On Tue, 2010-08-31 at 13:03 -0700, Hank Janssen wrote:
> On 09/01/2010 09:38 AM, Joe Perches wrote:
> > On Tue, 2010-08-31 at 11:13 -0700, Hank Janssen wrote:
> >> diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
> >> - request->DataBuffer.PfnArray[i] =
> >> - page_to_pfn(sg_page((&sgl[i])));
> >> + request->DataBuffer.PfnArray[i] =
> >> + page_to_pfn(sg_page((&sgl[i])));
> > I did a bit of a doubletake reading this last change.
> > This isn't actually a part of your fix and it introduces
> > a whitespace error.
> I will resubmit this patch and clean up the whitespace error.
>
> When change the code I normally also change the indentation to the
> correct format for that area of the code. That is how the whitespace
> snuck in there.
At least mention the whitespace change in the description
or perhaps use a different coding style for readability
that uses temporaries to avoid the split lines.
Something like:
drivers/staging/hv/storvsc_drv.c | 17 +++++++++--------
1 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index 075b61b..874891b 100644
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -611,6 +611,8 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd,
struct storvsc_driver_object *storvsc_drv_obj =
&storvsc_drv_ctx->drv_obj;
struct hv_storvsc_request *request;
+ struct hv_multipage_buffer *rmpb;
+ u64 *rmpba;
struct storvsc_cmd_request *cmd_request;
unsigned int request_size = 0;
int i;
@@ -693,8 +695,10 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd,
request->SenseBuffer = scmnd->sense_buffer;
request->SenseBufferSize = SCSI_SENSE_BUFFERSIZE;
+ rmpb = &request->DataBuffer;
+ rmpba = rmpb->PfnArray;
- request->DataBuffer.Length = scsi_bufflen(scmnd);
+ rmpb->Length = scsi_bufflen(scmnd);
if (scsi_sg_count(scmnd)) {
sgl = (struct scatterlist *)scsi_sglist(scmnd);
@@ -733,20 +737,17 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd,
sgl = cmd_request->bounce_sgl;
}
- request->DataBuffer.Offset = sgl[0].offset;
+ rmpb->Offset = sgl[0].offset;
for (i = 0; i < scsi_sg_count(scmnd); i++) {
DPRINT_DBG(STORVSC_DRV, "sgl[%d] len %d offset %d\n",
i, sgl[i].length, sgl[i].offset);
- request->DataBuffer.PfnArray[i] =
- page_to_pfn(sg_page((&sgl[i])));
+ *rmpba++ = page_to_pfn(sg_page((&sgl[i])));
}
} else if (scsi_sglist(scmnd)) {
/* ASSERT(scsi_bufflen(scmnd) <= PAGE_SIZE); */
- request->DataBuffer.Offset =
- virt_to_phys(scsi_sglist(scmnd)) & (PAGE_SIZE-1);
- request->DataBuffer.PfnArray[0] =
- virt_to_phys(scsi_sglist(scmnd)) >> PAGE_SHIFT;
+ rmpb->Offset = virt_to_phys(scsi_sglist(scmnd)) & (PAGE_SIZE-1);
+ *rmpba = virt_to_phys(scsi_sglist(scmnd)) >> PAGE_SHIFT;
}
retry_request:
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