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Message-ID: <e840dde5-0d43-6045-4d3a-9b1146d2a6b7@novek.ru>
Date: Wed, 30 Nov 2022 00:29:26 +0000
From: Vadim Fedorenko <vfedorenko@...ek.ru>
To: Vincent Mailhol <mailhol.vincent@...adoo.fr>,
Jiri Pirko <jiri@...dia.com>, netdev@...r.kernel.org,
Jakub Kicinski <kuba@...nel.org>
Cc: "David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Paolo Abeni <pabeni@...hat.com>, linux-kernel@...r.kernel.org,
Boris Brezillon <bbrezillon@...nel.org>,
Arnaud Ebalard <arno@...isbad.org>,
Srujana Challa <schalla@...vell.com>,
Kurt Kanzenbach <kurt@...utronix.de>,
Andrew Lunn <andrew@...n.ch>,
Florian Fainelli <f.fainelli@...il.com>,
Vladimir Oltean <olteanv@...il.com>,
Michael Chan <michael.chan@...adcom.com>,
Ioana Ciornei <ioana.ciornei@....com>,
Dimitris Michailidis <dmichail@...gible.com>,
Yisen Zhuang <yisen.zhuang@...wei.com>,
Salil Mehta <salil.mehta@...wei.com>,
Jesse Brandeburg <jesse.brandeburg@...el.com>,
Tony Nguyen <anthony.l.nguyen@...el.com>,
Sunil Goutham <sgoutham@...vell.com>,
Linu Cherian <lcherian@...vell.com>,
Geetha sowjanya <gakula@...vell.com>,
Jerin Jacob <jerinj@...vell.com>,
hariprasad <hkelam@...vell.com>,
Subbaraya Sundeep <sbhatta@...vell.com>,
Taras Chornyi <tchornyi@...vell.com>,
Saeed Mahameed <saeedm@...dia.com>,
Leon Romanovsky <leon@...nel.org>,
Ido Schimmel <idosch@...dia.com>,
Petr Machata <petrm@...dia.com>,
Simon Horman <simon.horman@...igine.com>,
Shannon Nelson <snelson@...sando.io>, drivers@...sando.io,
Ariel Elior <aelior@...vell.com>,
Manish Chopra <manishc@...vell.com>,
Jonathan Lemon <jonathan.lemon@...il.com>,
Vadim Fedorenko <vadfed@...com>,
Richard Cochran <richardcochran@...il.com>,
Vadim Pasternak <vadimp@...lanox.com>,
Shalom Toledo <shalomt@...lanox.com>,
linux-crypto@...r.kernel.org, intel-wired-lan@...ts.osuosl.org,
linux-rdma@...r.kernel.org, oss-drivers@...igine.com,
Jiri Pirko <jiri@...lanox.com>,
Herbert Xu <herbert@...dor.apana.org.au>,
Hao Chen <chenhao288@...ilicon.com>,
Guangbin Huang <huangguangbin2@...wei.com>,
Minghao Chi <chi.minghao@....com.cn>,
Shijith Thotton <sthotton@...vell.com>
Subject: Re: [PATCH net-next v5 1/4] net: devlink: let the core report the
driver name instead of the drivers
On 29.11.2022 00:05, Vincent Mailhol wrote:
> The driver name is available in device_driver::name. Right now,
> drivers still have to report this piece of information themselves in
> their devlink_ops::info_get callback function.
>
> In order to factorize code, make devlink_nl_info_fill() add the driver
> name attribute.
>
> nla_put() does not check if an attribute already exists and
> unconditionally reserves new space [1]. To avoid attribute
> duplication, clean-up all the drivers which are currently reporting
> the driver name in their callback.
