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authorGustavo A. R. Silva <gustavo@embeddedor.com>2019-07-29 17:52:21 -0500
committerVinod Koul <vkoul@kernel.org>2019-07-31 20:49:04 +0530
commit7f5d7425748d1cc2dadb6966ec84363d3342b5a1 (patch)
tree2e395c3996f9498f2a818512d9142ae81254a0de /drivers/dma/imx-dma.c
parenta9afc9ea93995021f29025e62d83415a45c5f58b (diff)
dmaengine: imx-dma: Mark expected switch fall-through
Mark switch cases where we are expecting to fall through. This patch fixes the following warning (Building: arm): drivers/dma/imx-dma.c: In function ‘imxdma_xfer_desc’: drivers/dma/imx-dma.c:542:6: warning: this statement may fall through [-Wimplicit-fallthrough=] if (slot == IMX_DMA_2D_SLOT_A) { ^ drivers/dma/imx-dma.c:559:2: note: here case IMXDMA_DESC_MEMCPY: ^~~~ Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Link: https://lore.kernel.org/r/20190729225221.GA24269@embeddedor Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/imx-dma.c')
-rw-r--r--drivers/dma/imx-dma.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index 00a089e24150..5c0fb3134825 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -556,6 +556,7 @@ static int imxdma_xfer_desc(struct imxdma_desc *d)
* We fall-through here intentionally, since a 2D transfer is
* similar to MEMCPY just adding the 2D slot configuration.
*/
+ /* Fall through */
case IMXDMA_DESC_MEMCPY:
imx_dmav1_writel(imxdma, d->src, DMA_SAR(imxdmac->channel));
imx_dmav1_writel(imxdma, d->dest, DMA_DAR(imxdmac->channel));