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Subject[PATCH 3/3] mtd: sh_flctl: remove unused variable and assignment
Date
Fixes a compile warning [-Wunused-but-set-variable] only.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
---

This fixes the compile time warning:
drivers/mtd/nand/sh_flctl.c: In function 'flctl_dma_fifo0_transfer':
drivers/mtd/nand/sh_flctl.c:354:15: warning: variable 'cookie' set but not
used [-Wunused-but-set-variable]

as dmaengine_submit only reads and returns desc->tx_submit(desc) which
is then unused in flctl_dma_fifo0_transfer, this should be side-effect
free to remove.

Patch was compile tested with ap325rxa_defconfig (implies
CONFIG_MTD_NAND_SH_FLCTL=y)

Patch is against 4.1-rc1 (localversion-next is -next-20150501)

drivers/mtd/nand/sh_flctl.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index b9f265a..6a5c4f7 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -351,7 +351,6 @@ static int flctl_dma_fifo0_transfer(struct sh_flctl *flctl, unsigned long *buf,
struct dma_chan *chan;
enum dma_transfer_direction tr_dir;
dma_addr_t dma_addr;
- dma_cookie_t cookie = -EINVAL;
uint32_t reg;
int ret;
unsigned long time_left;
@@ -377,7 +376,6 @@ static int flctl_dma_fifo0_transfer(struct sh_flctl *flctl, unsigned long *buf,

desc->callback = flctl_dma_complete;
desc->callback_param = flctl;
- cookie = dmaengine_submit(desc);

dma_async_issue_pending(chan);
} else {
--
1.7.10.4


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