netdev - [net-next V4 06/13] mlx5: Use proper logging and tracing line terminations

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Date:   Wed, 19 Feb 2020 03:23:12 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>,
        "kuba@...nel.org" <kuba@...nel.org>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Joe Perches <joe@...ches.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next V4 06/13] mlx5: Use proper logging and tracing line
 terminations

From: Joe Perches <joe@...ches.com>

netdev_err should use newline termination but mlx5_health_report
is used in a trace output function devlink_health_report where
no newline should be used.

Remove the newlines from a couple formats and add a format string
of "%s\n" to the netdev_err call to not directly output the
logging string.

Also use snprintf to avoid any possible output string overrun.

Signed-off-by: Joe Perches <joe@...ches.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/health.c    |  2 +-
 .../net/ethernet/mellanox/mlx5/core/en/reporter_rx.c   |  9 +++++----
 .../net/ethernet/mellanox/mlx5/core/en/reporter_tx.c   | 10 +++++-----
 3 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.c b/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
index 7178f421d2cb..68d019b27642 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
@@ -198,7 +198,7 @@ int mlx5e_health_report(struct mlx5e_priv *priv,
 			struct devlink_health_reporter *reporter, char *err_str,
 			struct mlx5e_err_ctx *err_ctx)
 {
-	netdev_err(priv->netdev, err_str);
+	netdev_err(priv->netdev, "%s\n", err_str);
 
 	if (!reporter)
 		return err_ctx->recover(&err_ctx->ctx);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
index 9599fdd620a8..ce2b41c61090 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
@@ -519,8 +519,9 @@ void mlx5e_reporter_rx_timeout(struct mlx5e_rq *rq)
 	err_ctx.ctx = rq;
 	err_ctx.recover = mlx5e_rx_reporter_timeout_recover;
 	err_ctx.dump = mlx5e_rx_reporter_dump_rq;
-	sprintf(err_str, "RX timeout on channel: %d, ICOSQ: 0x%x RQ: 0x%x, CQ: 0x%x\n",
-		icosq->channel->ix, icosq->sqn, rq->rqn, rq->cq.mcq.cqn);
+	snprintf(err_str, sizeof(err_str),
+		 "RX timeout on channel: %d, ICOSQ: 0x%x RQ: 0x%x, CQ: 0x%x",
+		 icosq->channel->ix, icosq->sqn, rq->rqn, rq->cq.mcq.cqn);
 
 	mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
 }
@@ -534,7 +535,7 @@ void mlx5e_reporter_rq_cqe_err(struct mlx5e_rq *rq)
 	err_ctx.ctx = rq;
 	err_ctx.recover = mlx5e_rx_reporter_err_rq_cqe_recover;
 	err_ctx.dump = mlx5e_rx_reporter_dump_rq;
-	sprintf(err_str, "ERR CQE on RQ: 0x%x", rq->rqn);
+	snprintf(err_str, sizeof(err_str), "ERR CQE on RQ: 0x%x", rq->rqn);
 
 	mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
 }
@@ -548,7 +549,7 @@ void mlx5e_reporter_icosq_cqe_err(struct mlx5e_icosq *icosq)
 	err_ctx.ctx = icosq;
 	err_ctx.recover = mlx5e_rx_reporter_err_icosq_cqe_recover;
 	err_ctx.dump = mlx5e_rx_reporter_dump_icosq;
-	sprintf(err_str, "ERR CQE on ICOSQ: 0x%x", icosq->sqn);
+	snprintf(err_str, sizeof(err_str), "ERR CQE on ICOSQ: 0x%x", icosq->sqn);
 
 	mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
index 1772c9ce3938..2028ce9b151f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -375,7 +375,7 @@ void mlx5e_reporter_tx_err_cqe(struct mlx5e_txqsq *sq)
 	err_ctx.ctx = sq;
 	err_ctx.recover = mlx5e_tx_reporter_err_cqe_recover;
 	err_ctx.dump = mlx5e_tx_reporter_dump_sq;
-	sprintf(err_str, "ERR CQE on SQ: 0x%x", sq->sqn);
+	snprintf(err_str, sizeof(err_str), "ERR CQE on SQ: 0x%x", sq->sqn);
 
 	mlx5e_health_report(priv, priv->tx_reporter, err_str, &err_ctx);
 }
@@ -389,10 +389,10 @@ int mlx5e_reporter_tx_timeout(struct mlx5e_txqsq *sq)
 	err_ctx.ctx = sq;
 	err_ctx.recover = mlx5e_tx_reporter_timeout_recover;
 	err_ctx.dump = mlx5e_tx_reporter_dump_sq;
-	sprintf(err_str,
-		"TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x, usecs since last trans: %u\n",
-		sq->channel->ix, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc,
-		jiffies_to_usecs(jiffies - sq->txq->trans_start));
+	snprintf(err_str, sizeof(err_str),
+		 "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x, usecs since last trans: %u",
+		 sq->channel->ix, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc,
+		 jiffies_to_usecs(jiffies - sq->txq->trans_start));
 
 	return mlx5e_health_report(priv, priv->tx_reporter, err_str, &err_ctx);
 }
-- 
2.24.1