>
> [1] __nla_put from lib/nlattr.c
> Link: https://elixir.bootlin.com/linux/v6.0/source/lib/nlattr.c#L993
>
> Signed-off-by: Vincent Mailhol <mailhol.vincent@...adoo.fr>
> Tested-by: Ido Schimmel <idosch@...dia.com> # mlxsw
For ptp_ocp driver:
Acked-by: Vadim Fedorenko <vadfed@...com>
> ---
> .../crypto/marvell/octeontx2/otx2_cpt_devlink.c | 4 ----
> drivers/net/dsa/hirschmann/hellcreek.c | 5 -----
> drivers/net/dsa/mv88e6xxx/devlink.c | 5 -----
> drivers/net/dsa/sja1105/sja1105_devlink.c | 12 +++---------
> .../net/ethernet/broadcom/bnxt/bnxt_devlink.c | 4 ----
> .../freescale/dpaa2/dpaa2-eth-devlink.c | 11 +----------
> .../ethernet/fungible/funeth/funeth_devlink.c | 2 +-
> .../hisilicon/hns3/hns3pf/hclge_devlink.c | 5 -----
> .../hisilicon/hns3/hns3vf/hclgevf_devlink.c | 5 -----
> drivers/net/ethernet/intel/ice/ice_devlink.c | 6 ------
> .../ethernet/marvell/octeontx2/af/rvu_devlink.c | 2 +-
> .../marvell/octeontx2/nic/otx2_devlink.c | 9 +--------
> .../marvell/prestera/prestera_devlink.c | 5 -----
> .../net/ethernet/mellanox/mlx5/core/devlink.c | 4 ----
> drivers/net/ethernet/mellanox/mlxsw/core.c | 5 -----
> .../net/ethernet/netronome/nfp/nfp_devlink.c | 4 ----
> .../net/ethernet/pensando/ionic/ionic_devlink.c | 4 ----
> drivers/net/ethernet/qlogic/qed/qed_devlink.c | 4 ----
> drivers/net/netdevsim/dev.c | 3 ---
> drivers/ptp/ptp_ocp.c | 4 ----
> net/core/devlink.c | 17 +++++++++++++++++
> 21 files changed, 24 insertions(+), 96 deletions(-)
>
> diff --git a/drivers/crypto/marvell/octeontx2/otx2_cpt_devlink.c b/drivers/crypto/marvell/octeontx2/otx2_cpt_devlink.c
> index 7503f6b18ac5..a2aba0b0d68a 100644
> --- a/drivers/crypto/marvell/octeontx2/otx2_cpt_devlink.c
> +++ b/drivers/crypto/marvell/octeontx2/otx2_cpt_devlink.c
> @@ -76,10 +76,6 @@ static int otx2_cpt_devlink_info_get(struct devlink *dl,
> struct otx2_cptpf_dev *cptpf = cpt_dl->cptpf;
> int err;
>
> - err = devlink_info_driver_name_put(req, "rvu_cptpf");
> - if (err)
> - return err;
> -
> err = otx2_cpt_dl_info_firmware_version_put(req, cptpf->eng_grps.grp,
> "fw.ae", OTX2_CPT_AE_TYPES);
> if (err)
> diff --git a/drivers/net/dsa/hirschmann/hellcreek.c b/drivers/net/dsa/hirschmann/hellcreek.c
> index 951f7935c872..595a548bb0a8 100644
> --- a/drivers/net/dsa/hirschmann/hellcreek.c
> +++ b/drivers/net/dsa/hirschmann/hellcreek.c
> @@ -1176,11 +1176,6 @@ static int hellcreek_devlink_info_get(struct dsa_switch *ds,
> struct netlink_ext_ack *extack)
> {
> struct hellcreek *hellcreek = ds->priv;
> - int ret;
> -
> - ret = devlink_info_driver_name_put(req, "hellcreek");
> - if (ret)
> - return ret;
>
> return devlink_info_version_fixed_put(req,
> DEVLINK_INFO_VERSION_GENERIC_ASIC_ID,
> diff --git a/drivers/net/dsa/mv88e6xxx/devlink.c b/drivers/net/dsa/mv88e6xxx/devlink.c
> index 1266eabee086..a08dab75e0c0 100644
> --- a/drivers/net/dsa/mv88e6xxx/devlink.c
> +++ b/drivers/net/dsa/mv88e6xxx/devlink.c
> @@ -821,11 +821,6 @@ int mv88e6xxx_devlink_info_get(struct dsa_switch *ds,
> struct netlink_ext_ack *extack)
> {
> struct mv88e6xxx_chip *chip = ds->priv;
> - int err;
> -
> - err = devlink_info_driver_name_put(req, "mv88e6xxx");
> - if (err)
> - return err;
>
> return devlink_info_version_fixed_put(req,
> DEVLINK_INFO_VERSION_GENERIC_ASIC_ID,
> diff --git a/drivers/net/dsa/sja1105/sja1105_devlink.c b/drivers/net/dsa/sja1105/sja1105_devlink.c
> index 10c6fea1227f..da532614f34a 100644
> --- a/drivers/net/dsa/sja1105/sja1105_devlink.c
> +++ b/drivers/net/dsa/sja1105/sja1105_devlink.c
> @@ -120,16 +120,10 @@ int sja1105_devlink_info_get(struct dsa_switch *ds,
> struct netlink_ext_ack *extack)
> {
> struct sja1105_private *priv = ds->priv;
> - int rc;
> -
> - rc = devlink_info_driver_name_put(req, "sja1105");
> - if (rc)
> - return rc;
>
