From: Marek Vasut <marex@nabladev.com>
To: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org, davem@davemloft.net,
andrew+netdev@lunn.ch, edumazet@google.com, pabeni@redhat.com,
bigeasy@linutronix.de, yiconghui@gmail.com,
kernel@dh-electronics.com, linux-kernel@vger.kernel.org
Subject: Re: [net,PATCH v1] net: ks8851: Fix receiver error in 100BASE-TX mode following software power-down
Date: Sat, 5 Sep 2026 15:01:46 +0200 [thread overview]
Message-ID: <8622fe1a-38ca-46d5-809f-94bc1f1ec159@nabladev.com> (raw)
In-Reply-To: <20260904182812.303b91c0@kernel.org>
On 9/5/26 3:28 AM, Jakub Kicinski wrote:
> 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)
I do understand.
This happens in other areas/projects too, although it seems netdev is
really pummeled by this.
>>>> @@ -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?
I will do so in V2. I appreciate the human feedback. Thank you.
prev parent reply other threads:[~2026-09-05 13:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-01 17:39 Marek Vasut
2026-09-01 19:47 ` Sebastian Andrzej Siewior
2026-09-04 0:37 ` Jakub Kicinski
2026-09-05 1:16 ` Marek Vasut
2026-09-05 1:28 ` Jakub Kicinski
2026-09-05 13:01 ` Marek Vasut [this message]
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