devlink: un-static devlink_nl_pre/post_doit()

To be prepared for the follow-up generated split ops addition,
make the functions devlink_nl_pre_doit() and devlink_nl_post_doit()
usable outside of netlink.c. Introduce temporary prototypes which are
going to be removed once the generated header will be included.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230803111340.1074067-9-jiri@resnulli.usSigned-off-by: Jakub Kicinski <kuba@kernel.org>

net/devlink/devl_internal.h

@@ -216,6 +216,10 @@ struct devlink_rate *
 devlink_rate_node_get_from_info(struct devlink *devlink,
 				struct genl_info *info);
 /* Devlink nl cmds */
+int devlink_nl_pre_doit(const struct genl_split_ops *ops,
+			struct sk_buff *skb, struct genl_info *info);
+void devlink_nl_post_doit(const struct genl_split_ops *ops,
+			  struct sk_buff *skb, struct genl_info *info);
 int devlink_nl_get_doit(struct sk_buff *skb, struct genl_info *info);
 int devlink_nl_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb);
 int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info);

net/devlink/netlink.c

@@ -109,7 +109,7 @@ devlink_get_from_attrs_lock(struct net *net, struct nlattr **attrs)
 	return ERR_PTR(-ENODEV);
 }
 
-static int devlink_nl_pre_doit(const struct genl_split_ops *ops,
+int devlink_nl_pre_doit(const struct genl_split_ops *ops,
 			struct sk_buff *skb, struct genl_info *info)
 {
 	struct devlink_linecard *linecard;
@@ -167,7 +167,7 @@ static int devlink_nl_pre_doit(const struct genl_split_ops *ops,
 	return err;
 }
 
-static void devlink_nl_post_doit(const struct genl_split_ops *ops,
+void devlink_nl_post_doit(const struct genl_split_ops *ops,
 			  struct sk_buff *skb, struct genl_info *info)
 {
 	struct devlink *devlink;