[PATCH] net: Provide stub for __netif_set_xps_queue if there is no CONFIG_XPS

[PATCH] net: Provide stub for __netif_set_xps_queue if there is no CONFIG_XPS

[Krzysztof Kozlowski]

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>
---
 include/linux/netdevice.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 282e2e95ad5b..c38e774494a3 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3412,6 +3412,12 @@ static inline int netif_set_xps_queue(struct net_device *dev,
 {
 	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
 
 /**
-- 
2.7.4

Re: [PATCH] net: Provide stub for __netif_set_xps_queue if there is no CONFIG_XPS

[David Miller]

From: Krzysztof Kozlowski <krzk@kernel.org>
Date: Fri, 10 Aug 2018 10:47:43 +0200

> 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>

Applied, thank you.