diff --git a/drivers/isdn/capi/Makefile b/drivers/isdn/capi/Makefile
index 352217ebabd8a..4fd3a4d7133f5 100644
--- a/drivers/isdn/capi/Makefile
+++ b/drivers/isdn/capi/Makefile
@@ -2,4 +2,5 @@
 # Makefile for the CAPI subsystem used by BT_CMTP
 
 obj-$(CONFIG_BT_CMTP)			+= kernelcapi.o
-kernelcapi-y				:= kcapi.o capiutil.o capi.o kcapi_proc.o
+kernelcapi-y				:= kcapi.o capiutil.o capi.o
+kernelcapi-$(CONFIG_PROC_FS)		+= kcapi_proc.o
diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c
index 136ba9fe55e08..c5d13bdc239be 100644
--- a/drivers/isdn/capi/kcapi.c
+++ b/drivers/isdn/capi/kcapi.c
@@ -917,13 +917,16 @@ int __init kcapi_init(void)
 		return err;
 	}
 
-	kcapi_proc_init();
+	if (IS_ENABLED(CONFIG_PROC_FS))
+		kcapi_proc_init();
+
 	return 0;
 }
 
 void kcapi_exit(void)
 {
-	kcapi_proc_exit();
+	if (IS_ENABLED(CONFIG_PROC_FS))
+		kcapi_proc_exit();
 
 	cdebug_exit();
 	destroy_workqueue(kcapi_wq);
diff --git a/drivers/net/ethernet/3com/3c515.c b/drivers/net/ethernet/3com/3c515.c
index ba3e7aa1a28fb..4725a8cfd695e 100644
--- a/drivers/net/ethernet/3com/3c515.c
+++ b/drivers/net/ethernet/3com/3c515.c
@@ -31,9 +31,6 @@
    Setting to > 1512 effectively disables this feature. */
 static int rx_copybreak = 200;
 
-/* Allow setting MTU to a larger size, bypassing the normal ethernet setup. */
-static const int mtu = 1500;
-
 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
 static int max_interrupt_work = 20;
 
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-platform.c b/drivers/net/ethernet/amd/xgbe/xgbe-platform.c
index 9131020d06af1..7912b3b45148a 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-platform.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-platform.c
@@ -538,7 +538,6 @@ static const struct xgbe_version_data xgbe_v1 = {
 	.tx_tstamp_workaround		= 1,
 };
 
-#ifdef CONFIG_ACPI
 static const struct acpi_device_id xgbe_acpi_match[] = {
 	{ .id = "AMDI8001",
 	  .driver_data = (kernel_ulong_t)&xgbe_v1 },
@@ -546,9 +545,7 @@ static const struct acpi_device_id xgbe_acpi_match[] = {
 };
 
 MODULE_DEVICE_TABLE(acpi, xgbe_acpi_match);
-#endif
 
-#ifdef CONFIG_OF
 static const struct of_device_id xgbe_of_match[] = {
 	{ .compatible = "amd,xgbe-seattle-v1a",
 	  .data = &xgbe_v1 },
@@ -556,7 +553,6 @@ static const struct of_device_id xgbe_of_match[] = {
 };
 
 MODULE_DEVICE_TABLE(of, xgbe_of_match);
-#endif
 
 static SIMPLE_DEV_PM_OPS(xgbe_platform_pm_ops,
 			 xgbe_platform_suspend, xgbe_platform_resume);
@@ -564,12 +560,8 @@ static SIMPLE_DEV_PM_OPS(xgbe_platform_pm_ops,
 static struct platform_driver xgbe_driver = {
 	.driver = {
 		.name = XGBE_DRV_NAME,
-#ifdef CONFIG_ACPI
 		.acpi_match_table = xgbe_acpi_match,
-#endif
-#ifdef CONFIG_OF
 		.of_match_table = xgbe_of_match,
-#endif
 		.pm = &xgbe_platform_pm_ops,
 	},
 	.probe = xgbe_platform_probe,