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   1 From: Pablo Neira Ayuso <pablo@netfilter.org>
   2 Date: Tue, 9 Jan 2018 02:48:47 +0100
   3 Subject: [PATCH] netfilter: nf_tables: get rid of struct nft_af_info
   4  abstraction
   5
   6 Remove the infrastructure to register/unregister nft_af_info structure,
   7 this structure stores no useful information anymore.
   8
   9 Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
  10 ---
  11
  12 --- a/include/net/netfilter/nf_tables.h
  13 +++ b/include/net/netfilter/nf_tables.h
  14 @@ -950,28 +950,12 @@ struct nft_table {
  15         struct list_head                flowtables;
  16         u64                             hgenerator;
  17         u32                             use;
  18 -       u16                             flags:14,
  19 +       u16                             family:6,
  20 +                                       flags:8,
  21                                         genmask:2;
  22 -       struct nft_af_info              *afi;
  23         char                            *name;
  24  };
  25
  26 -/**
  27 - *     struct nft_af_info - nf_tables address family info
  28 - *
  29 - *     @list: used internally
  30 - *     @family: address family
  31 - *     @owner: module owner
  32 - */
  33 -struct nft_af_info {
  34 -       struct list_head                list;
  35 -       int                             family;
  36 -       struct module                   *owner;
  37 -};
  38 -
  39 -int nft_register_afinfo(struct nft_af_info *);
  40 -void nft_unregister_afinfo(struct nft_af_info *);
  41 -
  42  int nft_register_chain_type(const struct nf_chain_type *);
  43  void nft_unregister_chain_type(const struct nf_chain_type *);
  44
  45 @@ -1139,9 +1123,6 @@ void nft_trace_notify(struct nft_tracein
  46  #define nft_dereference(p)                                     \
  47         nfnl_dereference(p, NFNL_SUBSYS_NFTABLES)
  48
  49 -#define MODULE_ALIAS_NFT_FAMILY(family)        \
  50 -       MODULE_ALIAS("nft-afinfo-" __stringify(family))
  51 -
  52  #define MODULE_ALIAS_NFT_CHAIN(family, name) \
  53         MODULE_ALIAS("nft-chain-" __stringify(family) "-" name)
  54
  55 --- a/net/bridge/netfilter/nf_tables_bridge.c
  56 +++ b/net/bridge/netfilter/nf_tables_bridge.c
  57 @@ -42,11 +42,6 @@ nft_do_chain_bridge(void *priv,
  58         return nft_do_chain(&pkt, priv);
  59  }
  60
  61 -static struct nft_af_info nft_af_bridge __read_mostly = {
  62 -       .family         = NFPROTO_BRIDGE,
  63 -       .owner          = THIS_MODULE,
  64 -};
  65 -
  66  static const struct nf_chain_type filter_bridge = {
  67         .name           = "filter",
  68         .type           = NFT_CHAIN_T_DEFAULT,
  69 @@ -68,28 +63,12 @@ static const struct nf_chain_type filter
  70
  71  static int __init nf_tables_bridge_init(void)
  72  {
  73 -       int ret;
  74 -
  75 -       ret = nft_register_afinfo(&nft_af_bridge);
  76 -       if (ret < 0)
  77 -               return ret;
  78 -
  79 -       ret = nft_register_chain_type(&filter_bridge);
  80 -       if (ret < 0)
  81 -               goto err_register_chain;
  82 -
  83 -       return ret;
  84 -
  85 -err_register_chain:
  86 -       nft_unregister_chain_type(&filter_bridge);
  87 -
  88 -       return ret;
  89 +       return nft_register_chain_type(&filter_bridge);
  90  }
  91
  92  static void __exit nf_tables_bridge_exit(void)
  93  {
  94         nft_unregister_chain_type(&filter_bridge);
  95 -       nft_unregister_afinfo(&nft_af_bridge);
  96  }
  97
  98  module_init(nf_tables_bridge_init);
  99 @@ -97,4 +76,4 @@ module_exit(nf_tables_bridge_exit);
 100
 101  MODULE_LICENSE("GPL");
 102  MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
 103 -MODULE_ALIAS_NFT_FAMILY(AF_BRIDGE);
 104 +MODULE_ALIAS_NFT_CHAIN(AF_BRIDGE, "filter");
 105 --- a/net/ipv4/netfilter/nf_tables_arp.c
 106 +++ b/net/ipv4/netfilter/nf_tables_arp.c
 107 @@ -27,11 +27,6 @@ nft_do_chain_arp(void *priv,
 108         return nft_do_chain(&pkt, priv);
 109  }
 110
 111 -static struct nft_af_info nft_af_arp __read_mostly = {
 112 -       .family         = NFPROTO_ARP,
 113 -       .owner          = THIS_MODULE,
 114 -};
 115 -
 116  static const struct nf_chain_type filter_arp = {
 117         .name           = "filter",
 118         .type           = NFT_CHAIN_T_DEFAULT,
 119 @@ -47,28 +42,12 @@ static const struct nf_chain_type filter
 120
 121  static int __init nf_tables_arp_init(void)
 122  {
 123 -       int ret;
 124 -
 125 -       ret = nft_register_afinfo(&nft_af_arp);
 126 -       if (ret < 0)
 127 -               return ret;
 128 -
 129 -       ret = nft_register_chain_type(&filter_arp);
 130 -       if (ret < 0)
 131 -               goto err_register_chain;
 132 -
 133 -       return 0;
 134 -
 135 -err_register_chain:
 136 -       nft_unregister_chain_type(&filter_arp);
 137 -
