linux-kernel - Re: [PATCH] omapfb: add one more "fallthrough" statement

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Message-ID: <YZPLpxGXVyaaKZsm@archlinux-ax161>
Date:   Tue, 16 Nov 2021 08:17:59 -0700
From:   Nathan Chancellor <nathan@...nel.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     linux-fbdev@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-omap@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH] omapfb: add one more "fallthrough" statement

On Tue, Nov 16, 2021 at 10:21:54AM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> clang warns about one missing fallthrough that gcc ignores:
> 
> drivers/video/fbdev/omap/omapfb_main.c:1558:2: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
> 
> Add it here as well.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Reviewed-by: Nathan Chancellor <nathan@...nel.org>

> ---
>  drivers/video/fbdev/omap/omapfb_main.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c
> index 3d090d2d9ed9..a6a8404d1462 100644
> --- a/drivers/video/fbdev/omap/omapfb_main.c
> +++ b/drivers/video/fbdev/omap/omapfb_main.c
> @@ -1555,6 +1555,7 @@ static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
>  	case 1:
>  		dev_set_drvdata(fbdev->dev, NULL);
>  		kfree(fbdev);
> +		fallthrough;
>  	case 0:
>  		/* nothing to free */
>  		break;
> -- 
> 2.29.2
>