openwrt/target/linux/generic-2.6/patches-2.6.27/004-extra_optimization.patch

--- a/Makefile
+++ b/Makefile
@@ -550,6 +550,9 @@ 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,)
port generic and ixp4xx kernel patches to 2.6.27 (compiles except for iptables, but otherwise completely untested) SVN-Revision: 12790 2008-09-29 01:08:17 +00:00			`--- a/Makefile`
			`+++ b/Makefile`
refresh 2.6.27 patches SVN-Revision: 17061 2009-07-31 11:10:20 +00:00			`@@ -550,6 +550,9 @@ endif`
port generic and ixp4xx kernel patches to 2.6.27 (compiles except for iptables, but otherwise completely untested) SVN-Revision: 12790 2008-09-29 01:08:17 +00:00			`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,)`