提交 ed896ddf 编写于 作者: N Nathan Chancellor 提交者: Greg Kroah-Hartman

mtd: rawnand: sh_flctl: Use proper enum for flctl_dma_fifo0_transfer

[ Upstream commit e2bfa4ca23d9b5a7bdfcf21319fad9b59e38a05c ]

Clang warns when one enumerated type is converted implicitly to another:

drivers/mtd/nand/raw/sh_flctl.c:483:46: warning: implicit conversion
from enumeration type 'enum dma_transfer_direction' to different
enumeration type 'enum dma_data_direction' [-Wenum-conversion]
                flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_DEV_TO_MEM) > 0)
                ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~
drivers/mtd/nand/raw/sh_flctl.c:542:46: warning: implicit conversion
from enumeration type 'enum dma_transfer_direction' to different
enumeration type 'enum dma_data_direction' [-Wenum-conversion]
                flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_MEM_TO_DEV) > 0)
                ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~
2 warnings generated.

Use the proper enums from dma_data_direction to satisfy Clang.

DMA_MEM_TO_DEV = DMA_TO_DEVICE = 1
DMA_DEV_TO_MEM = DMA_FROM_DEVICE = 2
Reported-by: NNick Desaulniers <ndesaulniers@google.com>
Signed-off-by: NNathan Chancellor <natechancellor@gmail.com>
Reviewed-by: NNick Desaulniers <ndesaulniers@google.com>
Signed-off-by: NMiquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>
上级 83cda9ea
......@@ -480,7 +480,7 @@ static void read_fiforeg(struct sh_flctl *flctl, int rlen, int offset)
/* initiate DMA transfer */
if (flctl->chan_fifo0_rx && rlen >= 32 &&
flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_DEV_TO_MEM) > 0)
flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_FROM_DEVICE) > 0)
goto convert; /* DMA success */
/* do polling transfer */
......@@ -539,7 +539,7 @@ static void write_ec_fiforeg(struct sh_flctl *flctl, int rlen,
/* initiate DMA transfer */
if (flctl->chan_fifo0_tx && rlen >= 32 &&
flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_MEM_TO_DEV) > 0)
flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_TO_DEVICE) > 0)
return; /* DMA success */
/* do polling transfer */
......
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