From: Haiyang Zhang <haiyangz@microsoft.com>
Date: Fri, 1 Sep 2017 21:30:07 +0000 (-0700)
Subject: hv_netvsc: Fix the channel limit in netvsc_set_rxfh()
X-Git-Tag: v4.14-rc1~130^2~33^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=db3cd7af9d0f174475cbcc02c0e96a5408fe2dc2;p=thirdparty%2Flinux.git

hv_netvsc: Fix the channel limit in netvsc_set_rxfh()

The limit of setting receive indirection table value should be
the current number of channels, not the VRSS_CHANNEL_MAX.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index fd65d32bf24df..165ba4b3b4232 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -1407,7 +1407,7 @@ static int netvsc_set_rxfh(struct net_device *dev, const u32 *indir,
 	rndis_dev = ndev->extension;
 	if (indir) {
 		for (i = 0; i < ITAB_NUM; i++)
-			if (indir[i] >= VRSS_CHANNEL_MAX)
+			if (indir[i] >= ndev->num_chn)
 				return -EINVAL;
 
 		for (i = 0; i < ITAB_NUM; i++)