diff -Naur hybrid-v35_64-nodebug-pcoem-6_30_223_271.orig/src/wl/sys/wl_cfg80211_hybrid.c hybrid-v35_64-nodebug-pcoem-6_30_223_271/src/wl/sys/wl_cfg80211_hybrid.c
--- hybrid-v35_64-nodebug-pcoem-6_30_223_271.orig/src/wl/sys/wl_cfg80211_hybrid.c	2017-07-03 11:32:04.271398000 +0200
+++ hybrid-v35_64-nodebug-pcoem-6_30_223_271/src/wl/sys/wl_cfg80211_hybrid.c	2019-04-14 17:35:23.565460847 +0200
@@ -490,7 +490,11 @@
 	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
diff -Naur hybrid-v35_64-nodebug-pcoem-6_30_223_271.orig/src/wl/sys/wl_iw.c hybrid-v35_64-nodebug-pcoem-6_30_223_271/src/wl/sys/wl_iw.c
--- hybrid-v35_64-nodebug-pcoem-6_30_223_271.orig/src/wl/sys/wl_iw.c	2017-06-03 15:26:57.095475000 +0200
+++ hybrid-v35_64-nodebug-pcoem-6_30_223_271/src/wl/sys/wl_iw.c	2019-05-30 01:29:32.766280636 +0200
@@ -117,7 +117,11 @@
 	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)
 	ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, SIOCDEVPRIVATE);
 #else