From: Arnd Bergmann <arnd@arndb.de>
To: behanw@converseincode.com
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
dwmw2@infradead.org, pageexec@freemail.hu,
Mark Charlebois <charlebm@gmail.com>
Subject: Re: [PATCH] LLVMLinux: Remove warning about returning an uninitialized variable
Date: Sat, 22 Mar 2014 11:01:16 +0100 [thread overview]
Message-ID: <201403221101.16961.arnd@arndb.de> (raw)
In-Reply-To: <1395470329-15065-1-git-send-email-behanw@converseincode.com>
On Saturday 22 March 2014, behanw@converseincode.com wrote:
> diff --git a/include/asm-generic/cmpxchg-local.h b/include/asm-generic/cmpxchg-local.h
> index d8d4c89..4c41bb8 100644
> --- a/include/asm-generic/cmpxchg-local.h
> +++ b/include/asm-generic/cmpxchg-local.h
> @@ -41,6 +41,7 @@ static inline unsigned long __cmpxchg_local_generic(volatile void *ptr,
> break;
> default:
> wrong_size_cmpxchg(ptr);
> + prev = 0;
> }
> raw_local_irq_restore(flags);
> return prev;
How about using __unreachable() instead to annotate the fact that you won't
get here?
Arnd
next prev parent reply other threads:[~2014-03-22 10:01 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-22 6:38 behanw
2014-03-22 10:01 ` Arnd Bergmann [this message]
2014-03-22 15:45 ` Behan Webster
2014-03-22 15:48 ` [PATCH v2] " behanw
2014-03-22 16:21 ` Sam Ravnborg
2014-03-22 16:31 ` Behan Webster
2014-03-22 16:35 ` [PATCH v3] " behanw
2014-03-22 16:29 ` [PATCH v2] " James Bottomley
2014-03-22 16:37 ` Behan Webster
2014-03-22 16:42 ` James Bottomley
2014-03-23 6:32 ` Behan Webster
2014-03-24 5:53 ` [PATCH v4] " behanw
2014-03-25 17:16 ` Arnd Bergmann
2014-03-24 9:46 ` David Howells
2014-03-31 20:52 ` [PATCH] " H. Peter Anvin
2014-03-31 22:10 ` Behan Webster
2014-03-31 22:11 ` H. Peter Anvin
2014-03-31 22:16 ` Behan Webster
2014-03-31 22:19 ` H. Peter Anvin
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