ACK: [SRU][Artful][Bionic][Cosmic][PATCH 0/1] UBUNTU: SAUCE: PCI / PM: Check device_may_wakeup() in pci_enable_wake()

Khaled Elmously khalid.elmously at canonical.com
Thu May 17 04:40:18 UTC 2018


On 2018-05-11 14:41:52 , Joseph Salisbury wrote:
> BugLink: http://bugs.launchpad.net/bugs/1765646
> 
> == SRU Justification ==
> A regression was introduced in 4.13-rc1 and newer kernels.  This
> regression caused battery drain during system suspend, hibernation or 
> shutdown for some PCI devices that are not allowed by user space to wake 
> up the system from sleep (or power off).
> 
> This fix has been submitted upstream and cc'd to stable.  However, it
> has not landed in linux-next or mainline yet, so it is being sent as
> SAUCE.
> 
> == Fix ==
> UBUNTU: SAUCE: PCI / PM: Check device_may_wakeup() in pci_enable_wake()
> 
> == Regression Potential ==
> Medium.  Commit fixes a current regresssion, but affects PCI power management.  
> It will also be submitted to upstream stable and have additional review.
> The commit is a clean cherry pick, builds successfully and was confirmed
> to resolve regression.
> 
> == Test Case ==
> A test kernel was built with this patch and tested by the original bug reporter.
> The bug reporter states the test kernel resolved the bug.
> 
> Rafael J. Wysocki (1):
>   PCI / PM: Check device_may_wakeup() in pci_enable_wake()
> 
>  drivers/pci/pci.c | 29 +++++++++++++++++++++++------
>  1 file changed, 23 insertions(+), 6 deletions(-)
> 
Acked-by: Khalid Elmously <khalid.elmously at canonical.com>





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