> - rc = devlink_info_version_fixed_put(req,
> - DEVLINK_INFO_VERSION_GENERIC_ASIC_ID,
> - priv->info->name);
> - return rc;
> + return devlink_info_version_fixed_put(req,
> + DEVLINK_INFO_VERSION_GENERIC_ASIC_ID,
> + priv->info->name);
> }
>
> int sja1105_devlink_setup(struct dsa_switch *ds)
> diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
> index 8a6f788f6294..26913dc816d3 100644
> --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
> +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
> @@ -892,10 +892,6 @@ static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
> u32 ver = 0;
> int rc;
>
> - rc = devlink_info_driver_name_put(req, DRV_MODULE_NAME);
> - if (rc)
> - return rc;
> -
> if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) {
> sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X",
> bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4],
> diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-devlink.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-devlink.c
> index 5c6dd3029e2f..76f808d38066 100644
> --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-devlink.c
> +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-devlink.c
> @@ -37,18 +37,9 @@ static int dpaa2_eth_dl_info_get(struct devlink *devlink,
> struct dpaa2_eth_devlink_priv *dl_priv = devlink_priv(devlink);
> struct dpaa2_eth_priv *priv = dl_priv->dpaa2_priv;
> char buf[10];
> - int err;
> -
> - err = devlink_info_driver_name_put(req, KBUILD_MODNAME);
> - if (err)
> - return err;
>
> scnprintf(buf, 10, "%d.%d", priv->dpni_ver_major, priv->dpni_ver_minor);
> - err = devlink_info_version_running_put(req, "dpni", buf);
> - if (err)
> - return err;
> -
> - return 0;
> + return devlink_info_version_running_put(req, "dpni", buf);
> }
>
> static struct dpaa2_eth_trap_item *
> diff --git a/drivers/net/ethernet/fungible/funeth/funeth_devlink.c b/drivers/net/ethernet/fungible/funeth/funeth_devlink.c
> index d50c222948b4..6668375edff6 100644
> --- a/drivers/net/ethernet/fungible/funeth/funeth_devlink.c
> +++ b/drivers/net/ethernet/fungible/funeth/funeth_devlink.c
> @@ -6,7 +6,7 @@
> static int fun_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
> struct netlink_ext_ack *extack)
> {
> - return devlink_info_driver_name_put(req, KBUILD_MODNAME);
> + return 0;
> }
>
> static const struct devlink_ops fun_dl_ops = {
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c
> index 4c441e6a5082..3d3b69605423 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c
> @@ -13,11 +13,6 @@ static int hclge_devlink_info_get(struct devlink *devlink,
> struct hclge_devlink_priv *priv = devlink_priv(devlink);
> char version_str[HCLGE_DEVLINK_FW_STRING_LEN];
> struct hclge_dev *hdev = priv->hdev;
> - int ret;
> -
> - ret = devlink_info_driver_name_put(req, KBUILD_MODNAME);
> - if (ret)
> - return ret;
>
> snprintf(version_str, sizeof(version_str), "%lu.%lu.%lu.%lu",
> hnae3_get_field(hdev->fw_version, HNAE3_FW_VERSION_BYTE3_MASK,
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c
> index fdc19868b818..a6c3c5e8f0ab 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c
> @@ -13,11 +13,6 @@ static int hclgevf_devlink_info_get(struct devlink *devlink,
> struct hclgevf_devlink_priv *priv = devlink_priv(devlink);
> char version_str[HCLGEVF_DEVLINK_FW_STRING_LEN];
> struct hclgevf_dev *hdev = priv->hdev;
> - int ret;
> -
> - ret = devlink_info_driver_name_put(req, KBUILD_MODNAME);
> - if (ret)
> - return ret;
>
> snprintf(version_str, sizeof(version_str), "%lu.%lu.%lu.%lu",
> hnae3_get_field(hdev->fw_version, HNAE3_FW_VERSION_BYTE3_MASK,
> diff --git a/drivers/net/ethernet/intel/ice/ice_devlink.c b/drivers/net/ethernet/intel/ice/ice_devlink.c
> index 1d638216484d..ba74977e75dc 100644
> --- a/drivers/net/ethernet/intel/ice/ice_devlink.c
