From: Haiyang Zhang <haiyangz@microsoft.com>
Date: Fri, 1 Sep 2017 14:30:05 -0700
Patch-mainline: v4.14-rc1
Subject: hv_netvsc: Simplify num_chn checking in rndis_filter_device_add()
Git-commit: 5c4217d05d3258fa9999ad959c9b6da791b70bfa
References: fate#323887

The minus one and assignment to a local variable is not necessary.
This patch simplifies it.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Olaf Hering <ohering@suse.de>
---
 drivers/net/hyperv/rndis_filter.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -1067,7 +1067,7 @@ struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
 	struct ndis_recv_scale_cap rsscap;
 	u32 rsscap_size = sizeof(struct ndis_recv_scale_cap);
 	unsigned int gso_max_size = GSO_MAX_SIZE;
-	u32 mtu, size, num_rss_qs;
+	u32 mtu, size;
 	const struct cpumask *node_cpu_mask;
 	u32 num_possible_rss_qs;
 	int i, ret;
@@ -1215,8 +1215,8 @@ struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
 							net_device->num_chn);
 
 	atomic_set(&net_device->open_chn, 1);
-	num_rss_qs = net_device->num_chn - 1;
-	if (num_rss_qs == 0)
+
+	if (net_device->num_chn == 1)
 		return net_device;
 
 	for (i = 1; i < net_device->num_chn; i++) {