ARM: OMAP: dma: Mark expected switch fall-throughs
authorGustavo A. R. Silva <gustavo@embeddedor.com>
Sun, 28 Jul 2019 23:19:41 +0000 (18:19 -0500)
committerGustavo A. R. Silva <gustavo@embeddedor.com>
Sat, 10 Aug 2019 00:45:41 +0000 (19:45 -0500)
commit3da6bd945b71c5fdd5db7b19224b8fc0b4d78ed8
treebb3bc577d547bb19e0645198855c0700f275eac4
parente7c0c9f6028dfa09ea9f20c5f1d387e5858afede
ARM: OMAP: dma: Mark expected switch fall-throughs

Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings:

arch/arm/plat-omap/dma.c: In function 'omap_set_dma_src_burst_mode':
arch/arm/plat-omap/dma.c:384:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (dma_omap2plus()) {
      ^
arch/arm/plat-omap/dma.c:393:2: note: here
  case OMAP_DMA_DATA_BURST_16:
  ^~~~
arch/arm/plat-omap/dma.c:394:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (dma_omap2plus()) {
      ^
arch/arm/plat-omap/dma.c:402:2: note: here
  default:
  ^~~~~~~
arch/arm/plat-omap/dma.c: In function 'omap_set_dma_dest_burst_mode':
arch/arm/plat-omap/dma.c:473:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (dma_omap2plus()) {
      ^
arch/arm/plat-omap/dma.c:481:2: note: here
  default:
  ^~~~~~~

Notice that, in this particular case, the code comment is
modified in accordance with what GCC is expecting to find.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
arch/arm/plat-omap/dma.c