Hi Taehee, Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on net-next/master] url: https://github.com/0day-ci/linux/commits/Taehee-Yoo/mld-change-context-from-atomic-to-sleepable/20210214-015930 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 3c5a2fd042d0bfac71a2dfb99515723d318df47b config: x86_64-randconfig-s022-20210214 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-215-g0fb77bb6-dirty # https://github.com/0day-ci/linux/commit/05d3b96bdcaec52bc3f2ef1f96e571dc17bf9f5a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Taehee-Yoo/mld-change-context-from-atomic-to-sleepable/20210214-015930 git checkout 05d3b96bdcaec52bc3f2ef1f96e571dc17bf9f5a # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> "sparse warnings: (new ones prefixed by >>)" >> net/ipv6/mcast.c:764:44: sparse: sparse: incorrect type in assignment >> (different address spaces) @@ expected struct ifmcaddr6 *[assigned] pmc >> @@ got struct ifmcaddr6 [noderef] __rcu *next @@ net/ipv6/mcast.c:764:44: sparse: expected struct ifmcaddr6 *[assigned] pmc net/ipv6/mcast.c:764:44: sparse: got struct ifmcaddr6 [noderef] __rcu *next >> net/ipv6/mcast.c:773:39: sparse: sparse: incorrect type in assignment >> (different address spaces) @@ expected struct ifmcaddr6 *mc_tomb @@ >> got struct ifmcaddr6 [noderef] __rcu *next @@ net/ipv6/mcast.c:773:39: sparse: expected struct ifmcaddr6 *mc_tomb net/ipv6/mcast.c:773:39: sparse: got struct ifmcaddr6 [noderef] __rcu *next net/ipv6/mcast.c:781:35: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ip6_sf_list [noderef] __rcu *__tmp @@ got struct ip6_sf_list * @@ net/ipv6/mcast.c:781:35: sparse: expected struct ip6_sf_list [noderef] __rcu *__tmp net/ipv6/mcast.c:781:35: sparse: got struct ip6_sf_list * net/ipv6/mcast.c:781:33: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ip6_sf_list *sources @@ got struct ip6_sf_list [noderef] __rcu *__tmp @@ net/ipv6/mcast.c:781:33: sparse: expected struct ip6_sf_list *sources net/ipv6/mcast.c:781:33: sparse: got struct ip6_sf_list [noderef] __rcu *__tmp >> net/ipv6/mcast.c:804:25: sparse: sparse: incorrect type in assignment >> (different address spaces) @@ expected struct ifmcaddr6 *nextpmc @@ >> got struct ifmcaddr6 [noderef] __rcu *next @@ net/ipv6/mcast.c:804:25: sparse: expected struct ifmcaddr6 *nextpmc net/ipv6/mcast.c:804:25: sparse: got struct ifmcaddr6 [noderef] __rcu *next net/ipv6/mcast.c:2301:43: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ip6_sf_list *[assigned] dpsf @@ got struct ip6_sf_list [noderef] __rcu *sf_next @@ net/ipv6/mcast.c:2301:43: sparse: expected struct ip6_sf_list *[assigned] dpsf net/ipv6/mcast.c:2301:43: sparse: got struct ip6_sf_list [noderef] __rcu *sf_next net/ipv6/mcast.c:2311:63: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ip6_sf_list *mca_tomb @@ got struct ip6_sf_list [noderef] __rcu *sf_next @@ net/ipv6/mcast.c:2311:63: sparse: expected struct ip6_sf_list *mca_tomb net/ipv6/mcast.c:2311:63: sparse: got struct ip6_sf_list [noderef] __rcu *sf_next net/ipv6/mcast.c:2323:63: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ip6_sf_list *[assigned] dpsf @@ got struct