From 9a1be9afdc7701bf45b10d241315bc3511de7f66 Mon Sep 17 00:00:00 2001
From: MilhouseVH <milhouseVH.github@nmacleod.com>
Date: Mon, 5 Nov 2018 03:16:25 +0000
Subject: [PATCH] Fix build with 4.20-rc1

Ref: https://github.com/torvalds/linux/commit/976516404ff3fab2a8caa8bd6f5efc1437fed0b8
     https://github.com/torvalds/linux/commit/8498887660dfc9a07659ad545bfec389eb1d1d3f
---
 os_dep/linux/ioctl_cfg80211.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/os_dep/linux/ioctl_cfg80211.c b/os_dep/linux/ioctl_cfg80211.c
index 2b92c93..ed36a13 100644
--- a/os_dep/linux/ioctl_cfg80211.c
+++ b/os_dep/linux/ioctl_cfg80211.c
@@ -357,7 +357,9 @@ rtw_cfg80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = {
 
 static u64 rtw_get_systime_us(void)
 {
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,20,0))
+	return ktime_to_us(ktime_get_boottime());
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
 	struct timespec ts;
 	get_monotonic_boottime(&ts);
 	return ((u64)ts.tv_sec*1000000) + ts.tv_nsec / 1000;