Fwd: Regression: Kernel 6.4 rc1 and higher causes Steam Deck to fail to wake from suspend (bisected)

From: Bagas Sanjaya
Date: Tue Oct 31 2023 - 04:21:37 EST


Hi,

I notice a regression report on Bugzilla [1]. Quoting from it:

> On Kernel 6.4 rc1 and higher if you put the Steam Deck into suspend then press the power button again it will not wake up.
>
> I don't have a clue as to -why- this commit breaks wake from suspend on steam deck, but it does. Bisected to:
>
> ```
> 1ad11eafc63ac16e667853bee4273879226d2d1b is the first bad commit
> commit 1ad11eafc63ac16e667853bee4273879226d2d1b
> Author: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> Date: Tue Mar 7 14:32:43 2023 -0600
>
> nvme-pci: drop redundant pci_enable_pcie_error_reporting()
>
> pci_enable_pcie_error_reporting() enables the device to send ERR_*
> Messages. Since f26e58bf6f54 ("PCI/AER: Enable error reporting when AER is
> native"), the PCI core does this for all devices during enumeration, so the
> driver doesn't need to do it itself.
>
> Remove the redundant pci_enable_pcie_error_reporting() call from the
> driver. Also remove the corresponding pci_disable_pcie_error_reporting()
> from the driver .remove() path.
>
> Note that this only controls ERR_* Messages from the device. An ERR_*
> Message may cause the Root Port to generate an interrupt, depending on the
> AER Root Error Command register managed by the AER service driver.
>
> Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> Reviewed-by: Chaitanya Kulkarni <kch@xxxxxxxxxx>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
>
> drivers/nvme/host/pci.c | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
> ```
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.4.y&id=1ad11eafc63ac16e667853bee4273879226d2d1b
>
> Reverting that commit by itself on top of 6.5.9 (stable) allows it to wake from suspend properly.

See Bugzilla for the full thread.

Anyway, I'm adding this regression to regzbot:

#regression introduced: 1ad11eafc63ac1 https://bugzilla.kernel.org/show_bug.cgi?id=218090
#regression title: Steam Deck fails to wake from suspend due to pci_enable_pcie_error_reporting() removal

Thanks.

[1]: https://bugzilla.kernel.org/show_bug.cgi?id=218090

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