linux-kernel - Re: [PATCH] afs: Mark expected switch fall-throughs

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Message-ID: <2695.1554802492@warthog.procyon.org.uk>
Date:   Tue, 09 Apr 2019 10:34:52 +0100
From:   David Howells <dhowells@...hat.com>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc:     dhowells@...hat.com, linux-afs@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Kees Cook <keescook@...gle.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH] afs: Mark expected switch fall-throughs

Gustavo A. R. Silva <gustavo@...eddedor.com> wrote:

Please fix the compiler so that you can annotate a switch-statement to say
that every case must fall through (except, perhaps, the last).

>  		/* extract the FID array and its count in two steps */
> +		/* fall through */
>  	case 1:

Capitialise "Fall" for consistency, please, and can you put the fall-through
marker *before* the comment introducing the case please?  It belongs to the
preceding section.

>  		/* extract the callback array and its count in two steps */
> +		/* fall through */
>  	case 3:

Ditto.

>  		/* extract the FID array and its count in two steps */
> +		/* Fall through */

Ditto on putting the fall-through before the introductory comment.

(And more dittos).

> -		/* Extract fsEndpoints[] entries */
> +		/* Fall through - and extract fsEndpoints[] entries */

And here you're doing something different yet again, though you could drop
either the "-" or the "and".

David