dmaengine: mv_xor: remove write-only is_complete_cookie

mv_xor's is_complete_cookie is only ever written to, but never read.
This is silly, remove the write-only structure member.

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>

diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index e779b43..ad7d03f 100644 (file)
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -826,7 +826,6 @@ static enum dma_status mv_xor_status(struct dma_chan *chan,
 
        last_used = chan->cookie;
        last_complete = mv_chan->completed_cookie;
-       mv_chan->is_complete_cookie = cookie;
        dma_set_tx_state(txstate, last_complete, last_used, 0);
 
        ret = dma_async_is_complete(cookie, last_complete, last_used);

diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h
index 977b592..da04ac2 100644 (file)
--- a/drivers/dma/mv_xor.h
+++ b/drivers/dma/mv_xor.h
@@ -109,7 +109,6 @@ struct mv_xor_chan {
 #ifdef USE_TIMER
        unsigned long           cleanup_time;
        u32                     current_on_last_cleanup;
-       dma_cookie_t            is_complete_cookie;
 #endif
 };