Neal Sidhwaney <nealsid@xxxxxxxxx> wrote:
> In brcmf_chip_recognition(), the return value from an MMIO read is
> interpreted as various fields without checking if it failed, which is
> harmless today, as the interpreted fields are checked for validity a
> few lines below. However, in corner cases (on my MacbookPro 14,1,
> sometimes after waking from sleep or soft reboot), when this happens,
> it causes the logging to be misleading, because the message indicates
> an unsupported chip type ("brcmfmac: brcmf_chip_recognition: chip
> backplane type 15 is not supported"). This patch detects this case
> slightly earlier and logs an appropriate message, with the same return
> result as is the case today.
>
> Signed-off-by: Neal Sidhwaney <nealsid@xxxxxxxxx>
Patch applied to wireless-next.git, thanks.
f8f912bf69a0 wifi: brcmfmac: Detect corner error case earlier with log
--
https://patchwork.kernel.org/project/linux-wireless/patch/20230603060021.57225-1-nealsid@xxxxxxxxx/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
