Messages in this thread | | | Subject | Re: [patch] openvswitch: using a bit shift as a mask | From | Jarno Rajahalme <> | Date | Fri, 18 Mar 2016 10:05:54 -0700 |
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> On Mar 17, 2016, at 3:41 AM, Dan Carpenter <dan.carpenter@oracle.com> wrote: > > The original condition is never true. We want to test if BIT(0) is set > but the code is ANDing with zero. > > Fixes: 05752523e565 ('openvswitch: Interface with NAT.') > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> > > diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c > index dc5eb29..29c82d6 100644 > --- a/net/openvswitch/conntrack.c > +++ b/net/openvswitch/conntrack.c > @@ -668,7 +668,7 @@ static int ovs_ct_nat(struct net *net, struct sw_flow_key *key, > */ > if (info->nat & OVS_CT_NAT && ctinfo != IP_CT_NEW && > ct->status & IPS_NAT_MASK && > - (!(ct->status & IPS_EXPECTED_BIT) || info->commit)) { > + (!(ct->status & IPS_EXPECTED) || info->commit)) { > /* NAT an established or related connection like before. */ > if (CTINFO2DIR(ctinfo) == IP_CT_DIR_REPLY) > /* This is the REPLY direction for a connection
Thanks for spotting this! Maybe it would be even better to use the test_bit() function, like this:
> + (!test_bit(IPS_EXPECTED_BIT, &ct->status) || info->commit)) {
Jarno
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