--- a/Makefile
+++ b/Makefile
@@ -243,13 +243,8 @@
 	  else if [ -x /bin/bash ]; then echo /bin/bash; \
 	  else echo sh; fi ; fi)
 
-ifdef CONFIG_CCACHE
-HOSTCC       = ccache gcc
-HOSTCXX      = ccache g++
-else
 HOSTCC       = gcc
 HOSTCXX      = g++
-endif
 HOSTCFLAGS   = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
 HOSTCXXFLAGS = -O2
 
@@ -426,7 +421,7 @@
 		   -fno-strict-aliasing -fno-common \
 		   -Werror-implicit-function-declaration \
 		   -Wno-format-security \
-		   -fno-delete-null-pointer-checks -Wno-array-bounds -Wno-maybe-uninitialized
+		   -fno-delete-null-pointer-checks
-KBUILD_AFLAGS_KERNEL := -Wa,-mimplicit-it=thumb
+KBUILD_AFLAGS_KERNEL :=
 KBUILD_CFLAGS_KERNEL :=
 KBUILD_AFLAGS   := -D__ASSEMBLY__