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Name Last Modified Last Commit
cosmic-stable 2019-01-08 16:38:48 UTC 2019-01-08
Linux 4.18.20

Author: Greg Kroah-Hartman
Author Date: 2018-11-21 08:22:14 UTC

Linux 4.18.20

BugLink: http://bugs.launchpad.net/bugs/1810821

Signed-off-by: Kamal Mostafa <kamal@canonical.com>

master-next 2019-01-08 06:02:27 UTC 2019-01-08
UBUNTU: SAUCE: pci/nvme: prevent WDC PC SN720 NVMe from entering D3 and being...

Author: AceLan Kao
Author Date: 2018-11-29 07:44:25 UTC

UBUNTU: SAUCE: pci/nvme: prevent WDC PC SN720 NVMe from entering D3 and being disabled

BugLink: https://bugs.launchpad.net/bugs/1805775

It leads to the power consumption increases 3.41W during s2idle, while it
consumes much less idle if forbidding put WDC NVMe to D3 and before
entering S2Idle.

Windows doesn't put NVMe to D3 in Modern Standby, and uses its own APST
feature to do the power management. To leverage its APST feature during
s2idle, we can't disable nvme device while suspending, too.

So, here is what we do to the driver:
- Prevent nvme from entering D3,
- Prevent nvme from being disabled when suspending.

Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Acked-by: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Kai Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

ena-v201 2018-10-25 16:01:55 UTC 2018-10-25
net: ena: fix compilation error in xtensa architecture

Author: Arthur Kiyanovski
Author Date: 2018-10-21 15:07:14 UTC

net: ena: fix compilation error in xtensa architecture

BugLink: http://bugs.launchpad.net/bugs/1798182

linux/prefetch.h is never explicitly included in ena_com, although
functions from it, such as prefetchw(), are used throughout ena_com.
This is an inclusion bug, and we fix it here by explicitly including
linux/prefetch.h. The bug was exposed when the driver was compiled
for the xtensa architecture.

Fixes: 689b2bdaaa14 ("net: ena: add functions for handling Low Latency Queues in ena_com")
Fixes: 8c590f977638 ("ena: Fix Kconfig dependency on X86")
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 00f17a8219f02139119d8b4547e032bf4888fa0d net-next)
Signed-off-by: Kamal Mostafa <kamal@canonical.com>

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