patch 46/47 causes NULL pointer deref on mt7921

[Bert Karwatzki]

Am Donnerstag, dem 11.07.2024 um 18:40 -0500 schrieb Sean Wang:
> Hi Bert,
>
> Thanks for the detailed debug log. I've quickly made a change to fix
> the issue. Right now, I can't access the test environment, but I'll
> test it and send it out as soon as possible. Here's the patch.
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> index 2e6268cb06c0..1bab93d049df 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
> @@ -303,6 +303,7 @@ mt7921_add_interface(struct ieee80211_hw *hw,
> struct ieee80211_vif *vif)
>
>         mvif->bss_conf.mt76.omac_idx = mvif->bss_conf.mt76.idx;
>         mvif->phy = phy;
> +       mvif->bss_conf.vif = mvif;
>         mvif->bss_conf.mt76.band_idx = 0;
>         mvif->bss_conf.mt76.wmm_idx = mvif->bss_conf.mt76.idx %
> MT76_CONNAC_MAX_WMM_SETS;
>

I tested your patch with linux-next-20240711 where it works fine and with linux-
next-20240712 where the mediatek related error are solved, too, but gdm hangs on
startup (with no related log messages, which I'm sure is a different problem).

Bert Karwatzki