linux-kernel - build failure of next-20220823 due to d04807b80691 ("net: ethernet: ti: davinci

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Date:   Tue, 23 Aug 2022 15:13:35 +0100
From:   "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@...il.com>
To:     Ravi Gunasekaran <r-gunasekaran@...com>,
        "David S. Miller" <davem@...emloft.net>
Cc:     Grygorii Strashko <grygorii.strashko@...com>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, linux-omap@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-next@...r.kernel.org
Subject: build failure of next-20220823 due to d04807b80691 ("net: ethernet:
 ti: davinci_mdio: Add workaround for errata i2329")

Hi All,

The builds of arm davinci_all_defconfig, keystone_defconfig and
omap2plus_defconfig have failed to build next-20220823 with the error:

arm-linux-gnueabi-ld: drivers/net/ethernet/ti/davinci_mdio.o: in function `davinci_mdio_remove':
davinci_mdio.c:(.text+0x200): undefined reference to `free_mdio_bitbang'
arm-linux-gnueabi-ld: drivers/net/ethernet/ti/davinci_mdio.o: in function `davinci_mdiobb_read':
davinci_mdio.c:(.text+0x824): undefined reference to `mdiobb_read'
arm-linux-gnueabi-ld: drivers/net/ethernet/ti/davinci_mdio.o: in function `davinci_mdiobb_write':
davinci_mdio.c:(.text+0x8d4): undefined reference to `mdiobb_write'

git bisect pointed to d04807b80691 ("net: ethernet: ti: davinci_mdio: Add workaround for errata i2329").
And, reverting that commit has fixed the build failure.

I will be happy to test any patch or provide any extra log if needed.


--
Regards
Sudip