linux-kernel - Re: [PATCH v2 1/3] ACPI: Move ACPI_DEVICE_CLASS() to mod

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Date:   Fri, 9 Jun 2023 19:32:53 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Damien Le Moal <dlemoal@...nel.org>,
        Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org, Hans de Goede <hdegoede@...hat.com>,
        Jens Axboe <axboe@...nel.dk>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>,
        Daniel Scally <djrscally@...il.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>
Subject: Re: [PATCH v2 1/3] ACPI: Move ACPI_DEVICE_CLASS() to mod_devicetable.h

On Fri, Jun 9, 2023 at 5:49 PM Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
>
> The data type of struct acpi_device_id is defined in the
> mod_devicetable.h. It's suboptimal to require user with
> the almost agnostic code to include acpi.h solely for the
> macro that affects the data type defined elsewhere.
>
> Taking into account the above and for the sake of consistency
> move ACPI_DEVICE_CLASS() to mod_devicetable.h.
>
> Note, that with CONFIG_ACPI=n the ID table will be filed with data
> but it does not really matter because either it won't be used, or
> won't be compiled in some cases (when guarded by respective ifdeffery).
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

or please let me know if you want me to apply this.

> ---
>  include/linux/acpi.h            | 14 --------------
>  include/linux/mod_devicetable.h | 13 +++++++++++++
>  2 files changed, 13 insertions(+), 14 deletions(-)
>
> diff --git a/include/linux/acpi.h b/include/linux/acpi.h
> index d41a05d68166..640f1c07c894 100644
> --- a/include/linux/acpi.h
> +++ b/include/linux/acpi.h
> @@ -70,19 +70,6 @@ static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
>         kfree(fwnode);
>  }
>
> -/**
> - * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
> - * the PCI-defined class-code information
> - *
> - * @_cls : the class, subclass, prog-if triple for this device
> - * @_msk : the class mask for this device
> - *
> - * This macro is used to create a struct acpi_device_id that matches a
> - * specific PCI class. The .id and .driver_data fields will be left
> - * initialized with the default value.
> - */
> -#define ACPI_DEVICE_CLASS(_cls, _msk)  .cls = (_cls), .cls_msk = (_msk),
> -
>  static inline bool has_acpi_companion(struct device *dev)
>  {
>         return is_acpi_device_node(dev->fwnode);
> @@ -782,7 +769,6 @@ const char *acpi_get_subsystem_id(acpi_handle handle);
>  #define ACPI_COMPANION_SET(dev, adev)  do { } while (0)
>  #define ACPI_HANDLE(dev)               (NULL)
>  #define ACPI_HANDLE_FWNODE(fwnode)     (NULL)
> -#define ACPI_DEVICE_CLASS(_cls, _msk)  .cls = (0), .cls_msk = (0),
>
>  #include <acpi/acpi_numa.h>
>
> diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
> index ccaaeda792c0..486747518aae 100644
> --- a/include/linux/mod_devicetable.h
> +++ b/include/linux/mod_devicetable.h
> @@ -221,6 +221,19 @@ struct acpi_device_id {
>         __u32 cls_msk;
>  };
>
> +/**
> + * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
> + * the PCI-defined class-code information
> + *
> + * @_cls : the class, subclass, prog-if triple for this device
> + * @_msk : the class mask for this device
> + *
> + * This macro is used to create a struct acpi_device_id that matches a
> + * specific PCI class. The .id and .driver_data fields will be left
> + * initialized with the default value.
> + */
> +#define ACPI_DEVICE_CLASS(_cls, _msk)  .cls = (_cls), .cls_msk = (_msk),
> +
>  #define PNP_ID_LEN     8
>  #define PNP_MAX_DEVICES        8
>
> --
> 2.40.0.1.gaa8946217a0b
>