 138 -       return ret;
 139 +       return nft_register_chain_type(&filter_arp);
 140  }
 141
 142  static void __exit nf_tables_arp_exit(void)
 143  {
 144         nft_unregister_chain_type(&filter_arp);
 145 -       nft_unregister_afinfo(&nft_af_arp);
 146  }
 147
 148  module_init(nf_tables_arp_init);
 149 @@ -76,4 +55,4 @@ module_exit(nf_tables_arp_exit);
 150
 151  MODULE_LICENSE("GPL");
 152  MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
 153 -MODULE_ALIAS_NFT_FAMILY(3); /* NFPROTO_ARP */
 154 +MODULE_ALIAS_NFT_CHAIN(3, "filter"); /* NFPROTO_ARP */
 155 --- a/net/ipv4/netfilter/nf_tables_ipv4.c
 156 +++ b/net/ipv4/netfilter/nf_tables_ipv4.c
 157 @@ -30,11 +30,6 @@ static unsigned int nft_do_chain_ipv4(vo
 158         return nft_do_chain(&pkt, priv);
 159  }
 160
 161 -static struct nft_af_info nft_af_ipv4 __read_mostly = {
 162 -       .family         = NFPROTO_IPV4,
 163 -       .owner          = THIS_MODULE,
 164 -};
 165 -
 166  static const struct nf_chain_type filter_ipv4 = {
 167         .name           = "filter",
 168         .type           = NFT_CHAIN_T_DEFAULT,
 169 @@ -56,27 +51,12 @@ static const struct nf_chain_type filter
 170
 171  static int __init nf_tables_ipv4_init(void)
 172  {
 173 -       int ret;
 174 -
 175 -       ret = nft_register_afinfo(&nft_af_ipv4);
 176 -       if (ret < 0)
 177 -               return ret;
 178 -
 179 -       ret = nft_register_chain_type(&filter_ipv4);
 180 -       if (ret < 0)
 181 -               goto err_register_chain;
 182 -
 183 -       return 0;
 184 -
 185 -err_register_chain:
 186 -       nft_unregister_afinfo(&nft_af_ipv4);
 187 -       return ret;
 188 +       return nft_register_chain_type(&filter_ipv4);
 189  }
 190
 191  static void __exit nf_tables_ipv4_exit(void)
 192  {
 193         nft_unregister_chain_type(&filter_ipv4);
 194 -       nft_unregister_afinfo(&nft_af_ipv4);
 195  }
 196
 197  module_init(nf_tables_ipv4_init);
 198 @@ -84,4 +64,4 @@ module_exit(nf_tables_ipv4_exit);
 199
 200  MODULE_LICENSE("GPL");
 201  MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
 202 -MODULE_ALIAS_NFT_FAMILY(AF_INET);
 203 +MODULE_ALIAS_NFT_CHAIN(AF_INET, "filter");
 204 --- a/net/ipv6/netfilter/nf_tables_ipv6.c
 205 +++ b/net/ipv6/netfilter/nf_tables_ipv6.c
 206 @@ -28,11 +28,6 @@ static unsigned int nft_do_chain_ipv6(vo
 207         return nft_do_chain(&pkt, priv);
 208  }
 209
 210 -static struct nft_af_info nft_af_ipv6 __read_mostly = {
 211 -       .family         = NFPROTO_IPV6,
 212 -       .owner          = THIS_MODULE,
 213 -};
 214 -
 215  static const struct nf_chain_type filter_ipv6 = {
 216         .name           = "filter",
 217         .type           = NFT_CHAIN_T_DEFAULT,
 218 @@ -54,26 +49,11 @@ static const struct nf_chain_type filter
 219
 220  static int __init nf_tables_ipv6_init(void)
 221  {
 222 -       int ret;
 223 -
 224 -       ret = nft_register_afinfo(&nft_af_ipv6);
 225 -       if (ret < 0)
 226 -               return ret;
 227 -
 228 -       ret = nft_register_chain_type(&filter_ipv6);
 229 -       if (ret < 0)
 230 -               goto err_register_chain;
 231 -
 232 -       return 0;
 233 -
 234 -err_register_chain:
 235 -       nft_unregister_afinfo(&nft_af_ipv6);
 236 -       return ret;
 237 +       return nft_register_chain_type(&filter_ipv6);
 238  }
 239
 240  static void __exit nf_tables_ipv6_exit(void)
 241  {
 242 -       nft_unregister_afinfo(&nft_af_ipv6);
 243         nft_unregister_chain_type(&filter_ipv6);
 244  }
 245
 246 @@ -82,4 +62,4 @@ module_exit(nf_tables_ipv6_exit);
 247
 248  MODULE_LICENSE("GPL");
 249  MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
 250 -MODULE_ALIAS_NFT_FAMILY(AF_INET6);
 251 +MODULE_ALIAS_NFT_CHAIN(AF_INET6, "filter");
 252 --- a/net/netfilter/nf_tables_api.c
 253 +++ b/net/netfilter/nf_tables_api.c
 254 @@ -26,71 +26,6 @@
 255  static LIST_HEAD(nf_tables_expressions);
 256  static LIST_HEAD(nf_tables_objects);
 257  static LIST_HEAD(nf_tables_flowtables);
 258 -static LIST_HEAD(nf_tables_af_info);
 259 -
 260 -/**
 261 - *     nft_register_afinfo - register nf_tables address family info
 262 - *
 263 - *     @afi: address family info to register
 264 - *
 265 - *     Register the address family for use with nf_tables. Returns zero on
 266 - *     success or a negative errno code otherwise.
 267 - */
 268 -int nft_register_afinfo(struct nft_af_info *afi)
 269 -{
 270 -       nfnl_lock(NFNL_SUBSYS_NFTABLES);
 271 -       list_add_tail_rcu(&afi->list, &nf_tables_af_info);
 272 -       nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 273 -       return 0;
 274 -}
 275 -EXPORT_SYMBOL_GPL(nft_register_afinfo);
 276 -
 277 -/**
 278 - *     nft_unregister_afinfo - unregister nf_tables address family info
 279 - *
 280 - *     @afi: address family info to unregister
 281 - *
 282 - *     Unregister the address family for use with nf_tables.
