PKGBUILDs/core/linux-veyron/0002-ARM-8158-1-LLVMLinux-use-static-inline-in-ARM-ftrace.patch

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2015-06-26 03:20:04 +00:00
From d67864066e8e53618dcd1bb06fe1069f73cecb2b Mon Sep 17 00:00:00 2001
From: Behan Webster <behanw@converseincode.com>
Date: Wed, 24 Sep 2014 01:06:46 +0100
Subject: [PATCH 2/5] 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>
---
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 39eb16b..bfe2a2f 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 a6012ac..618b99d 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);
--
2.4.3