提交 e7ddd6af 编写于 作者: T Thomas Falcon 提交者: Greg Kroah-Hartman

net/ibmvnic: Fix RTNL deadlock during device reset

[ Upstream commit 986103e7920cabc0b910749e77ae5589d3934d52 ]

Commit a5681e20b541 ("net/ibmnvic: Fix deadlock problem
in reset") made the change to hold the RTNL lock during
driver reset but still calls netdev_notify_peers, which
results in a deadlock. Instead, use call_netdevice_notifiers,
which is functionally the same except that it does not
take the RTNL lock again.

Fixes: a5681e20b541 ("net/ibmnvic: Fix deadlock problem in reset")
Signed-off-by: NThomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>
上级 ffc1d85e
......@@ -1859,7 +1859,7 @@ static int do_reset(struct ibmvnic_adapter *adapter,
if (adapter->reset_reason != VNIC_RESET_FAILOVER &&
adapter->reset_reason != VNIC_RESET_CHANGE_PARAM)
netdev_notify_peers(netdev);
call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, netdev);
netif_carrier_on(netdev);
......
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