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    SubjectRe: [PATCH 4.19 041/133] Revert "usb/ohci-platform: Fix a warning when hibernating"
    Hi!

    > > > >After some investigations, we concluded the following:
    > > > > - the issue does not exist in vanilla v5.8-rc4+
    > > > > - [bisecting shows that] the panic on v4.14.186 is caused by the lack
    > > > > of v5.6-rc1 commit 987351e1ea7772 ("phy: core: Add consumer device
    > > > > link support"). Getting evidence for that is easy. Reverting
    > > > > 987351e1ea7772 in vanilla leads to a similar backtrace [2].
    > > > >
    > > > >Questions:
    > > > > - Backporting 987351e1ea7772 ("phy: core: Add consumer device
    > > > > link support") to v4.14.187 looks challenging enough, so probably not
    > > > > worth it. Anybody to contradict this?
    > >
    > > I'm not sure about v4.14.187, but backport to v4.19 is quite simple
    > > (just ignore single non-existing file) and passes basic testing.
    > >
    > > Would that be better solution for 4.19 and newer?
    >
    > If Eugeniu could confirm that doing so on 4.19+ works for him, sure.

    He did:

    Message-ID: <20200721065054.GA8290@lxhi-065.adit-jv.com>
    Technically yes. Backporting 987351e1ea7772 to v4.19.x avoids the panic.
    ...
    FWIW I confirm that:
    * setup [A] leads to the issue reported in [C]
    * setup [B] resolves the issue reported in [C]

    [A] v4.19 + 16bdc04cc98 + 1cb3b0095c3 + 79112cc3c29f
    [B] v4.19 + 16bdc04cc98 + 1cb3b0095c3 + 79112cc3c29f + 987351e1ea7
    [C] https://lore.kernel.org/linux-usb/20200709070023.GA18414@lxhi-065.adit-jv.com/


    Best regards,
    Pavel

    --
    DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
    HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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