lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:   Sun, 24 Feb 2019 21:56:46 +0100
From:   Maxime Chevallier <>
To:     Heiner Kallweit <>
Cc:     David Miller <>,
Subject: Re: marvell10g.c merge into net-next

Hello Dave, Heiner,

On Sun, 24 Feb 2019 21:35:11 +0100
Heiner Kallweit <> wrote:

>On 24.02.2019 21:15, David Miller wrote:
>> Heiner, please look at net-next which I just merged net into.
>> Net had a bug fix wherein the MDIO_AN_10GBT_CTRL_ADV_NBT_MASK
>> bits are cleared in the 10gbt control register to work around
>> a problem with some marvell10g phy chips.
>> In the merge I preserved your usage of the generic c45 helpers
>> in this area, but I suspect part of that will have to be undone
>> in order to accomodate the above fix.
>Thanks for the info. Let me add Maxime as author of the fix.
>I think we talk about his one "net: phy: marvell10g:
>Fix Multi-G advertisement to only advertise 10G" and we talk
>about net-next.
>IMO the proper way to fix this is removing the unsupported
>modes from phydev->advertising in config_init.
>Then mv3310_config_aneg doesn't have to be touched.
>A similar exercise I did here:
>0974f1f03b07 ("net: phy: aquantia: remove false 5G and 10G speed ability for AQCS109")

>From what I've seen and tested, the issue itself doesn't appear in
net-next, since mv3310_config_aneg calls the newly introduced
genphy_c45_an_config_aneg() which clears the 2.5G/5G advertising bits.

So the use of the generic C45 helpers should be enough to prevent the
issue from happening. The only difference really is that the -net patch
also masks the 2.5/5G Fast Retrain abilities, but this should make no
difference given that 2.5/5G are masked-out in both cases.

I'm sorry for the confusion, I wasn't sure how to deal with such a



Maxime Chevallier, Bootlin
Embedded Linux and kernel engineering

Powered by blists - more mailing lists