[kbuild-all] net/netfilter/nf_tables_api.c:2097:23: sparse: got struct nft_stats __percpu COPYING CREDITS Documentation Kbuild Kconfig LICENSES MAINTAINERS Makefile README arch block certs crypto drivers fs include init ipc kernel lib mm net samples scripts security sound tools usr virt

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: dcde237b9b0eb1d19306e6f48c0a4e058907619f commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces date: 3 weeks ago config: arm64-randconfig-s032-20200708 (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-37-gc9676a3b-dirty git checkout 670d0a4b10704667765f7d18f7592993d02783aa # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) net/netfilter/nf_tables_api.c:1405:25: sparse: sparse: cast between address spaces (__percpu -> __rcu) net/netfilter/nf_tables_api.c:1405:25: sparse: sparse: incompatible types in comparison expression (different address spaces): net/netfilter/nf_tables_api.c:1405:25: sparse: struct nft_stats [noderef] __rcu * net/netfilter/nf_tables_api.c:1405:25: sparse: struct nft_stats [noderef] __percpu * net/netfilter/nf_tables_api.c:1567:31: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected struct nft_stats [noderef] __percpu * @@ got void * @@ net/netfilter/nf_tables_api.c:1570:31: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected struct nft_stats [noderef] __percpu * @@ got void * @@ net/netfilter/nf_tables_api.c:1574:31: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected struct nft_stats [noderef] __percpu * @@ got void * @@ net/netfilter/nf_tables_api.c:1596:17: sparse: sparse: cast between address spaces (__percpu -> __rcu) net/netfilter/nf_tables_api.c:1596:17: sparse: sparse: incompatible types in comparison expression (different address spaces): net/netfilter/nf_tables_api.c:1596:17: sparse: struct nft_stats [noderef] __rcu * net/netfilter/nf_tables_api.c:1596:17: sparse: struct nft_stats [noderef] __percpu * net/netfilter/nf_tables_api.c:1596:17: sparse: sparse: incompatible types in comparison expression (different address spaces): net/netfilter/nf_tables_api.c:1596:17: sparse: struct nft_stats [noderef] __rcu * net/netfilter/nf_tables_api.c:1596:17: sparse: struct nft_stats [noderef] __percpu * net/netfilter/nf_tables_api.c:1639:21: sparse: sparse: cast between address spaces (__percpu -> __rcu) net/netfilter/nf_tables_api.c:1639:21: sparse: sparse: incompatible types in comparison expression (different address spaces): net/netfilter/nf_tables_api.c:1639:21: sparse: struct nft_stats [noderef] __rcu * net/netfilter/nf_tables_api.c:1639:21: sparse: struct nft_stats [noderef] __percpu * net/netfilter/nf_tables_api.c:1947:25: sparse: sparse: cast between address spaces (__percpu -> __rcu) net/netfilter/nf_tables_api.c:1947:25: sparse: sparse: incompatible types in comparison expression (different address spaces): net/netfilter/nf_tables_api.c:1947:25: sparse: struct nft_stats [noderef] __rcu * net/netfilter/nf_tables_api.c:1947:25: sparse: struct nft_stats [noderef] __percpu * net/netfilter/nf_tables_api.c:2097:23: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct nft_stats *stats @@ got struct nft_stats [noderef] __percpu * @@ net/netfilter/nf_tables_api.c:2097:23: sparse: expected struct nft_stats *stats net/netfilter/nf_tables_api.c:2108:38: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct nft_stats [noderef] __percpu *stats @@ got struct nft_stats *stats @@ net/netfilter/nf_tables_api.c:2108:38: sparse: got struct nft_stats *stats net/netfilter/nf_tables_api.c:2144:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __percpu *__pdata @@ got struct nft_stats *stats @@ net/netfilter/nf_tables_api.c:2144:21: sparse: got struct nft_stats *stats include/linux/rcupdate.h:686:9: sparse: sparse: context imbalance in 'nft_netlink_dump_start_rcu' - unexpected unlock -- drivers/rpmsg/qcom_glink_smem.c:93:17: sparse: got void * drivers/rpmsg/qcom_glink_smem.c:96:17: sparse: expected void const volatile [noderef] __iomem * drivers/rpmsg/qcom_glink_smem.c:96:17: sparse: got void *fifo vim +2097 net/netfilter/nf_tables_api.c d54725cd11a57c Pablo Neira Ayuso 2019-10-16 2034 c9626a2cbdb20e Pablo Neira Ayuso 2019-07-09 2035 static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy, c9626a2cbdb20e Pablo Neira Ayuso 