[PATCH net-next V6 05/14] devlink: Refactor devlink_rate_nodes_check
From: Tariq Toukan <tariqt@nvidia.com>
Date: 2026-01-25 11:33:26
Also in:
linux-rdma, lkml, netdev
Subsystem:
devlink, networking [general], the rest · Maintainers:
Jiri Pirko, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Cosmin Ratiu <redacted> devlink_rate_nodes_check() was used to verify there are no devlink rate nodes created when switching the esw mode. Rate management code is about to become more complex, so refactor this function: - remove unused param 'mode'. - add a new 'rate_filter' param. - rename to devlink_rates_check(). - expose devlink_rate_is_node() to be used as a rate filter. This makes it more usable from multiple places, so use it from those places as well. Signed-off-by: Cosmin Ratiu <redacted> Reviewed-by: Carolina Jubran <redacted> Reviewed-by: Jiri Pirko <redacted> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> --- net/devlink/core.c | 2 +- net/devlink/dev.c | 7 ++++--- net/devlink/devl_internal.h | 6 ++++-- net/devlink/rate.c | 13 +++++++------ 4 files changed, 16 insertions(+), 12 deletions(-)
diff --git a/net/devlink/core.c b/net/devlink/core.c
index f228190df346..f72d8cc0d6dd 100644
--- a/net/devlink/core.c
+++ b/net/devlink/core.c@@ -517,7 +517,7 @@ void devlink_free(struct devlink *devlink) WARN_ON(!list_empty(&devlink->resource_list)); WARN_ON(!list_empty(&devlink->dpipe_table_list)); WARN_ON(!list_empty(&devlink->sb_list)); - WARN_ON(!list_empty(&devlink->rate_list)); + WARN_ON(devlink_rates_check(devlink, NULL, NULL)); WARN_ON(!list_empty(&devlink->linecard_list)); WARN_ON(!xa_empty(&devlink->ports));
diff --git a/net/devlink/dev.c b/net/devlink/dev.c
index 02602704bdea..e3a36de4f4ae 100644
--- a/net/devlink/dev.c
+++ b/net/devlink/dev.c@@ -434,7 +434,7 @@ static void devlink_reload_reinit_sanity_check(struct devlink *devlink) WARN_ON(!list_empty(&devlink->trap_list)); WARN_ON(!list_empty(&devlink->dpipe_table_list)); WARN_ON(!list_empty(&devlink->sb_list)); - WARN_ON(!list_empty(&devlink->rate_list)); + WARN_ON(devlink_rates_check(devlink, NULL, NULL)); WARN_ON(!list_empty(&devlink->linecard_list)); WARN_ON(!xa_empty(&devlink->ports)); }
@@ -713,10 +713,11 @@ int devlink_nl_eswitch_set_doit(struct sk_buff *skb, struct genl_info *info) if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { if (!ops->eswitch_mode_set) return -EOPNOTSUPP; - mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); - err = devlink_rate_nodes_check(devlink, mode, info->extack); + err = devlink_rates_check(devlink, devlink_rate_is_node, + info->extack); if (err) return err; + mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); err = ops->eswitch_mode_set(devlink, mode, info->extack); if (err) return err;
diff --git a/net/devlink/devl_internal.h b/net/devlink/devl_internal.h
index aea43d750d23..8374c9cab6ce 100644
--- a/net/devlink/devl_internal.h
+++ b/net/devlink/devl_internal.h@@ -300,8 +300,10 @@ int devlink_resources_validate(struct devlink *devlink, struct genl_info *info); /* Rates */ -int devlink_rate_nodes_check(struct devlink *devlink, u16 mode, - struct netlink_ext_ack *extack); +bool devlink_rate_is_node(const struct devlink_rate *devlink_rate); +int devlink_rates_check(struct devlink *devlink, + bool (*rate_filter)(const struct devlink_rate *), + struct netlink_ext_ack *extack); /* Linecards */ unsigned int devlink_linecard_index(struct devlink_linecard *linecard);
diff --git a/net/devlink/rate.c b/net/devlink/rate.c
index d157a8419bca..0d68b5c477dc 100644
--- a/net/devlink/rate.c
+++ b/net/devlink/rate.c@@ -12,8 +12,7 @@ devlink_rate_is_leaf(struct devlink_rate *devlink_rate) return devlink_rate->type == DEVLINK_RATE_TYPE_LEAF; } -static inline bool -devlink_rate_is_node(struct devlink_rate *devlink_rate) +bool devlink_rate_is_node(const struct devlink_rate *devlink_rate) { return devlink_rate->type == DEVLINK_RATE_TYPE_NODE; }
@@ -688,14 +687,16 @@ int devlink_nl_rate_del_doit(struct sk_buff *skb, struct genl_info *info) return err; } -int devlink_rate_nodes_check(struct devlink *devlink, u16 mode, - struct netlink_ext_ack *extack) +int devlink_rates_check(struct devlink *devlink, + bool (*rate_filter)(const struct devlink_rate *), + struct netlink_ext_ack *extack) { struct devlink_rate *devlink_rate; list_for_each_entry(devlink_rate, &devlink->rate_list, list) - if (devlink_rate_is_node(devlink_rate)) { - NL_SET_ERR_MSG(extack, "Rate node(s) exists."); + if (!rate_filter || rate_filter(devlink_rate)) { + if (extack) + NL_SET_ERR_MSG(extack, "Rate node(s) exists."); return -EBUSY; } return 0;
--
2.40.1