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authorJohn Ogness <john.ogness@linutronix.de>2011-03-25 09:47:37 +0100
committerChris Ball <cjb@laptop.org>2011-05-25 02:59:17 +0200
commit0b38c4ebf037290eef27b31bdc37cacf804c7a48 (patch)
tree97a947537da85f161b2862d2d26221402d637194 /drivers
parentmmc: Ensure linux starts in eMMC user partition (diff)
downloadlinux-0b38c4ebf037290eef27b31bdc37cacf804c7a48.tar.xz
linux-0b38c4ebf037290eef27b31bdc37cacf804c7a48.zip
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/card/queue.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index 2ae727568df9..c07322c2658c 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -343,18 +343,14 @@ unsigned int mmc_queue_map_sg(struct mmc_queue *mq)
*/
void mmc_queue_bounce_pre(struct mmc_queue *mq)
{
- unsigned long flags;
-
if (!mq->bounce_buf)
return;
if (rq_data_dir(mq->req) != WRITE)
return;
- local_irq_save(flags);
sg_copy_to_buffer(mq->bounce_sg, mq->bounce_sg_len,
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)
{
- unsigned long flags;
-
if (!mq->bounce_buf)
return;
if (rq_data_dir(mq->req) != READ)
return;
- local_irq_save(flags);
sg_copy_from_buffer(mq->bounce_sg, mq->bounce_sg_len,
mq->bounce_buf, mq->sg[0].length);
- local_irq_restore(flags);
}