From: behanw@converseincode.com
To: arnd@arndb.de
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
dwmw2@infradead.org, pageexec@freemail.hu,
Behan Webster <behanw@converseincode.com>,
Mark Charlebois <charlebm@gmail.com>
Subject: [PATCH v3] LLVMLinux: Remove warning about returning an uninitialized variable
Date: Sat, 22 Mar 2014 09:35:36 -0700 [thread overview]
Message-ID: <1395506136-1621-1-git-send-email-behanw@converseincode.com> (raw)
In-Reply-To: <20140322162147.GA9034@ravnborg.org>
From: Behan Webster <behanw@converseincode.com>
Fix uninitialized return code in default case in cmpxchg-local.h
This patch fixes the code to prevent an uninitialized return value that is detected
when compiling with clang. The bug produces numerous warnings when compiling the
Linux kernel with clang.
Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
---
include/asm-generic/cmpxchg-local.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/asm-generic/cmpxchg-local.h b/include/asm-generic/cmpxchg-local.h
index d8d4c89..a4f5882 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);
+ unreachable();
}
raw_local_irq_restore(flags);
return prev;
--
1.8.3.2
next prev parent reply other threads:[~2014-03-22 16:35 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-22 6:38 [PATCH] " behanw
2014-03-22 10:01 ` Arnd Bergmann
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 ` behanw [this message]
2014-03-22 16:29 ` 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1395506136-1621-1-git-send-email-behanw@converseincode.com \
--to=behanw@converseincode.com \
--cc=arnd@arndb.de \
--cc=charlebm@gmail.com \
--cc=dwmw2@infradead.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=pageexec@freemail.hu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®