linux-kernel - Re: [PATCH] ide: mark expected switch fall-through

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Date:   Sun, 10 Mar 2019 11:13:51 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     gustavo@...eddedor.com
Cc:     linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
        keescook@...omium.org
Subject: Re: [PATCH] ide: mark expected switch fall-through

From: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Date: Mon, 11 Feb 2019 16:17:20 -0600

> In preparation to enabling -Wimplicit-fallthrough, mark switch
> cases where we are expecting to fall through.
> 
> This patch fixes the following warning:
> 
> drivers/ide/ide-floppy.c: In function ‘ide_floppy_get_capacity’:
> drivers/ide/ide-floppy.c:424:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE))
>        ^
> drivers/ide/ide-floppy.c:431:3: note: here
>    case CAPACITY_CURRENT:
>    ^~~~
> 
> Warning level 3 was used: -Wimplicit-fallthrough=3
> 
> Notice that, in this particular case, the code comment is modified
> in accordance with what GCC is expecting to find.
> 
> This patch is part of the ongoing efforts to enable
> -Wimplicit-fallthrough.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>

Applied.