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Subject: [PATCH net-next v3 1/5] mlxsw: minimal: fix mlxsw_m_module_get_drvinfo() to correctly report driver name
Date:   Sun, 27 Nov 2022 22:09:15 +0900
Message-Id: <20221127130919.638324-2-mailhol.vincent@wanadoo.fr>
In-Reply-To: <20221127130919.638324-1-mailhol.vincent@wanadoo.fr>
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 <20221127130919.638324-1-mailhol.vincent@wanadoo.fr>
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Currently, mlxsw_m_module_get_drvinfo() reports the device_kind. The
device_kind is not necessarily the same as the device_name. For
example, the mlxsw_i2c implementation sets up the device_kind as
ic2_client::name in [1] which indicates the type of the device
(e.g. chip name), not the actual driver name.

Fix it so that it correctly reports the driver name.

[1] mlxsw_i2c_probe() from drivers/net/ethernet/mellanox/mlxsw/i2c.c
Link: https://elixir.bootlin.com/linux/v6.1-rc1/source/drivers/net/ethernet/mellanox/mlxsw/i2c.c#L714

Fixes: 9bbd7efbc055 ("mlxsw: i2c: Extend initialization with querying firmware info")
CC: Shalom Toledo <shalomt@mellanox.com>
CC: Ido Schimmel <idosch@mellanox.com>
CC: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
---
 drivers/net/ethernet/mellanox/mlxsw/minimal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/minimal.c b/drivers/net/ethernet/mellanox/mlxsw/minimal.c
index 6b56eadd736e..9b37ddbe0cba 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/minimal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/minimal.c
@@ -92,7 +92,7 @@ static void mlxsw_m_module_get_drvinfo(struct net_device *dev,
 	struct mlxsw_m_port *mlxsw_m_port = netdev_priv(dev);
 	struct mlxsw_m *mlxsw_m = mlxsw_m_port->mlxsw_m;
 
-	strscpy(drvinfo->driver, mlxsw_m->bus_info->device_kind,
+	strscpy(drvinfo->driver, dev_driver_string(dev->dev.parent),
 		sizeof(drvinfo->driver));
 	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
 		 "%d.%d.%d",
-- 
2.37.4