linux-kernel - Re: linux-next: build failure after merge of the tty tree

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Message-ID: <CAL_JsqJnzCNtg19jKekzQyMO6fuqt3b1JU-ps=5MJByKGC1xLg@mail.gmail.com>
Date:   Mon, 6 Feb 2017 08:09:16 -0600
From:   Rob Herring <robh@...nel.org>
To:     Greg KH <greg@...ah.com>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        linux-next <linux-next@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Sebastian Reichel <sre@...nel.org>
Subject: Re: linux-next: build failure after merge of the tty tree

On Mon, Feb 6, 2017 at 2:51 AM, Greg KH <greg@...ah.com> wrote:
> On Mon, Feb 06, 2017 at 03:22:09PM +1100, Stephen Rothwell wrote:
>> Hi Greg,
>>
>> After merging the tty tree, today's linux-next build (x86_64 allmodconfig)
>> failed like this:
>>
>> ERROR: "of_device_uevent_modalias" [drivers/tty/serdev/serdev.ko] undefined!
>> ERROR: "of_device_get_modalias" [drivers/tty/serdev/serdev.ko] undefined!
>>
>> Caused by commit
>>
>>   cd6484e1830b ("serdev: Introduce new bus for serial attached devices")
>>
>> I have used the tty tree from next-20170203 for today.
>
> Ugh, how has this been passing the 0-day bot builds succesfully?
>
> Rob, any ideas?

It didn't, but we happened to already have a fix queued up for 4.11.
The fix is in your usb-next branch:

commit 7a3b7cd332db08546f3cdd984f11773e0d1999e7
Author: Stephen Boyd <stephen.boyd@...aro.org>
Date:   Wed Dec 28 14:56:48 2016 -0800

    of: device: Export of_device_{get_modalias, uvent_modalias} to modules

    The ULPI bus can be built as a module, and it will soon be
    calling these functions when it supports probing devices from DT.
    Export them so they can be used by the ULPI module.

    Acked-by: Rob Herring <robh@...nel.org>
    Cc: <devicetree@...r.kernel.org>
    Signed-off-by: Stephen Boyd <stephen.boyd@...aro.org>
    Signed-off-by: Peter Chen <peter.chen@....com>

Rob