ip6_sf_list [noderef] __rcu *sf_next @@ net/ipv6/mcast.c:2323:63: sparse: expected struct ip6_sf_list *[assigned] dpsf net/ipv6/mcast.c:2323:63: sparse: got struct ip6_sf_list [noderef] __rcu *sf_next net/ipv6/mcast.c:2332:47: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ip6_sf_list [noderef] __rcu *sf_next @@ got struct ip6_sf_list *mca_tomb @@ net/ipv6/mcast.c:2332:47: sparse: expected struct ip6_sf_list [noderef] __rcu *sf_next net/ipv6/mcast.c:2332:47: sparse: got struct ip6_sf_list *mca_tomb net/ipv6/mcast.c:2410:25: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ip6_sf_list *nextpsf @@ got struct ip6_sf_list [noderef] __rcu *sf_next @@ net/ipv6/mcast.c:2410:25: sparse: expected struct ip6_sf_list *nextpsf net/ipv6/mcast.c:2410:25: sparse: got struct ip6_sf_list [noderef] __rcu *sf_next net/ipv6/mcast.c:449:17: sparse: sparse: incompatible types in comparison expression (different address spaces): net/ipv6/mcast.c:449:17: sparse: struct ip6_sf_socklist [noderef] __rcu * net/ipv6/mcast.c:449:17: sparse: struct ip6_sf_socklist * >> net/ipv6/mcast.c:935:38: sparse: sparse: incorrect type in assignment >> (different address spaces) @@ expected struct ifmcaddr6 [noderef] __rcu >> * @@ got struct ifmcaddr6 * @@ net/ipv6/mcast.c: note: in included file: include/net/mld.h:32:43: sparse: sparse: array of flexible structures net/ipv6/mcast.c:1777:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ip6_sf_list [noderef] __rcu * @@ got struct ip6_sf_list * @@ net/ipv6/mcast.c:1833:51: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ip6_sf_list [noderef] __rcu * @@ got struct ip6_sf_list * @@ net/ipv6/mcast.c:1901:20: sparse: sparse: incompatible types in comparison expression (different address spaces): net/ipv6/mcast.c:1901:20: sparse: struct ip6_sf_list [noderef] __rcu * net/ipv6/mcast.c:1901:20: sparse: struct ip6_sf_list * >> net/ipv6/mcast.c:1925:26: sparse: sparse: incorrect type in assignment >> (different address spaces) @@ expected struct ifmcaddr6 *pmc_next @@ >> got struct ifmcaddr6 [noderef] __rcu *next @@ net/ipv6/mcast.c:1925:26: sparse: expected struct ifmcaddr6 *pmc_next net/ipv6/mcast.c:1925:26: sparse: got struct ifmcaddr6 [noderef] __rcu *next net/ipv6/mcast.c:1940:50: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ip6_sf_list **ppsf @@ got struct ip6_sf_list [noderef] __rcu ** @@ net/ipv6/mcast.c:1940:50: sparse: expected struct ip6_sf_list **ppsf net/ipv6/mcast.c:1940:50: sparse: got struct ip6_sf_list [noderef] __rcu ** >> net/ipv6/mcast.c:1946:48: sparse: sparse: incorrect type in assignment >> (different address spaces) @@ expected struct ifmcaddr6 [noderef] __rcu >> *next @@ got struct ifmcaddr6 *pmc_next @@ net/ipv6/mcast.c:1946:48: sparse: expected struct ifmcaddr6 [noderef] __rcu *next net/ipv6/mcast.c:1946:48: sparse: got struct ifmcaddr6 *pmc_next net/ipv6/mcast.c: note: in included file (through include/linux/rbtree.h, include/linux/mm_types.h, include/linux/mmzone.h, ...): include/linux/rcupdate.h:700:9: sparse: sparse: context imbalance in 'ip6_mc_msfget' - unexpected unlock vim +764 net/ipv6/mcast.