From eca9950f63ec4491a7bd6138174ac08595184e1b Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Thu, 2 Feb 2012 08:23:54 +0000
Subject: kernel: add preliminary support for linux 3.3

Based on 3.3-rc2

SVN-Revision: 29986
---
 .../patches-3.3/201-extra_optimization.patch       | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 target/linux/generic/patches-3.3/201-extra_optimization.patch

(limited to 'target/linux/generic/patches-3.3/201-extra_optimization.patch')

diff --git a/target/linux/generic/patches-3.3/201-extra_optimization.patch b/target/linux/generic/patches-3.3/201-extra_optimization.patch
new file mode 100644
index 0000000000..6fe8b0938d
--- /dev/null
+++ b/target/linux/generic/patches-3.3/201-extra_optimization.patch
@@ -0,0 +1,24 @@
+--- a/Makefile
++++ b/Makefile
+@@ -559,9 +559,9 @@ 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
+@@ -620,6 +620,9 @@ 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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