--- a/package/base-files/files/etc/hotplug.d/net/00-sysctl	2022-02-09 17:30:24.308209645 +0800
+++ b/package/base-files/files/etc/hotplug.d/net/00-sysctl	2022-02-09 21:01:24.392931550 +0800
@@ -1,4 +1,29 @@
 #!/bin/sh
+# $1: module name
+# return value
+#    1: if the module named $1 is built-in or inserted.
+#    0: if the module exists but has not been inserted.
+#   -1: if the module does not exist.
+module_exist()
+{
+	mpath="/lib/modules/`uname -r`"
+	retval=-1
+	mod_in_lib=`find $mpath -name "$1".ko > /dev/null 2>&1`
+	#echo "find $mpath -name "$1".ko" > /dev/console
+	if [ ! -z $mod_in_lib ]; then
+		retval=0
+	fi
+	# TODO find out a way in OpenWRT
+	mod_builtin=`grep $1 $mpath/modules.builtin 2>/dev/null`
+	if [ ! -z "$mod_builtin" ]; then
+		retval=1
+	fi
+	mod_inserted=`lsmod | grep $1 2>/dev/null`
+	if [ ! -z "$mod_inserted" ]; then
+		retval=1
+	fi
+	echo $retval
+}
 
 if [ "$ACTION" = add ]; then
 	for CONF in /etc/sysctl.d/*.conf /etc/sysctl.conf; do
@@ -6,4 +31,11 @@
 		sed -ne "/^[[:space:]]*net\..*\.$DEVICENAME\./p" "$CONF" | \
 			sysctl -e -p - | logger -t sysctl
 	done
+	is_mac80211=$(module_exist "mt76")
+
+	if [ "$is_mac80211" = "1" ]; then
+		[ -f /sbin/smp-mt76.sh ] && /sbin/smp-mt76.sh
+	else
+		[ -f /sbin/smp.sh ] && /sbin/smp.sh
+	fi
 fi