RE: [PATCH 6/8] vfio/mdev: unexport mdev_bus_type

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> From: Christoph Hellwig
> Sent: Friday, June 3, 2022 2:33 PM
> 
> mdev_bus_type is only used in mdev.ko now, so unexport it.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>

> ---
>  drivers/vfio/mdev/mdev_driver.c  | 1 -
>  drivers/vfio/mdev/mdev_private.h | 1 +
>  include/linux/mdev.h             | 2 --
>  3 files changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/vfio/mdev/mdev_driver.c
> b/drivers/vfio/mdev/mdev_driver.c
> index 9c2af59809e2e..dde6adf23b1db 100644
> --- a/drivers/vfio/mdev/mdev_driver.c
> +++ b/drivers/vfio/mdev/mdev_driver.c
> @@ -47,7 +47,6 @@ struct bus_type mdev_bus_type = {
>  	.remove		= mdev_remove,
>  	.match		= mdev_match,
>  };
> -EXPORT_SYMBOL_GPL(mdev_bus_type);
> 
>  /**
>   * mdev_register_driver - register a new MDEV driver
> diff --git a/drivers/vfio/mdev/mdev_private.h
> b/drivers/vfio/mdev/mdev_private.h
> index 277819f1ebed8..3ecd6ae1dfa7c 100644
> --- a/drivers/vfio/mdev/mdev_private.h
> +++ b/drivers/vfio/mdev/mdev_private.h
> @@ -13,6 +13,7 @@
>  int  mdev_bus_register(void);
>  void mdev_bus_unregister(void);
> 
> +extern struct bus_type mdev_bus_type;
>  extern const struct attribute_group *mdev_device_groups[];
> 
>  #define to_mdev_type_attr(_attr)	\
> diff --git a/include/linux/mdev.h b/include/linux/mdev.h
> index 5811b5a52a511..f92b4d8edf0e8 100644
> --- a/include/linux/mdev.h
> +++ b/include/linux/mdev.h
> @@ -88,8 +88,6 @@ static inline const guid_t *mdev_uuid(struct
> mdev_device *mdev)
>  	return &mdev->uuid;
>  }
> 
> -extern struct bus_type mdev_bus_type;
> -
>  int mdev_register_parent(struct mdev_parent *parent, struct device *dev,
>  		struct mdev_driver *mdev_driver);
>  void mdev_unregister_parent(struct mdev_parent *parent);
> --
> 2.30.2





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