netdev - [PATCH] net/mlx4: make the array states static const, makes object smaller

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Date:   Sun,  1 Aug 2021 16:37:42 +0100
From:   Colin King <colin.king@...onical.com>
To:     Tariq Toukan <tariqt@...dia.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] net/mlx4: make the array states static const, makes object smaller

From: Colin Ian King <colin.king@...onical.com>

Don't populate the array states on the stack but instead it
static const. Makes the object code smaller by 79 bytes.

Before:
   text   data   bss    dec    hex filename
  21309   8304   192  29805   746d drivers/net/ethernet/mellanox/mlx4/qp.o

After:
   text   data   bss    dec    hex filename
  21166   8368   192  29726   741e drivers/net/ethernet/mellanox/mlx4/qp.o

(gcc version 10.2.0)

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/net/ethernet/mellanox/mlx4/qp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/qp.c b/drivers/net/ethernet/mellanox/mlx4/qp.c
index 427e7a31862c..2584bc038f94 100644
--- a/drivers/net/ethernet/mellanox/mlx4/qp.c
+++ b/drivers/net/ethernet/mellanox/mlx4/qp.c
@@ -917,7 +917,7 @@ int mlx4_qp_to_ready(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 {
 	int err;
 	int i;
-	enum mlx4_qp_state states[] = {
+	static const enum mlx4_qp_state states[] = {
 		MLX4_QP_STATE_RST,
 		MLX4_QP_STATE_INIT,
 		MLX4_QP_STATE_RTR,
-- 
2.31.1