Re: [PATCH v2 12/22] wifi: ath11k: Use iommu_paging_domain_alloc()

[Jeff Johnson]

On 6/3/24 18:51, Lu Baolu wrote:
> An iommu domain is allocated in ath11k_ahb_fw_resources_init() and is
> attached to ab_ahb->fw.dev in the same function.
>
> Use iommu_paging_domain_alloc() to make it explicit.
>
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>

Acked-by: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx>

> ---
>   drivers/net/wireless/ath/ath11k/ahb.c | 6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath11k/ahb.c b/drivers/net/wireless/ath/ath11k/ahb.c
> index ca0f17ddebba..a469647719f9 100644
> --- a/drivers/net/wireless/ath/ath11k/ahb.c
> +++ b/drivers/net/wireless/ath/ath11k/ahb.c
> @@ -1001,10 +1001,10 @@ static int ath11k_ahb_fw_resources_init(struct ath11k_base *ab)
>   
>   	ab_ahb->fw.dev = &pdev->dev;
>   
> -	iommu_dom = iommu_domain_alloc(&platform_bus_type);
> -	if (!iommu_dom) {
> +	iommu_dom = iommu_paging_domain_alloc(ab_ahb->fw.dev);
> +	if (IS_ERR(iommu_dom)) {
>   		ath11k_err(ab, "failed to allocate iommu domain\n");
> -		ret = -ENOMEM;
> +		ret = PTR_ERR(iommu_dom);
>   		goto err_unregister;
>   	}
>