linux-kernel - Re: [PATCH net 11/16] net: ethernet: marvell: mvneta: fix fixed-link phydev leaks

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Message-ID: <CA+G9fYu2SrkEHyAzF57xJz5WjgHv361qdL2wPqON_pGS4Vtxmw@mail.gmail.com>
Date:   Fri, 8 May 2020 03:35:02 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Johan Hovold <johan@...nel.org>
Cc:     linux- stable <stable@...r.kernel.org>,
        Sasha Levin <sashal@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Fugang Duan <fugang.duan@....com>,
        Pantelis Antoniou <pantelis.antoniou@...il.com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
        Lars Persson <lars.persson@...s.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Andrew Lunn <andrew@...n.ch>, Netdev <netdev@...r.kernel.org>,
        nios2-dev@...ts.rocketboards.org,
        open list <linux-kernel@...r.kernel.org>,
        linuxppc-dev@...ts.ozlabs.org, linux-mediatek@...ts.infradead.org,
        linux-renesas-soc@...r.kernel.org, linux-omap@...r.kernel.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, lkft-triage@...ts.linaro.org
Subject: Re: [PATCH net 11/16] net: ethernet: marvell: mvneta: fix fixed-link
 phydev leaks

On Thu, 7 May 2020 at 16:43, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
<trim>
> > >
> > > Greg, 3f65047c853a ("of_mdio: add helper to deregister fixed-link
> > > PHYs") needs to be backported as well for these.
> > >
> > > Original series can be found here:
> > >
> > >     https://lkml.kernel.org/r/1480357509-28074-1-git-send-email-johan@kernel.org
> >
> > Ah, thanks for that, I thought I dropped all of the ones that caused
> > build errors, but missed the above one.  I'll go take the whole series
> > instead.
>
> This should now all be fixed up, thanks.

While building kernel Image for arm architecture on stable-rc 4.4 branch
the following build error found.

of_mdio: add helper to deregister fixed-link PHYs
commit 3f65047c853a2a5abcd8ac1984af3452b5df4ada upstream.

Add helper to deregister fixed-link PHYs registered using
of_phy_register_fixed_link().

Convert the two drivers that care to deregister their fixed-link PHYs to
use the new helper, but note that most drivers currently fail to do so.

Signed-off-by: Johan Hovold <johan@...nel.org>
Signed-off-by: David S. Miller <davem@...emloft.net>
[only take helper function for 4.4.y - gregkh]

 # make -sk KBUILD_BUILD_USER=TuxBuild -C/linux -j16 ARCH=arm
CROSS_COMPILE=arm-linux-gnueabihf- HOSTCC=gcc CC="sccache
arm-linux-gnueabihf-gcc" O=build zImage
70 #
71 ../drivers/of/of_mdio.c: In function ‘of_phy_deregister_fixed_link’:
72 ../drivers/of/of_mdio.c:379:2: error: implicit declaration of
function ‘fixed_phy_unregister’; did you mean ‘fixed_phy_register’?
[-Werror=implicit-function-declaration]
73  379 | fixed_phy_unregister(phydev);
74  | ^~~~~~~~~~~~~~~~~~~~
75  | fixed_phy_register
76 ../drivers/of/of_mdio.c:381:22: error: ‘struct phy_device’ has no
member named ‘mdio’; did you mean ‘mdix’?
77  381 | put_device(&phydev->mdio.dev); /* of_phy_find_device() */
78  | ^~~~
79  | mdix

>
> greg k-h