[PATCH net-next v3 1/5] mlxsw: minimal: fix mlxsw_m_module_get_drvinfo() to correctly report driver name

From: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
To: Jiri Pirko <jiri@nvidia.com>,
	netdev@vger.kernel.org, Jakub Kicinski <kuba@kernel.org>
Cc: "David S . Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>,
	linux-kernel@vger.kernel.org,
	Boris Brezillon <bbrezillon@kernel.org>,
	Arnaud Ebalard <arno@natisbad.org>,
	Srujana Challa <schalla@marvell.com>,
	Kurt Kanzenbach <kurt@linutronix.de>,
	Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Vladimir Oltean <olteanv@gmail.com>,
	Michael Chan <michael.chan@broadcom.com>,
	Ioana Ciornei <ioana.ciornei@nxp.com>,
	Dimitris Michailidis <dmichail@fungible.com>,
	Yisen Zhuang <yisen.zhuang@huawei.com>,
	Salil Mehta <salil.mehta@huawei.com>,
	Jesse Brandeburg <jesse.brandeburg@intel.com>,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	Sunil Goutham <sgoutham@marvell.com>,
	Linu Cherian <lcherian@marvell.com>,
	Geetha sowjanya <gakula@marvell.com>,
	Jerin Jacob <jerinj@marvell.com>, hariprasad <hkelam@marvell.com>,
	Subbaraya Sundeep <sbhatta@marvell.com>,
	Taras Chornyi <tchornyi@marvell.com>,
	Saeed Mahameed <saeedm@nvidia.com>,
	Leon Romanovsky <leon@kernel.org>,
	Ido Schimmel <idosch@nvidia.com>, Petr Machata <petrm@nvidia.com>,
	Simon Horman <simon.horman@corigine.com>,
	Shannon Nelson <snelson@pensando.io>,
	drivers@pensando.io, Ariel Elior <aelior@marvell.com>,
	Manish Chopra <manishc@marvell.com>,
	Jonathan Lemon <jonathan.lemon@gmail.com>,
	Vadim Fedorenko <vadfed@fb.com>,
	Richard Cochran <richardcochran@gmail.com>,
	Vadim Pasternak <vadimp@mellanox.com>,
	Shalom Toledo <shalomt@mellanox.com>,
	linux-crypto@vger.kernel.org, intel-wired-lan@lists.osuosl.org,
	linux-rdma@vger.kernel.org, oss-drivers@corigine.com,
	Jiri Pirko <jiri@mellanox.com>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Hao Chen <chenhao288@hisilicon.com>,
	Guangbin Huang <huangguangbin2@huawei.com>,
	Minghao Chi <chi.minghao@zte.com.cn>,
	Shijith Thotton <sthotton@marvell.com>,
	Vincent Mailhol <mailhol.vincent@wanadoo.fr>,
	Ido Schimmel <idosch@mellanox.com>
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	[thread overview]
Message-ID: <20221127130919.638324-2-mailhol.vincent@wanadoo.fr> (raw)
In-Reply-To: <20221127130919.638324-1-mailhol.vincent@wanadoo.fr>

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

