[PATCH 1/3] powerpc: Remove -mno-sched-epilog workaround

[Anton Blanchard]

We added -mno-sched-epilog in commit 7563dc645853 (powerpc:
Work around gcc's -fno-omit-frame-pointer bug).

We shouldn't apply -fno-omit-frame-pointer on powerpc any more (it's
protected by CONFIG_FRAME_POINTER and CONFIG_SCHED_OMIT_FRAME_POINTER).

It's also an undocumented gcc option, so lets remove it.

Signed-off-by: Anton Blanchard <anton at samba.org>
---
 arch/powerpc/Makefile                    |  5 -----
 arch/powerpc/kernel/Makefile             | 12 ++++++------
 arch/powerpc/platforms/powermac/Makefile |  2 +-
 3 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 132d9c6..c6f64e2 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -198,11 +198,6 @@ ifeq ($(CONFIG_6xx),y)
 KBUILD_CFLAGS		+= -mcpu=powerpc
 endif
 
-# Work around a gcc code-gen bug with -fno-omit-frame-pointer.
-ifeq ($(CONFIG_FUNCTION_TRACER),y)
-KBUILD_CFLAGS		+= -mno-sched-epilog
-endif
-
 cpu-as-$(CONFIG_4xx)		+= -Wa,-m405
 cpu-as-$(CONFIG_ALTIVEC)	+= -Wa,-maltivec
 cpu-as-$(CONFIG_E200)		+= -Wa,-me200
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 502cf69..e14bda6 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -17,14 +17,14 @@ endif
 
 ifdef CONFIG_FUNCTION_TRACER
 # Do not trace early boot code
-CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog
-CFLAGS_REMOVE_prom_init.o = -pg -mno-sched-epilog
-CFLAGS_REMOVE_btext.o = -pg -mno-sched-epilog
-CFLAGS_REMOVE_prom.o = -pg -mno-sched-epilog
+CFLAGS_REMOVE_cputable.o = -pg
+CFLAGS_REMOVE_prom_init.o = -pg
+CFLAGS_REMOVE_btext.o = -pg
+CFLAGS_REMOVE_prom.o = -pg
 # do not trace tracer code
-CFLAGS_REMOVE_ftrace.o = -pg -mno-sched-epilog
+CFLAGS_REMOVE_ftrace.o = -pg
 # timers used by tracing
-CFLAGS_REMOVE_time.o = -pg -mno-sched-epilog
+CFLAGS_REMOVE_time.o = -pg
 endif
 
 obj-y				:= cputable.o ptrace.o syscalls.o \
diff --git a/arch/powerpc/platforms/powermac/Makefile b/arch/powerpc/platforms/powermac/Makefile
index 52c6ce1..e238872 100644
--- a/arch/powerpc/platforms/powermac/Makefile
+++ b/arch/powerpc/platforms/powermac/Makefile
@@ -2,7 +2,7 @@ CFLAGS_bootx_init.o  		+= -fPIC
 
 ifdef CONFIG_FUNCTION_TRACER
 # Do not trace early boot code
-CFLAGS_REMOVE_bootx_init.o = -pg -mno-sched-epilog
+CFLAGS_REMOVE_bootx_init.o = -pg
 endif
 
 obj-y				+= pic.o setup.o time.o feature.o pci.o \
-- 
1.9.1