linux-kernel - Re: [PATCH net-next 3/6] net: phy: update in-band AN mode when changing interface by PHY driver

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Message-ID: <ZJRjd0oqj95U0nHc@shell.armlinux.org.uk>
Date:   Thu, 22 Jun 2023 16:06:31 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Simon Horman <simon.horman@...igine.com>
Cc:     Choong Yong Liang <yong.liang.choong@...ux.intel.com>,
        Rajneesh Bhardwaj <irenic.rajneesh@...il.com>,
        David E Box <david.e.box@...el.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Marek Behún <kabel@...nel.org>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Richard Cochran <richardcochran@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Wong Vee Khee <veekhee@...le.com>,
        Jon Hunter <jonathanh@...dia.com>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Revanth Kumar Uppala <ruppala@...dia.com>,
        Shenwei Wang <shenwei.wang@....com>,
        Andrey Konovalov <andrey.konovalov@...aro.org>,
        Jochen Henneberg <jh@...neberg-systemdesign.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org,
        platform-driver-x86@...r.kernel.org, linux-hwmon@...r.kernel.org,
        bpf@...r.kernel.org, Voon Wei Feng <weifeng.voon@...el.com>,
        "Tan, Tee Min" <tee.min.tan@...ux.intel.com>,
        Michael Sit Wei Hong <michael.wei.hong.sit@...el.com>,
        Lai Peter Jun Ann <jun.ann.lai@...el.com>
Subject: Re: [PATCH net-next 3/6] net: phy: update in-band AN mode when
 changing interface by PHY driver

On Thu, Jun 22, 2023 at 04:43:51PM +0200, Simon Horman wrote:
> On Thu, Jun 22, 2023 at 12:19:02PM +0800, Choong Yong Liang wrote:
> > From: "Tan, Tee Min" <tee.min.tan@...ux.intel.com>
> > 
> > Add cur_link_an_mode into phy_device struct for PHY drivers to
> > communicate the in-band AN mode setting with phylink framework.
> > 
> > As there is a mechanism in PHY drivers to switch the PHY interface
> > between SGMII and 2500BaseX according to link speed. In this case,
> > the in-band AN mode should be switching based on the PHY interface
> > as well, if the PHY interface has been changed/updated by PHY driver.
> > 
> > For e.g., disable in-band AN in 2500BaseX mode, or enable in-band AN
> > back for SGMII mode (10/100/1000Mbps).
> > 
> > Signed-off-by: Tan, Tee Min <tee.min.tan@...ux.intel.com>
> > Signed-off-by: Choong Yong Liang <yong.liang.choong@...ux.intel.com>
> 
> ...
> 
> > diff --git a/include/linux/phy.h b/include/linux/phy.h
> > index 11c1e91563d4..c685b526e307 100644
> > --- a/include/linux/phy.h
> > +++ b/include/linux/phy.h
> > @@ -756,6 +756,8 @@ struct phy_device {
> >  	/* MACsec management functions */
> >  	const struct macsec_ops *macsec_ops;
> >  #endif
> > +	/* For communicate the AN mode setting with phylink framework. */
> > +	u8 cur_link_an_mode;
> >  };
> 
> Hi Choong Yong Liang,
> 
> Please consider adding cur_link_an_mode to the kernel doc
> for struct phy_device - which is above the definition of struct phy_device.

This looks like it's grabbing something from phylink and stuffing it
into phylib.  However, I have no idea, because I don't seem to have
received the original patches. I'm guessing the reason is:

2023-06-22 05:21:24 1qCBoy-0003ji-G9 H=mga03.intel.com
[134.134.136.65]:57703 I=[78.32.30.218]:25
X=TLS1.2:ECDHE_SECP521R1__RSA_SHA512__AES_256_GCM:256
F=<yong.liang.choong@...ux.intel.com> rejected after DATA: unqualified
address not permitted: failing address in "Cc:" header is: Tan

Which I suspect came from:

	Tan, Tee Min <tee.min.tan@...ux.intel.com>

and someone doesn't realise that a "," in the display-name part of
an address *must* be quoted, otherwise "," is taken to be a separator
in the address list.

Consequently, it has now become:

	Tan@....codeaurora.org, Tee Min <tee.min.tan@...ux.intel.com>,

It should have been:

	"Tan, Tee Min" <tee.min.tan@...ux.intel.com>

with the double-quotes.

Please do not review this series further, but instead, please can the
author repost it forthwith with correct conformant headers so that a
proper review can be undertaken by all?

Thanks.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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