2305 	struct ip_sf_socklist *psl;  in ip_mc_source()  local
2350 	psl = rtnl_dereference(pmc->sflist);  in ip_mc_source()
2352 		if (!psl)  in ip_mc_source()
2355 		for (i = 0; i < psl->sl_count; i++) {  in ip_mc_source()
2356 			rv = memcmp(&psl->sl_addr[i], &mreqs->imr_sourceaddr,  in ip_mc_source()
2365 		if (psl->sl_count == 1 && omode == MCAST_INCLUDE) {  in ip_mc_source()
2374 		for (j = i+1; j < psl->sl_count; j++)  in ip_mc_source()
2375 			psl->sl_addr[j-1] = psl->sl_addr[j];  in ip_mc_source()
2376 		psl->sl_count--;  in ip_mc_source()
2382 	if (psl && psl->sl_count >= READ_ONCE(net->ipv4.sysctl_igmp_max_msf)) {  in ip_mc_source()
2386 	if (!psl || psl->sl_count == psl->sl_max) {  in ip_mc_source()
2390 		if (psl)  in ip_mc_source()
2391 			count += psl->sl_max;  in ip_mc_source()
2399 		if (psl) {  in ip_mc_source()
2400 			for (i = 0; i < psl->sl_count; i++)  in ip_mc_source()
2401 				newpsl->sl_addr[i] = psl->sl_addr[i];  in ip_mc_source()
2403 			atomic_sub(IP_SFLSIZE(psl->sl_max), &sk->sk_omem_alloc);  in ip_mc_source()
2406 		if (psl)  in ip_mc_source()
2407 			kfree_rcu(psl, rcu);  in ip_mc_source()
2408 		psl = newpsl;  in ip_mc_source()
2411 	for (i = 0; i < psl->sl_count; i++) {  in ip_mc_source()
2412 		rv = memcmp(&psl->sl_addr[i], &mreqs->imr_sourceaddr,  in ip_mc_source()
2419 	for (j = psl->sl_count-1; j >= i; j--)  in ip_mc_source()
2420 		psl->sl_addr[j+1] = psl->sl_addr[j];  in ip_mc_source()
2421 	psl->sl_addr[i] = mreqs->imr_sourceaddr;  in ip_mc_source()
2422 	psl->sl_count++;  in ip_mc_source()
2441 	struct ip_sf_socklist *newpsl, *psl;  in ip_mc_msfilter()  local
2499 	psl = rtnl_dereference(pmc->sflist);  in ip_mc_msfilter()
2500 	if (psl) {  in ip_mc_msfilter()
2502 			psl->sl_count, psl->sl_addr, 0);  in ip_mc_msfilter()
2504 		atomic_sub(IP_SFLSIZE(psl->sl_max), &sk->sk_omem_alloc);  in ip_mc_msfilter()
2510 	if (psl)  in ip_mc_msfilter()
2511 		kfree_rcu(psl, rcu);  in ip_mc_msfilter()
2529 	struct ip_sf_socklist *psl;  in ip_mc_msfget()  local
2556 	psl = rtnl_dereference(pmc->sflist);  in ip_mc_msfget()
2557 	if (!psl) {  in ip_mc_msfget()
2561 		count = psl->sl_count;  in ip_mc_msfget()
2564 	len = copycount * sizeof(psl->sl_addr[0]);  in ip_mc_msfget()
2571 	    copy_to_user(&optval->imsf_slist[0], psl->sl_addr, len))  in ip_mc_msfget()
2586 	struct ip_sf_socklist *psl;  in ip_mc_gsfget()  local
2605 	psl = rtnl_dereference(pmc->sflist);  in ip_mc_gsfget()
2606 	count = psl ? psl->sl_count : 0;  in ip_mc_gsfget()
2615 		psin->sin_addr.s_addr = psl->sl_addr[i];  in ip_mc_gsfget()
2630 	struct ip_sf_socklist *psl;  in ip_mc_sf_allow()  local
2648 	psl = rcu_dereference(pmc->sflist);  in ip_mc_sf_allow()
2650 	if (!psl)  in ip_mc_sf_allow()
2653 	for (i = 0; i < psl->sl_count; i++) {  in ip_mc_sf_allow()
2654 		if (psl->sl_addr[i] == rmt_addr)  in ip_mc_sf_allow()
2658 	if (pmc->sfmode == MCAST_INCLUDE && i >= psl->sl_count)  in ip_mc_sf_allow()
2660 	if (pmc->sfmode == MCAST_EXCLUDE && i < psl->sl_count)  in ip_mc_sf_allow()