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net: sched: fw: don't set arg->stop in fw_walk() when empty 

Some classifiers set arg->stop in their implementation of tp->walk() API
when empty. Most of classifiers do not adhere to that convention. Do not
set arg->stop in fw_walk() to unify tp->walk() behavior among classifier
implementations.

Fixes: ed76f5edcc ("net: sched: protect filter_chain list with filter_chain_lock mutex")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Buslov 2019-02-15 17:20:07 +02:00 committed by David S. Miller
parent 1eb00162f8
commit 31a9984876
1 changed files with 1 additions and 4 deletions
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5
net/sched/cls_fw.c
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@ -362,10 +362,7 @@ static void fw_walk(struct tcf_proto *tp, struct tcf_walker *arg,
struct fw_head *head = rtnl_dereference(tp->root);
int h;
if (head == NULL)
arg->stop = 1;
if (arg->stop)
if (head == NULL || arg->stop)
return;
for (h = 0; h < HTSIZE; h++) {