linux-kernel - [PATCH] mmc: sdhci-s3c: Mark expected switch fall-through

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Date:   Sun, 28 Jul 2019 19:02:59 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Adrian Hunter <adrian.hunter@...el.com>,
        Ben Dooks <ben-linux@...ff.org>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Ulf Hansson <ulf.hansson@...aro.org>
Cc:     linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Kees Cook <keescook@...omium.org>
Subject: [PATCH] mmc: sdhci-s3c: Mark expected switch fall-through

Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/mmc/host/sdhci-s3c.c: In function 'sdhci_s3c_probe':
drivers/mmc/host/sdhci-s3c.c:613:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
   host->mmc->caps |= MMC_CAP_8_BIT_DATA;
drivers/mmc/host/sdhci-s3c.c:614:2: note: here
  case 4:
  ^~~~

Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
 drivers/mmc/host/sdhci-s3c.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 8e4a8ba33f05..cefa0fb8cfde 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -611,6 +611,7 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
 	switch (pdata->max_width) {
 	case 8:
 		host->mmc->caps |= MMC_CAP_8_BIT_DATA;
+		/* Fall through */
 	case 4:
 		host->mmc->caps |= MMC_CAP_4_BIT_DATA;
 		break;
-- 
2.22.0