 283 - */
 284 -void nft_unregister_afinfo(struct nft_af_info *afi)
 285 -{
 286 -       nfnl_lock(NFNL_SUBSYS_NFTABLES);
 287 -       list_del_rcu(&afi->list);
 288 -       nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 289 -}
 290 -EXPORT_SYMBOL_GPL(nft_unregister_afinfo);
 291 -
 292 -static struct nft_af_info *nft_afinfo_lookup(struct net *net, int family)
 293 -{
 294 -       struct nft_af_info *afi;
 295 -
 296 -       list_for_each_entry(afi, &nf_tables_af_info, list) {
 297 -               if (afi->family == family)
 298 -                       return afi;
 299 -       }
 300 -       return NULL;
 301 -}
 302 -
 303 -static struct nft_af_info *
 304 -nf_tables_afinfo_lookup(struct net *net, int family, bool autoload)
 305 -{
 306 -       struct nft_af_info *afi;
 307 -
 308 -       afi = nft_afinfo_lookup(net, family);
 309 -       if (afi != NULL)
 310 -               return afi;
 311 -#ifdef CONFIG_MODULES
 312 -       if (autoload) {
 313 -               nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 314 -               request_module("nft-afinfo-%u", family);
 315 -               nfnl_lock(NFNL_SUBSYS_NFTABLES);
 316 -               afi = nft_afinfo_lookup(net, family);
 317 -               if (afi != NULL)
 318 -                       return ERR_PTR(-EAGAIN);
 319 -       }
 320 -#endif
 321 -       return ERR_PTR(-EAFNOSUPPORT);
 322 -}
 323
 324  static void nft_ctx_init(struct nft_ctx *ctx,
 325                          struct net *net,
 326 @@ -390,7 +325,7 @@ static struct nft_table *nft_table_looku
 327
 328         list_for_each_entry(table, &net->nft.tables, list) {
 329                 if (!nla_strcmp(nla, table->name) &&
 330 -                   table->afi->family == family &&
 331 +                   table->family == family &&
 332                     nft_active_genmask(table, genmask))
 333                         return table;
 334         }
 335 @@ -531,7 +466,7 @@ static int nf_tables_dump_tables(struct
 336         cb->seq = net->nft.base_seq;
 337
 338         list_for_each_entry_rcu(table, &net->nft.tables, list) {
 339 -               if (family != NFPROTO_UNSPEC && family != table->afi->family)
 340 +               if (family != NFPROTO_UNSPEC && family != table->family)
 341                         continue;
 342
 343                 if (idx < s_idx)
 344 @@ -545,7 +480,7 @@ static int nf_tables_dump_tables(struct
 345                                               NETLINK_CB(cb->skb).portid,
 346                                               cb->nlh->nlmsg_seq,
 347                                               NFT_MSG_NEWTABLE, NLM_F_MULTI,
 348 -                                             table->afi->family, table) < 0)
 349 +                                             table->family, table) < 0)
 350                         goto done;
 351
 352                 nl_dump_check_consistent(cb, nlmsg_hdr(skb));
 353 @@ -565,7 +500,6 @@ static int nf_tables_gettable(struct net
 354  {
 355         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 356         u8 genmask = nft_genmask_cur(net);
 357 -       const struct nft_af_info *afi;
 358         const struct nft_table *table;
 359         struct sk_buff *skb2;
 360         int family = nfmsg->nfgen_family;
 361 @@ -578,11 +512,7 @@ static int nf_tables_gettable(struct net
 362                 return netlink_dump_start(nlsk, skb, nlh, &c);
 363         }
 364
 365 -       afi = nf_tables_afinfo_lookup(net, family, false);
 366 -       if (IS_ERR(afi))
 367 -               return PTR_ERR(afi);
 368 -
 369 -       table = nf_tables_table_lookup(net, nla[NFTA_TABLE_NAME], afi->family,
 370 +       table = nf_tables_table_lookup(net, nla[NFTA_TABLE_NAME], family,
 371                                        genmask);
 372         if (IS_ERR(table))
 373                 return PTR_ERR(table);
 374 @@ -702,19 +632,14 @@ static int nf_tables_newtable(struct net
 375         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 376         u8 genmask = nft_genmask_next(net);
 377         const struct nlattr *name;
 378 -       struct nft_af_info *afi;
 379         struct nft_table *table;
 380         int family = nfmsg->nfgen_family;
 381         u32 flags = 0;
 382         struct nft_ctx ctx;
 383         int err;
 384
 385 -       afi = nf_tables_afinfo_lookup(net, family, true);
 386 -       if (IS_ERR(afi))
 387 -               return PTR_ERR(afi);
 388 -
 389         name = nla[NFTA_TABLE_NAME];
 390 -       table = nf_tables_table_lookup(net, name, afi->family, genmask);
 391 +       table = nf_tables_table_lookup(net, name, family, genmask);
 392         if (IS_ERR(table)) {
 393                 if (PTR_ERR(table) != -ENOENT)
 394                         return PTR_ERR(table);
 395 @@ -724,7 +649,7 @@ static int nf_tables_newtable(struct net
 396                 if (nlh->nlmsg_flags & NLM_F_REPLACE)
 397                         return -EOPNOTSUPP;
 398
 399 -               nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, NULL, nla);
 400 +               nft_ctx_init(&ctx, net, skb, nlh, family, table, NULL, nla);
 401                 return nf_tables_updtable(&ctx);
 402         }
 403
 404 @@ -734,40 +659,34 @@ static int nf_tables_newtable(struct net
 405                         return -EINVAL;
 406         }
 407
 408 -       err = -EAFNOSUPPORT;
 409 -       if (!try_module_get(afi->owner))
 410 -               goto err1;
 411 -
 412         err = -ENOMEM;
 413         table = kzalloc(sizeof(*table), GFP_KERNEL);
 414         if (table == NULL)
 415 -               goto err2;
 416 +               goto err_kzalloc;
 417
 418         table->name = nla_strdup(name, GFP_KERNEL);
 419         if (table->name == NULL)
 420 -               goto err3;
 421 +               goto err_strdup;
 422
 423         INIT_LIST_HEAD(&table->chains);
 424         INIT_LIST_HEAD(&table->sets);
 425         INIT_LIST_HEAD(&table->objects);
 426         INIT_LIST_HEAD(&table->flowtables);
 427 -       table->afi = afi;
 428 +       table->family = family;
 429         table->flags = flags;
 430
 431 -       nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, NULL, nla);
 432 +       nft_ctx_init(&ctx, net, skb, nlh, family, table, NULL, nla);
 433         err = nft_trans_table_add(&ctx, NFT_MSG_NEWTABLE);
 434         if (err < 0)
 435 -               goto err4;
 436 +               goto err_trans;
 437
 438         list_add_tail_rcu(&table->list, &net->nft.tables);
 439         return 0;
 440 -err4:
 441 +err_trans:
 442         kfree(table->name);
