netdev - RE: [PATCH net-next] lan78xx: Lan7801 Support for Fixed PHY

lists.openwall.net		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] [thread-next>] [day] [month] [year] [list]

Message-ID: <0573C9D4B793EF43BF95221F2F4CC85153E14C@CHN-SV-EXMX06.mchp-main.com>
Date:   Wed, 25 Apr 2018 17:04:33 +0000
From:   <RaghuramChary.Jallipalli@...rochip.com>
To:     <andrew@...n.ch>
CC:     <davem@...emloft.net>, <netdev@...r.kernel.org>,
        <UNGLinuxDriver@...rochip.com>, <Woojung.Huh@...rochip.com>
Subject: RE: [PATCH net-next] lan78xx: Lan7801 Support for Fixed PHY

Hi Andrew,
> > >
> > dev->fixedphy stores the fixed phydev, which will be passed to the
> > fixed_phy_unregister routine , so I think phy_is_pseudo_fixed_link check
> is not necessary.
> 
> I'm saying you can get rid of dev->fixedphy, and just use
> netdev->phydev, and phy_is_pseudo_fixed_link(netdev->phydev)
> 
After phy_disconnect() , the netdev->phydev becomes null, but the phydev->mdio instances
are still valid. So I'm saving the phydev ptr and passing to unregister the fixed phy.
If I try to unregister first and disconnect, I see panic at sysfs remove link. 
I believe having dev->fixedphy should not cause any problem.

Thanks,
Raghu