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From: David Marchand <david.marchand@redhat.com>
To: dev@dpdk.org
Cc: stable@dpdk.org, Matan Azrad <matan@nvidia.com>,
	Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Subject: [PATCH] net/mlx5: fix build with GCC 12 and ASan
Date: Thu,  9 Mar 2023 10:03:17 +0100	[thread overview]
Message-ID: <20230309090317.847742-1-david.marchand@redhat.com> (raw)

Building with gcc 12 and ASan raises this warning:

../drivers/net/mlx5/mlx5_txpp.c: In function ‘mlx5_txpp_xstats_get_names’:
../drivers/net/mlx5/mlx5_txpp.c:1066:25: error: ‘strncpy’ specified bound
	64 equals destination size [-Werror=stringop-truncation]
 1066 |                         strncpy(xstats_names[i + n_used].name,
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1067 |                                 mlx5_txpp_stat_names[i],
      |                                 ~~~~~~~~~~~~~~~~~~~~~~~~
 1068 |                                 RTE_ETH_XSTATS_NAME_SIZE);
      |                                 ~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Prefer strlcpy.

Fixes: 3b025c0ca425 ("net/mlx5: provide send scheduling error statistics")
Cc: stable@dpdk.org

Signed-off-by: David Marchand <david.marchand@redhat.com>
---
 drivers/net/mlx5/mlx5_txpp.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_txpp.c b/drivers/net/mlx5/mlx5_txpp.c
index 63d98dbde9..0e1da1d5f5 100644
--- a/drivers/net/mlx5/mlx5_txpp.c
+++ b/drivers/net/mlx5/mlx5_txpp.c
@@ -1063,11 +1063,9 @@ int mlx5_txpp_xstats_get_names(struct rte_eth_dev *dev __rte_unused,
 
 	if (n >= n_used + n_txpp && xstats_names) {
 		for (i = 0; i < n_txpp; ++i) {
-			strncpy(xstats_names[i + n_used].name,
+			strlcpy(xstats_names[i + n_used].name,
 				mlx5_txpp_stat_names[i],
 				RTE_ETH_XSTATS_NAME_SIZE);
-			xstats_names[i + n_used].name
-					[RTE_ETH_XSTATS_NAME_SIZE - 1] = 0;
 		}
 	}
 	return n_used + n_txpp;
-- 
2.39.2


             reply	other threads:[~2023-03-09  9:03 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-09  9:03 David Marchand [this message]
2023-03-14  9:02 ` David Marchand
2023-03-14 13:00 ` Slava Ovsiienko
2023-03-15 10:05   ` David Marchand
2023-03-15 12:08     ` Slava Ovsiienko
2023-03-22 17:06 ` [PATCH v2] " David Marchand
2023-03-23 11:01   ` Raslan Darawsheh

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