 443 -err3:
 444 +err_strdup:
 445         kfree(table);
 446 -err2:
 447 -       module_put(afi->owner);
 448 -err1:
 449 +err_kzalloc:
 450         return err;
 451  }
 452
 453 @@ -838,10 +757,10 @@ static int nft_flush(struct nft_ctx *ctx
 454         int err = 0;
 455
 456         list_for_each_entry_safe(table, nt, &ctx->net->nft.tables, list) {
 457 -               if (family != AF_UNSPEC && table->afi->family != family)
 458 +               if (family != AF_UNSPEC && table->family != family)
 459                         continue;
 460
 461 -               ctx->family = table->afi->family;
 462 +               ctx->family = table->family;
 463
 464                 if (!nft_is_active_next(ctx->net, table))
 465                         continue;
 466 @@ -867,7 +786,6 @@ static int nf_tables_deltable(struct net
 467  {
 468         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 469         u8 genmask = nft_genmask_next(net);
 470 -       struct nft_af_info *afi;
 471         struct nft_table *table;
 472         int family = nfmsg->nfgen_family;
 473         struct nft_ctx ctx;
 474 @@ -876,11 +794,7 @@ static int nf_tables_deltable(struct net
 475         if (family == AF_UNSPEC || nla[NFTA_TABLE_NAME] == NULL)
 476                 return nft_flush(&ctx, family);
 477
 478 -       afi = nf_tables_afinfo_lookup(net, family, false);
 479 -       if (IS_ERR(afi))
 480 -               return PTR_ERR(afi);
 481 -
 482 -       table = nf_tables_table_lookup(net, nla[NFTA_TABLE_NAME], afi->family,
 483 +       table = nf_tables_table_lookup(net, nla[NFTA_TABLE_NAME], family,
 484                                        genmask);
 485         if (IS_ERR(table))
 486                 return PTR_ERR(table);
 487 @@ -889,7 +803,7 @@ static int nf_tables_deltable(struct net
 488             table->use > 0)
 489                 return -EBUSY;
 490
 491 -       ctx.family = afi->family;
 492 +       ctx.family = family;
 493         ctx.table = table;
 494
 495         return nft_flush_table(&ctx);
 496 @@ -901,7 +815,6 @@ static void nf_tables_table_destroy(stru
 497
 498         kfree(ctx->table->name);
 499         kfree(ctx->table);
 500 -       module_put(ctx->table->afi->owner);
 501  }
 502
 503  int nft_register_chain_type(const struct nf_chain_type *ctype)
 504 @@ -1130,7 +1043,7 @@ static int nf_tables_dump_chains(struct
 505         cb->seq = net->nft.base_seq;
 506
 507         list_for_each_entry_rcu(table, &net->nft.tables, list) {
 508 -               if (family != NFPROTO_UNSPEC && family != table->afi->family)
 509 +               if (family != NFPROTO_UNSPEC && family != table->family)
 510                         continue;
 511
 512                 list_for_each_entry_rcu(chain, &table->chains, list) {
 513 @@ -1146,7 +1059,7 @@ static int nf_tables_dump_chains(struct
 514                                                       cb->nlh->nlmsg_seq,
 515                                                       NFT_MSG_NEWCHAIN,
 516                                                       NLM_F_MULTI,
 517 -                                                     table->afi->family, table,
 518 +                                                     table->family, table,
 519                                                       chain) < 0)
 520                                 goto done;
 521
 522 @@ -1168,7 +1081,6 @@ static int nf_tables_getchain(struct net
 523  {
 524         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 525         u8 genmask = nft_genmask_cur(net);
 526 -       const struct nft_af_info *afi;
 527         const struct nft_table *table;
 528         const struct nft_chain *chain;
 529         struct sk_buff *skb2;
 530 @@ -1182,11 +1094,7 @@ static int nf_tables_getchain(struct net
 531                 return netlink_dump_start(nlsk, skb, nlh, &c);
 532         }
 533
 534 -       afi = nf_tables_afinfo_lookup(net, family, false);
 535 -       if (IS_ERR(afi))
 536 -               return PTR_ERR(afi);
 537 -
 538 -       table = nf_tables_table_lookup(net, nla[NFTA_CHAIN_TABLE], afi->family,
 539 +       table = nf_tables_table_lookup(net, nla[NFTA_CHAIN_TABLE], family,
 540                                        genmask);
 541         if (IS_ERR(table))
 542                 return PTR_ERR(table);
 543 @@ -1550,7 +1458,6 @@ static int nf_tables_newchain(struct net
 544         const struct nlattr * uninitialized_var(name);
 545         u8 genmask = nft_genmask_next(net);
 546         int family = nfmsg->nfgen_family;
 547 -       struct nft_af_info *afi;
 548         struct nft_table *table;
 549         struct nft_chain *chain;
 550         u8 policy = NF_ACCEPT;
 551 @@ -1560,11 +1467,7 @@ static int nf_tables_newchain(struct net
 552
 553         create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
 554
 555 -       afi = nf_tables_afinfo_lookup(net, family, true);
 556 -       if (IS_ERR(afi))
 557 -               return PTR_ERR(afi);
 558 -
 559 -       table = nf_tables_table_lookup(net, nla[NFTA_CHAIN_TABLE], afi->family,
 560 +       table = nf_tables_table_lookup(net, nla[NFTA_CHAIN_TABLE], family,
 561                                        genmask);
 562         if (IS_ERR(table))
 563                 return PTR_ERR(table);
 564 @@ -1605,7 +1508,7 @@ static int nf_tables_newchain(struct net
 565                 }
 566         }
 567
 568 -       nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, chain, nla);
 569 +       nft_ctx_init(&ctx, net, skb, nlh, family, table, chain, nla);
 570
 571         if (chain != NULL) {
 572                 if (nlh->nlmsg_flags & NLM_F_EXCL)
 573 @@ -1626,7 +1529,6 @@ static int nf_tables_delchain(struct net
 574  {
 575         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 576         u8 genmask = nft_genmask_next(net);
 577 -       struct nft_af_info *afi;
 578         struct nft_table *table;
 579         struct nft_chain *chain;
 580         struct nft_rule *rule;
 581 @@ -1635,11 +1537,7 @@ static int nf_tables_delchain(struct net
 582         u32 use;
 583         int err;
 584
 585 -       afi = nf_tables_afinfo_lookup(net, family, false);
 586 -       if (IS_ERR(afi))
 587 -               return PTR_ERR(afi);
 588 -
 589 -       table = nf_tables_table_lookup(net, nla[NFTA_CHAIN_TABLE], afi->family,
 590 +       table = nf_tables_table_lookup(net, nla[NFTA_CHAIN_TABLE], family,
 591                                        genmask);
 592         if (IS_ERR(table))
 593                 return PTR_ERR(table);
