[PATCH 10/10] wifi: mt76: mt7996: add sanity check for NAPI schedule
Shayne Chen (陳軒丞)
Shayne.Chen at mediatek.com
Sun Apr 7 22:57:42 PDT 2024
On Wed, 2024-04-03 at 12:57 +0200, Felix Fietkau wrote:
>
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> On 20.03.24 12:09, Shayne Chen wrote:
> > From: Henry Yen <henry.yen at mediatek.com>
> >
> > It's observed that host driver might occasionally receive
> > interrupts from unexpected Rx ring, whose Rx NAPI hasn't been
> > prepared yet. Under such situation, __napi_poll crash issue
> > would occur, so we add a sanity check to prevent it.
> >
> > Without this patch, we might encounter kernel crash issue
> > especially in WED-on & RRO-on software path.
>
> Does this issue occur even with Lorenzo's fix "wifi: mt76: mt7996:
> fix
> uninitialized variable in mt7996_irq_tasklet()"?
>
They achieve the same purpose, please drop this patch.
Thanks,
Shayne
> - Felix
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