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tipc: Fix recognition of trial period

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[ Upstream commit 28be7ca4fc ]

The trial period exists until jiffies is after addr_trial_end. But as
jiffies will eventually overflow, just using time_after will eventually
give incorrect results. As the node address is set once the trial period
ends, this can be used to know that we are not in the trial period.

Fixes: e415577f57 ("tipc: correct discovery message handling during address trial period")
Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mark Tomlinson
2022-10-10 15:46:13 +13:00
committed by Greg Kroah-Hartman
parent fc8c6b8bb2
commit 1f4ed95ce6
1 changed files with 1 additions and 1 deletions
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2
net/tipc/discover.c
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@@ -147,8 +147,8 @@ static bool tipc_disc_addr_trial_msg(struct tipc_discoverer *d,
{
struct net *net = d->net;
struct tipc_net *tn = tipc_net(net);
bool trial = time_before(jiffies, tn->addr_trial_end);
u32 self = tipc_own_addr(net);
bool trial = time_before(jiffies, tn->addr_trial_end) && !self;
if (mtyp == DSC_TRIAL_FAIL_MSG) {
if (!trial)