 594 @@ -1652,7 +1550,7 @@ static int nf_tables_delchain(struct net
 595             chain->use > 0)
 596                 return -EBUSY;
 597
 598 -       nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, chain, nla);
 599 +       nft_ctx_init(&ctx, net, skb, nlh, family, table, chain, nla);
 600
 601         use = chain->use;
 602         list_for_each_entry(rule, &chain->rules, list) {
 603 @@ -2075,7 +1973,7 @@ static int nf_tables_dump_rules(struct s
 604         cb->seq = net->nft.base_seq;
 605
 606         list_for_each_entry_rcu(table, &net->nft.tables, list) {
 607 -               if (family != NFPROTO_UNSPEC && family != table->afi->family)
 608 +               if (family != NFPROTO_UNSPEC && family != table->family)
 609                         continue;
 610
 611                 if (ctx && ctx->table && strcmp(ctx->table, table->name) != 0)
 612 @@ -2098,7 +1996,7 @@ static int nf_tables_dump_rules(struct s
 613                                                               cb->nlh->nlmsg_seq,
 614                                                               NFT_MSG_NEWRULE,
 615                                                               NLM_F_MULTI | NLM_F_APPEND,
 616 -                                                             table->afi->family,
 617 +                                                             table->family,
 618                                                               table, chain, rule) < 0)
 619                                         goto done;
 620
 621 @@ -2134,7 +2032,6 @@ static int nf_tables_getrule(struct net
 622  {
 623         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 624         u8 genmask = nft_genmask_cur(net);
 625 -       const struct nft_af_info *afi;
 626         const struct nft_table *table;
 627         const struct nft_chain *chain;
 628         const struct nft_rule *rule;
 629 @@ -2178,11 +2075,7 @@ static int nf_tables_getrule(struct net
 630                 return netlink_dump_start(nlsk, skb, nlh, &c);
 631         }
 632
 633 -       afi = nf_tables_afinfo_lookup(net, family, false);
 634 -       if (IS_ERR(afi))
 635 -               return PTR_ERR(afi);
 636 -
 637 -       table = nf_tables_table_lookup(net, nla[NFTA_RULE_TABLE], afi->family,
 638 +       table = nf_tables_table_lookup(net, nla[NFTA_RULE_TABLE], family,
 639                                        genmask);
 640         if (IS_ERR(table))
 641                 return PTR_ERR(table);
 642 @@ -2240,7 +2133,7 @@ static int nf_tables_newrule(struct net
 643  {
 644         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 645         u8 genmask = nft_genmask_next(net);
 646 -       struct nft_af_info *afi;
 647 +       int family = nfmsg->nfgen_family;
 648         struct nft_table *table;
 649         struct nft_chain *chain;
 650         struct nft_rule *rule, *old_rule = NULL;
 651 @@ -2256,11 +2149,7 @@ static int nf_tables_newrule(struct net
 652
 653         create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
 654
 655 -       afi = nf_tables_afinfo_lookup(net, nfmsg->nfgen_family, create);
 656 -       if (IS_ERR(afi))
 657 -               return PTR_ERR(afi);
 658 -
 659 -       table = nf_tables_table_lookup(net, nla[NFTA_RULE_TABLE], afi->family,
 660 +       table = nf_tables_table_lookup(net, nla[NFTA_RULE_TABLE], family,
 661                                        genmask);
 662         if (IS_ERR(table))
 663                 return PTR_ERR(table);
 664 @@ -2300,7 +2189,7 @@ static int nf_tables_newrule(struct net
 665                         return PTR_ERR(old_rule);
 666         }
 667
 668 -       nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, chain, nla);
 669 +       nft_ctx_init(&ctx, net, skb, nlh, family, table, chain, nla);
 670
 671         n = 0;
 672         size = 0;
 673 @@ -2429,18 +2318,13 @@ static int nf_tables_delrule(struct net
 674  {
 675         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 676         u8 genmask = nft_genmask_next(net);
 677 -       struct nft_af_info *afi;
 678         struct nft_table *table;
 679         struct nft_chain *chain = NULL;
 680         struct nft_rule *rule;
 681         int family = nfmsg->nfgen_family, err = 0;
 682         struct nft_ctx ctx;
 683
 684 -       afi = nf_tables_afinfo_lookup(net, family, false);
 685 -       if (IS_ERR(afi))
 686 -               return PTR_ERR(afi);
 687 -
 688 -       table = nf_tables_table_lookup(net, nla[NFTA_RULE_TABLE], afi->family,
 689 +       table = nf_tables_table_lookup(net, nla[NFTA_RULE_TABLE], family,
 690                                        genmask);
 691         if (IS_ERR(table))
 692                 return PTR_ERR(table);
 693 @@ -2452,7 +2336,7 @@ static int nf_tables_delrule(struct net
 694                         return PTR_ERR(chain);
 695         }
 696
 697 -       nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, chain, nla);
 698 +       nft_ctx_init(&ctx, net, skb, nlh, family, table, chain, nla);
 699
 700         if (chain) {
 701                 if (nla[NFTA_RULE_HANDLE]) {
 702 @@ -2637,26 +2521,17 @@ static int nft_ctx_init_from_setattr(str
 703                                      u8 genmask)
 704  {
 705         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 706 -       struct nft_af_info *afi = NULL;
 707 +       int family = nfmsg->nfgen_family;
 708         struct nft_table *table = NULL;
 709
 710 -       if (nfmsg->nfgen_family != NFPROTO_UNSPEC) {
 711 -               afi = nf_tables_afinfo_lookup(net, nfmsg->nfgen_family, false);
 712 -               if (IS_ERR(afi))
 713 -                       return PTR_ERR(afi);
 714 -       }
 715 -
 716         if (nla[NFTA_SET_TABLE] != NULL) {
 717 -               if (afi == NULL)
 718 -                       return -EAFNOSUPPORT;
 719 -
 720                 table = nf_tables_table_lookup(net, nla[NFTA_SET_TABLE],
 721 -                                              afi->family, genmask);
 722 +                                              family, genmask);
 723                 if (IS_ERR(table))
 724                         return PTR_ERR(table);
 725         }
 726
 727 -       nft_ctx_init(ctx, net, skb, nlh, afi->family, table, NULL, nla);
 728 +       nft_ctx_init(ctx, net, skb, nlh, family, table, NULL, nla);
 729         return 0;
 730  }
 731
 732 @@ -2887,7 +2762,7 @@ static int nf_tables_dump_sets(struct sk
 733
 734         list_for_each_entry_rcu(table, &net->nft.tables, list) {
 735                 if (ctx->family != NFPROTO_UNSPEC &&
