net/mlx5e: Remove unnecessary wqe_sz field from RQ buffer

Field is used only locally within the RQ create function.
The use of a local variable is sufficient.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/en.h

@@ -540,7 +540,6 @@ struct mlx5e_rq {
 		} mpwqe;
 	};
 	struct {
-		u32            wqe_sz;    /* wqe data buffer size */
 		u16            headroom;
 		u8             page_order;
 		u8             map_dir;   /* dma map direction */

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -618,8 +618,7 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c,
 		rq->mpwqe.log_stride_sz = params->mpwqe_log_stride_sz;
 		rq->mpwqe.num_strides = BIT(params->mpwqe_log_num_strides);
 
-		rq->buff.wqe_sz = rq->mpwqe.num_strides << rq->mpwqe.log_stride_sz;
-		byte_count = rq->buff.wqe_sz;
+		byte_count = rq->mpwqe.num_strides << rq->mpwqe.log_stride_sz;
 
 		err = mlx5e_create_rq_umr_mkey(mdev, rq);
 		if (err)
@@ -654,15 +653,14 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c,
 			goto err_rq_wq_destroy;
 		}
 
-		rq->buff.wqe_sz = params->lro_en  ?
+		byte_count = params->lro_en  ?
 				params->lro_wqe_sz :
 				MLX5E_SW2HW_MTU(c->priv, c->netdev->mtu);
 #ifdef CONFIG_MLX5_EN_IPSEC
 		if (MLX5_IPSEC_DEV(mdev))
-			rq->buff.wqe_sz += MLX5E_METADATA_ETHER_LEN;
+			byte_count += MLX5E_METADATA_ETHER_LEN;
 #endif
 		rq->wqe.page_reuse = !params->xdp_prog && !params->lro_en;
-		byte_count = rq->buff.wqe_sz;
 
 		/* calc the required page order */
 		rq->wqe.frag_sz = MLX5_SKB_FRAG_SZ(rq->buff.headroom + byte_count);