 0; i < SCpnt->use_sg; i++) {
- if (sgpnt[i].length == 0 || SCpnt->use_sg > 16 ||
- (((int) sgpnt[i].offset) & 1) || (sgpnt[i].length & 1)) {
+ scsi_for_each_sg(SCpnt, sg, SCpnt->use_sg, i) {
+ if (sg->length == 0 || SCpnt->use_sg > 16 ||
+ (((int) sg->offset) & 1) || (sg->length & 1)) {
unsigned char *ptr;
printk(KERN_CRIT "Bad segment list supplied to aha1542.c (%d, %d)\n", SCpnt->use_sg, i);
- for (i = 0; i < SCpnt->use_sg; i++) {
+ scsi_for_each_sg(SCpnt, sg, SCpnt->use_sg, i) {
printk(KERN_CRIT "%d: %p %d\n", i,
- (page_address(sgpnt[i].page) +
- sgpnt[i].offset),
- sgpnt[i].length);
+ (page_address(sg->page) +
+ sg->offset), sg->length);
};
printk(KERN_CRIT "cptr %x: ", (unsigned int) cptr);
ptr = (unsigned char *) &cptr[i];
@@ -723,10 +721,10 @@ static int aha1542_queuecommand(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
printk("%02x ", ptr[i]);
panic("Foooooooood fight!");
};
- any2scsi(cptr[i].dataptr, SCSI_SG_PA(&sgpnt[i]));
- if (SCSI_SG_PA(&sgpnt[i]) + sgpnt[i].length - 1 > ISA_DMA_THRESHOLD)
- BAD_SG_DMA(SCpnt, sgpnt, SCpnt->use_sg, i);
- any2scsi(cptr[i].datalen, sgpnt[i].length);
+ any2scsi(cptr[i].dataptr, SCSI_SG_PA(sg));
+ if (SCSI_SG_PA(sg) + sg->length - 1 > ISA_DMA_THRESHOLD)
+ BAD_SG_DMA(SCpnt, sg, SCpnt->use_sg, i);
+ any2scsi(cptr[i].datalen, sg->length);
};
any2scsi(ccb[mbo].datalen, SCpnt->use_sg * sizeof(struct chain));
any2scsi(ccb[mbo].dataptr, SCSI_BUF_PA(cptr));