Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <c0220ac1-147f-6521-a463-1d7c3e126661@broadcom.com>
Date:   Mon, 12 Jun 2023 16:00:01 -0700
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0)
 Gecko/20100101 Thunderbird/102.11.2
Subject: Re: [PATCH net-next] ethtool: ioctl: account for sopass diff in
 set_wol
To:     Andrew Lunn <andrew@lunn.ch>
Cc:     netdev@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Daniil Tatianin <d-tatianin@yandex-team.ru>,
        Marco Bonelli <marco@mebeim.net>,
        Vincent Mailhol <mailhol.vincent@wanadoo.fr>,
        Maxim Korotkov <korotkov.maxim.s@gmail.com>,
        Gal Pressman <gal@nvidia.com>, Jiri Pirko <jiri@resnulli.us>,
        Kuniyuki Iwashima <kuniyu@amazon.com>,
        Simon Horman <simon.horman@corigine.com>,
        Florian Fainelli <florian.fainelli@broadcom.com>,
        open list <linux-kernel@vger.kernel.org>
References: <1686605822-34544-1-git-send-email-justin.chen@broadcom.com>
 <9ec8eac3-6b2f-4455-89ef-2d5768b4cee9@lunn.ch>
From:   Justin Chen <justin.chen@broadcom.com>
In-Reply-To: <9ec8eac3-6b2f-4455-89ef-2d5768b4cee9@lunn.ch>
Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256;
        boundary="000000000000f2f64c05fdf6ada8"
Precedence: bulk

--000000000000f2f64c05fdf6ada8
Content-Language: en-US
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit


On 6/12/23 3:28 PM, Andrew Lunn wrote:
> On Mon, Jun 12, 2023 at 02:37:00PM -0700, Justin Chen wrote:
>> sopass won't be set if wolopt doesn't change. This means the following
>> will fail to set the correct sopass.
>> ethtool -s eth0 wol s sopass 11:22:33:44:55:66
>> ethtool -s eth0 wol s sopass 22:44:55:66:77:88
>>
>> Make sure we call into the driver layer set_wol if sopass is different.
>>
>> Fixes: 55b24334c0f2 ("ethtool: ioctl: improve error checking for set_wol")
>> Signed-off-by: Justin Chen <justin.chen@broadcom.com>
>> ---
>>
>> Note: Tagged "Fixes" patch has not hit rc yet.
>>
>>   net/ethtool/ioctl.c | 3 ++-
> 
> Hi Justin
> 
> Does the netlink version get this correct?
>

Yup netlink gets this correct

> And just for my own curiosity, why are you so interested in the ioctl
> version, which is deprecated and not used by modern versions of
> ethtool?
>
No particular reason. I was working on another driver and was planning 
to remove the set_wol error checking in the driver layer when I realized 
netlink set_wol was already doing it. Then on further inspection I 
noticed the ioctl version doesn't do the same thing.

Justin

> 	Andrew

--000000000000f2f64c05fdf6ada8
Content-Type: application/pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"
Content-Description: S/MIME Cryptographic Signature
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--000000000000f2f64c05fdf6ada8--