diff --git a/sys/dev/flash/at45d.c b/sys/dev/flash/at45d.c
index 2c7402dbbe82..f9495b9a56e8 100644
--- a/sys/dev/flash/at45d.c
+++ b/sys/dev/flash/at45d.c
@@ -584,8 +584,6 @@ at45d_task(void *arg)
 	}
 }
 
-static devclass_t at45d_devclass;
-
 static device_method_t at45d_methods[] = {
 	/* Device interface */
 	DEVMETHOD(device_probe,		at45d_probe),
@@ -601,7 +599,7 @@ static driver_t at45d_driver = {
 	sizeof(struct at45d_softc),
 };
 
-DRIVER_MODULE(at45d, spibus, at45d_driver, at45d_devclass, NULL, NULL);
+DRIVER_MODULE(at45d, spibus, at45d_driver, NULL, NULL);
 MODULE_DEPEND(at45d, spibus, 1, 1, 1);
 #ifdef FDT
 MODULE_DEPEND(at45d, fdt_slicer, 1, 1, 1);
diff --git a/sys/dev/flash/cqspi.c b/sys/dev/flash/cqspi.c
index b1b1f4cbc7ad..819877944241 100644
--- a/sys/dev/flash/cqspi.c
+++ b/sys/dev/flash/cqspi.c
@@ -759,9 +759,7 @@ static device_method_t cqspi_methods[] = {
 	{ 0, 0 }
 };
 
-static devclass_t cqspi_devclass;
-
 DEFINE_CLASS_1(cqspi, cqspi_driver, cqspi_methods,
     sizeof(struct cqspi_softc), simplebus_driver);
 
-DRIVER_MODULE(cqspi, simplebus, cqspi_driver, cqspi_devclass, 0, 0);
+DRIVER_MODULE(cqspi, simplebus, cqspi_driver, 0, 0);
diff --git a/sys/dev/flash/flexspi/flex_spi.c b/sys/dev/flash/flexspi/flex_spi.c
index 0637d7f846c6..271431bb92e0 100644
--- a/sys/dev/flash/flexspi/flex_spi.c
+++ b/sys/dev/flash/flexspi/flex_spi.c
@@ -972,7 +972,6 @@ flex_spi_task(void *arg)
 	}
 }
 
-static devclass_t flex_spi_devclass;
 static device_method_t flex_spi_methods[] = {
 	/* Device interface */
 	DEVMETHOD(device_probe,		flex_spi_probe),
@@ -988,5 +987,5 @@ static driver_t flex_spi_driver = {
 	sizeof(struct flex_spi_softc),
 };
 
-DRIVER_MODULE(flex_spi, simplebus, flex_spi_driver, flex_spi_devclass, 0, 0);
+DRIVER_MODULE(flex_spi, simplebus, flex_spi_driver, 0, 0);
 SIMPLEBUS_PNP_INFO(flex_spi_compat_data);
diff --git a/sys/dev/flash/mx25l.c b/sys/dev/flash/mx25l.c
index dfe670f73aee..b57e9c9f8f77 100644
--- a/sys/dev/flash/mx25l.c
+++ b/sys/dev/flash/mx25l.c
@@ -668,8 +668,6 @@ mx25l_task(void *arg)
 	}
 }
 
-static devclass_t mx25l_devclass;
-
 static device_method_t mx25l_methods[] = {
 	/* Device interface */
 	DEVMETHOD(device_probe,		mx25l_probe),
@@ -685,7 +683,7 @@ static driver_t mx25l_driver = {
 	sizeof(struct mx25l_softc),
 };
 
-DRIVER_MODULE(mx25l, spibus, mx25l_driver, mx25l_devclass, 0, 0);
+DRIVER_MODULE(mx25l, spibus, mx25l_driver, 0, 0);
 MODULE_DEPEND(mx25l, spibus, 1, 1, 1);
 #ifdef	FDT
 MODULE_DEPEND(mx25l, fdt_slicer, 1, 1, 1);
diff --git a/sys/dev/flash/n25q.c b/sys/dev/flash/n25q.c
index b64d3fa57474..6a577e107cb5 100644
--- a/sys/dev/flash/n25q.c
+++ b/sys/dev/flash/n25q.c
@@ -465,8 +465,6 @@ n25q_task(void *arg)
 	}
 }
 
-static devclass_t n25q_devclass;
-
 static device_method_t n25q_methods[] = {
 	/* Device interface */
 	DEVMETHOD(device_probe,		n25q_probe),
@@ -482,4 +480,4 @@ static driver_t n25q_driver = {
 	sizeof(struct n25q_softc),
 };
 
-DRIVER_MODULE(n25q, simplebus, n25q_driver, n25q_devclass, 0, 0);
+DRIVER_MODULE(n25q, simplebus, n25q_driver, 0, 0);