> +++ b/drivers/net/ethernet/intel/ice/ice_devlink.c
> @@ -311,12 +311,6 @@ static int ice_devlink_info_get(struct devlink *devlink,
> }
> }
>
> - err = devlink_info_driver_name_put(req, KBUILD_MODNAME);
> - if (err) {
> - NL_SET_ERR_MSG_MOD(extack, "Unable to set driver name");
> - goto out_free_ctx;
> - }
> -
> ice_info_get_dsn(pf, ctx);
>
> err = devlink_info_serial_number_put(req, ctx->buf);
> diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
> index 88dee589cb21..f15439d26d21 100644
> --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
> +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
> @@ -1550,7 +1550,7 @@ static int rvu_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
> static int rvu_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
> struct netlink_ext_ack *extack)
> {
> - return devlink_info_driver_name_put(req, DRV_NAME);
> + return 0;
> }
>
> static const struct devlink_ops rvu_devlink_ops = {
> diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_devlink.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_devlink.c
> index 777a27047c8e..5cc6416cf1a6 100644
> --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_devlink.c
> +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_devlink.c
> @@ -77,18 +77,11 @@ static const struct devlink_param otx2_dl_params[] = {
> otx2_dl_mcam_count_validate),
> };
>
> -/* Devlink OPs */
> static int otx2_devlink_info_get(struct devlink *devlink,
> struct devlink_info_req *req,
> struct netlink_ext_ack *extack)
> {
> - struct otx2_devlink *otx2_dl = devlink_priv(devlink);
> - struct otx2_nic *pfvf = otx2_dl->pfvf;
> -
> - if (is_otx2_vf(pfvf->pcifunc))
> - return devlink_info_driver_name_put(req, "rvu_nicvf");
> -
> - return devlink_info_driver_name_put(req, "rvu_nicpf");
> + return 0;
> }
>
> static const struct devlink_ops otx2_devlink_ops = {
> diff --git a/drivers/net/ethernet/marvell/prestera/prestera_devlink.c b/drivers/net/ethernet/marvell/prestera/prestera_devlink.c
> index 84ad05c9f12d..2a4c9df4eb79 100644
> --- a/drivers/net/ethernet/marvell/prestera/prestera_devlink.c
> +++ b/drivers/net/ethernet/marvell/prestera/prestera_devlink.c
> @@ -355,11 +355,6 @@ static int prestera_dl_info_get(struct devlink *dl,
> {
> struct prestera_switch *sw = devlink_priv(dl);
> char buf[16];
> - int err;
> -
> - err = devlink_info_driver_name_put(req, PRESTERA_DRV_NAME);
> - if (err)
> - return err;
>
> snprintf(buf, sizeof(buf), "%d.%d.%d",
> sw->dev->fw_rev.maj,
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
> index cc2ae427dcb0..751bc4a9edcf 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
> @@ -46,10 +46,6 @@ mlx5_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
> u32 running_fw, stored_fw;
> int err;
>
> - err = devlink_info_driver_name_put(req, KBUILD_MODNAME);
> - if (err)
> - return err;
> -
> err = devlink_info_version_fixed_put(req, "fw.psid", dev->board_id);
> if (err)
> return err;
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
> index a83f6bc30072..a0a06e2eff82 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/core.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
> @@ -1459,11 +1459,6 @@ mlxsw_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
> char buf[32];
> int err;
>
> - err = devlink_info_driver_name_put(req,
> - mlxsw_core->bus_info->device_kind);
> - if (err)
> - return err;
> -
> mlxsw_reg_mgir_pack(mgir_pl);
> err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(mgir), mgir_pl);
> if (err)
> diff --git a/drivers/net/ethernet/netronome/nfp/nfp_devlink.c b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
> index 8bfd48d50ef0..4c601ff09cd3 100644
> --- a/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
> +++ b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
