linux-kernel - Re: [PATCH] remove untouched code in kfifo

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Message-Id: <20121022165602.41c4953e.akpm@linux-foundation.org>
Date:	Mon, 22 Oct 2012 16:56:02 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Stefani Seibold <stefani@...bold.net>,
	richard -rw- weinberger <richard.weinberger@...il.com>,
	Wei Yang <weiyang@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] remove untouched code in kfifo_in

On Fri, 19 Oct 2012 09:34:43 +0200 (CEST)
Jiri Kosina <jkosina@...e.cz> wrote:

> On Fri, 19 Oct 2012, Stefani Seibold wrote:
> 
> > > > In kfifo_in marco, one piece of code is arounded by if(0). This code in
> > > > introduced by Stefani Seibold <stefani@...bold.net> to suppress a compiler
> > > > warning. This warning is not there with the upgrade of gcc version.
> > > >
> > > > This patch just remove this code.
> > > 
> > > Are you sure?
> > > This code fragment looks like a compiler bomb to detect type mismatch to me...
> > 
> > Yes, you are great! That was the reason why i made this peace of code.
> > So don't remove it!
> 
> As even you, the author of the code, got confused by it for a while, 
> adding an explanatory comment seems appropriate.
> 

include/linux/typecheck.h?
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