From: Stephen Hemminger <stephen@networkplumber.org>
Date: Fri, 20 Apr 2018 08:48:47 -0700
Patch-mainline: v4.18-rc1
Subject: hv_netvsc: select needed ucs2_string routine
Git-commit: 48d7a07ba355c7056e66adcdd35379d12e48252b
References: bsc#1107207

The conversion of rndis friendly name to utf8 uses a standard
kernel routine which is optional in config. Therefore build
would fail for some configurations. Resolve by selecting needed
library.

Fixes: 0fe554a46a0f ("hv_netvsc: propogate Hyper-V friendly name into interface alias")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Olaf Hering <ohering@suse.de>
---
 drivers/net/hyperv/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/hyperv/Kconfig b/drivers/net/hyperv/Kconfig
--- a/drivers/net/hyperv/Kconfig
+++ b/drivers/net/hyperv/Kconfig
@@ -1,5 +1,6 @@
 config HYPERV_NET
 	tristate "Microsoft Hyper-V virtual network driver"
 	depends on HYPERV
+	select UCS2_STRING
 	help
 	  Select this option to enable the Hyper-V virtual network driver.