@@ -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;
@@ -1453,18 +1453,12 @@ mlxsw_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
struct netlink_ext_ack *extack)
{
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
- struct device *dev = mlxsw_core->bus_info->dev;
char fw_info_psid[MLXSW_REG_MGIR_FW_INFO_PSID_SIZE];
u32 hw_rev, fw_major, fw_minor, fw_sub_minor;
char mgir_pl[MLXSW_REG_MGIR_LEN];
char buf[32];
int err;
- err = devlink_info_driver_name_put(req,
- dev_driver_string(dev->parent));
- 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;
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] https://elixir.bootlin.com/linux/v6.0/source/lib/nlattr.c#L993 Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> --- .../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 | 6 ------ .../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(+), 97 deletions(-)