linux-kernel - [PATCH] pinctrl: lpc18xx: mark expected switch fall-throughs

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Date:   Wed, 15 Aug 2018 12:10:35 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Joachim Eastwood <manabian@...il.com>
Cc:     linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] pinctrl: lpc18xx: mark expected switch fall-throughs

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

Addresses-Coverity-ID: 1292308 ("Missing break in switch")
Addresses-Coverity-ID: 1292309 ("Missing break in switch")
Addresses-Coverity-ID: 1309546 ("Missing break in switch")
Addresses-Coverity-ID: 1357369 ("Missing break in switch")
Addresses-Coverity-ID: 1357389 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
 drivers/pinctrl/pinctrl-lpc18xx.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-lpc18xx.c b/drivers/pinctrl/pinctrl-lpc18xx.c
index 190f17e..a14bc5e 100644
--- a/drivers/pinctrl/pinctrl-lpc18xx.c
+++ b/drivers/pinctrl/pinctrl-lpc18xx.c
@@ -844,8 +844,11 @@ static int lpc18xx_pconf_get_pin(struct pinctrl_dev *pctldev, unsigned param,
 		*arg = (reg & LPC18XX_SCU_PIN_EHD_MASK) >> LPC18XX_SCU_PIN_EHD_POS;
 		switch (*arg) {
 		case 3: *arg += 5;
+			/* fall through */
 		case 2: *arg += 5;
+			/* fall through */
 		case 1: *arg += 3;
+			/* fall through */
 		case 0: *arg += 4;
 		}
 		break;
@@ -1060,8 +1063,11 @@ static int lpc18xx_pconf_set_pin(struct pinctrl_dev *pctldev, unsigned param,
 
 		switch (param_val) {
 		case 20: param_val -= 5;
+			 /* fall through */
 		case 14: param_val -= 5;
+			 /* fall through */
 		case  8: param_val -= 3;
+			 /* fall through */
 		case  4: param_val -= 4;
 			 break;
 		default:
-- 
2.7.4