0001-ARM-8158-1-LLVMLinux-use-static-inline-in-ARM-ftrace.patch

From acb57009042c4cfd4125f88a75a11209f4322189 Mon Sep 17 00:00:00 2001
From: Behan Webster <behanw@converseincode.com>
Date: Wed, 24 Sep 2014 01:06:46 +0100
Subject: [PATCH 1/2] ARM: 8158/1: LLVMLinux: use static inline in ARM ftrace.h

With compilers which follow the C99 standard (like modern versions of gcc and
clang), "extern inline" does the wrong thing (emits code for an externally
linkable version of the inline function). In this case using static inline
and removing the NULL version of return_address in return_address.c does
the right thing.

Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
(cherry picked from commit aeea3592a13bf12861943e44fc48f1f270941f8d)
---
 arch/arm/include/asm/ftrace.h    | 2 +-
 arch/arm/kernel/return_address.c | 5 -----
 2 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h
index f89515a..2bb8cac 100644
--- a/arch/arm/include/asm/ftrace.h
+++ b/arch/arm/include/asm/ftrace.h
@@ -45,7 +45,7 @@ void *return_address(unsigned int);
 
 #else
 
-extern inline void *return_address(unsigned int level)
+static inline void *return_address(unsigned int level)
 {
 	return NULL;
 }
diff --git a/arch/arm/kernel/return_address.c b/arch/arm/kernel/return_address.c
index fafedd8..f6aa84d 100644
--- a/arch/arm/kernel/return_address.c
+++ b/arch/arm/kernel/return_address.c
@@ -63,11 +63,6 @@ void *return_address(unsigned int level)
 #warning "TODO: return_address should use unwind tables"
 #endif
 
-void *return_address(unsigned int level)
-{
-	return NULL;
-}
-
 #endif /* if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) / else */
 
 EXPORT_SYMBOL_GPL(return_address);
-- 
2.1.4