[PATCH] ath11k: enable IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS for WCN6855

[Wen Gong]

On 12/3/2021 10:09 PM, Sven Eckelmann wrote:
> On Monday, 29 November 2021 11:13:09 CET Wen Gong wrote:
...
> I've tested this on ath-next on commit a93789ae541c ("ath11k: Avoid NULL ptr
> access during mgmt tx cleanup") with a WCN6856 card (EmWicon/jjplus WMX7205)
> with firmware WLAN.HSP.1.1-02892.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1. ath-next
> was required for me because 32 MSI vectors are not available on the
> used system.
>
> Without this patch, it works fine. With patch, I just have to connect to an AP
> via wpa_supplicant to crash the system. See the attached x86-64 .config, the
> stacktrace and the decoded stacktrace.

I did test in my setup, not see the crash.

I am afraid you also need this patch("ath11k: change to use dynamic 
memory for channel list of scan",

https://patchwork.kernel.org/project/linux-wireless/patch/20211129110939.15711-1-quic_wgong@quicinc.com 
)

Could you apply this patch and try again?

> Kind regards,
> 	Sven