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 756 1666d49e1d416f Hangbin Liu 2017-01-12 757 static void mld_del_delrec(struct inet6_dev *idev, struct ifmcaddr6 *im) ^1da177e4c3f41 Linus Torvalds 2005-04-16 758 { 1666d49e1d416f Hangbin Liu 2017-01-12 759 struct in6_addr *pmca = &im->mca_addr; 50d689e601cc17 Taehee Yoo 2021-02-13 760 struct ip6_sf_list *psf, *sources; 50d689e601cc17 Taehee Yoo 2021-02-13 761 struct ifmcaddr6 *pmc, *pmc_prev; ^1da177e4c3f41 Linus Torvalds 2005-04-16 762 ^1da177e4c3f41 Linus Torvalds 2005-04-16 763 pmc_prev = NULL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 @764 for (pmc = idev->mc_tomb; pmc; pmc = pmc->next) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 765 if (ipv6_addr_equal(&pmc->mca_addr, pmca)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 766 break; ^1da177e4c3f41 Linus Torvalds 2005-04-16 767 pmc_prev = pmc; ^1da177e4c3f41 Linus Torvalds 2005-04-16 768 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 769 if (pmc) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 770 if (pmc_prev) ^1da177e4c3f41 Linus Torvalds 2005-04-16 771 pmc_prev->next = pmc->next; ^1da177e4c3f41 Linus Torvalds 2005-04-16 772 else ^1da177e4c3f41 Linus Torvalds 2005-04-16 @773 idev->mc_tomb = pmc->next; ^1da177e4c3f41 Linus Torvalds 2005-04-16 774 } 6457d26bd40077 Stephen Hemminger 2010-02-17 775 ^1da177e4c3f41 Linus Torvalds 2005-04-16 776 if (pmc) { 1666d49e1d416f Hangbin Liu 2017-01-12 777 im->idev = pmc->idev; 08d3ffcc0cfaba Hangbin Liu 2018-07-20 778 if (im->mca_sfmode == MCAST_INCLUDE) { a84d016479896b Eric Dumazet 2019-08-27 779 swap(im->mca_tomb, pmc->mca_tomb); 50d689e601cc17 Taehee Yoo 2021-02-13 780 50d689e601cc17 Taehee Yoo 2021-02-13 781 sources = rcu_replace_pointer(im->mca_sources, 50d689e601cc17 Taehee Yoo 2021-02-13 782 pmc->mca_sources, 50d689e601cc17 Taehee Yoo 2021-02-13 783 lockdep_rtnl_is_held()); 50d689e601cc17 Taehee Yoo 2021-02-13 784 rcu_assign_pointer(pmc->mca_sources, sources); 50d689e601cc17 Taehee Yoo 2021-02-13 785 for_each_psf_rtnl(im, psf) c7ea20c9da5b94 Hangbin Liu 2018-07-10 786 psf->sf_crcount = idev->mc_qrv; c7ea20c9da5b94 Hangbin Liu 2018-07-10 787 } else { c7ea20c9da5b94 Hangbin Liu 2018-07-10 788 im->mca_crcount = idev->mc_qrv; ^1da177e4c3f41 Linus Torvalds 2005-04-16 789 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 790 in6_dev_put(pmc->idev); a84d016479896b Eric Dumazet 2019-08-27 791 ip6_mc_clear_src(pmc); 9c8bb163ae784b Hangbin Liu 2017-02-08 792 kfree(pmc); ^1da177e4c3f41 Linus Torvalds 2005-04-16 793 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 794 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 795 ^1da177e4c3f41 Linus Torvalds 2005-04-16 796 static void mld_clear_delrec(struct inet6_dev *idev) ^1da177e4c3f41 Linus Torvalds 2005-04-16 797 { ^1da177e4c3f41 Linus Torvalds 2005-04-16 798 struct ifmcaddr6 *pmc, *nextpmc; ^1da177e4c3f41 Linus Torvalds 2005-04-16 799 ^1da177e4c3f41 Linus Torvalds 2005-04-16 800 pmc = idev->mc_tomb; ^1da177e4c3f41 Linus Torvalds 2005-04-16 801 idev->mc_tomb = NULL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 802 ^1da177e4c3f41 Linus Torvalds 2005-04-16 