hv_netvsc: Fix a warning of suspicious RCU usage (6d0d779d) · Commits · 戴 / test

This fixes a warning of "suspicious rcu_dereference_check() usage" when nload runs. Fixes: ("netvsc: fix RCU warning in get_stats") Signed-off-by:

drivers/net/hyperv/netvsc_drv.c

+7 −2

Original line number	Diff line number	Diff line
		@@ -1239,12 +1239,15 @@ static void netvsc_get_stats64(struct net_device *net,
		struct rtnl_link_stats64 *t)
		{
		struct net_device_context *ndev_ctx = netdev_priv(net);
		struct netvsc_device *nvdev = rcu_dereference_rtnl(ndev_ctx->nvdev);
		struct netvsc_device *nvdev;
		struct netvsc_vf_pcpu_stats vf_tot;
		int i;

		rcu_read_lock();

		nvdev = rcu_dereference(ndev_ctx->nvdev);
		if (!nvdev)
		return;
		goto out;

		netdev_stats_to_stats64(t, &net->stats);

		@@ -1283,6 +1286,8 @@ static void netvsc_get_stats64(struct net_device *net,
		t->rx_packets += packets;
		t->multicast += multicast;
		}
		out:
		rcu_read_unlock();
		}

		static int netvsc_set_mac_addr(struct net_device ndev, void p)