linux-kernel - RE: [PATCH] net: sctp: Rename fallthrough label to unhandled

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Date:   Mon, 5 Aug 2019 11:49:12 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Joe Perches' <joe@...ches.com>,
        Neil Horman <nhorman@...driver.com>
CC:     Vlad Yasevich <vyasevich@...il.com>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        "linux-sctp@...r.kernel.org" <linux-sctp@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] net: sctp: Rename fallthrough label to unhandled

From: Joe Perches
> Sent: 01 August 2019 18:43
> On Thu, 2019-08-01 at 06:50 -0400, Neil Horman wrote:
> > On Wed, Jul 31, 2019 at 03:23:46PM -0700, Joe Perches wrote:
> []
> > You can say that if you want, but you made the point that your think the macro
> > as you have written is more readable.  You example illustrates though that /*
> > fallthrough */ is a pretty common comment, and not prefixing it makes it look
> > like someone didn't add a comment that they meant to.  The __ prefix is standard
> > practice for defining macros to attributes (212 instances of it by my count).  I
> > don't mind rewriting the goto labels at all, but I think consistency is
> > valuable.
> 
> Hey Neil.
> 
> Perhaps you want to make this argument on the RFC patch thread
> that introduces the fallthrough pseudo-keyword.
> 
> https://lore.kernel.org/patchwork/patch/1108577/

ISTM that the only place where you need something other than the
traditional comment is inside a #define where (almost certainly)
the comments have to get stripped too early.

Adding a 'fallthough' as unknown C keyword sucks...


	David

 

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