In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through.
This patch fixes the following warnings: drivers/mtd/chips/cfi_util.c: In function ‘cfi_build_cmd’: drivers/mtd/chips/cfi_util.c:110:10: warning: this statement may fall through [-Wimplicit-fallthrough=] onecmd |= (onecmd << (chip_mode * 32)); ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/mtd/chips/cfi_util.c:112:2: note: here case 4: ^~~~ drivers/mtd/chips/cfi_util.c:113:10: warning: this statement may fall through [-Wimplicit-fallthrough=] onecmd |= (onecmd << (chip_mode * 16)); ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/mtd/chips/cfi_util.c:114:2: note: here case 2: ^~~~ drivers/mtd/chips/cfi_util.c: In function ‘cfi_merge_status’: drivers/mtd/chips/cfi_util.c:163:7: warning: this statement may fall through [-Wimplicit-fallthrough=] res |= (onestat >> (chip_mode * 32)); ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/mtd/chips/cfi_util.c:165:2: note: here case 4: ^~~~ drivers/mtd/chips/cfi_util.c:166:7: warning: this statement may fall through [-Wimplicit-fallthrough=] res |= (onestat >> (chip_mode * 16)); ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/mtd/chips/cfi_util.c:167:2: note: here case 2: ^~~~ 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 <[email protected]> --- drivers/mtd/chips/cfi_util.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/mtd/chips/cfi_util.c b/drivers/mtd/chips/cfi_util.c index 6f16552cd59f..e3b266ee06af 100644 --- a/drivers/mtd/chips/cfi_util.c +++ b/drivers/mtd/chips/cfi_util.c @@ -109,10 +109,13 @@ map_word cfi_build_cmd(u_long cmd, struct map_info *map, struct cfi_private *cfi case 8: onecmd |= (onecmd << (chip_mode * 32)); #endif + /* fall through */ case 4: onecmd |= (onecmd << (chip_mode * 16)); + /* fall through */ case 2: onecmd |= (onecmd << (chip_mode * 8)); + /* fall through */ case 1: ; } @@ -162,10 +165,13 @@ unsigned long cfi_merge_status(map_word val, struct map_info *map, case 8: res |= (onestat >> (chip_mode * 32)); #endif + /* fall through */ case 4: res |= (onestat >> (chip_mode * 16)); + /* fall through */ case 2: res |= (onestat >> (chip_mode * 8)); + /* fall through */ case 1: ; } -- 2.20.1
