Re: [net,PATCH v1] net: ks8851: Fix receiver error in 100BASE-TX mode following software power-down

From: Jakub Kicinski

Date: Fri Sep 04 2026 - 21:30:10 EST


On Sat, 5 Sep 2026 03:16:12 +0200 Marek Vasut wrote:
> On 9/4/26 2:37 AM, Jakub Kicinski wrote:
> > This is an AI-generated review of your patch.
>
> Sigh, a wall of generated text.

I'd feel bad if most of the patches I have to suffer thru
these days weren't entirely YOLO'ed slop where every lines comes
with a 15 line comment :/ (not speaking about your patch, just
a general vent)

> >> @@ -506,8 +503,6 @@ static int ks8851_net_stop(struct net_device *dev)
> >> /* shutdown TX process */
> >> ks8851_wrreg16(ks, KS_TXCR, 0x0000);
> >>
> >> - /* set powermode to soft power down to save power */
> >> - ks8851_set_powermode(ks, PMECR_PM_SOFTDOWN);
> >> ks8851_unlock(ks);
> >
> > [Severity: Low]
> > Related to the above: the kernel-doc for ks8851_net_stop() just above this
> > function still promises the low power transition that is being removed here:
> >
> > /**
> > * ks8851_net_stop - close network device
> > * @dev: The device being closed.
> > *
> > * Called to close down a network device which has been active. Cancel any
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
> > * work, shutdown the RX and TX process and then place the chip into a low
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvXXXX^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > * power state whilst it is not being used.\
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > */
> >
> > The post-patch body only masks IER/ISR, zeroes RXCR1/TXCR, drains ks->txq
> > and calls free_irq(), with no PMECR access left. Should that last sentence
> > be dropped or reworded to mention the errata, so readers of
> > ks8851_suspend()->ks8851_net_stop() are not told a low power transition
> > happens?
>
> What exactly should I adjust in V2 ?

Drop the part of the sentence in the ks8851_net_stop() kdoc that says
we'll put the device in low power mode?