diff mbox series

[4/9] mlx5: avoid truncating error message

Message ID 20240326223825.4084412-5-arnd@kernel.org (mailing list archive)
State Not Applicable
Headers show
Series enabled -Wformat-truncation for clang | expand

Commit Message

Arnd Bergmann March 26, 2024, 10:38 p.m. UTC 
From: Arnd Bergmann <arnd@arndb.de>

clang warns that one error message is too long for its destination buffer:

drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c:1876:4: error: 'snprintf' will always be truncated; specified size is 80, but format string expands to at least 94 [-Werror,-Wformat-truncation-non-kprintf]

Reword it to be a bit shorter so it always fits.

Fixes: 70f0302b3f20 ("net/mlx5: Bridge, implement mdb offload")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Subbaraya Sundeep Bhatta March 27, 2024, 2:08 p.m. UTC | #1 
Hi,

>-----Original Message-----
>From: Arnd Bergmann <arnd@kernel.org>
>Sent: Wednesday, March 27, 2024 4:08 AM
>To: llvm@lists.linux.dev; Saeed Mahameed <saeedm@nvidia.com>; Leon
>Romanovsky <leon@kernel.org>
>Cc: Arnd Bergmann <arnd@arndb.de>; David S. Miller <davem@davemloft.net>;
>Eric Dumazet <edumazet@google.com>; Jakub Kicinski <kuba@kernel.org>; Paolo
>Abeni <pabeni@redhat.com>; Nathan Chancellor <nathan@kernel.org>; Nick
>Desaulniers <ndesaulniers@google.com>; Bill Wendling <morbo@google.com>;
>Justin Stitt <justinstitt@google.com>; Vlad Buslov <vladbu@nvidia.com>; Roi
>Dayan <roid@nvidia.com>; Maor Dickman <maord@nvidia.com>; Gal Pressman
><gal@nvidia.com>; netdev@vger.kernel.org; linux-rdma@vger.kernel.org; linux-
>kernel@vger.kernel.org
>Subject: [PATCH 4/9] mlx5: avoid truncating error message
>
>From: Arnd Bergmann <arnd@arndb.de>
>
>clang warns that one error message is too long for its destination buffer:
>
>drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c:1876:4: error: 'snprintf'
>will always be truncated; specified size is 80, but format string expands to at least
>94 [-Werror,-Wformat-truncation-non-kprintf]
>
>Reword it to be a bit shorter so it always fits.
>
>Fixes: 70f0302b3f20 ("net/mlx5: Bridge, implement mdb offload")
>Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Reviewed-by: Subbaraya Sundeep <sbhatta@marvell.com>

Thanks,
Sundeep


>---
> drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c
>b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c
>index 1b9bc32efd6f..c5ea1d1d2b03 100644
>--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c
>+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c
>@@ -1874,7 +1874,7 @@ int mlx5_esw_bridge_port_mdb_add(struct net_device
>*dev, u16 vport_num, u16 esw_
> 				 "Failed to lookup bridge port vlan metadata to
>create MDB (MAC=%pM,vid=%u,vport=%u)\n",
> 				 addr, vid, vport_num);
> 			NL_SET_ERR_MSG_FMT_MOD(extack,
>-					       "Failed to lookup bridge port vlan
>metadata to create MDB (MAC=%pM,vid=%u,vport=%u)\n",
>+					       "Failed to lookup vlan metadata for
>MDB (MAC=%pM,vid=%u,vport=%u)\n",
> 					       addr, vid, vport_num);
> 			return -EINVAL;
> 		}
>--
>2.39.2
>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c
index 1b9bc32efd6f..c5ea1d1d2b03 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c
@@ -1874,7 +1874,7 @@  int mlx5_esw_bridge_port_mdb_add(struct net_device *dev, u16 vport_num, u16 esw_
 				 "Failed to lookup bridge port vlan metadata to create MDB (MAC=%pM,vid=%u,vport=%u)\n",
 				 addr, vid, vport_num);
 			NL_SET_ERR_MSG_FMT_MOD(extack,
-					       "Failed to lookup bridge port vlan metadata to create MDB (MAC=%pM,vid=%u,vport=%u)\n",
+					       "Failed to lookup vlan metadata for MDB (MAC=%pM,vid=%u,vport=%u)\n",
 					       addr, vid, vport_num);
 			return -EINVAL;
 		}