From: Krzysztof Kozlowski <krzk@kernel.org>
Date: Fri, 10 Aug 2018 10:47:43 +0200
Subject: net: Provide stub for __netif_set_xps_queue if there is no CONFIG_XPS
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Patch-mainline: v4.19-rc1
Git-commit: c9fbb2d25295a566b97d62e6904741e8e1702d83
References: bsc#1109837

Building virtio_net driver without CONFIG_XPS fails with:

    drivers/net/virtio_net.c: In function ‘virtnet_set_affinity’:
    drivers/net/virtio_net.c:1910:3: error: implicit declaration of function ‘__netif_set_xps_queue’ [-Werror=implicit-function-declaration]
       __netif_set_xps_queue(vi->dev, mask, i, false);
       ^
Fixes: 4d99f6602cb5 ("net: allow to call netif_reset_xps_queues() under cpus_read_lock")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 include/linux/netdevice.h |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3373,6 +3373,13 @@ static inline int netif_set_xps_queue(st
 {
 	return 0;
 }
+
+static inline int __netif_set_xps_queue(struct net_device *dev,
+					const unsigned long *mask,
+					u16 index, bool is_rxqs_map)
+{
+	return 0;
+}
 #endif
 
 /**