From ec0411a367bdf9292e72f9475e99b3487e08aa8f Mon Sep 17 00:00:00 2001
From: kimocoder <christianbremvaag@gmail.com>
Date: Fri, 1 Feb 2019 23:27:55 +0100
Subject: [PATCH] added kernel v4.20 support

---
 Makefile                      | 1 +
 os_dep/linux/ioctl_cfg80211.c | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/Makefile b/Makefile
index e0a9aff..aedb285 100755
--- a/Makefile
+++ b/Makefile
@@ -14,6 +14,7 @@ EXTRA_CFLAGS += -Wno-unused-parameter
 EXTRA_CFLAGS += -Wno-unused-function
 EXTRA_CFLAGS += -Wno-unused
 #EXTRA_CFLAGS += -Wno-uninitialized
+EXTRA_CFLAGS += -Wno-vla
 
 GCC_VER_49 := $(shell echo `$(CC) -dumpversion | cut -f1-2 -d.` \>= 4.9 | bc )
 ifeq ($(GCC_VER_49),1)
diff --git a/os_dep/linux/ioctl_cfg80211.c b/os_dep/linux/ioctl_cfg80211.c
index 209a808..31e920d 100755
--- a/os_dep/linux/ioctl_cfg80211.c
+++ b/os_dep/linux/ioctl_cfg80211.c
@@ -688,7 +688,11 @@ static u64 rtw_get_systime_us(void)
 {
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39))
 	struct timespec ts;
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0))
+	getboottime(&ts);
+#else
 	get_monotonic_boottime(&ts);
+#endif
 	return ((u64)ts.tv_sec * 1000000) + ts.tv_nsec / 1000;
 #else
 	struct timeval tv;