| commit | 0719e72ccb801829a3d735d187ca8417f0930459 | [log] [tgz] |
|---|---|---|
| author | stephen hemminger <stephen@networkplumber.org> | Wed Jan 11 09:16:32 2017 -0800 |
| committer | David S. Miller <davem@davemloft.net> | Wed Jan 11 16:13:53 2017 -0500 |
| tree | a4f718fefcb15433fa59f6d4add44ae220edb806 | |
| parent | 4ecb1d83f6abe8d49163427f4d431ebe98f8bd5f [diff] |
netvsc: add rcu_read locking to netvsc callback
The receive callback (in tasklet context) is using RCU to get reference
to associated VF network device but this is not safe. RCU read lock
needs to be held. Found by running with full lockdep debugging
enabled.
Fixes: f207c10d9823 ("hv_netvsc: use RCU to protect vf_netdev")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>