From: Li RongQing <lirongqing@baidu.com>
Date: Thu, 24 Oct 2019 16:23:33 +0800
Subject: net/mlx5: rate limit alloc_ent error messages
Patch-mainline: v5.5-rc1
Git-commit: 5a212e0cac548e5e4fb3f2ba1b5b2f6c8949687d
References: jsc#SLE-8464

when debug a bug, which triggers TX hang, and kernel log is
spammed with the following info message

    [ 1172.044764] mlx5_core 0000:21:00.0: cmd_work_handler:930:(pid 8):
    failed to allocate command entry

Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/cmd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -866,7 +866,7 @@ static void cmd_work_handler(struct work
 	if (!ent->page_queue) {
 		alloc_ret = alloc_ent(cmd);
 		if (alloc_ret < 0) {
-			mlx5_core_err(dev, "failed to allocate command entry\n");
+			mlx5_core_err_rl(dev, "failed to allocate command entry\n");
 			if (ent->callback) {
 				ent->callback(-EAGAIN, ent->context);
 				mlx5_free_cmd_msg(dev, ent->out);