linux-hardening - [PATCH v2][next] ubi: Fix fall-through warnings for Clang

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Message-ID: <20210305081616.GA136956@embeddedor>
Date:   Fri, 5 Mar 2021 02:16:16 -0600
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Richard Weinberger <richard@....at>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Vignesh Raghavendra <vigneshr@...com>
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        linux-hardening@...r.kernel.org
Subject: [PATCH v2][next] ubi: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
by explicitly adding a fallthrough pseudo-keyword instead of letting the
code fall through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
Changes in v2:
 Make use of a break statement instead of fallthrough, for consistency.
 Link: https://lore.kernel.org/lkml/20201123093347.719a77cf@xps13/

 drivers/mtd/ubi/build.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index f399edc82191..a7e3eb9befb6 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -1350,6 +1350,7 @@ static int bytes_str_to_int(const char *str)
 		fallthrough;
 	case 'K':
 		result *= 1024;
+		break;
 	case '\0':
 		break;
 	default:
-- 
2.27.0