 736 -                   ctx->family != table->afi->family)
 737 +                   ctx->family != table->family)
 738                         continue;
 739
 740                 if (ctx->table && ctx->table != table)
 741 @@ -2908,7 +2783,7 @@ static int nf_tables_dump_sets(struct sk
 742
 743                         ctx_set = *ctx;
 744                         ctx_set.table = table;
 745 -                       ctx_set.family = table->afi->family;
 746 +                       ctx_set.family = table->family;
 747
 748                         if (nf_tables_fill_set(skb, &ctx_set, set,
 749                                                NFT_MSG_NEWSET,
 750 @@ -3020,8 +2895,8 @@ static int nf_tables_newset(struct net *
 751  {
 752         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 753         u8 genmask = nft_genmask_next(net);
 754 +       int family = nfmsg->nfgen_family;
 755         const struct nft_set_ops *ops;
 756 -       struct nft_af_info *afi;
 757         struct nft_table *table;
 758         struct nft_set *set;
 759         struct nft_ctx ctx;
 760 @@ -3128,16 +3003,12 @@ static int nf_tables_newset(struct net *
 761
 762         create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
 763
 764 -       afi = nf_tables_afinfo_lookup(net, nfmsg->nfgen_family, create);
 765 -       if (IS_ERR(afi))
 766 -               return PTR_ERR(afi);
 767 -
 768 -       table = nf_tables_table_lookup(net, nla[NFTA_SET_TABLE], afi->family,
 769 +       table = nf_tables_table_lookup(net, nla[NFTA_SET_TABLE], family,
 770                                        genmask);
 771         if (IS_ERR(table))
 772                 return PTR_ERR(table);
 773
 774 -       nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, NULL, nla);
 775 +       nft_ctx_init(&ctx, net, skb, nlh, family, table, NULL, nla);
 776
 777         set = nf_tables_set_lookup(table, nla[NFTA_SET_NAME], genmask);
 778         if (IS_ERR(set)) {
 779 @@ -3397,19 +3268,15 @@ static int nft_ctx_init_from_elemattr(st
 780                                       u8 genmask)
 781  {
 782         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 783 -       struct nft_af_info *afi;
 784 +       int family = nfmsg->nfgen_family;
 785         struct nft_table *table;
 786
 787 -       afi = nf_tables_afinfo_lookup(net, nfmsg->nfgen_family, false);
 788 -       if (IS_ERR(afi))
 789 -               return PTR_ERR(afi);
 790 -
 791         table = nf_tables_table_lookup(net, nla[NFTA_SET_ELEM_LIST_TABLE],
 792 -                                      afi->family, genmask);
 793 +                                      family, genmask);
 794         if (IS_ERR(table))
 795                 return PTR_ERR(table);
 796
 797 -       nft_ctx_init(ctx, net, skb, nlh, afi->family, table, NULL, nla);
 798 +       nft_ctx_init(ctx, net, skb, nlh, family, table, NULL, nla);
 799         return 0;
 800  }
 801
 802 @@ -3527,7 +3394,7 @@ static int nf_tables_dump_set(struct sk_
 803         rcu_read_lock();
 804         list_for_each_entry_rcu(table, &net->nft.tables, list) {
 805                 if (dump_ctx->ctx.family != NFPROTO_UNSPEC &&
 806 -                   dump_ctx->ctx.family != table->afi->family)
 807 +                   dump_ctx->ctx.family != table->family)
 808                         continue;
 809
 810                 if (table != dump_ctx->ctx.table)
 811 @@ -3557,7 +3424,7 @@ static int nf_tables_dump_set(struct sk_
 812                 goto nla_put_failure;
 813
 814         nfmsg = nlmsg_data(nlh);
 815 -       nfmsg->nfgen_family = table->afi->family;
 816 +       nfmsg->nfgen_family = table->family;
 817         nfmsg->version      = NFNETLINK_V0;
 818         nfmsg->res_id       = htons(net->nft.base_seq & 0xffff);
 819
 820 @@ -4434,7 +4301,6 @@ static int nf_tables_newobj(struct net *
 821         const struct nft_object_type *type;
 822         u8 genmask = nft_genmask_next(net);
 823         int family = nfmsg->nfgen_family;
 824 -       struct nft_af_info *afi;
 825         struct nft_table *table;
 826         struct nft_object *obj;
 827         struct nft_ctx ctx;
 828 @@ -4446,11 +4312,7 @@ static int nf_tables_newobj(struct net *
 829             !nla[NFTA_OBJ_DATA])
 830                 return -EINVAL;
 831
 832 -       afi = nf_tables_afinfo_lookup(net, family, true);
 833 -       if (IS_ERR(afi))
 834 -               return PTR_ERR(afi);
 835 -
 836 -       table = nf_tables_table_lookup(net, nla[NFTA_OBJ_TABLE], afi->family,
 837 +       table = nf_tables_table_lookup(net, nla[NFTA_OBJ_TABLE], family,
 838                                        genmask);
 839         if (IS_ERR(table))
 840                 return PTR_ERR(table);
 841 @@ -4469,7 +4331,7 @@ static int nf_tables_newobj(struct net *
 842                 return 0;
 843         }
 844
 845 -       nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, NULL, nla);
 846 +       nft_ctx_init(&ctx, net, skb, nlh, family, table, NULL, nla);
 847
 848         type = nft_obj_type_get(objtype);
 849         if (IS_ERR(type))
 850 @@ -4561,7 +4423,7 @@ static int nf_tables_dump_obj(struct sk_
 851         cb->seq = net->nft.base_seq;
 852
 853         list_for_each_entry_rcu(table, &net->nft.tables, list) {
 854 -               if (family != NFPROTO_UNSPEC && family != table->afi->family)
 855 +               if (family != NFPROTO_UNSPEC && family != table->family)
 856                         continue;
 857
 858                 list_for_each_entry_rcu(obj, &table->objects, list) {
 859 @@ -4584,7 +4446,7 @@ static int nf_tables_dump_obj(struct sk_
 860                                                     cb->nlh->nlmsg_seq,
 861                                                     NFT_MSG_NEWOBJ,
 862                                                     NLM_F_MULTI | NLM_F_APPEND,
 863 -                                                   table->afi->family, table,
 864 +                                                   table->family, table,
 865                                                     obj, reset) < 0)
 866                                 goto done;
 867
 868 @@ -4642,7 +4504,6 @@ static int nf_tables_getobj(struct net *
 869         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 870         u8 genmask = nft_genmask_cur(net);
 871         int family = nfmsg->nfgen_family;
 872 -       const struct nft_af_info *afi;
 873         const struct nft_table *table;
 874         struct nft_object *obj;
 875         struct sk_buff *skb2;
 876 @@ -4673,11 +4534,7 @@ static int nf_tables_getobj(struct net *
