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

[Baochen Qiang]

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.

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.