linux-kernel - Re: [PATCH 07/25] media: i2c: imx355: silence unused acpi_device

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Date:   Tue, 22 Sep 2020 13:56:59 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc:     Pavel Machek <pavel@....cz>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Tianshu Qiu <tian.shu.qiu@...el.com>,
        Dongchun Zhu <dongchun.zhu@...iatek.com>,
        Shawn Tu <shawnx.tu@...el.com>,
        Ricardo Ribalda <ribalda@...nel.org>,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Bingbu Cao <bingbu.cao@...el.com>,
        Rui Miguel Silva <rmfrfs@...il.com>,
        Shunqian Zheng <zhengsq@...k-chips.com>,
        Chiranjeevi Rapolu <chiranjeevi.rapolu@...el.com>,
        Hyungwoo Yang <hyungwoo.yang@...el.com>,
        Wenyou Yang <wenyou.yang@...rochip.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Marco Felsch <m.felsch@...gutronix.de>,
        linux-media@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 07/25] media: i2c: imx355: silence unused acpi_device_id warning

On Tue, 22 Sep 2020 at 11:37, Sakari Ailus <sakari.ailus@...ux.intel.com> wrote:
>
> Hi Krzysztof,
>
> Thanks for the patchset!
>
> I believe the I涎 client has been dug up first as we've been dealing with
> I涎 devices all the time, and it's been a pattern. I don't see that as a
> reason to reject the patches either though, it definitely cleans up the
> drivers.
>
> On Mon, Sep 21, 2020 at 06:23:24PM +0200, Krzysztof Kozlowski wrote:
> > If driver is built without ACPI, the struct acpi_device_id won't be
> > used:
> >
> >   drivers/media/i2c/imx355.c:1836:36: warning:
> >     'imx355_acpi_ids' defined but not used [-Wunused-const-variable=]
> >
> > Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> > ---
> >  drivers/media/i2c/imx355.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/media/i2c/imx355.c b/drivers/media/i2c/imx355.c
> > index 51245e71b411..8db287251f49 100644
> > --- a/drivers/media/i2c/imx355.c
> > +++ b/drivers/media/i2c/imx355.c
> > @@ -1833,7 +1833,7 @@ static const struct dev_pm_ops imx355_pm_ops = {
> >       SET_SYSTEM_SLEEP_PM_OPS(imx355_suspend, imx355_resume)
> >  };
> >
> > -static const struct acpi_device_id imx355_acpi_ids[] = {
> > +static const struct acpi_device_id imx355_acpi_ids[]__maybe_unused = {
>
> A space before __ perhaps?
>
> Albeit this seems to be all, I can address that while applying if that's
> ok.

Yes, there should be a space here. Let me know if I should send v2.

Best regards,
Krzysztof