Re: [PATCH 3/9] vga_switcheroo: Use enum vga_switcheroo_client_id instead of int

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On Fri, Aug 28, 2015 at 6:54 AM, Lukas Wunner <lukas@xxxxxxxxx> wrote:
> Signed-off-by: Lukas Wunner <lukas@xxxxxxxxx>

Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>

> ---
>  drivers/gpu/vga/vga_switcheroo.c | 17 ++++++++++-------
>  include/linux/vga_switcheroo.h   |  6 +++---
>  2 files changed, 13 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c
> index 9896305..af0d372 100644
> --- a/drivers/gpu/vga/vga_switcheroo.c
> +++ b/drivers/gpu/vga/vga_switcheroo.c
> @@ -102,7 +102,7 @@ struct vga_switcheroo_client {
>         struct fb_info *fb_info;
>         enum vga_switcheroo_state pwr_state;
>         const struct vga_switcheroo_client_ops *ops;
> -       int id;
> +       enum vga_switcheroo_client_id id;
>         bool active;
>         bool driver_power_control;
>         struct list_head list;
> @@ -233,7 +233,8 @@ EXPORT_SYMBOL(vga_switcheroo_unregister_handler);
>
>  static int register_client(struct pci_dev *pdev,
>                            const struct vga_switcheroo_client_ops *ops,
> -                          int id, bool active, bool driver_power_control)
> +                          enum vga_switcheroo_client_id id, bool active,
> +                          bool driver_power_control)
>  {
>         struct vga_switcheroo_client *client;
>
> @@ -288,7 +289,7 @@ EXPORT_SYMBOL(vga_switcheroo_register_client);
>   * vga_switcheroo_register_audio_client - register audio client
>   * @pdev: client pci device
>   * @ops: client callbacks
> - * @id: client identifier, see enum vga_switcheroo_client_id
> + * @id: client identifier
>   *
>   * Register audio client (audio device on a GPU). The power state of the
>   * client is assumed to be ON.
> @@ -297,7 +298,7 @@ EXPORT_SYMBOL(vga_switcheroo_register_client);
>   */
>  int vga_switcheroo_register_audio_client(struct pci_dev *pdev,
>                                          const struct vga_switcheroo_client_ops *ops,
> -                                        int id)
> +                                        enum vga_switcheroo_client_id id)
>  {
>         return register_client(pdev, ops, id | ID_BIT_AUDIO, false, false);
>  }
> @@ -315,7 +316,8 @@ find_client_from_pci(struct list_head *head, struct pci_dev *pdev)
>  }
>
>  static struct vga_switcheroo_client *
> -find_client_from_id(struct list_head *head, int client_id)
> +find_client_from_id(struct list_head *head,
> +                   enum vga_switcheroo_client_id client_id)
>  {
>         struct vga_switcheroo_client *client;
>
> @@ -497,7 +499,8 @@ static int vga_switchoff(struct vga_switcheroo_client *client)
>         return 0;
>  }
>
> -static void set_audio_state(int id, enum vga_switcheroo_state state)
> +static void set_audio_state(enum vga_switcheroo_client_id id,
> +                           enum vga_switcheroo_state state)
>  {
>         struct vga_switcheroo_client *client;
>
> @@ -584,7 +587,7 @@ vga_switcheroo_debugfs_write(struct file *filp, const char __user *ubuf,
>         int ret;
>         bool delay = false, can_switch;
>         bool just_mux = false;
> -       int client_id = VGA_SWITCHEROO_UNKNOWN_ID;
> +       enum vga_switcheroo_client_id client_id = VGA_SWITCHEROO_UNKNOWN_ID;
>         struct vga_switcheroo_client *client = NULL;
>
>         if (cnt > 63)
> diff --git a/include/linux/vga_switcheroo.h b/include/linux/vga_switcheroo.h
> index 88909a8..c557511 100644
> --- a/include/linux/vga_switcheroo.h
> +++ b/include/linux/vga_switcheroo.h
> @@ -100,7 +100,7 @@ struct vga_switcheroo_handler {
>         int (*switchto)(enum vga_switcheroo_client_id id);
>         int (*power_state)(enum vga_switcheroo_client_id id,
>                            enum vga_switcheroo_state state);
> -       int (*get_client_id)(struct pci_dev *pdev);
> +       enum vga_switcheroo_client_id (*get_client_id)(struct pci_dev *pdev);
>  };
>
>  /**
> @@ -132,7 +132,7 @@ int vga_switcheroo_register_client(struct pci_dev *dev,
>                                    bool driver_power_control);
>  int vga_switcheroo_register_audio_client(struct pci_dev *pdev,
>                                          const struct vga_switcheroo_client_ops *ops,
> -                                        int id);
> +                                        enum vga_switcheroo_client_id id);
>
>  void vga_switcheroo_client_fb_set(struct pci_dev *dev,
>                                   struct fb_info *info);
> @@ -158,7 +158,7 @@ static inline void vga_switcheroo_client_fb_set(struct pci_dev *dev, struct fb_i
>  static inline int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler) { return 0; }
>  static inline int vga_switcheroo_register_audio_client(struct pci_dev *pdev,
>         const struct vga_switcheroo_client_ops *ops,
> -       int id) { return 0; }
> +       enum vga_switcheroo_client_id id) { return 0; }
>  static inline void vga_switcheroo_unregister_handler(void) {}
>  static inline int vga_switcheroo_process_delayed_switch(void) { return 0; }
>  static inline enum vga_switcheroo_state vga_switcheroo_get_client_state(struct pci_dev *dev) { return VGA_SWITCHEROO_ON; }
> --
> 1.8.5.2 (Apple Git-48)
>
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