--- xorg-driver-video-radeon-crimson-15.12/common/lib/modules/fglrx/build_mod/firegl_public.c.b	2016-03-30 21:53:04.123817514 +0200
+++ xorg-driver-video-radeon-crimson-15.12/common/lib/modules/fglrx/build_mod/firegl_public.c	2016-03-30 21:54:42.922113915 +0200
@@ -6467,6 +6437,14 @@ static void _copy_xregs_to_kernel(struct
         u64 mask = -1;
         u32 lmask = mask;
         u32 hmask = mask >> 32;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,5,0)
+        int err;
+
+        /*WARN_ON(!alternatives_patched);*/
+
+        XSTATE_XSAVE(xstate, lmask, hmask, err);
+#else
         int err = 0;
 
         /*WARN_ON(!alternatives_patched);*/
@@ -6494,6 +6472,7 @@ static void _copy_xregs_to_kernel(struct
                      xstate_fault(err)
                      : "0" (err)
                      : "memory");
+#endif
 
         /* We should never fault when copying to a kernel buffer: */
         WARN_ON_FPU(err);