linux/drivers/net/ethernet/intel
Anjali Singhai 30e2561b95 i40e: Fix for recursive RTNL lock during PROMISC change
The sync_vsi_filters function can be called directly under RTNL
or through the timer subtask without one. This was causing a deadlock.

If sync_vsi_filters is called from a thread which held the lock,
and in another thread the PROMISC setting got changed we would
be executing the PROMISC change in the thread which already held
the lock alongside the other filter update. The PROMISC change
requires a reset if we are on a VEB, which requires it to be called
under RTNL.

Earlier the driver would call reset for PROMISC change without
checking if we were already under RTNL and would try to grab it
causing a deadlock. This patch changes the flow to see if we are
already under RTNL before trying to grab it.

Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-28 17:43:23 -07:00
..
e1000 e1000: remove dead e1000_init_eeprom_params calls 2015-09-22 15:58:28 -07:00
e1000e e1000e: Enable TSO for stacked VLAN 2015-09-22 15:58:28 -07:00
fm10k fm10k: add support for extra debug statistics 2015-09-22 15:58:27 -07:00
i40e i40e: Fix for recursive RTNL lock during PROMISC change 2015-09-28 17:43:23 -07:00
i40evf i40e/i40evf: refactor tx timeout logic 2015-09-28 17:38:27 -07:00
igb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-08-27 21:45:31 -07:00
igbvf igbvf: Enable TSO for stacked VLAN 2015-09-22 15:58:28 -07:00
ixgb ixgb: call netif_carrier_off early on down 2015-03-20 17:41:52 -07:00
ixgbe ixgbe: Advance version to 4.2.1 2015-09-23 23:09:34 -07:00
ixgbevf ixgbevf: Enables TSO for stacked VLAN 2015-09-22 15:58:29 -07:00
e100.c e100: Release skb when DMA mapping is failed in e100_xmit_prepare 2015-08-18 14:06:05 -07:00
Kconfig drivers/net: remove all references to obsolete Ethernet-HOWTO 2015-06-23 06:50:35 -07:00
Makefile fm10k: Add skeletal frame for Intel(R) FM10000 Ethernet Switch Host Interface Driver 2014-09-23 03:59:13 -07:00