004-extra_optimization.patch

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Index: linux-2.6.21.7/Makefile
===================================================================
--- linux-2.6.21.7.orig/Makefile
+++ linux-2.6.21.7/Makefile
@@ -507,6 +507,9 @@ CFLAGS          += $(call cc-option, -fn
 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
 CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)