From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Tue, 12 Aug 2014 06:33:14 +0000 (+0000)
Subject: i40e: fix panic due to too-early Tx queue enable
X-Git-Tag: firefly_0821_release~176^2~3043^2~154^2~7
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=32b5b81170b6a60cf41d403ab31c417b56ff0d44;p=firefly-linux-kernel-4.4.55.git

i40e: fix panic due to too-early Tx queue enable

This fixes the panic under traffic load when resetting.  This issue
could also show up if/whenever there is a Tx-timeout.

Change-ID: Ie393a1f17fd5d962e56fc3bfe784899ef25402f5
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 64b8683fda1e..4071b4e551cc 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5289,7 +5289,7 @@ static void i40e_fdir_reinit_subtask(struct i40e_pf *pf)
  **/
 static void i40e_vsi_link_event(struct i40e_vsi *vsi, bool link_up)
 {
-	if (!vsi)
+	if (!vsi || test_bit(__I40E_DOWN, &vsi->state))
 		return;
 
 	switch (vsi->type) {