2019-07-09 2036 u32 flags) 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2037 { 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2038 const struct nlattr * const *nla = ctx->nla; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2039 struct nft_table *table = ctx->table; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2040 struct nft_chain *chain = ctx->chain; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2041 struct nft_base_chain *basechain; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2042 struct nft_stats *stats = NULL; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2043 struct nft_chain_hook hook; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2044 struct nf_hook_ops *ops; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2045 struct nft_trans *trans; c974a3a36468d1 Pablo Neira Ayuso 2017-12-09 2046 int err; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2047 c9626a2cbdb20e Pablo Neira Ayuso 2019-07-09 2048 if (chain->flags ^ flags) c9626a2cbdb20e Pablo Neira Ayuso 2019-07-09 2049 return -EOPNOTSUPP; c9626a2cbdb20e Pablo Neira Ayuso 2019-07-09 2050 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2051 if (nla[NFTA_CHAIN_HOOK]) { 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2052 if (!nft_is_base_chain(chain)) 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2053 return -EBUSY; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2054 36596dadf54a92 Pablo Neira Ayuso 2018-01-09 2055 err = nft_chain_parse_hook(ctx->net, nla, &hook, ctx->family, 445509eb9b0027 Pablo Neira Ayuso 2018-08-03 2056 false); 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2057 if (err < 0) 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2058 return err; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2059 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2060 basechain = nft_base_chain(chain); 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2061 if (basechain->type != hook.type) { 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2062 nft_chain_release_hook(&hook); 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2063 return -EBUSY; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2064 } 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2065 d54725cd11a57c Pablo Neira Ayuso 2019-10-16 2066 if (ctx->family == NFPROTO_NETDEV) { d54725cd11a57c Pablo Neira Ayuso 2019-10-16 2067 if (!nft_hook_list_equal(&basechain->hook_list, d54725cd11a57c Pablo Neira Ayuso 2019-10-16 2068 &hook.list)) { d54725cd11a57c Pablo Neira Ayuso 2019-10-16 2069 nft_chain_release_hook(&hook); d54725cd11a57c Pablo Neira Ayuso 2019-10-16 2070 return -EBUSY; d54725cd11a57c Pablo Neira Ayuso 2019-10-16 2071 } d54725cd11a57c Pablo Neira Ayuso 2019-10-16 2072 } else { c974a3a36468d1 Pablo Neira Ayuso 2017-12-09 2073 ops = &basechain->ops; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2074 if (ops->hooknum != hook.num || d54725cd11a57c Pablo Neira Ayuso 2019-10-16 2075 ops->priority != hook.priority) { 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2076 nft_chain_release_hook(&hook); 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2077 return -EBUSY; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2078 } d54725cd11a57c Pablo Neira Ayuso 2019-10-16 2079 } 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2080 nft_chain_release_hook(&hook); 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2081 } 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2082 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2083 if (nla[NFTA_CHAIN_HANDLE] && 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2084 nla[NFTA_CHAIN_NAME]) { 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2085 struct nft_chain *chain2; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2086 f102d66b335a41 Florian Westphal 2018-07-11 2087 chain2 = nft_chain_lookup(ctx->net, table, f102d66b335a41 Florian Westphal 2018-07-11 2088 nla[NFTA_CHAIN_NAME], genmask); 0d18779be13766 JingPiao Chen 2017-09-23 2089 if (!IS_ERR(chain2)) 0d18779be13766 JingPiao Chen 2017-09-23 2090 return -EEXIST; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2091 } 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2092 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2093 if (nla[NFTA_CHAIN_COUNTERS]) { 