[SRU][B/D/E/F][PATCH 0/1] i40e: Setting VF MAC address causes General Protection Fault

[Heitor Alves de Siqueira]

BugLink: https://bugs.launchpad.net/bugs/1852432

[Impact]
 * Creating SR-IOV enabled VMs in Openstack can sometimes trigger the GPF and
   leave system unusable

[Test Case]
 * Continuously spin up VFs and set MAC address with e.g. ifconfig

[Fix]
 * The fix updates the VSI pointer passed down to i40e_set_vf_mac function() if
   the adapter is still in reset, preventing the GPF.

[Regression Potential]
 * Regression potential should be low, as we're now updating the VSI using the
   ID stored in the VF pointer
 * Regressions could arise from issues in VF creation or reset, as that would
   corrupt the new VSI pointer
 * Patch was validated and tested in a production environment

Slawomir Laba (1):
  i40e: Fix crash caused by stress setting of VF MAC addresses

 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

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2.23.0