devlink: remove netlink small_ops

All commands are now covered by generated split_ops. Remove the
small_ops entirely alongside with unified devlink netlink policy array.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231021112711.660606-11-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 1 insertions, 327 deletions

diff --git a/net/devlink/netlink.c b/net/devlink/netlink.c
index ca63e59a5e92..d0b90ebc8b15 100644
--- a/net/devlink/netlink.c
+++ b/net/devlink/netlink.c
@@ -13,75 +13,6 @@ static const struct genl_multicast_group devlink_nl_mcgrps[] = {
 	[DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME },
 };
 
-static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {
-	[DEVLINK_ATTR_UNSPEC] = { .strict_start_type =
-		DEVLINK_ATTR_TRAP_POLICER_ID },
-	[DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_PORT_TYPE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_PORT_TYPE_AUTO,
-						    DEVLINK_PORT_TYPE_IB),
-	[DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 },
-	[DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 },
-	[DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 },
-	[DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 },
-	[DEVLINK_ATTR_ESWITCH_MODE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_ESWITCH_MODE_LEGACY,
-						       DEVLINK_ESWITCH_MODE_SWITCHDEV),
-	[DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 },
-	[DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 },
-	[DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 },
-	[DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64},
-	[DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64},
-	[DEVLINK_ATTR_PARAM_NAME] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_PARAM_TYPE] = { .type = NLA_U8 },
-	[DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 },
-	[DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_REGION_CHUNK_ADDR] = { .type = NLA_U64 },
-	[DEVLINK_ATTR_REGION_CHUNK_LEN] = { .type = NLA_U64 },
-	[DEVLINK_ATTR_HEALTH_REPORTER_NAME] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] = { .type = NLA_U64 },
-	[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER] = { .type = NLA_U8 },
-	[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_FLASH_UPDATE_COMPONENT] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK] =
-		NLA_POLICY_BITFIELD32(DEVLINK_SUPPORTED_FLASH_OVERWRITE_SECTIONS),
-	[DEVLINK_ATTR_TRAP_NAME] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_TRAP_ACTION] = { .type = NLA_U8 },
-	[DEVLINK_ATTR_TRAP_GROUP_NAME] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_NETNS_PID] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_NETNS_FD] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_NETNS_ID] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP] = { .type = NLA_U8 },
-	[DEVLINK_ATTR_TRAP_POLICER_ID] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_TRAP_POLICER_RATE] = { .type = NLA_U64 },
-	[DEVLINK_ATTR_TRAP_POLICER_BURST] = { .type = NLA_U64 },
-	[DEVLINK_ATTR_PORT_FUNCTION] = { .type = NLA_NESTED },
-	[DEVLINK_ATTR_RELOAD_ACTION] = NLA_POLICY_RANGE(NLA_U8, DEVLINK_RELOAD_ACTION_DRIVER_REINIT,
-							DEVLINK_RELOAD_ACTION_MAX),
-	[DEVLINK_ATTR_RELOAD_LIMITS] = NLA_POLICY_BITFIELD32(DEVLINK_RELOAD_LIMITS_VALID_MASK),
-	[DEVLINK_ATTR_PORT_FLAVOUR] = { .type = NLA_U16 },
-	[DEVLINK_ATTR_PORT_PCI_PF_NUMBER] = { .type = NLA_U16 },
-	[DEVLINK_ATTR_PORT_PCI_SF_NUMBER] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_RATE_TYPE] = { .type = NLA_U16 },
-	[DEVLINK_ATTR_RATE_TX_SHARE] = { .type = NLA_U64 },
-	[DEVLINK_ATTR_RATE_TX_MAX] = { .type = NLA_U64 },
-	[DEVLINK_ATTR_RATE_NODE_NAME] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_LINECARD_INDEX] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_LINECARD_TYPE] = { .type = NLA_NUL_STRING },
-	[DEVLINK_ATTR_SELFTESTS] = { .type = NLA_NESTED },
-	[DEVLINK_ATTR_RATE_TX_PRIORITY] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_RATE_TX_WEIGHT] = { .type = NLA_U32 },
-	[DEVLINK_ATTR_REGION_DIRECT] = { .type = NLA_FLAG },
-};
-
 int devlink_nl_put_nested_handle(struct sk_buff *msg, struct net *net,
 				 struct devlink *devlink, int attrtype)
 {
@@ -191,7 +122,7 @@ unlock:
 int devlink_nl_pre_doit(const struct genl_split_ops *ops,
 			struct sk_buff *skb, struct genl_info *info)
 {
-	return __devlink_nl_pre_doit(skb, info, ops->internal_flags);
+	return __devlink_nl_pre_doit(skb, info, 0);
 }
 
 int devlink_nl_pre_doit_port(const struct genl_split_ops *ops,
@@ -287,269 +218,12 @@ int devlink_nl_dumpit(struct sk_buff *msg, struct netlink_callback *cb,
 		return devlink_nl_inst_iter_dumpit(msg, cb, flags, dump_one);
 }
 
