[net-next,v5,1/4] net: devlink: let the core report the driver name instead of the drivers
Commit Message
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@wanadoo.fr>
Tested-by: Ido Schimmel <idosch@nvidia.com> # mlxsw
---
.../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(-)
Comments
Tue, Nov 29, 2022 at 01:05:47AM CET, mailhol.vincent@wanadoo.fr 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.
This para with the link below should be removed, no need for it.
Otherwise, code looks fine.
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
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@wanadoo.fr>
> Tested-by: Ido Schimmel <idosch@nvidia.com> # mlxsw
For ptp_ocp driver:
Acked-by: Vadim Fedorenko <vadfed@fb.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;
>
@@ -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)
@@ -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,
@@ -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,
@@ -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)
@@ -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],
@@ -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 *
@@ -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 = {
@@ -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,
@@ -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,
@@ -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);
@@ -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 = {
@@ -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 = {
@@ -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,
@@ -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;
@@ -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)
@@ -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");
@@ -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);
@@ -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;
@@ -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)
@@ -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);
@@ -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;