diff options
| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2008-03-09 13:44:36 +0900 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-04-07 12:15:46 -0500 |
| commit | e943752ecf0ce41cdf949d565140d91c7711dfd9 (patch) | |
| tree | f4c3b4326578d2600a5328a127da13224be6670e /drivers/scsi/3w-xxxx.c | |
| parent | 31fe47d4374eb29d914333aa26bcb7ca9f1545f3 (diff) | |
| download | lwn-e943752ecf0ce41cdf949d565140d91c7711dfd9.tar.gz lwn-e943752ecf0ce41cdf949d565140d91c7711dfd9.zip | |
[SCSI] 3w-xxxx: use sg buffer copy helper functions
This rewrites tw_transfer_internal with scsi_sg_copy_from/to_buffer.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Adam Radford <linuxraid@amcc.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/3w-xxxx.c')
| -rw-r--r-- | drivers/scsi/3w-xxxx.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index d09532162217..a2fc06022e10 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -1463,18 +1463,10 @@ static void tw_transfer_internal(TW_Device_Extension *tw_dev, int request_id, void *data, unsigned int len) { struct scsi_cmnd *cmd = tw_dev->srb[request_id]; - void *buf; - unsigned int transfer_len; - unsigned long flags = 0; - struct scatterlist *sg = scsi_sglist(cmd); + unsigned long flags; local_irq_save(flags); - buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; - transfer_len = min(sg->length, len); - - memcpy(buf, data, transfer_len); - - kunmap_atomic(buf - sg->offset, KM_IRQ0); + scsi_sg_copy_from_buffer(cmd, data, len); local_irq_restore(flags); } |