From: "J . A . Magallon" <jamagallon@able.es>
To: Peter Samuelson <peter@cadcamlab.org>
Cc: "J . A . Magallon" <jamagallon@able.es>,
linux-kernel <linux-kernel@vger.kernel.org>,
"Justin T . Gibbs" <gibbs@scsiguy.com>
Subject: Re: warning in 2.4.1pre10
Date: Thu, 25 Jan 2001 01:58:53 +0100 [thread overview]
Message-ID: <20010125015853.A2839@werewolf.able.es> (raw)
In-Reply-To: <20010125004454.C930@werewolf.able.es> <20010124184500.B6941@cadcamlab.org>
In-Reply-To: <20010124184500.B6941@cadcamlab.org>; from peter@cadcamlab.org on Thu, Jan 25, 2001 at 01:45:00 +0100
On 01.25 Peter Samuelson wrote:
>
> [J. A. Magallon]
> > It is harmless, 'cause the last sentence in the funtion is a panic,
> > but it is good to add the 'return 0', just to shut up the compiler.
>
> The correct fix is __attribute__((noreturn)) in the panic() prototype.
> As it happens, this has already been done....
>
I know Linux will never be compiled with any other thing than gcc. But
what I do not understand is why if there is a standard C way of doing
something you have to use an strange extension of gcc.
Same happens with 'return' and 'break'. You type the same to add a
'/* DO NOT REMEMBER THE PRECISE COMMENT */' to shut up the compiler
instead of just writing
case X:
...
return xxx;
break;
???
Size optimization for the couple of bytes of the jump in return or break ?
--
J.A. Magallon $> cd pub
mailto:jamagallon@able.es $> more beer
Linux werewolf 2.4.1-pre10 #4 SMP Wed Jan 24 00:20:15 CET 2001 i686
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next prev parent reply other threads:[~2001-01-25 0:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-24 23:44 warning in 2.4.1pre10 J . A . Magallon
2001-01-25 0:45 ` Peter Samuelson
2001-01-25 0:58 ` J . A . Magallon [this message]
2001-01-25 1:33 ` Peter Samuelson
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