From: "Petr Štetiar" <ynezz@true.cz>
To: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org,
Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Frank Rowand <frowand.list@gmail.com>,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
Alban Bedel <albeu@free.fr>, Felix Fietkau <nbd@nbd.name>,
John Crispin <john@phrozen.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 01/10] of_net: add NVMEM support to of_get_mac_address
Date: Fri, 3 May 2019 17:44:07 +0200 [thread overview]
Message-ID: <20190503154407.GE71477@meh.true.cz> (raw)
In-Reply-To: <20190503143643.hhfamnptcuriav4k@flea>
Maxime Ripard <maxime.ripard@bootlin.com> [2019-05-03 16:36:43]:
Hi,
...
> > + pp = devm_kzalloc(&pdev->dev, sizeof(*pp), GFP_KERNEL);
> > + if (!pp)
> > + return ERR_PTR(-ENOMEM);
> > +
> > + pp->name = "nvmem-mac-address";
> > + pp->length = ETH_ALEN;
> > + pp->value = devm_kmemdup(&pdev->dev, mac, ETH_ALEN, GFP_KERNEL);
> > + if (!pp->value) {
> > + ret = -ENOMEM;
> > + goto free;
> > + }
> > +
> > + ret = of_add_property(np, pp);
> > + if (ret)
> > + goto free;
> > +
> > + return pp->value;
>
> I'm not sure why you need to do that allocation here, and why you need
> to modify the DT?
I was asked about that in v2[0] already, so just copy&pasting relevant part of
my response here:
I've just carried it over from v1 ("of_net: add mtd-mac-address support to
of_get_mac_address()")[1] as nobody objected about this so far.
Honestly I don't know if it's necessary to have it, but so far address,
mac-address and local-mac-address properties provide this DT nodes, so I've
simply thought, that it would be good to have it for MAC address from NVMEM as
well in order to stay consistent.
[...]
0. https://patchwork.ozlabs.org/patch/1092248/#2164089
1. https://patchwork.ozlabs.org/patch/1086628/
> can't you just return the mac address directly since it's what the
> of_get_mac_address caller will expect anyway?
I don't need this stuff, I can remove it, please just tell me what is
appropriate and I'm going to do that.
-- ynezz
next prev parent reply other threads:[~2019-05-03 15:44 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1556893635-18549-1-git-send-email-ynezz@true.cz>
2019-05-03 14:27 ` [PATCH v4 01/10] of_net: add NVMEM support to of_get_mac_address Petr Štetiar
2019-05-03 14:36 ` Maxime Ripard
2019-05-03 15:44 ` Petr Štetiar [this message]
2019-05-06 14:04 ` Maxime Ripard
2019-05-03 14:27 ` [PATCH v4 02/10] dt-bindings: doc: reflect new NVMEM of_get_mac_address behaviour Petr Štetiar
2019-05-07 16:44 ` Rob Herring
2019-05-08 8:41 ` Petr Štetiar
2019-05-08 11:48 ` Andrew Lunn
2019-05-03 14:27 ` [PATCH v4 03/10] net: macb: support of_get_mac_address new ERR_PTR error Petr Štetiar
2019-05-03 14:27 ` [PATCH v4 04/10] net: davinci: " Petr Štetiar
2019-05-03 14:27 ` [PATCH v4 06/10] net: usb: " Petr Štetiar
2019-05-03 14:27 ` [PATCH v4 07/10] net: wireless: " Petr Štetiar
2019-05-06 7:59 ` Kalle Valo
2019-05-03 14:27 ` [PATCH v4 08/10] staging: octeon-ethernet: " Petr Štetiar
2019-05-03 15:32 ` [PATCH v5] " Petr Štetiar
2019-05-03 14:27 ` [PATCH v4 09/10] ARM: Kirkwood: " Petr Štetiar
2019-05-03 14:27 ` [PATCH v4 10/10] powerpc: tsi108: " Petr Štetiar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190503154407.GE71477@meh.true.cz \
--to=ynezz@true.cz \
--cc=albeu@free.fr \
--cc=andrew@lunn.ch \
--cc=devicetree@vger.kernel.org \
--cc=f.fainelli@gmail.com \
--cc=frowand.list@gmail.com \
--cc=hkallweit1@gmail.com \
--cc=john@phrozen.org \
--cc=linux-kernel@vger.kernel.org \
--cc=maxime.ripard@bootlin.com \
--cc=nbd@nbd.name \
--cc=netdev@vger.kernel.org \
--cc=robh+dt@kernel.org \
--cc=srinivas.kandagatla@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).