 877             !nla[NFTA_OBJ_TYPE])
 878                 return -EINVAL;
 879
 880 -       afi = nf_tables_afinfo_lookup(net, family, false);
 881 -       if (IS_ERR(afi))
 882 -               return PTR_ERR(afi);
 883 -
 884 -       table = nf_tables_table_lookup(net, nla[NFTA_OBJ_TABLE], afi->family,
 885 +       table = nf_tables_table_lookup(net, nla[NFTA_OBJ_TABLE], family,
 886                                        genmask);
 887         if (IS_ERR(table))
 888                 return PTR_ERR(table);
 889 @@ -4724,7 +4581,6 @@ static int nf_tables_delobj(struct net *
 890         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 891         u8 genmask = nft_genmask_next(net);
 892         int family = nfmsg->nfgen_family;
 893 -       struct nft_af_info *afi;
 894         struct nft_table *table;
 895         struct nft_object *obj;
 896         struct nft_ctx ctx;
 897 @@ -4734,11 +4590,7 @@ static int nf_tables_delobj(struct net *
 898             !nla[NFTA_OBJ_NAME])
 899                 return -EINVAL;
 900
 901 -       afi = nf_tables_afinfo_lookup(net, family, true);
 902 -       if (IS_ERR(afi))
 903 -               return PTR_ERR(afi);
 904 -
 905 -       table = nf_tables_table_lookup(net, nla[NFTA_OBJ_TABLE], afi->family,
 906 +       table = nf_tables_table_lookup(net, nla[NFTA_OBJ_TABLE], family,
 907                                        genmask);
 908         if (IS_ERR(table))
 909                 return PTR_ERR(table);
 910 @@ -4750,7 +4602,7 @@ static int nf_tables_delobj(struct net *
 911         if (obj->use > 0)
 912                 return -EBUSY;
 913
 914 -       nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, NULL, nla);
 915 +       nft_ctx_init(&ctx, net, skb, nlh, family, table, NULL, nla);
 916
 917         return nft_delobj(&ctx, obj);
 918  }
 919 @@ -4935,33 +4787,31 @@ err1:
 920         return err;
 921  }
 922
 923 -static const struct nf_flowtable_type *
 924 -__nft_flowtable_type_get(const struct nft_af_info *afi)
 925 +static const struct nf_flowtable_type *__nft_flowtable_type_get(u8 family)
 926  {
 927         const struct nf_flowtable_type *type;
 928
 929         list_for_each_entry(type, &nf_tables_flowtables, list) {
 930 -               if (afi->family == type->family)
 931 +               if (family == type->family)
 932                         return type;
 933         }
 934         return NULL;
 935  }
 936
 937 -static const struct nf_flowtable_type *
 938 -nft_flowtable_type_get(const struct nft_af_info *afi)
 939 +static const struct nf_flowtable_type *nft_flowtable_type_get(u8 family)
 940  {
 941         const struct nf_flowtable_type *type;
 942
 943 -       type = __nft_flowtable_type_get(afi);
 944 +       type = __nft_flowtable_type_get(family);
 945         if (type != NULL && try_module_get(type->owner))
 946                 return type;
 947
 948  #ifdef CONFIG_MODULES
 949         if (type == NULL) {
 950                 nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 951 -               request_module("nf-flowtable-%u", afi->family);
 952 +               request_module("nf-flowtable-%u", family);
 953                 nfnl_lock(NFNL_SUBSYS_NFTABLES);
 954 -               if (__nft_flowtable_type_get(afi))
 955 +               if (__nft_flowtable_type_get(family))
 956                         return ERR_PTR(-EAGAIN);
 957         }
 958  #endif
 959 @@ -5009,7 +4859,6 @@ static int nf_tables_newflowtable(struct
 960         u8 genmask = nft_genmask_next(net);
 961         int family = nfmsg->nfgen_family;
 962         struct nft_flowtable *flowtable;
 963 -       struct nft_af_info *afi;
 964         struct nft_table *table;
 965         struct nft_ctx ctx;
 966         int err, i, k;
 967 @@ -5019,12 +4868,8 @@ static int nf_tables_newflowtable(struct
 968             !nla[NFTA_FLOWTABLE_HOOK])
 969                 return -EINVAL;
 970
 971 -       afi = nf_tables_afinfo_lookup(net, family, true);
 972 -       if (IS_ERR(afi))
 973 -               return PTR_ERR(afi);
 974 -
 975         table = nf_tables_table_lookup(net, nla[NFTA_FLOWTABLE_TABLE],
 976 -                                      afi->family, genmask);
 977 +                                      family, genmask);
 978         if (IS_ERR(table))
 979                 return PTR_ERR(table);
 980
 981 @@ -5041,7 +4886,7 @@ static int nf_tables_newflowtable(struct
 982                 return 0;
 983         }
 984
 985 -       nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, NULL, nla);
 986 +       nft_ctx_init(&ctx, net, skb, nlh, family, table, NULL, nla);
 987
 988         flowtable = kzalloc(sizeof(*flowtable), GFP_KERNEL);
 989         if (!flowtable)
 990 @@ -5054,7 +4899,7 @@ static int nf_tables_newflowtable(struct
 991                 goto err1;
 992         }
 993
 994 -       type = nft_flowtable_type_get(afi);
 995 +       type = nft_flowtable_type_get(family);
 996         if (IS_ERR(type)) {
 997                 err = PTR_ERR(type);
 998                 goto err2;
 999 @@ -5114,16 +4959,11 @@ static int nf_tables_delflowtable(struct
1000         u8 genmask = nft_genmask_next(net);
1001         int family = nfmsg->nfgen_family;
1002         struct nft_flowtable *flowtable;
1003 -       struct nft_af_info *afi;
1004         struct nft_table *table;
1005         struct nft_ctx ctx;
1006
1007 -       afi = nf_tables_afinfo_lookup(net, family, true);
1008 -       if (IS_ERR(afi))
1009 -               return PTR_ERR(afi);
1010 -
1011         table = nf_tables_table_lookup(net, nla[NFTA_FLOWTABLE_TABLE],
1012 -                                      afi->family, genmask);
1013 +                                      family, genmask);
1014         if (IS_ERR(table))
1015                 return PTR_ERR(table);
1016
1017 @@ -5134,7 +4974,7 @@ static int nf_tables_delflowtable(struct
1018         if (flowtable->use > 0)
1019                 return -EBUSY;
1020
1021 -       nft_ctx_init(&ctx, net, skb, nlh, afi->family, table, NULL, nla);
1022 +       nft_ctx_init(&ctx, net, skb, nlh, family, table, NULL, nla);
1023
1024         return nft_delflowtable(&ctx, flowtable);
1025  }
1026 @@ -5209,7 +5049,7 @@ static int nf_tables_dump_flowtable(stru
1027         cb->seq = net->nft.base_seq;
1028
1029         list_for_each_entry_rcu(table, &net->nft.tables, list) {
1030 -               if (family != NFPROTO_UNSPEC && family != table->afi->family)
1031 +               if (family != NFPROTO_UNSPEC && family != table->family)
1032                         continue;
1033
