APPLIED: [PATCH 0/1][SRU][N] a critical typo in the code managing the ASPM settings for PCI Express devices

[Stefan Bader]

On 04.07.24 08:43, AceLan Kao wrote:
> From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/2071889
> 
> [Impact]
> The typo in the original code led to the PCI_EXP_LNKCTL register values
> being swapped between the parent PCI device and its child device.
> It may lead to incorrect power state, device malfunction on system
> resume, or potential data loss or system stability issues.
> 
> [Fix]
> Kaiheng submitted a patch to fix the issue and has been included in v6.9
> mainline kernel.
> f3d049b35b01 PCI/ASPM: Restore parent state to parent, child state to child
> 
> [Test]
> There is no test cases for the issue now.
> 
> [Where problems may occur]
> It fixes the typo and should not introduce any regression.
> 
> Kai-Heng Feng (1):
>    PCI/ASPM: Restore parent state to parent, child state to child
> 
>   drivers/pci/pcie/aspm.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 

Applied to noble:linux/master-next. Thanks.

-Stefan

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