linux-kernel - Re: [PATCH RFCv1 01/14] iommufd: Move iommufd

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Message-ID: <ZkDCbWv1DFH25mnh@nvidia.com>
Date: Sun, 12 May 2024 10:21:49 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: Nicolin Chen <nicolinc@...dia.com>
Cc: will@...nel.org, robin.murphy@....com, kevin.tian@...el.com,
	suravee.suthikulpanit@....com, joro@...tes.org,
	linux-kernel@...r.kernel.org, iommu@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
	yi.l.liu@...el.com, eric.auger@...hat.com, vasant.hegde@....com,
	jon.grimm@....com, santosh.shukla@....com, Dhaval.Giani@....com,
	shameerali.kolothum.thodi@...wei.com
Subject: Re: [PATCH RFCv1 01/14] iommufd: Move iommufd_object to public
 iommufd header

On Fri, Apr 12, 2024 at 08:46:58PM -0700, Nicolin Chen wrote:
> diff --git a/include/linux/iommufd.h b/include/linux/iommufd.h
> index ffc3a949f837..a0cb08a4b653 100644
> --- a/include/linux/iommufd.h
> +++ b/include/linux/iommufd.h
> @@ -9,6 +9,7 @@
>  #include <linux/types.h>
>  #include <linux/errno.h>
>  #include <linux/err.h>
> +#include <linux/refcount.h>
>  
>  struct device;
>  struct iommufd_device;
> @@ -18,6 +19,28 @@ struct iommufd_access;
>  struct file;
>  struct iommu_group;
>  
> +enum iommufd_object_type {
> +	IOMMUFD_OBJ_NONE,
> +	IOMMUFD_OBJ_ANY = IOMMUFD_OBJ_NONE,
> +	IOMMUFD_OBJ_DEVICE,
> +	IOMMUFD_OBJ_HWPT_PAGING,
> +	IOMMUFD_OBJ_HWPT_NESTED,
> +	IOMMUFD_OBJ_IOAS,
> +	IOMMUFD_OBJ_ACCESS,
> +#ifdef CONFIG_IOMMUFD_TEST
> +	IOMMUFD_OBJ_SELFTEST,
> +#endif
> +	IOMMUFD_OBJ_MAX,
> +};

Can we just forward declare the enum? It would be nice to keep it in
the private header

Otherwise makes sense

Reviewed-by: Jason Gunthorpe <jgg@...dia.com>

Jason