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 v4] LLVMLinux: Remove warning about returning an uninitialized variable
Date: Sun, 23 Mar 2014 22:53:24 -0700 [thread overview]
Message-ID: <1395640404-27958-1-git-send-email-behanw@converseincode.com> (raw)
In-Reply-To: <1395506558.2143.18.camel@dabdike.int.hansenpartnership.com>
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 | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/asm-generic/cmpxchg-local.h b/include/asm-generic/cmpxchg-local.h
index d8d4c89..70bef78 100644
--- a/include/asm-generic/cmpxchg-local.h
+++ b/include/asm-generic/cmpxchg-local.h
@@ -4,7 +4,8 @@
#include <linux/types.h>
#include <linux/irqflags.h>
-extern unsigned long wrong_size_cmpxchg(volatile void *ptr);
+extern unsigned long wrong_size_cmpxchg(volatile void *ptr)
+ __noreturn;
/*
* Generic version of __cmpxchg_local (disables interrupts). Takes an unsigned
--
1.8.3.2
next prev parent reply other threads:[~2014-03-24 5:53 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 ` [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 ` behanw [this message]
2014-03-25 17:16 ` [PATCH v4] " 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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