mirror of https://gitee.com/openkylin/linux.git
ematch: simpler tcf_em_unregister()
Simply delete ops from list and let list debugging do the job. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -246,7 +246,7 @@ struct tcf_ematch_ops
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};
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extern int tcf_em_register(struct tcf_ematch_ops *);
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extern int tcf_em_unregister(struct tcf_ematch_ops *);
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extern void tcf_em_unregister(struct tcf_ematch_ops *);
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extern int tcf_em_tree_validate(struct tcf_proto *, struct nlattr *,
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struct tcf_ematch_tree *);
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extern void tcf_em_tree_destroy(struct tcf_proto *, struct tcf_ematch_tree *);
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@ -71,7 +71,7 @@
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*
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* static void __exit exit_my_ematch(void)
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* {
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* return tcf_em_unregister(&my_ops);
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* tcf_em_unregister(&my_ops);
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* }
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*
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* module_init(init_my_ematch);
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@ -154,23 +154,11 @@ EXPORT_SYMBOL(tcf_em_register);
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*
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* Returns -ENOENT if no matching ematch was found.
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*/
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int tcf_em_unregister(struct tcf_ematch_ops *ops)
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void tcf_em_unregister(struct tcf_ematch_ops *ops)
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{
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int err = 0;
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struct tcf_ematch_ops *e;
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write_lock(&ematch_mod_lock);
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list_for_each_entry(e, &ematch_ops, link) {
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if (e == ops) {
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list_del(&e->link);
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goto out;
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}
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}
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err = -ENOENT;
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out:
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list_del(&ops->link);
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write_unlock(&ematch_mod_lock);
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return err;
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}
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EXPORT_SYMBOL(tcf_em_unregister);
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