linux-kernel - Re: [PATCH net-next] net: macb: In shared MDIO usecase make MDIO producer ethernet node to probe first

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Message-ID: <20220628220846.25025a22@kernel.org>
Date:   Tue, 28 Jun 2022 22:08:46 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Radhey Shyam Pandey <radhey.shyam.pandey@....com>
Cc:     <nicolas.ferre@...rochip.com>, <claudiu.beznea@...rochip.com>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <pabeni@...hat.com>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <git@....com>, <harini.katakam@....com>
Subject: Re: [PATCH net-next] net: macb: In shared MDIO usecase make MDIO
 producer ethernet node to probe first

On Tue, 28 Jun 2022 23:38:54 +0530 Radhey Shyam Pandey wrote:
> In shared MDIO suspend/resume usecase for ex. with MDIO producer
> (0xff0c0000) eth1 and MDIO consumer(0xff0b0000) eth0 there is a
> constraint that ethernet interface(ff0c0000) MDIO bus producer
> has to be resumed before the consumer ethernet interface(ff0b0000).

ERROR: modpost: "device_is_bound" [drivers/net/ethernet/cadence/macb.ko] undefined!
make[2]: *** [../scripts/Makefile.modpost:128: modules-only.symvers] Error 1
make[1]: *** [/home/nipa/net-next/Makefile:1757: modules] Error 2
make: *** [Makefile:219: __sub-make] Error 2