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2094 if (!nft_is_base_chain(chain)) 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2095 return -EOPNOTSUPP; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2096 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 @2097 stats = nft_stats_alloc(nla[NFTA_CHAIN_COUNTERS]); 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2098 if (IS_ERR(stats)) 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2099 return PTR_ERR(stats); 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2100 } 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2101 c6cc94df65c317 Florian Westphal 2018-07-17 2102 err = -ENOMEM; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2103 trans = nft_trans_alloc(ctx, NFT_MSG_NEWCHAIN, 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2104 sizeof(struct nft_trans_chain)); c6cc94df65c317 Florian Westphal 2018-07-17 2105 if (trans == NULL) c6cc94df65c317 Florian Westphal 2018-07-17 2106 goto err; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2107 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 @2108 nft_trans_chain_stats(trans) = stats; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2109 nft_trans_chain_update(trans) = true; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2110 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2111 if (nla[NFTA_CHAIN_POLICY]) 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2112 nft_trans_chain_policy(trans) = policy; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2113 else 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2114 nft_trans_chain_policy(trans) = -1; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2115 c6cc94df65c317 Florian Westphal 2018-07-17 2116 if (nla[NFTA_CHAIN_HANDLE] && c6cc94df65c317 Florian Westphal 2018-07-17 2117 nla[NFTA_CHAIN_NAME]) { c6cc94df65c317 Florian Westphal 2018-07-17 2118 struct nft_trans *tmp; c6cc94df65c317 Florian Westphal 2018-07-17 2119 char *name; c6cc94df65c317 Florian Westphal 2018-07-17 2120 c6cc94df65c317 Florian Westphal 2018-07-17 2121 err = -ENOMEM; c6cc94df65c317 Florian Westphal 2018-07-17 2122 name = nla_strdup(nla[NFTA_CHAIN_NAME], GFP_KERNEL); c6cc94df65c317 Florian Westphal 2018-07-17 2123 if (!name) c6cc94df65c317 Florian Westphal 2018-07-17 2124 goto err; c6cc94df65c317 Florian Westphal 2018-07-17 2125 c6cc94df65c317 Florian Westphal 2018-07-17 2126 err = -EEXIST; c6cc94df65c317 Florian Westphal 2018-07-17 2127 list_for_each_entry(tmp, &ctx->net->nft.commit_list, list) { c6cc94df65c317 Florian Westphal 2018-07-17 2128 if (tmp->msg_type == NFT_MSG_NEWCHAIN && c6cc94df65c317 Florian Westphal 2018-07-17 2129 tmp->ctx.table == table && c6cc94df65c317 Florian Westphal 2018-07-17 2130 nft_trans_chain_update(tmp) && c6cc94df65c317 Florian Westphal 2018-07-17 2131 nft_trans_chain_name(tmp) && c6cc94df65c317 Florian Westphal 2018-07-17 2132 strcmp(name, nft_trans_chain_name(tmp)) == 0) { c6cc94df65c317 Florian Westphal 2018-07-17 2133 kfree(name); c6cc94df65c317 Florian Westphal 2018-07-17 2134 goto err; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2135 } 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2136 } c6cc94df65c317 Florian Westphal 2018-07-17 2137 c6cc94df65c317 Florian Westphal 2018-07-17 2138 nft_trans_chain_name(trans) = name; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2139 } 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2140 list_add_tail(&trans->list, &ctx->net->nft.commit_list); 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2141 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2142 return 0; c6cc94df65c317 Florian Westphal 2018-07-17 2143 err: c6cc94df65c317 Florian Westphal 2018-07-17 @2144 free_percpu(stats); c6cc94df65c317 Florian Westphal 2018-07-17 2145 kfree(trans); c6cc94df65c317 Florian Westphal 2018-07-17 2146 return err; 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2147 } 2c4a488a482d26 Pablo Neira Ayuso 2017-09-03 2148 :::::: The code at line 2097 was first introduced by commit :::::: 2c4a488a482d265df4505671f6051067524c4f76 netfilter: nf_tables: add nf_tables_updchain() :::::: TO: Pablo Neira Ayuso <pablo(a)netfilter.org&gt; :::::: CC: Pablo Neira Ayuso <pablo(a)netfilter.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org