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igmp: fix incorrect unsolicit report count when join group
We should not start timer if im->unsolicit_count equal to 0 after decrease.
Or we will send one more unsolicit report message. i.e. 3 instead of 2 by
default.
Fixes: 1da177e4c3
("Linux-2.6.12-rc2")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
93bbadd6e0
commit
4fb7253e4f
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@ -820,10 +820,9 @@ static void igmp_timer_expire(struct timer_list *t)
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spin_lock(&im->lock);
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spin_lock(&im->lock);
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im->tm_running = 0;
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im->tm_running = 0;
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if (im->unsolicit_count) {
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if (im->unsolicit_count && --im->unsolicit_count)
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im->unsolicit_count--;
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igmp_start_timer(im, unsolicited_report_interval(in_dev));
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igmp_start_timer(im, unsolicited_report_interval(in_dev));
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}
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im->reporter = 1;
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im->reporter = 1;
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spin_unlock(&im->lock);
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spin_unlock(&im->lock);
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