diff --git a/drivers/net/ethernet/intel/iavf/iavf_common.c b/drivers/net/ethernet/intel/iavf/iavf_common.c
index af5cc69f26e3..5a25233a89d5 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_common.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_common.c
@@ -331,6 +331,7 @@ static enum iavf_status iavf_aq_get_set_rss_lut(struct iavf_hw *hw,
 	struct iavf_aq_desc desc;
 	struct iavf_aqc_get_set_rss_lut *cmd_resp =
 		   (struct iavf_aqc_get_set_rss_lut *)&desc.params.raw;
+	u16 flags;
 
 	if (set)
 		iavf_fill_default_direct_cmd_desc(&desc,
@@ -343,22 +344,18 @@ static enum iavf_status iavf_aq_get_set_rss_lut(struct iavf_hw *hw,
 	desc.flags |= cpu_to_le16((u16)IAVF_AQ_FLAG_BUF);
 	desc.flags |= cpu_to_le16((u16)IAVF_AQ_FLAG_RD);
 
-	cmd_resp->vsi_id =
-			cpu_to_le16((u16)((vsi_id <<
-					  IAVF_AQC_SET_RSS_LUT_VSI_ID_SHIFT) &
-					  IAVF_AQC_SET_RSS_LUT_VSI_ID_MASK));
-	cmd_resp->vsi_id |= cpu_to_le16((u16)IAVF_AQC_SET_RSS_LUT_VSI_VALID);
+	vsi_id = FIELD_PREP(IAVF_AQC_SET_RSS_LUT_VSI_ID_MASK, vsi_id) |
+		 FIELD_PREP(IAVF_AQC_SET_RSS_LUT_VSI_VALID, 1);
+	cmd_resp->vsi_id = cpu_to_le16(vsi_id);
 
 	if (pf_lut)
-		cmd_resp->flags |= cpu_to_le16((u16)
-					((IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_PF <<
-					IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_SHIFT) &
-					IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_MASK));
+		flags = FIELD_PREP(IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_MASK,
+				   IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_PF);
 	else
-		cmd_resp->flags |= cpu_to_le16((u16)
-					((IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_VSI <<
-					IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_SHIFT) &
-					IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_MASK));
+		flags = FIELD_PREP(IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_MASK,
+				   IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_VSI);
+
+	cmd_resp->flags = cpu_to_le16(flags);
 
 	status = iavf_asq_send_command(hw, &desc, lut, lut_size, NULL);
 
@@ -412,11 +409,9 @@ iavf_status iavf_aq_get_set_rss_key(struct iavf_hw *hw, u16 vsi_id,
 	desc.flags |= cpu_to_le16((u16)IAVF_AQ_FLAG_BUF);
 	desc.flags |= cpu_to_le16((u16)IAVF_AQ_FLAG_RD);
 
-	cmd_resp->vsi_id =
-			cpu_to_le16((u16)((vsi_id <<
-					  IAVF_AQC_SET_RSS_KEY_VSI_ID_SHIFT) &
-					  IAVF_AQC_SET_RSS_KEY_VSI_ID_MASK));
-	cmd_resp->vsi_id |= cpu_to_le16((u16)IAVF_AQC_SET_RSS_KEY_VSI_VALID);
+	vsi_id = FIELD_PREP(IAVF_AQC_SET_RSS_KEY_VSI_ID_MASK, vsi_id) |
+		 FIELD_PREP(IAVF_AQC_SET_RSS_KEY_VSI_VALID, 1);
+	cmd_resp->vsi_id = cpu_to_le16(vsi_id);
 
 	status = iavf_asq_send_command(hw, &desc, key, key_size, NULL);
 
diff --git a/drivers/net/ethernet/intel/iavf/iavf_fdir.c b/drivers/net/ethernet/intel/iavf/iavf_fdir.c
index 65ddcd81c993..2d47b0b4640e 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_fdir.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_fdir.c
@@ -358,7 +358,7 @@ iavf_fill_fdir_ip6_hdr(struct iavf_fdir_fltr *fltr,
 
 	if (fltr->ip_mask.tclass == U8_MAX) {
 		iph->priority = (fltr->ip_data.tclass >> 4) & 0xF;
-		iph->flow_lbl[0] = (fltr->ip_data.tclass << 4) & 0xF0;
+		iph->flow_lbl[0] = FIELD_PREP(0xF0, fltr->ip_data.tclass);
 		VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, IPV6, TC);
 	}