Felix Fietkau <nbd@xxxxxxxx> writes:
> If mcu_skb_prepare_msg is not implemented, incrementing skb refcount does not
> work for mcu message retry. In some cases (e.g. on SDIO), shared skbs can trigger
> a BUG_ON, crashing the system.
> Fix this by only incrementing refcount if retry is actually supported.
>
> Fixes: 3688c18b65ae ("wifi: mt76: mt7915: retry mcu messages")
> Reported-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx> #KernelCI
> Tested-by: Alper Nebi Yasak <alpernebiyasak@xxxxxxxxx>
> Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
I'll queue this to wireless tree and add:
Closes: https://lore.kernel.org/r/d907b13a-f8be-4cb8-a0bb-560a21278041@notapiano/
Ok?
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