[PATCH] mtd: lpddr_cmds: Mark expected switch fall-through

["Gustavo A. R. Silva" <gustavo@xxxxxxxxxxxxxx>]

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

This patch fixes the following warnings:

drivers/mtd/lpddr/lpddr_cmds.c: In function ‘chip_ready’:
drivers/mtd/lpddr/lpddr_cmds.c:319:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (mode == FL_READY && chip->oldstate == FL_READY)
      ^
drivers/mtd/lpddr/lpddr_cmds.c:322:2: note: here
  default:
  ^~~~~~~

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

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

Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
---
 drivers/mtd/lpddr/lpddr_cmds.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c
index b13557fe52bd..76a4c73e100e 100644
--- a/drivers/mtd/lpddr/lpddr_cmds.c
+++ b/drivers/mtd/lpddr/lpddr_cmds.c
@@ -318,6 +318,7 @@ static int chip_ready(struct map_info *map, struct flchip *chip, int mode)
 		/* Only if there's no operation suspended... */
 		if (mode == FL_READY && chip->oldstate == FL_READY)
 			return 0;
+		/* fall through */
 
 	default:
 sleep:
-- 
2.20.1


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