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mmc: remove redundant irq disabling 

There is no need to disable irq's when using the sg_copy_*_buffer()
functions because those functions do that already. There are also
no races for the mm_queue struct here that would require the irq's
to be disabled before calling sg_copy_*_buffer().

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
John Ogness 2011-03-25 09:47:37 +01:00 committed by Chris Ball
parent 41e2a48935
commit 0b38c4ebf0
1 changed files with 0 additions and 8 deletions
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8
drivers/mmc/card/queue.c
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@ -343,18 +343,14 @@ unsigned int mmc_queue_map_sg(struct mmc_queue *mq)
*/ */
void mmc_queue_bounce_pre(struct mmc_queue *mq) void mmc_queue_bounce_pre(struct mmc_queue *mq)
{ {
unsigned long flags;
if (!mq->bounce_buf) if (!mq->bounce_buf)
return; return;
if (rq_data_dir(mq->req) != WRITE) if (rq_data_dir(mq->req) != WRITE)
return; return;
local_irq_save(flags);
sg_copy_to_buffer(mq->bounce_sg, mq->bounce_sg_len, sg_copy_to_buffer(mq->bounce_sg, mq->bounce_sg_len,
mq->bounce_buf, mq->sg[0].length); mq->bounce_buf, mq->sg[0].length);
local_irq_restore(flags);
} }
/* /*
@ -363,17 +359,13 @@ void mmc_queue_bounce_pre(struct mmc_queue *mq)
*/ */
void mmc_queue_bounce_post(struct mmc_queue *mq) void mmc_queue_bounce_post(struct mmc_queue *mq)
{ {
unsigned long flags;
if (!mq->bounce_buf) if (!mq->bounce_buf)
return; return;
if (rq_data_dir(mq->req) != READ) if (rq_data_dir(mq->req) != READ)
return; return;
local_irq_save(flags);
sg_copy_from_buffer(mq->bounce_sg, mq->bounce_sg_len, sg_copy_from_buffer(mq->bounce_sg, mq->bounce_sg_len,
mq->bounce_buf, mq->sg[0].length); mq->bounce_buf, mq->sg[0].length);
local_irq_restore(flags);
} }