[PATCH 23/33] qlogicpti: sg chaining support

From: Jens Axboe
Date: Mon Jul 16 2007 - 05:54:42 EST


Cc: davem@xxxxxxxxxxxxx
Signed-off-by: Jens Axboe <jens.axboe@xxxxxxxxxx>
---
drivers/scsi/qlogicpti.c | 15 ++++++++-------
1 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c
index c4195ea..e36e6cd 100644
--- a/drivers/scsi/qlogicpti.c
+++ b/drivers/scsi/qlogicpti.c
@@ -868,7 +868,7 @@ static inline int load_cmd(struct scsi_cmnd *Cmnd, struct Command_Entry *cmd,
struct qlogicpti *qpti, u_int in_ptr, u_int out_ptr)
{
struct dataseg *ds;
- struct scatterlist *sg;
+ struct scatterlist *sg, *s;
int i, n;

if (Cmnd->use_sg) {
@@ -884,11 +884,12 @@ static inline int load_cmd(struct scsi_cmnd *Cmnd, struct Command_Entry *cmd,
n = sg_count;
if (n > 4)
n = 4;
- for (i = 0; i < n; i++, sg++) {
- ds[i].d_base = sg_dma_address(sg);
- ds[i].d_count = sg_dma_len(sg);
+ for_each_sg(sg, s, n, i) {
+ ds[i].d_base = sg_dma_address(s);
+ ds[i].d_count = sg_dma_len(g);
}
sg_count -= 4;
+ sg = s;
while (sg_count > 0) {
struct Continuation_Entry *cont;

@@ -907,9 +908,9 @@ static inline int load_cmd(struct scsi_cmnd *Cmnd, struct Command_Entry *cmd,
n = sg_count;
if (n > 7)
n = 7;
- for (i = 0; i < n; i++, sg++) {
- ds[i].d_base = sg_dma_address(sg);
- ds[i].d_count = sg_dma_len(sg);
+ for_each_sg(sg, s, n, i) {
+ ds[i].d_base = sg_dma_address(s);
+ ds[i].d_count = sg_dma_len(s);
}
sg_count -= n;
}
--
1.5.3.rc0.90.gbaa79

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