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| author | Nathan Chancellor <natechancellor@gmail.com> | 2018-12-10 16:49:29 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-12-23 11:52:43 +0800 |
| commit | 9d880c5945c748d8edcac30965f3349a602158c4 (patch) | |
| tree | f97accfe465320c0b70335f95ffecc05f919dbc8 | |
| parent | 603f8c3b0dbbe21fabb7e005f57883b21aaadd82 (diff) | |
| download | linux-9d880c5945c748d8edcac30965f3349a602158c4.tar.bz2 | |
crypto: ux500 - Use proper enum in cryp_set_dma_transfer
Clang warns when one enumerated type is implicitly converted to another:
drivers/crypto/ux500/cryp/cryp_core.c:559:5: warning: implicit
conversion from enumeration type 'enum dma_data_direction' to different
enumeration type 'enum dma_transfer_direction' [-Wenum-conversion]
direction, DMA_CTRL_ACK);
^~~~~~~~~
drivers/crypto/ux500/cryp/cryp_core.c:583:5: warning: implicit
conversion from enumeration type 'enum dma_data_direction' to different
enumeration type 'enum dma_transfer_direction' [-Wenum-conversion]
direction,
^~~~~~~~~
2 warnings generated.
dmaengine_prep_slave_sg expects an enum from dma_transfer_direction.
Because we know the value of the dma_data_direction enum from the
switch statement, we can just use the proper value from
dma_transfer_direction so there is no more conversion.
DMA_TO_DEVICE = DMA_MEM_TO_DEV = 1
DMA_FROM_DEVICE = DMA_DEV_TO_MEM = 2
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/ux500/cryp/cryp_core.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/crypto/ux500/cryp/cryp_core.c b/drivers/crypto/ux500/cryp/cryp_core.c index d2663a4e1f5e..a92a66b1ff46 100644 --- a/drivers/crypto/ux500/cryp/cryp_core.c +++ b/drivers/crypto/ux500/cryp/cryp_core.c @@ -556,7 +556,7 @@ static int cryp_set_dma_transfer(struct cryp_ctx *ctx, desc = dmaengine_prep_slave_sg(channel, ctx->device->dma.sg_src, ctx->device->dma.sg_src_len, - direction, DMA_CTRL_ACK); + DMA_MEM_TO_DEV, DMA_CTRL_ACK); break; case DMA_FROM_DEVICE: @@ -580,7 +580,7 @@ static int cryp_set_dma_transfer(struct cryp_ctx *ctx, desc = dmaengine_prep_slave_sg(channel, ctx->device->dma.sg_dst, ctx->device->dma.sg_dst_len, - direction, + DMA_DEV_TO_MEM, DMA_CTRL_ACK | DMA_PREP_INTERRUPT); |