提交 36a52920 编写于 作者: F FUJITA Tomonori 提交者: James Bottomley

[SCSI] 3w-9xxx: remove unnecessary local_irq_save/restore for scsi sg copy API

Since the commit 50bed2e2 (sg: disable
interrupts inside sg_copy_buffer), no need to disable interrupts
before calling scsi_sg_copy_from_buffer. So we can simplify
twa_scsiop_execute_scsi_complete() a bit, which disables interrupts
just for scsi_sg_copy_from_buffer.
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: NAdam Radford <linuxraid@amcc.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
上级 0723d4a8
......@@ -1924,12 +1924,9 @@ static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int re
(cmd->sc_data_direction == DMA_FROM_DEVICE ||
cmd->sc_data_direction == DMA_BIDIRECTIONAL)) {
if (scsi_sg_count(cmd) == 1) {
unsigned long flags;
void *buf = tw_dev->generic_buffer_virt[request_id];
local_irq_save(flags);
scsi_sg_copy_from_buffer(cmd, buf, TW_SECTOR_SIZE);
local_irq_restore(flags);
}
}
} /* End twa_scsiop_execute_scsi_complete() */
......
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