From 226bf980550627c88549b112ac6c8fb40873afb4 Mon Sep 17 00:00:00 2001 From: Vincent Mailhol Date: Tue, 29 Nov 2022 18:51:38 +0900 Subject: [PATCH] net: devlink: let the core report the driver name instead of the drivers 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. Now that the core sets the driver name attribute, drivers are not supposed to call devlink_info_driver_name_put() anymore. Remove devlink_info_driver_name_put() and clean-up all the drivers using this function in their callback. Signed-off-by: Vincent Mailhol Tested-by: Ido Schimmel # mlxsw Reviewed-by: Jacob Keller Reviewed-by: Jiri Pirko Signed-off-by: Jakub Kicinski --- .../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 ----- .../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 --- .../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 --- include/net/devlink.h | 2 -- net/core/devlink.c | 26 +++++++++++++------ 22 files changed, 25 insertions(+), 106 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 946d64e577c9..8286e47b4bae 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 784f23602a8a..bf6bae557158 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/include/net/devlink.h b/include/net/devlink.h index 02528f736f65..5f6eca5e4a40 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -1762,8 +1762,6 @@ int devlink_region_snapshot_create(struct devlink_region *region, u8 *data, u32 snapshot_id); int devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn); -int devlink_info_driver_name_put(struct devlink_info_req *req, - const char *name); int devlink_info_board_serial_number_put(struct devlink_info_req *req, const char *bsn); diff --git a/net/core/devlink.c b/net/core/devlink.c index 298041a44aa8..60eb0f46520f 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -6707,14 +6707,6 @@ static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, return err; } -int devlink_info_driver_name_put(struct devlink_info_req *req, const char *name) -{ - if (!req->msg) - return 0; - return nla_put_string(req->msg, DEVLINK_ATTR_INFO_DRIVER_NAME, name); -} -EXPORT_SYMBOL_GPL(devlink_info_driver_name_put); - int devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn) { if (!req->msg) @@ -6823,11 +6815,25 @@ 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 nla_put_string(req->msg, DEVLINK_ATTR_INFO_DRIVER_NAME, + 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; @@ -6845,6 +6851,10 @@ 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;