linux-kernel - [PATCH 02/11] Disable initialized

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Date:	Mon, 30 Sep 2013 13:29:03 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	linux-kernel@...r.kernel.org
Cc:	Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH 02/11] Disable initialized_var for clang

From: Andi Kleen <ak@...ux.intel.com>

LLVM clang doesn't understand uninitialized_var and always throws a
warning. Disable the macro for this case.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
 include/linux/compiler-gcc.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 24545cd..fa93722 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -110,6 +110,10 @@
  * A trick to suppress uninitialized variable warning without generating any
  * code
  */
+#ifdef __clang__
+#define uninitialized_var(x) x
+#else
 #define uninitialized_var(x) x = x
+#endif
 
 #define __always_inline		inline __attribute__((always_inline))
-- 
1.8.3.1

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