From b2cab73a788f178bfe2f8620d8c4a483dfba34fc Mon Sep 17 00:00:00 2001
From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Sat, 16 Apr 2011 18:31:05 +0000
Subject: kernel: reorganize 2.6.39 patches

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26691 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../patches-2.6.39/201-extra_optimization.patch    | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 target/linux/generic/patches-2.6.39/201-extra_optimization.patch

(limited to 'target/linux/generic/patches-2.6.39/201-extra_optimization.patch')

diff --git a/target/linux/generic/patches-2.6.39/201-extra_optimization.patch b/target/linux/generic/patches-2.6.39/201-extra_optimization.patch
new file mode 100644
index 000000000..8039c6652
--- /dev/null
+++ b/target/linux/generic/patches-2.6.39/201-extra_optimization.patch
@@ -0,0 +1,24 @@
+--- a/Makefile
++++ b/Makefile
+@@ -543,9 +543,9 @@ endif # $(dot-config)
+ all: vmlinux
+ 
+ ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
+-KBUILD_CFLAGS	+= -Os
++KBUILD_CFLAGS	+= -Os -fno-caller-saves
+ else
+-KBUILD_CFLAGS	+= -O2
++KBUILD_CFLAGS	+= -O2 -fno-reorder-blocks -fno-tree-ch -fno-caller-saves
+ endif
+ 
+ include $(srctree)/arch/$(SRCARCH)/Makefile
+@@ -600,6 +600,9 @@ endif
+ NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
+ CHECKFLAGS     += $(NOSTDINC_FLAGS)
+ 
++# improve gcc optimization
++CFLAGS += $(call cc-option,-funit-at-a-time,)
++
+ # warn about C99 declaration after statement
+ KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
+ 
-- 
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