--- wl-6.30.223.271/src/wl/sys/wl_cfg80211_hybrid.c~	2019-05-07 19:17:44.000000000 +0200
+++ wl-6.30.223.271/src/wl/sys/wl_cfg80211_hybrid.c	2019-05-07 19:19:00.311600063 +0200
@@ -464,7 +464,11 @@
 	ifr.ifr_data = (caddr_t)&ioc;
 
 	fs = get_fs();
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 1, 0)
+	set_fs(KERNEL_DS);
+#else
 	set_fs(get_ds());
+#endif
 #if defined(WL_USE_NETDEV_OPS)
 	err = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, SIOCDEVPRIVATE);
 #else