devlink: Refactor devlink_rate_nodes_check

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 <cratiu@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260128112544.1661250-6-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/net/devlink/devl_internal.h b/net/devlink/devl_internal.h
index 14eaad9cfe35..1377864383bc 100644
--- a/net/devlink/devl_internal.h
+++ b/net/devlink/devl_internal.h
@@ -297,8 +297,10 @@ 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);