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    SubjectRe: [PATCH] android: binder: fix type mismatch warning
    On Mon, Sep 18, 2017 at 4:02 PM, Greg Kroah-Hartman
    <gregkh@linuxfoundation.org> wrote:
    >> However, there is another problem with the Kconfig option: turning
    >> it on or off creates two incompatible ABI versions, a kernel that
    >> has this enabled cannot run user space that was built without it
    >> or vice versa. A better solution might be to leave the option hidden
    >> until the binder code is fixed to deal with both ABI versions.
    >
    > I don't know if that is ever going to be fixed, as it's not an issue
    > that you will ever see "in the wild" from what I can tell...

    Probably not on a native Android device or even a Chromebook that
    ships a binder user space together with a kernel, but what about
    people using "anbox" or similar projects that allow you to run
    Android apps in a container?

    It seems like a legitimate use case of the binder modules, but
    now there is a kernel Kconfig option that has to match a user
    space binary.

    Arnd

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