net/core/fib_rules.c

40 	if (READ_ONCE(rule->iifindex) || READ_ONCE(rule->oifindex) ||
260 static bool fib_rule_iif_match(const struct fib_rule *rule, int iifindex,
265 	return iif_is_l3_master ? l3mdev_fib_rule_iif_match(fl, iifindex) :
266 				  fl->flowi_iif == iifindex;
282 	int iifindex, oifindex, ret = 0;
284 	iifindex = READ_ONCE(rule->iifindex);
285 	if (iifindex && !fib_rule_iif_match(rule, iifindex, fl))
612 		nlrule->iifindex = -1;
758 			nlrule->iifindex = dev->ifindex;
1181 		if (READ_ONCE(rule->iifindex) == -1)
1362 		if (rule->iifindex == -1 &&
1364 			WRITE_ONCE(rule->iifindex, dev->ifindex);
1382 		if (rule->iifindex == dev->ifindex) {
1383 			WRITE_ONCE(rule->iifindex, -1);