[SRU] [X/B/C/D/Unstable] [PATCH 0/1] Fix Intel I210 doesn't work when ethernet cable gets plugged

Kai-Heng Feng kai.heng.feng at canonical.com
Wed Dec 5 06:16:04 UTC 2018


BugLink: https://bugs.launchpad.net/bugs/1806818

[Impact]
Plugging ethernet cable cannot wake up Intel I210 when it's runtime
suspended. It's because the PME is not enabled.

[Fix]
PCI core doesn't enable PME because the driver explicitly saves its PCI
state before runtime suspend routine. Don't save PCI state fixes the
issue.

[Test]
PME is correctly enabled, and cable plugging starts to work.

[Regression Potential]
Minimal. The fix limits to on device, and it's specific to runtime power
management. Other functionalities are not affected.

Kai-Heng Feng (1):
  igb: Fix an issue that PME is not enabled during runtime suspend

 drivers/net/ethernet/intel/igb/igb_main.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

-- 
2.17.1




More information about the kernel-team mailing list