[PATCH v6.1] wifi: ath11k: mac: fix reading 16 bytes from a region of size 0 warning

[Kalle Valo]

Kalle Valo <kvalo at kernel.org> writes:

> From: Kalle Valo <quic_kvalo at quicinc.com>
>
> Linaro reported stringop-overread warnings in ath11k (this is one of many):
>
> drivers/net/wireless/ath/ath11k/mac.c:2238:29: error: 'ath11k_peer_assoc_h_he_limit' reading 16 bytes from a region of size 0 [-Werror=stringop-overread]
>
> My further investigation showed that these warnings happen on GCC 11.3 but not
> with GCC 12.2, and with only the kernel config Linaro provided:
>
> https://builds.tuxbuild.com/2F4W7nZHNx3T88RB0gaCZ9hBX6c/config
>
> I saw the same warnings both with arm64 and x86_64 builds but couldn't figure
> out what exactly triggers the warnings, or why I didn't see them earlier.
> Nobody else has reported this either. This is also why I can't provide a Fixes
> tag as I don't know what's causing this. The function hasn't been touched for
> a year.

Thanks to Arnd I found out that KASAN caused this so I'll update the
commit log in this regard.

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