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

From: Jeff Johnson
Date: Tue Jun 04 2024 - 09:35:13 EST


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;
}