-static const struct genl_small_ops devlink_nl_small_ops[40] = {
-	{
-		.cmd = DEVLINK_CMD_PORT_SET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_port_set_doit,
-		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
-	},
-	{
-		.cmd = DEVLINK_CMD_RATE_SET,
-		.doit = devlink_nl_rate_set_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_RATE_NEW,
-		.doit = devlink_nl_rate_new_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_RATE_DEL,
-		.doit = devlink_nl_rate_del_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_PORT_SPLIT,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_port_split_doit,
-		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
-	},
-	{
-		.cmd = DEVLINK_CMD_PORT_UNSPLIT,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_port_unsplit_doit,
-		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
-	},
-	{
-		.cmd = DEVLINK_CMD_PORT_NEW,
-		.doit = devlink_nl_port_new_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_PORT_DEL,
-		.doit = devlink_nl_port_del_doit,
-		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
-	},
-
-	{
-		.cmd = DEVLINK_CMD_LINECARD_SET,
-		.doit = devlink_nl_linecard_set_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_SB_POOL_SET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_sb_pool_set_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_SB_PORT_POOL_SET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_sb_port_pool_set_doit,
-		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
-	},
-	{
-		.cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_sb_tc_pool_bind_set_doit,
-		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
-	},
-	{
-		.cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_sb_occ_snapshot_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_sb_occ_max_clear_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_ESWITCH_GET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_eswitch_get_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_ESWITCH_SET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_eswitch_set_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_DPIPE_TABLE_GET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_dpipe_table_get_doit,
-		/* can be retrieved by unprivileged users */
-	},
-	{
-		.cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_dpipe_entries_get_doit,
-		/* can be retrieved by unprivileged users */
-	},
-	{
-		.cmd = DEVLINK_CMD_DPIPE_HEADERS_GET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_dpipe_headers_get_doit,
-		/* can be retrieved by unprivileged users */
-	},
-	{
-		.cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_dpipe_table_counters_set_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_RESOURCE_SET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_resource_set_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_RESOURCE_DUMP,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_resource_dump_doit,
-		/* can be retrieved by unprivileged users */
-	},
-	{
-		.cmd = DEVLINK_CMD_RELOAD,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_reload_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_PARAM_SET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_param_set_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_PORT_PARAM_GET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_port_param_get_doit,
-		.dumpit = devlink_nl_port_param_get_dumpit,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
-		/* can be retrieved by unprivileged users */
-	},
-	{
-		.cmd = DEVLINK_CMD_PORT_PARAM_SET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_port_param_set_doit,
-		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
-	},
-	{
-		.cmd = DEVLINK_CMD_REGION_NEW,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_region_new_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_REGION_DEL,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_region_del_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_REGION_READ,
-		.validate = GENL_DONT_VALIDATE_STRICT |
-			    GENL_DONT_VALIDATE_DUMP_STRICT,
-		.dumpit = devlink_nl_region_read_dumpit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_HEALTH_REPORTER_SET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_health_reporter_set_doit,
-		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
-	},
-	{
-		.cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_health_reporter_recover_doit,
-		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
-	},
-	{
-		.cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_health_reporter_diagnose_doit,
-		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
-	},
-	{
-		.cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET,
-		.validate = GENL_DONT_VALIDATE_STRICT |
-			    GENL_DONT_VALIDATE_DUMP_STRICT,
-		.dumpit = devlink_nl_health_reporter_dump_get_dumpit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_health_reporter_dump_clear_doit,
-		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
-	},
-	{
-		.cmd = DEVLINK_CMD_HEALTH_REPORTER_TEST,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_health_reporter_test_doit,
-		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
-	},
-	{
-		.cmd = DEVLINK_CMD_FLASH_UPDATE,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.doit = devlink_nl_flash_update_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_TRAP_SET,
-		.doit = devlink_nl_trap_set_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_TRAP_GROUP_SET,
-		.doit = devlink_nl_trap_group_set_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_TRAP_POLICER_SET,
-		.doit = devlink_nl_trap_policer_set_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	{
-		.cmd = DEVLINK_CMD_SELFTESTS_RUN,
-		.doit = devlink_nl_selftests_run_doit,
-		.flags = GENL_ADMIN_PERM,
-	},
-	/* -- No new ops here! Use split ops going forward! -- */
-};
-
 struct genl_family devlink_nl_family __ro_after_init = {
 	.name		= DEVLINK_GENL_NAME,
 	.version	= DEVLINK_GENL_VERSION,
-	.maxattr	= DEVLINK_ATTR_MAX,
-	.policy		= devlink_nl_policy,
 	.netnsok	= true,
 	.parallel_ops	= true,
-	.pre_doit	= devlink_nl_pre_doit,
-	.post_doit	= devlink_nl_post_doit,
 	.module		= THIS_MODULE,
-	.small_ops	= devlink_nl_small_ops,
-	.n_small_ops	= ARRAY_SIZE(devlink_nl_small_ops),
 	.split_ops	= devlink_nl_ops,
 	.n_split_ops	= ARRAY_SIZE(devlink_nl_ops),
 	.resv_start_op	= DEVLINK_CMD_SELFTESTS_RUN + 1,