APPLIED[N]: [SRU][N/M/J][PATCH 0/1] RTL8852BE fw security fail then lost WIFI function during suspend/resume cycle

[Roxana Nicolescu]

On 23/04/2024 04:18, Hui Wang wrote:
> BugLink: https://bugs.launchpad.net/bugs/2063096
>
> [Impact]
>
> On a Dell laptop, When we do suspend/resume test, we found the
> realtek wifi couldn't work after resume, from the dmesg, we found
> the error log as below:
> Log:
> 三 05 15:08:02 u-Precision-3591 kernel: rtw89_8852be 0000:02:00.0: fw security fail
> 三 05 15:08:02 u-Precision-3591 kernel: rtw89_8852be 0000:02:00.0: download firmware fail
> 三 05 15:08:02 u-Precision-3591 kernel: rtw89_8852be 0000:02:00.0: [ERR]fwdl 0x1E0 = 0x62
> 三 05 15:08:02 u-Precision-3591 kernel: rtw89_8852be 0000:02:00.0: [ERR]fwdl 0x83F2 = 0x8
>
> [Fix]
>
> Backport a commit from mainline kernel (linux-next), this will retry firmware
> loading for 5 times.
>
> [Test Case]
>
> run suspend/resume test case for over 100 times, the wifi still
> works.
>
> [Where problems could occur]
>
> This commit comes from mailine kernel, and it doesn't change existing
> driver except loading firmware a couple of more times if there is an error.
> In theory this will not introduce regression.
>
>
> Chia-Yuan Li (1):
>    wifi: rtw89: download firmware with five times retry
>
>   drivers/net/wireless/realtek/rtw89/fw.c | 27 +++++++++++++++++++------
>   1 file changed, 21 insertions(+), 6 deletions(-)
>
Applied to noble master-next branch. Thanks!