diff --git a/sys/arm/arm/machdep.c b/sys/arm/arm/machdep.c
--- a/sys/arm/arm/machdep.c
+++ b/sys/arm/arm/machdep.c
@@ -551,7 +551,7 @@
 
 	/* Establish static device mappings. */
 	err_devmap = platform_devmap_init();
-	devmap_bootstrap(0, NULL);
+	devmap_bootstrap(NULL);
 	vm_max_kernel_address = platform_lastaddr();
 
 	/*
diff --git a/sys/arm64/arm64/machdep.c b/sys/arm64/arm64/machdep.c
--- a/sys/arm64/arm64/machdep.c
+++ b/sys/arm64/arm64/machdep.c
@@ -996,7 +996,7 @@
 
 	physmem_init_kernel_globals();
 
-	devmap_bootstrap(0, NULL);
+	devmap_bootstrap(NULL);
 
 	valid = bus_probe();
 
diff --git a/sys/kern/subr_devmap.c b/sys/kern/subr_devmap.c
--- a/sys/kern/subr_devmap.c
+++ b/sys/kern/subr_devmap.c
@@ -174,7 +174,7 @@
  * with a NULL pointer.
  */
 void
-devmap_bootstrap(vm_offset_t l1pt, const struct devmap_entry *table)
+devmap_bootstrap(const struct devmap_entry *table)
 {
 	const struct devmap_entry *pd;
 
diff --git a/sys/riscv/riscv/machdep.c b/sys/riscv/riscv/machdep.c
--- a/sys/riscv/riscv/machdep.c
+++ b/sys/riscv/riscv/machdep.c
@@ -568,7 +568,7 @@
 	physmem_init_kernel_globals();
 
 	/* Establish static device mappings */
-	devmap_bootstrap(0, NULL);
+	devmap_bootstrap(NULL);
 
 	cninit();
 
diff --git a/sys/sys/devmap.h b/sys/sys/devmap.h
--- a/sys/sys/devmap.h
+++ b/sys/sys/devmap.h
@@ -74,8 +74,7 @@
  * in older code.  If the table pointer is NULL, this will use the table
  * installed previously by devmap_register_table().
  */
-void devmap_bootstrap(vm_offset_t _l1pt,
-    const struct devmap_entry *_table);
+void devmap_bootstrap(const struct devmap_entry *_table);
 
 /*
  * Translate between virtual and physical addresses within a region that is