linux-kernel - Re: [PATCH v5 02/23] of: device: Export of_device_{get_modalias, uvent

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Message-ID: <CAGb2v66C15fU1b2+xNDV8Fv2kmmKXyUknA8=9wXztUcs8CNKLg@mail.gmail.com>
Date:   Mon, 7 Nov 2016 09:56:26 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Peter Chen <hzpeterchen@...il.com>
Cc:     Stephen Boyd <stephen.boyd@...aro.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Neil Armstrong <narmstrong@...libre.com>,
        linux-arm-msm@...r.kernel.org,
        linux-usb <linux-usb@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>, Peter Chen <peter.chen@....com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Andy Gross <andy.gross@...aro.org>,
        devicetree <devicetree@...r.kernel.org>,
        Felipe Balbi <balbi@...nel.org>
Subject: Re: [PATCH v5 02/23] of: device: Export of_device_{get_modalias,
 uvent_modalias} to modules

On Mon, Nov 7, 2016 at 9:29 AM, Peter Chen <hzpeterchen@...il.com> wrote:
> On Fri, Nov 04, 2016 at 01:51:34PM -0700, Stephen Boyd wrote:
>> Quoting Peter Chen (2016-10-24 18:16:32)
>> > On Mon, Oct 24, 2016 at 12:48:24PM -0700, Stephen Boyd wrote:
>> > > Quoting Chen-Yu Tsai (2016-10-24 05:19:05)
>> > > > Hi,
>> > > >
>> > > > On Tue, Oct 18, 2016 at 9:56 AM, Stephen Boyd <stephen.boyd@...aro.org> wrote:
>> > > > > 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>
>> > > > > ---
>> > > > >  drivers/of/device.c | 2 ++
>> > > > >  1 file changed, 2 insertions(+)
>> > > > >
>> > > > > diff --git a/drivers/of/device.c b/drivers/of/device.c
>> > > > > index 8a22a253a830..6719ab35b62e 100644
>> > > > > --- a/drivers/of/device.c
>> > > > > +++ b/drivers/of/device.c
>> > > > > @@ -225,6 +225,7 @@ ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len)
>> > > > >
>> > > > >         return tsize;
>> > > > >  }
>> > > > > +EXPORT_SYMBOL_GPL(of_device_get_modalias);
>> > > > >
>> > > > >  int of_device_request_module(struct device *dev)
>> > > > >  {
>> > > > > @@ -290,6 +291,7 @@ void of_device_uevent(struct device *dev, struct kobj_uevent_env *env)
>> > > > >         }
>> > > > >         mutex_unlock(&of_mutex);
>> > > > >  }
>> > > > > +EXPORT_SYMBOL_GPL(of_device_uevent_modalias);
>> > > >
>> > > > This is trailing the wrong function.
>> > > >
>> > >
>> > > Good catch. Must have been some bad rebase.
>> > >
>> > > Peter, can you fix it while applying or should I resend this patch?
>> > >
>> >
>> > But, this is device tree patch. I can only get chipidea part and other
>> > USB patches if Greg agrees.
>> >
>>
>> Were you expecting Rob to take the drivers/of/* patches? Sorry I thought
>> Rob acked them so they could go through usb with the other changes.
>
> I am just worried about possible merge error when linus pulls both OF
> and USB tree. Greg, is it ok the OF patches through USB tree with OF
> maintainer's ack?

May I suggest putting the OF patches on an immutable branch so other
subsystems can pull them in without pulling in the USB patches? At
least I want to use them in the I2C subsystem, and in the sunxi-rsb
driver.


Regards
ChenYu