[PATCH 6.18 015/122] net/mlx5: Fix return type mismatch in mlx5_esw_vport_vhca_id()

Greg Kroah-Hartman
2026-02-04T15:28:45Z

From: Zeng Chi <zengchi@kylinos.cn>

[ Upstream commit ca12c4a155ebf84e9ef29b05ce979bc89364290f ]

The function mlx5_esw_vport_vhca_id() is declared to return bool,
but returns -EOPNOTSUPP (-45), which is an int error code. This
causes a signedness bug as reported by smatch.

This patch fixes this smatch report:
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h:981 mlx5_esw_vport_vhca_id()
warn: signedness bug returning '(-45)'

Fixes: 1baf30426553 ("net/mlx5: E-Switch, Set/Query hca cap via vhca id")
Reviewed-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260123085749.1401969-1-zeng_chi911@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index 16eb99aba2a7e..2d91f77b01601 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -1002,7 +1002,7 @@ mlx5_esw_host_functions_enabled(const struct mlx5_core_dev *dev)
static inline bool
mlx5_esw_vport_vhca_id(struct mlx5_eswitch *esw, u16 vportn, u16 *vhca_id)
{
- return -EOPNOTSUPP;
+ return false;
}

#endif /* CONFIG_MLX5_ESWITCH */
--
2.51.0