> @@ -239,10 +239,6 @@ nfp_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
> char *buf = NULL;
> int err;
>
> - err = devlink_info_driver_name_put(req, "nfp");
> - if (err)
> - return err;
> -
> vendor = nfp_hwinfo_lookup(pf->hwinfo, "assembly.vendor");
> part = nfp_hwinfo_lookup(pf->hwinfo, "assembly.partno");
> sn = nfp_hwinfo_lookup(pf->hwinfo, "assembly.serial");
> diff --git a/drivers/net/ethernet/pensando/ionic/ionic_devlink.c b/drivers/net/ethernet/pensando/ionic/ionic_devlink.c
> index 567f778433e2..e6ff757895ab 100644
> --- a/drivers/net/ethernet/pensando/ionic/ionic_devlink.c
> +++ b/drivers/net/ethernet/pensando/ionic/ionic_devlink.c
> @@ -26,10 +26,6 @@ static int ionic_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
> char buf[16];
> int err = 0;
>
> - err = devlink_info_driver_name_put(req, IONIC_DRV_NAME);
> - if (err)
> - return err;
> -
> err = devlink_info_version_running_put(req,
> DEVLINK_INFO_VERSION_GENERIC_FW,
> idev->dev_info.fw_version);
> diff --git a/drivers/net/ethernet/qlogic/qed/qed_devlink.c b/drivers/net/ethernet/qlogic/qed/qed_devlink.c
> index 6bb4e165b592..922c47797af6 100644
> --- a/drivers/net/ethernet/qlogic/qed/qed_devlink.c
> +++ b/drivers/net/ethernet/qlogic/qed/qed_devlink.c
> @@ -162,10 +162,6 @@ static int qed_devlink_info_get(struct devlink *devlink,
>
> dev_info = &cdev->common_dev_info;
>
> - err = devlink_info_driver_name_put(req, KBUILD_MODNAME);
> - if (err)
> - return err;
> -
> memcpy(buf, cdev->hwfns[0].hw_info.part_num, sizeof(cdev->hwfns[0].hw_info.part_num));
> buf[sizeof(cdev->hwfns[0].hw_info.part_num)] = 0;
>
> diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c
> index e14686594a71..b962fc8e1397 100644
> --- a/drivers/net/netdevsim/dev.c
> +++ b/drivers/net/netdevsim/dev.c
> @@ -994,9 +994,6 @@ static int nsim_dev_info_get(struct devlink *devlink,
> {
> int err;
>
> - err = devlink_info_driver_name_put(req, DRV_NAME);
> - if (err)
> - return err;
> err = devlink_info_version_stored_put_ext(req, "fw.mgmt", "10.20.30",
> DEVLINK_INFO_VERSION_TYPE_COMPONENT);
> if (err)
> diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c
> index 154d58cbd9ce..4bbaccd543ad 100644
> --- a/drivers/ptp/ptp_ocp.c
> +++ b/drivers/ptp/ptp_ocp.c
> @@ -1647,10 +1647,6 @@ ptp_ocp_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
> char buf[32];
> int err;
>
> - err = devlink_info_driver_name_put(req, KBUILD_MODNAME);
> - if (err)
> - return err;
> -
> fw_image = bp->fw_loader ? "loader" : "fw";
> sprintf(buf, "%d.%d", bp->fw_tag, bp->fw_version);
> err = devlink_info_version_running_put(req, fw_image, buf);
> diff --git a/net/core/devlink.c b/net/core/devlink.c
> index cea154ddce7a..6478135d9ba1 100644
> --- a/net/core/devlink.c
> +++ b/net/core/devlink.c
> @@ -6749,11 +6749,24 @@ int devlink_info_version_running_put_ext(struct devlink_info_req *req,
> }
> EXPORT_SYMBOL_GPL(devlink_info_version_running_put_ext);
>
> +static int devlink_nl_driver_info_get(struct device_driver *drv,
> + struct devlink_info_req *req)
> +{
> + if (!drv)
> + return 0;
> +
> + if (drv->name[0])
> + return devlink_info_driver_name_put(req, drv->name);
> +
> + return 0;
> +}
> +
> static int
> devlink_nl_info_fill(struct sk_buff *msg, struct devlink *devlink,
> enum devlink_command cmd, u32 portid,
> u32 seq, int flags, struct netlink_ext_ack *extack)
> {
> + struct device *dev = devlink_to_dev(devlink);
> struct devlink_info_req req = {};
> void *hdr;
> int err;
> @@ -6771,6 +6784,10 @@ devlink_nl_info_fill(struct sk_buff *msg, struct devlink *devlink,
> if (err)
> goto err_cancel_msg;
>
> + err = devlink_nl_driver_info_get(dev->driver, &req);
> + if (err)
> + goto err_cancel_msg;
> +
> genlmsg_end(msg, hdr);
> return 0;
>
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