diff --git a/sys/modules/ix/Makefile b/sys/modules/ix/Makefile
index 421ca104a2e4..1affdeb1d024 100644
--- a/sys/modules/ix/Makefile
+++ b/sys/modules/ix/Makefile
@@ -10,6 +10,6 @@ SRCS    += if_ix.c if_bypass.c if_fdir.c if_sriov.c ix_txrx.c ixgbe_osdep.c
 SRCS    += ixgbe_common.c ixgbe_api.c ixgbe_phy.c ixgbe_mbx.c ixgbe_vf.c
 SRCS    += ixgbe_dcb.c ixgbe_dcb_82598.c ixgbe_dcb_82599.c
 SRCS    += ixgbe_82598.c ixgbe_82599.c ixgbe_x540.c ixgbe_x550.c
-CFLAGS+= -I${SRCTOP}/sys/dev/ixgbe -DSMP
+CFLAGS+= -I${SRCTOP}/sys/dev/ixgbe
 
 .include <bsd.kmod.mk>
diff --git a/sys/modules/ixv/Makefile b/sys/modules/ixv/Makefile
index 573af9189516..db0bb9fe9b4f 100644
--- a/sys/modules/ixv/Makefile
+++ b/sys/modules/ixv/Makefile
@@ -10,6 +10,6 @@ SRCS    += if_ixv.c if_fdir.c ix_txrx.c ixgbe_osdep.c
 SRCS    += ixgbe_common.c ixgbe_api.c ixgbe_phy.c ixgbe_mbx.c ixgbe_vf.c
 SRCS    += ixgbe_dcb.c ixgbe_dcb_82598.c ixgbe_dcb_82599.c
 SRCS    += ixgbe_82598.c ixgbe_82599.c ixgbe_x540.c ixgbe_x550.c
-CFLAGS+= -I${SRCTOP}/sys/dev/ixgbe -DSMP
+CFLAGS+= -I${SRCTOP}/sys/dev/ixgbe
 
 .include <bsd.kmod.mk>
diff --git a/sys/modules/lio/Makefile b/sys/modules/lio/Makefile
index e3b48cc81a1c..1484e3029d6e 100644
--- a/sys/modules/lio/Makefile
+++ b/sys/modules/lio/Makefile
@@ -7,7 +7,6 @@
 KMOD = if_lio
 CFLAGS += -I${.CURDIR}/../../dev/liquidio
 CFLAGS += -I${.CURDIR}/../../dev/liquidio/base
-CFLAGS += -DSMP
 
 SRCS = device_if.h bus_if.h pci_if.h vnode_if.h opt_inet.h opt_inet6.h
 SRCS += vnode_if_newproto.h vnode_if_typedef.h
diff --git a/sys/modules/oce/Makefile b/sys/modules/oce/Makefile
index 5565d2dec31a..f5ea74b979ea 100644
--- a/sys/modules/oce/Makefile
+++ b/sys/modules/oce/Makefile
@@ -7,7 +7,7 @@ KMOD	= if_oce
 SRCS    = oce_if.c oce_hw.c oce_mbox.c oce_util.c oce_queue.c oce_sysctl.c
 SRCS    += bus_if.h device_if.h pci_if.h opt_inet.h opt_inet6.h
 
-CFLAGS+= -I${SRCTOP}/sys/dev/oce -DSMP
+CFLAGS+= -I${SRCTOP}/sys/dev/oce
 
 # uncomment for lock profiling statistics
 #CFLAGS  += -DLOCK_PROFILING
diff --git a/sys/modules/vmm/Makefile b/sys/modules/vmm/Makefile
index fa016a97192a..4e430acf93ab 100644
--- a/sys/modules/vmm/Makefile
+++ b/sys/modules/vmm/Makefile
@@ -6,7 +6,7 @@ SRCS=	opt_acpi.h opt_ddb.h device_if.h bus_if.h pci_if.h pcib_if.h acpi_if.h
 DPSRCS+=	vmx_assym.h svm_assym.h
 DPSRCS+=	vmx_genassym.c svm_genassym.c offset.inc
 
-CFLAGS+= -DVMM_KEEP_STATS -DSMP
+CFLAGS+= -DVMM_KEEP_STATS
 CFLAGS+= -I${SRCTOP}/sys/amd64/vmm
 CFLAGS+= -I${SRCTOP}/sys/amd64/vmm/io
 CFLAGS+= -I${SRCTOP}/sys/amd64/vmm/intel