From: Tariq Toukan <tariqt@mellanox.com>
Date: Mon, 3 Jul 2017 11:51:17 +0300
Subject: net/mlx5e: Remove unnecessary wqe_sz field from RQ buffer
Patch-mainline: v4.14-rc1
Git-commit: b681c481f11bd2839d759f493b00008a6c690e61
References: bsc#1046305 FATE#322943

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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/en.h      |    1 -
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c |    8 +++-----
 2 files changed, 3 insertions(+), 6 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/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 */
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -624,8 +624,7 @@ static int mlx5e_alloc_rq(struct mlx5e_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)
@@ -661,15 +660,14 @@ static int mlx5e_alloc_rq(struct mlx5e_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);