APPLIED[I]: [SRU] [I/J/Unstable/OEM-5.14] [PATCH 0/1] Workaround Realtek 8821CE freeze issue

[Kleber Souza]

On 22.12.21 07:37, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1927808
>
> [Impact]
> Systems equipped with Realtek 8821CE randomly freeze.
>
> [Fix]
> 8821CE seems to have trouble leaving ASPM L1, so do it manually to
> prevent it from dragging the entire system down.
>
> [Test]
> After the patch is applied, there's no more freezing when system is
> under stress test, idle, or surfing the web.
>
> [Wheres problems could occur]
> This approach will slightly increase power usage, so it's restricted to
> 8821CE on Intel based platform.
>
> Kai-Heng Feng (1):
>    rtw88: Disable PCIe ASPM while doing NAPI poll on 8821CE
>
>   drivers/net/wireless/realtek/rtw88/pci.c | 61 ++++++++----------------
>   drivers/net/wireless/realtek/rtw88/pci.h |  2 +
>   2 files changed, 21 insertions(+), 42 deletions(-)
>

Applied to impish:linux.

Thanks,
Kleber