linux-kernel - Re: [PATCH v1 14/16] soundwire: Use acpi_dev_for_each

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Date:   Thu, 9 Jun 2022 19:35:40 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        "moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..." 
        <alsa-devel@...a-project.org>, Linux PM <linux-pm@...r.kernel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        Vinod Koul <vkoul@...nel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Sanyog Kale <sanyog.r.kale@...el.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>
Subject: Re: [PATCH v1 14/16] soundwire: Use acpi_dev_for_each_child()

On Thu, Jun 9, 2022 at 6:21 PM Pierre-Louis Bossart
<pierre-louis.bossart@...ux.intel.com> wrote:
>
>
> >> Shouldn't the return of sdw_acpi_find_one() be trapped, e.g. with
> >>
> >> return acpi_dev_for_each_child(parent, sdw_acpi_find_one, bus);
> >
> > Sure, I'll do that.  Thanks!
>
> I also added this EXPORT_SYMBOL to work-around link errors, not sure if
> this is in your tree already?

One of the previous patches in the series is adding the export.

> diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
>
> index 86fa61a21826c..ade6259c19af6 100644
>
> --- a/drivers/acpi/bus.c
>
> +++ b/drivers/acpi/bus.c
>
> @@ -1113,6 +1113,7 @@ int acpi_dev_for_each_child(struct acpi_device *adev,
>
>
>
>         return device_for_each_child(&adev->dev, &adwc,
> acpi_dev_for_one_check);
>
>  }
>
> +EXPORT_SYMBOL_GPL(acpi_dev_for_each_child);
>
>