dmaengine: nbpfaxi: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/dma/nbpfaxi.c b/drivers/dma/nbpfaxi.c
index 2f9974ddfbb2..8c7b2e8703da 100644
--- a/drivers/dma/nbpfaxi.c
+++ b/drivers/dma/nbpfaxi.c
@@ -479,6 +479,7 @@ static size_t nbpf_xfer_size(struct nbpf_device *nbpf,
 
         default:
                 pr_warn("%s(): invalid bus width %u\n", __func__, width);
+                /* fall through */
         case DMA_SLAVE_BUSWIDTH_1_BYTE:
                 size = burst;
         }