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author | Cong Wang <xiyou.wangcong@gmail.com> | 2020-09-28 21:31:03 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-29 12:07:02 +0300 |
commit | 7f1b0fa4805cf360d250316ca26e4ccac27b11c7 (patch) | |
tree | 8249e1aec10ca362b772a1c8cdd2c1836f5c3a62 /net | |
parent | f736e9e2f7502775c1fc03d22107a65adf0edc90 (diff) | |
download | linux-7f1b0fa4805cf360d250316ca26e4ccac27b11c7.tar.xz |
net_sched: remove a redundant goto chain check
[ Upstream commit 1aad8049909a6d3379175ef2824a68ac35c0b564 ]
All TC actions call tcf_action_check_ctrlact() to validate
goto chain, so this check in tcf_action_init_1() is actually
redundant. Remove it to save troubles of leaking memory.
Fixes: e49d8c22f126 ("net_sched: defer tcf_idr_insert() in tcf_action_init_1()")
Reported-by: Vlad Buslov <vladbu@mellanox.com>
Suggested-by: Davide Caratti <dcaratti@redhat.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
-rw-r--r-- | net/sched/act_api.c | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c index aa69fc4ce39d..3715b1261c6f 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -722,13 +722,6 @@ int tcf_action_destroy(struct tc_action *actions[], int bind) return ret; } -static int tcf_action_destroy_1(struct tc_action *a, int bind) -{ - struct tc_action *actions[] = { a, NULL }; - - return tcf_action_destroy(actions, bind); -} - static int tcf_action_put(struct tc_action *p) { return __tcf_action_put(p, false); @@ -1000,13 +993,6 @@ struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp, if (err < 0) goto err_mod; - if (TC_ACT_EXT_CMP(a->tcfa_action, TC_ACT_GOTO_CHAIN) && - !rcu_access_pointer(a->goto_chain)) { - tcf_action_destroy_1(a, bind); - NL_SET_ERR_MSG(extack, "can't use goto chain with NULL chain"); - return ERR_PTR(-EINVAL); - } - if (!name && tb[TCA_ACT_COOKIE]) tcf_set_action_cookie(&a->act_cookie, cookie); |