[PATCH 2/2] iommu/arm-smmu-v3: Use FIELD_MODIFY()

[Hans Zhang <18255117159@163.com>]

Use FIELD_MODIFY() to remove open-coded bit manipulation.
No functional change intended.

Signed-off-by: Hans Zhang <18255117159@163.com>
---
 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c
index ddae0b07c76b..b62e91e4781d 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c
@@ -330,8 +330,7 @@ static int arm_vsmmu_convert_user_cmd(struct arm_vsmmu *vsmmu,
 	case CMDQ_OP_TLBI_NH_VAA:
 	case CMDQ_OP_TLBI_NH_ALL:
 	case CMDQ_OP_TLBI_NH_ASID:
-		cmd->cmd[0] &= ~CMDQ_TLBI_0_VMID;
-		cmd->cmd[0] |= FIELD_PREP(CMDQ_TLBI_0_VMID, vsmmu->vmid);
+		FIELD_MODIFY(CMDQ_TLBI_0_VMID, &cmd->cmd[0], vsmmu->vmid);
 		break;
 	case CMDQ_OP_ATC_INV:
 	case CMDQ_OP_CFGI_CD:
@@ -340,8 +339,7 @@ static int arm_vsmmu_convert_user_cmd(struct arm_vsmmu *vsmmu,
 
 		if (arm_vsmmu_vsid_to_sid(vsmmu, vsid, &sid))
 			return -EIO;
-		cmd->cmd[0] &= ~CMDQ_CFGI_0_SID;
-		cmd->cmd[0] |= FIELD_PREP(CMDQ_CFGI_0_SID, sid);
+		FIELD_MODIFY(CMDQ_CFGI_0_SID, &cmd->cmd[0], sid);
 		break;
 	}
 	default:
-- 
2.34.1