linux-kernel - Re: [PATCH v2 2/9] iommu/ioasid: Rename ioasid_set

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Date:   Mon, 24 Aug 2020 20:29:31 +0200
From:   Jean-Philippe Brucker <jean-philippe@...aro.org>
To:     Jacob Pan <jacob.pan.linux@...il.com>
Cc:     iommu@...ts.linux-foundation.org,
        LKML <linux-kernel@...r.kernel.org>,
        Jean-Philippe Brucker <jean-philippe@...aro.com>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Yi Liu <yi.l.liu@...el.com>,
        "Tian, Kevin" <kevin.tian@...el.com>,
        Raj Ashok <ashok.raj@...el.com>,
        Eric Auger <eric.auger@...hat.com>, Wu Hao <hao.wu@...el.com>
Subject: Re: [PATCH v2 2/9] iommu/ioasid: Rename ioasid_set_data()

On Fri, Aug 21, 2020 at 09:35:11PM -0700, Jacob Pan wrote:
> Rename ioasid_set_data() to ioasid_attach_data() to avoid confusion with
> struct ioasid_set. ioasid_set is a group of IOASIDs that share a common
> token.
> 
> Signed-off-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>

Reviewed-by: Jean-Philippe Brucker <jean-philippe@...aro.org>

> ---
>  drivers/iommu/intel/svm.c | 6 +++---
>  drivers/iommu/ioasid.c    | 6 +++---
>  include/linux/ioasid.h    | 4 ++--
>  3 files changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
> index b6972dca2ae0..37a9beabc0ca 100644
> --- a/drivers/iommu/intel/svm.c
> +++ b/drivers/iommu/intel/svm.c
> @@ -342,7 +342,7 @@ int intel_svm_bind_gpasid(struct iommu_domain *domain, struct device *dev,
>  			svm->gpasid = data->gpasid;
>  			svm->flags |= SVM_FLAG_GUEST_PASID;
>  		}
> -		ioasid_set_data(data->hpasid, svm);
> +		ioasid_attach_data(data->hpasid, svm);
>  		INIT_LIST_HEAD_RCU(&svm->devs);
>  		mmput(svm->mm);
>  	}
> @@ -394,7 +394,7 @@ int intel_svm_bind_gpasid(struct iommu_domain *domain, struct device *dev,
>  	list_add_rcu(&sdev->list, &svm->devs);
>   out:
>  	if (!IS_ERR_OR_NULL(svm) && list_empty(&svm->devs)) {
> -		ioasid_set_data(data->hpasid, NULL);
> +		ioasid_attach_data(data->hpasid, NULL);
>  		kfree(svm);
>  	}
>  
> @@ -437,7 +437,7 @@ int intel_svm_unbind_gpasid(struct device *dev, int pasid)
>  				 * the unbind, IOMMU driver will get notified
>  				 * and perform cleanup.
>  				 */
> -				ioasid_set_data(pasid, NULL);
> +				ioasid_attach_data(pasid, NULL);
>  				kfree(svm);
>  			}
>  		}
> diff --git a/drivers/iommu/ioasid.c b/drivers/iommu/ioasid.c
> index 0f8dd377aada..5f63af07acd5 100644
> --- a/drivers/iommu/ioasid.c
> +++ b/drivers/iommu/ioasid.c
> @@ -258,14 +258,14 @@ void ioasid_unregister_allocator(struct ioasid_allocator_ops *ops)
>  EXPORT_SYMBOL_GPL(ioasid_unregister_allocator);
>  
>  /**
> - * ioasid_set_data - Set private data for an allocated ioasid
> + * ioasid_attach_data - Set private data for an allocated ioasid
>   * @ioasid: the ID to set data
>   * @data:   the private data
>   *
>   * For IOASID that is already allocated, private data can be set
>   * via this API. Future lookup can be done via ioasid_find.
>   */
> -int ioasid_set_data(ioasid_t ioasid, void *data)
> +int ioasid_attach_data(ioasid_t ioasid, void *data)
>  {
>  	struct ioasid_data *ioasid_data;
>  	int ret = 0;
> @@ -287,7 +287,7 @@ int ioasid_set_data(ioasid_t ioasid, void *data)
>  
>  	return ret;
>  }
> -EXPORT_SYMBOL_GPL(ioasid_set_data);
> +EXPORT_SYMBOL_GPL(ioasid_attach_data);
>  
>  /**
>   * ioasid_alloc - Allocate an IOASID
> diff --git a/include/linux/ioasid.h b/include/linux/ioasid.h
> index 6f000d7a0ddc..9c44947a68c8 100644
> --- a/include/linux/ioasid.h
> +++ b/include/linux/ioasid.h
> @@ -39,7 +39,7 @@ void *ioasid_find(struct ioasid_set *set, ioasid_t ioasid,
>  		  bool (*getter)(void *));
>  int ioasid_register_allocator(struct ioasid_allocator_ops *allocator);
>  void ioasid_unregister_allocator(struct ioasid_allocator_ops *allocator);
> -int ioasid_set_data(ioasid_t ioasid, void *data);
> +int ioasid_attach_data(ioasid_t ioasid, void *data);
>  
>  #else /* !CONFIG_IOASID */
>  static inline ioasid_t ioasid_alloc(struct ioasid_set *set, ioasid_t min,
> @@ -67,7 +67,7 @@ static inline void ioasid_unregister_allocator(struct ioasid_allocator_ops *allo
>  {
>  }
>  
> -static inline int ioasid_set_data(ioasid_t ioasid, void *data)
> +static inline int ioasid_attach_data(ioasid_t ioasid, void *data)
>  {
>  	return -ENOTSUPP;
>  }
> -- 
> 2.7.4
>