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memstick: mark expected switch fall-throughs

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

This patch fixes the following warnings:

drivers/memstick/host/jmb38x_ms.c: In function ‘jmb38x_ms_write_data’:
drivers/memstick/host/jmb38x_ms.c:261:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
   host->io_pos++;
   ~~~~~~~~~~~~^~
drivers/memstick/host/jmb38x_ms.c:262:2: note: here
  case 2:
  ^~~~
drivers/memstick/host/jmb38x_ms.c:264:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
   host->io_pos++;
   ~~~~~~~~~~~~^~
drivers/memstick/host/jmb38x_ms.c:265:2: note: here
  case 1:
  ^~~~
drivers/memstick/host/tifm_ms.c: In function ‘tifm_ms_write_data’:
drivers/memstick/host/tifm_ms.c:168:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
   host->io_pos++;
   ~~~~~~~~~~~~^~
drivers/memstick/host/tifm_ms.c:169:2: note: here
  case 2:
  ^~~~
drivers/memstick/host/tifm_ms.c:171:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
   host->io_pos++;
   ~~~~~~~~~~~~^~
drivers/memstick/host/tifm_ms.c:172:2: note: here
  case 1:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
This commit is contained in:
Gustavo A. R. Silva 2019-02-12 20:54:56 -06:00
parent 322b38ce3d
commit ccaa75187a
2 changed files with 4 additions and 0 deletions
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2
drivers/memstick/host/jmb38x_ms.c
View File

@ -259,9 +259,11 @@ static unsigned int jmb38x_ms_write_data(struct jmb38x_ms_host *host,
case 3:
host->io_word[0] |= buf[off + 2] << 16;
host->io_pos++;
/* fall through */
case 2:
host->io_word[0] |= buf[off + 1] << 8;
host->io_pos++;
/* fall through */
case 1:
host->io_word[0] |= buf[off];
host->io_pos++;

2
drivers/memstick/host/tifm_ms.c
View File

@ -166,9 +166,11 @@ static unsigned int tifm_ms_write_data(struct tifm_ms *host,
case 3:
host->io_word |= buf[off + 2] << 16;
host->io_pos++;
/* fall through */
case 2:
host->io_word |= buf[off + 1] << 8;
host->io_pos++;
/* fall through */
case 1:
host->io_word |= buf[off];
host->io_pos++;