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authorRussell King - ARM Linux <linux@arm.linux.org.uk>2012-03-07 02:34:46 +0400
committerVinod Koul <vinod.koul@linux.intel.com>2012-03-13 10:06:52 +0400
commit884485e1f12dcd39390f042e772cdbefc9ebb750 (patch)
treea35fccb601c48ae1ea839aa6d62e4f102f7b66c3 /drivers/dma/iop-adma.c
parentd2ebfb335b0426deb1a4fb14e4e926d81ecd8235 (diff)
downloadlinux-884485e1f12dcd39390f042e772cdbefc9ebb750.tar.xz
dmaengine: consolidate assignment of DMA cookies
Everyone deals with assigning DMA cookies in the same way (it's part of the API so they should be), so lets consolidate the common code into a helper function to avoid this duplication. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> [imx-sdma.c & mxs-dma.c] Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/dma/iop-adma.c')
-rw-r--r--drivers/dma/iop-adma.c14
1 files changed, 1 insertions, 13 deletions
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index 650bf1e185e8..f2392d59568d 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -440,18 +440,6 @@ retry:
return NULL;
}
-static dma_cookie_t
-iop_desc_assign_cookie(struct iop_adma_chan *iop_chan,
- struct iop_adma_desc_slot *desc)
-{
- dma_cookie_t cookie = iop_chan->common.cookie;
- cookie++;
- if (cookie < 0)
- cookie = 1;
- iop_chan->common.cookie = desc->async_tx.cookie = cookie;
- return cookie;
-}
-
static void iop_adma_check_threshold(struct iop_adma_chan *iop_chan)
{
dev_dbg(iop_chan->device->common.dev, "pending: %d\n",
@@ -479,7 +467,7 @@ iop_adma_tx_submit(struct dma_async_tx_descriptor *tx)
slots_per_op = grp_start->slots_per_op;
spin_lock_bh(&iop_chan->lock);
- cookie = iop_desc_assign_cookie(iop_chan, sw_desc);
+ cookie = dma_cookie_assign(tx);
old_chain_tail = list_entry(iop_chan->chain.prev,
struct iop_adma_desc_slot, chain_node);