803 for (; pmc; pmc = nextpmc) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 @804 nextpmc = pmc->next; ^1da177e4c3f41 Linus Torvalds 2005-04-16 805 ip6_mc_clear_src(pmc); ^1da177e4c3f41 Linus Torvalds 2005-04-16 806 in6_dev_put(pmc->idev); ^1da177e4c3f41 Linus Torvalds 2005-04-16 807 kfree(pmc); ^1da177e4c3f41 Linus Torvalds 2005-04-16 808 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 809 ^1da177e4c3f41 Linus Torvalds 2005-04-16 810 /* clear dead sources, too */ 05d3b96bdcaec5 Taehee Yoo 2021-02-13 811 for_each_mc_rtnl(idev, pmc) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 812 struct ip6_sf_list *psf, *psf_next; ^1da177e4c3f41 Linus Torvalds 2005-04-16 813 ^1da177e4c3f41 Linus Torvalds 2005-04-16 814 psf = pmc->mca_tomb; ^1da177e4c3f41 Linus Torvalds 2005-04-16 815 pmc->mca_tomb = NULL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 816 for (; psf; psf = psf_next) { 50d689e601cc17 Taehee Yoo 2021-02-13 817 psf_next = rtnl_dereference(psf->sf_next); 50d689e601cc17 Taehee Yoo 2021-02-13 818 kfree_rcu(psf, rcu); ^1da177e4c3f41 Linus Torvalds 2005-04-16 819 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 820 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 821 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 822 1691c63ea42d6f WANG Cong 2014-09-11 823 static void mca_get(struct ifmcaddr6 *mc) 1691c63ea42d6f WANG Cong 2014-09-11 824 { d3981bc615f652 Reshetova, Elena 2017-07-04 825 refcount_inc(&mc->mca_refcnt); 1691c63ea42d6f WANG Cong 2014-09-11 826 } 1691c63ea42d6f WANG Cong 2014-09-11 827 1691c63ea42d6f WANG Cong 2014-09-11 828 static void ma_put(struct ifmcaddr6 *mc) 1691c63ea42d6f WANG Cong 2014-09-11 829 { d3981bc615f652 Reshetova, Elena 2017-07-04 830 if (refcount_dec_and_test(&mc->mca_refcnt)) { 1691c63ea42d6f WANG Cong 2014-09-11 831 in6_dev_put(mc->idev); 05d3b96bdcaec5 Taehee Yoo 2021-02-13 832 kfree_rcu(mc, rcu); 1691c63ea42d6f WANG Cong 2014-09-11 833 } 1691c63ea42d6f WANG Cong 2014-09-11 834 } 1691c63ea42d6f WANG Cong 2014-09-11 835 1691c63ea42d6f WANG Cong 2014-09-11 836 static struct ifmcaddr6 *mca_alloc(struct inet6_dev *idev, c7ea20c9da5b94 Hangbin Liu 2018-07-10 837 const struct in6_addr *addr, c7ea20c9da5b94 Hangbin Liu 2018-07-10 838 unsigned int mode) 1691c63ea42d6f WANG Cong 2014-09-11 839 { 1691c63ea42d6f WANG Cong 2014-09-11 840 struct ifmcaddr6 *mc; 1691c63ea42d6f WANG Cong 2014-09-11 841 05d3b96bdcaec5 Taehee Yoo 2021-02-13 842 mc = kzalloc(sizeof(*mc), GFP_KERNEL); 63159f29be1df7 Ian Morris 2015-03-29 843 if (!mc) 1691c63ea42d6f WANG Cong 2014-09-11 844 return NULL; 1691c63ea42d6f WANG Cong 2014-09-11 845 da82b573563d55 Taehee Yoo 2021-02-13 846 INIT_DELAYED_WORK(&mc->mca_work, mld_mca_work); 1691c63ea42d6f WANG Cong 2014-09-11 847 1691c63ea42d6f WANG Cong 2014-09-11 848 mc->mca_addr = *addr; 1691c63ea42d6f WANG Cong 2014-09-11 849 mc->idev = idev; /* reference taken by caller */ 1691c63ea42d6f WANG Cong 2014-09-11 850 mc->mca_users = 1; 1691c63ea42d6f WANG Cong 2014-09-11 851 /* mca_stamp should be updated upon changes */ 1691c63ea42d6f WANG Cong 2014-09-11 852 mc->mca_cstamp = mc->mca_tstamp = jiffies; d3981bc615f652 Reshetova, Elena 2017-07-04 853 refcount_set(&mc->mca_refcnt, 1); 1691c63ea42d6f WANG Cong 2014-09-11 854 spin_lock_init(&mc->mca_lock); 1691c63ea42d6f WANG Cong 2014-09-11 855 c7ea20c9da5b94 Hangbin Liu 2018-07-10 856 mc->mca_sfmode = mode; c7ea20c9da5b94 Hangbin Liu 2018-07-10 857 mc->mca_sfcount[mode] = 1; 1691c63ea42d6f WANG Cong 2014-09-11 858 1691c63ea42d6f WANG Cong 2014-09-11 859 if (ipv6_addr_is_ll_all_nodes(&mc->mca_addr) || 1691c63ea42d6f WANG Cong 2014-09-11 860 IPV6_ADDR_MC_SCOPE(&mc->mca_addr) < IPV6_ADDR_SCOPE_LINKLOCAL) a3403c9c2ef72a Taehee Yoo 2021-02-13 861 mc->mca_noreport = true; 1691c63ea42d6f WANG Cong 2014-09-11 862 1691c63ea42d6f WANG Cong 2014-09-11 863 return mc; 1691c63ea42d6f WANG Cong 2014-09-11 864 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 865 ^1da177e4c3f41 Linus Torvalds 2005-04-16 866 /* ^1da177e4c3f41 Linus Torvalds 2005-04-16 867 * device multicast group inc (add if not found) ^1da177e4c3f41 Linus Torvalds 2005-04-16 868 */ c7ea20c9da5b94 Hangbin Liu 2018-07-10 869 static int __ipv6_dev_mc_inc(struct net_device *dev, c7ea20c9da5b94 Hangbin Liu 2018-07-10 870 const struct in6_addr *addr, unsigned int mode) ^1da177e4c3f41 Linus Torvalds 2005-04-16 871 { ^1da177e4c3f41 Linus Torvalds 2005-04-16 872 struct ifmcaddr6 *mc; ^1da177e4c3f41 Linus Torvalds 2005-04-16 873 struct inet6_dev *idev; ^1da177e4c3f41 Linus Torvalds 2005-04-16 874 a9ed4a2986e130 Sabrina Dubroca 2014-09-02 875 ASSERT_RTNL(); a9ed4a2986e130 Sabrina Dubroca 2014-09-02 876 96b52e61be1ad4 Eric Dumazet 2010-06-07 877 /* we need to take a reference on idev */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 878 idev = in6_dev_get(dev); ^1da177e4c3f41 Linus Torvalds 2005-04-16 879 63159f29be1df7 Ian Morris 2015-03-29 880 if (!idev) ^1da177e4c3f41 Linus Torvalds 2005-04-16 881 return -EINVAL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 882 ^1da177e4c3f41 Linus Torvalds 2005-04-16 883 if (idev->dead) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 884 in6_dev_put(idev); ^1da177e4c3f41 Linus Torvalds 2005-04-16 885 return -ENODEV; ^1da177e4c3f41 Linus Torvalds 2005-04-16 886 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 887 05d3b96bdcaec5 Taehee Yoo 2021-02-13 888 for_each_mc_rtnl(idev, mc) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 889 if (ipv6_addr_equal(&mc->mca_addr, addr)) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 890 mc->mca_users++; c7ea20c9da5b94 Hangbin Liu 2018-07-10 891 ip6_mc_add_src(idev, &mc->mca_addr, mode, 0, NULL, 0); ^1da177e4c3f41 Linus Torvalds 2005-04-16 892 in6_dev_put(idev); ^1da177e4c3f41 Linus Torvalds 2005-04-16 893 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 894 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 895 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 896 c7ea20c9da5b94 Hangbin Liu 2018-07-10 897 mc = mca_alloc(idev, addr, mode); 1691c63ea42d6f WANG Cong 2014-09-11 898 if (!mc) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 899 in6_dev_put(idev); ^1da177e4c3f41 Linus Torvalds 2005-04-16 900 return -ENOMEM; ^1da177e4c3f41 Linus Torvalds 2005-04-16 