diff --git a/include/os/linux/kernel/linux/mod_compat.h b/include/os/linux/kernel/linux/mod_compat.h
index a0f618d14c1..1a53c66e522 100644
--- a/include/os/linux/kernel/linux/mod_compat.h
+++ b/include/os/linux/kernel/linux/mod_compat.h
@@ -134,12 +134,14 @@ enum scope_prefix_types {
  *   spa_slop_shift
  */
 /* BEGIN CSTYLED */
-#define ZFS_MODULE_PARAM_CALL(scope_prefix, name_prefix, name, setfunc, getfunc, perm, desc) \
+#define	ZFS_MODULE_PARAM_CALL(scope_prefix, name_prefix, name, setfunc, getfunc, perm, desc) \
 	CTASSERT_GLOBAL((sizeof (scope_prefix) == sizeof (enum scope_prefix_types))); \
 	module_param_call(name_prefix ## name, setfunc, getfunc, &name_prefix ## name, perm); \
 	MODULE_PARM_DESC(name_prefix ## name, desc)
 /* END CSTYLED */
 
+#define	ZFS_MODULE_PARAM_ARGS	const char *buf, zfs_kernel_param_t *kp
+
 #define	ZFS_MODULE_DESCRIPTION(s) MODULE_DESCRIPTION(s)
 #define	ZFS_MODULE_AUTHOR(s) MODULE_AUTHOR(s)
 #define	ZFS_MODULE_LICENSE(s) MODULE_LICENSE(s)
diff --git a/include/sys/arc_impl.h b/include/sys/arc_impl.h
index c55640f8ba4..d4167945f42 100644
--- a/include/sys/arc_impl.h
+++ b/include/sys/arc_impl.h
@@ -614,8 +614,8 @@ extern uint64_t arc_free_memory(void);
 extern int64_t arc_available_memory(void);
 extern void arc_tuning_update(void);
 
-extern int param_set_arc_long(const char *buf, zfs_kernel_param_t *kp);
-extern int param_set_arc_int(const char *buf, zfs_kernel_param_t *kp);
+extern int param_set_arc_long(ZFS_MODULE_PARAM_ARGS);
+extern int param_set_arc_int(ZFS_MODULE_PARAM_ARGS);
 
 #ifdef __cplusplus
 }
diff --git a/include/sys/spa.h b/include/sys/spa.h
index 780119e9af9..e1fab3c6977 100644
--- a/include/sys/spa.h
+++ b/include/sys/spa.h
@@ -1179,10 +1179,10 @@ extern void spa_notify_waiters(spa_t *spa);
 extern void spa_wake_waiters(spa_t *spa);
 
 /* module param call functions */
-int param_set_deadman_ziotime(const char *val, zfs_kernel_param_t *kp);
-int param_set_deadman_synctime(const char *val, zfs_kernel_param_t *kp);
-int param_set_slop_shift(const char *buf, zfs_kernel_param_t *kp);
-int param_set_deadman_failmode(const char *val, zfs_kernel_param_t *kp);
+int param_set_deadman_ziotime(ZFS_MODULE_PARAM_ARGS);
+int param_set_deadman_synctime(ZFS_MODULE_PARAM_ARGS);
+int param_set_slop_shift(ZFS_MODULE_PARAM_ARGS);
+int param_set_deadman_failmode(ZFS_MODULE_PARAM_ARGS);
 
 #ifdef ZFS_DEBUG
 #define	dprintf_bp(bp, fmt, ...) do {				\
diff --git a/include/sys/zfs_context.h b/include/sys/zfs_context.h
index 39c778b1e04..00642175d6b 100644
--- a/include/sys/zfs_context.h
+++ b/include/sys/zfs_context.h
@@ -198,6 +198,7 @@ typedef struct zfs_kernel_param {
 } zfs_kernel_param_t;
 
 #define	ZFS_MODULE_PARAM(scope_prefix, name_prefix, name, type, perm, desc)
+#define	ZFS_MODULE_PARAM_ARGS void
 #define	ZFS_MODULE_PARAM_CALL(scope_prefix, name_prefix, name, setfunc, \
 	getfunc, perm, desc)
 
diff --git a/module/zfs/spa_misc.c b/module/zfs/spa_misc.c
index 6f0783468c4..6a43071119e 100644
--- a/module/zfs/spa_misc.c
+++ b/module/zfs/spa_misc.c
@@ -2891,5 +2891,5 @@ ZFS_MODULE_PARAM(zfs, zfs_, special_class_metadata_reserve_pct, INT, ZMOD_RW,
 	"free space available");
 /* END CSTYLED */
 
-ZFS_MODULE_PARAM_CALL(spa, spa_, slop_shift, param_set_slop_shift,
+ZFS_MODULE_PARAM_CALL(zfs_spa, spa_, slop_shift, param_set_slop_shift,
 	param_get_int, ZMOD_RW, "Reserved free space in pool");