[PATCH] wifi: ath11k: pci: Fix msi_irq crash on driver unload with QCN9074 PCIe WiFi 6 modules

[Baochen Qiang]

On 4/24/2025 5:49 PM, Baochen Qiang wrote:
> 
> 
> On 4/24/2025 5:25 PM, Balsam Chihi wrote:
>> Hello,
>>
>> @Baochen Qiang,
>> Thank you for your feedback.
>> I tested unloading and reloading the driver and it is enumerated,
>> detected and operating correctly.
> 
> Different hardware platforms may have different behaviors ...
> 
>> And I understand your concern about other chips, and certainly it is
>> not the best way to implement such a fix.
>> I will continue debugging to determine the root cause of the
>> synchronous external abort.
>> So this patch is now just a workaround to fix the kernel crash when
>> rmmod the driver and reboot the system,
>> that i wanted to share with you to attract your attention to the
>> problem, and seek for help.
>>
>> @Vasanthakumar Thiagarajan,
>> Thank you too for your feedback.
>> Yes, I understand.
>> I will enable the debug_mask and check the logs, like you said.
>>
>> I'm wondering if anyone else has the same problem with ath11k_pci.a
> 
> There is another issue report with the soc_global_reset register, although it is reported
> on another hardware.

forget the link:

https://lists.infradead.org/pipermail/ath12k/2025-January/005244.html

> 
> Vasanth, could you check if the register address is correctly defined for QCN9074?
> 
> #define PCIE_SOC_GLOBAL_RESET			0x3008
> 
>>
>> I will keep you updated.
>>
>> Balsam.
> 
>