901 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 902 05d3b96bdcaec5 Taehee Yoo 2021-02-13 903 rcu_assign_pointer(mc->next, idev->mc_list); 05d3b96bdcaec5 Taehee Yoo 2021-02-13 904 rcu_assign_pointer(idev->mc_list, mc); 1691c63ea42d6f WANG Cong 2014-09-11 905 1691c63ea42d6f WANG Cong 2014-09-11 906 mca_get(mc); ^1da177e4c3f41 Linus Torvalds 2005-04-16 907 1666d49e1d416f Hangbin Liu 2017-01-12 908 mld_del_delrec(idev, mc); 0ae0d60a379c11 Hangbin Liu 2018-07-20 909 igmp6_group_added(mc); ^1da177e4c3f41 Linus Torvalds 2005-04-16 910 ma_put(mc); ^1da177e4c3f41 Linus Torvalds 2005-04-16 911 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 912 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 913 c7ea20c9da5b94 Hangbin Liu 2018-07-10 914 int ipv6_dev_mc_inc(struct net_device *dev, const struct in6_addr *addr) c7ea20c9da5b94 Hangbin Liu 2018-07-10 915 { c7ea20c9da5b94 Hangbin Liu 2018-07-10 916 return __ipv6_dev_mc_inc(dev, addr, MCAST_EXCLUDE); c7ea20c9da5b94 Hangbin Liu 2018-07-10 917 } 4effd28c124530 Linus Lüssing 2019-01-21 918 EXPORT_SYMBOL(ipv6_dev_mc_inc); c7ea20c9da5b94 Hangbin Liu 2018-07-10 919 ^1da177e4c3f41 Linus Torvalds 2005-04-16 920 /* ^1da177e4c3f41 Linus Torvalds 2005-04-16 921 * device multicast group del ^1da177e4c3f41 Linus Torvalds 2005-04-16 922 */ 9acd9f3ae92d0d YOSHIFUJI Hideaki 2008-04-10 923 int __ipv6_dev_mc_dec(struct inet6_dev *idev, const struct in6_addr *addr) ^1da177e4c3f41 Linus Torvalds 2005-04-16 924 { 05d3b96bdcaec5 Taehee Yoo 2021-02-13 925 struct ifmcaddr6 __rcu **map; 05d3b96bdcaec5 Taehee Yoo 2021-02-13 926 struct ifmcaddr6 *ma; ^1da177e4c3f41 Linus Torvalds 2005-04-16 927 a9ed4a2986e130 Sabrina Dubroca 2014-09-02 928 ASSERT_RTNL(); a9ed4a2986e130 Sabrina Dubroca 2014-09-02 929 05d3b96bdcaec5 Taehee Yoo 2021-02-13 930 for (map = &idev->mc_list; 05d3b96bdcaec5 Taehee Yoo 2021-02-13 931 (ma = rtnl_dereference(*map)) != NULL; 05d3b96bdcaec5 Taehee Yoo 2021-02-13 932 map = &ma->next) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 933 if (ipv6_addr_equal(&ma->mca_addr, addr)) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 934 if (--ma->mca_users == 0) { 05d3b96bdcaec5 Taehee Yoo 2021-02-13 @935 *map = rtnl_dereference(ma->next); ^1da177e4c3f41 Linus Torvalds 2005-04-16 936 ^1da177e4c3f41 Linus Torvalds 2005-04-16 937 igmp6_group_dropped(ma); 1666d49e1d416f Hangbin Liu 2017-01-12 938 ip6_mc_clear_src(ma); ^1da177e4c3f41 Linus Torvalds 2005-04-16 939 ^1da177e4c3f41 Linus Torvalds 2005-04-16 940 ma_put(ma); ^1da177e4c3f41 Linus Torvalds 2005-04-16 941 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 942 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 943 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 944 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 945 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 946 ^1da177e4c3f41 Linus Torvalds 2005-04-16 947 return -ENOENT; ^1da177e4c3f41 Linus Torvalds 2005-04-16 948 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 949 --- 0-DAY CI Kernel Test 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.config.gz
Description: application/gzip
