diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index 5fe175017f07bad4d698ad226e38b2c41cec0bb4..a402262bb37f3930719a11d3182ba0d7a25354d6 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -8,7 +8,6 @@ ccflags-$(CONFIG_ARCH_MULTI_V7) += -I$(srctree)/$(src)/include
 
 obj-y				:=
 obj-m				:=
-obj-n				:= dummy.o
 obj-				:=
 
 # Objects we always build independent of SoC choice
diff --git a/drivers/clk/shmobile/Makefile b/drivers/clk/shmobile/Makefile
index e0029237827a3ee6e2e5f6f8d68100a17702f982..9aab51c8d159bed07a78eedc6be59a3fcb49b912 100644
--- a/drivers/clk/shmobile/Makefile
+++ b/drivers/clk/shmobile/Makefile
@@ -6,5 +6,3 @@ obj-$(CONFIG_ARCH_R8A7790)		+= clk-rcar-gen2.o
 obj-$(CONFIG_ARCH_R8A7791)		+= clk-rcar-gen2.o
 obj-$(CONFIG_ARCH_SHMOBILE_MULTI)	+= clk-div6.o
 obj-$(CONFIG_ARCH_SHMOBILE_MULTI)	+= clk-mstp.o
-# for emply built-in.o
-obj-n	:= dummy
diff --git a/drivers/net/wimax/Makefile b/drivers/net/wimax/Makefile
index 992bc02bc016f55e3106b7f4e426998b908cd4d0..692184dd674a378aba293ca6be398eccd0aa8b87 100644
--- a/drivers/net/wimax/Makefile
+++ b/drivers/net/wimax/Makefile
@@ -1,5 +1 @@
-
 obj-$(CONFIG_WIMAX_I2400M)	+= i2400m/
-
-# (from Sam Ravnborg) force kbuild to create built-in.o
-obj- := dummy.o