1034                 list_for_each_entry_rcu(flowtable, &table->flowtables, list) {
1035 @@ -5228,7 +5068,7 @@ static int nf_tables_dump_flowtable(stru
1036                                                           cb->nlh->nlmsg_seq,
1037                                                           NFT_MSG_NEWFLOWTABLE,
1038                                                           NLM_F_MULTI | NLM_F_APPEND,
1039 -                                                         table->afi->family, flowtable) < 0)
1040 +                                                         table->family, flowtable) < 0)
1041                                 goto done;
1042
1043                         nl_dump_check_consistent(cb, nlmsg_hdr(skb));
1044 @@ -5288,7 +5128,6 @@ static int nf_tables_getflowtable(struct
1045         u8 genmask = nft_genmask_cur(net);
1046         int family = nfmsg->nfgen_family;
1047         struct nft_flowtable *flowtable;
1048 -       const struct nft_af_info *afi;
1049         const struct nft_table *table;
1050         struct sk_buff *skb2;
1051         int err;
1052 @@ -5314,12 +5153,8 @@ static int nf_tables_getflowtable(struct
1053         if (!nla[NFTA_FLOWTABLE_NAME])
1054                 return -EINVAL;
1055
1056 -       afi = nf_tables_afinfo_lookup(net, family, false);
1057 -       if (IS_ERR(afi))
1058 -               return PTR_ERR(afi);
1059 -
1060         table = nf_tables_table_lookup(net, nla[NFTA_FLOWTABLE_TABLE],
1061 -                                      afi->family, genmask);
1062 +                                      family, genmask);
1063         if (IS_ERR(table))
1064                 return PTR_ERR(table);
1065
1066 @@ -6483,7 +6318,7 @@ int __nft_release_basechain(struct nft_c
1067  }
1068  EXPORT_SYMBOL_GPL(__nft_release_basechain);
1069
1070 -static void __nft_release_afinfo(struct net *net)
1071 +static void __nft_release_tables(struct net *net)
1072  {
1073         struct nft_flowtable *flowtable, *nf;
1074         struct nft_table *table, *nt;
1075 @@ -6496,7 +6331,7 @@ static void __nft_release_afinfo(struct
1076         };
1077
1078         list_for_each_entry_safe(table, nt, &net->nft.tables, list) {
1079 -               ctx.family = table->afi->family;
1080 +               ctx.family = table->family;
1081
1082                 list_for_each_entry(chain, &table->chains, list)
1083                         nf_tables_unregister_hook(net, table, chain);
1084 @@ -6548,7 +6383,7 @@ static int __net_init nf_tables_init_net
1085
1086  static void __net_exit nf_tables_exit_net(struct net *net)
1087  {
1088 -       __nft_release_afinfo(net);
1089 +       __nft_release_tables(net);
1090         WARN_ON_ONCE(!list_empty(&net->nft.tables));
1091         WARN_ON_ONCE(!list_empty(&net->nft.commit_list));
1092  }
1093 --- a/net/netfilter/nf_tables_inet.c
1094 +++ b/net/netfilter/nf_tables_inet.c
1095 @@ -38,11 +38,6 @@ static unsigned int nft_do_chain_inet(vo
1096         return nft_do_chain(&pkt, priv);
1097  }
1098
1099 -static struct nft_af_info nft_af_inet __read_mostly = {
1100 -       .family         = NFPROTO_INET,
1101 -       .owner          = THIS_MODULE,
1102 -};
1103 -
1104  static const struct nf_chain_type filter_inet = {
1105         .name           = "filter",
1106         .type           = NFT_CHAIN_T_DEFAULT,
1107 @@ -64,26 +59,12 @@ static const struct nf_chain_type filter
1108
1109  static int __init nf_tables_inet_init(void)
1110  {
1111 -       int ret;
1112 -
1113 -       if (nft_register_afinfo(&nft_af_inet) < 0)
1114 -               return ret;
1115 -
1116 -       ret = nft_register_chain_type(&filter_inet);
1117 -       if (ret < 0)
1118 -               goto err_register_chain;
1119 -
1120 -       return ret;
1121 -
1122 -err_register_chain:
1123 -       nft_unregister_afinfo(&nft_af_inet);
1124 -       return ret;
1125 +       return nft_register_chain_type(&filter_inet);
1126  }
1127
1128  static void __exit nf_tables_inet_exit(void)
1129  {
1130         nft_unregister_chain_type(&filter_inet);
1131 -       nft_unregister_afinfo(&nft_af_inet);
1132  }
1133
1134  module_init(nf_tables_inet_init);
1135 @@ -91,4 +72,4 @@ module_exit(nf_tables_inet_exit);
1136
1137  MODULE_LICENSE("GPL");
1138  MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
1139 -MODULE_ALIAS_NFT_FAMILY(1);
1140 +MODULE_ALIAS_NFT_CHAIN(1, "filter");
1141 --- a/net/netfilter/nf_tables_netdev.c
1142 +++ b/net/netfilter/nf_tables_netdev.c
1143 @@ -38,11 +38,6 @@ nft_do_chain_netdev(void *priv, struct s
1144         return nft_do_chain(&pkt, priv);
1145  }
1146
1147 -static struct nft_af_info nft_af_netdev __read_mostly = {
1148 -       .family         = NFPROTO_NETDEV,
1149 -       .owner          = THIS_MODULE,
1150 -};
1151 -
1152  static const struct nf_chain_type nft_filter_chain_netdev = {
1153         .name           = "filter",
1154         .type           = NFT_CHAIN_T_DEFAULT,
1155 @@ -91,10 +86,10 @@ static int nf_tables_netdev_event(struct
1156
1157         nfnl_lock(NFNL_SUBSYS_NFTABLES);
1158         list_for_each_entry(table, &ctx.net->nft.tables, list) {
1159 -               if (table->afi->family != NFPROTO_NETDEV)
1160 +               if (table->family != NFPROTO_NETDEV)
1161                         continue;
1162
1163 -               ctx.family = table->afi->family;
1164 +               ctx.family = table->family;
1165                 ctx.table = table;
1166                 list_for_each_entry_safe(chain, nr, &table->chains, list) {
1167                         if (!nft_is_base_chain(chain))
1168 @@ -117,12 +112,9 @@ static int __init nf_tables_netdev_init(
1169  {
1170         int ret;
1171
1172 -       if (nft_register_afinfo(&nft_af_netdev) < 0)
1173 -               return ret;
1174 -
1175         ret = nft_register_chain_type(&nft_filter_chain_netdev);
1176         if (ret)
1177 -               goto err_register_chain_type;
1178 +               return ret;
1179
1180         ret = register_netdevice_notifier(&nf_tables_netdev_notifier);
1181         if (ret)
1182 @@ -132,8 +124,6 @@ static int __init nf_tables_netdev_init(
1183
1184  err_register_netdevice_notifier:
1185         nft_unregister_chain_type(&nft_filter_chain_netdev);
1186 -err_register_chain_type:
1187 -       nft_unregister_afinfo(&nft_af_netdev);
1188
1189         return ret;
1190  }
1191 @@ -142,7 +132,6 @@ static void __exit nf_tables_netdev_exit
1192  {
1193         unregister_netdevice_notifier(&nf_tables_netdev_notifier);
1194         nft_unregister_chain_type(&nft_filter_chain_netdev);
1195 -       nft_unregister_afinfo(&nft_af_netdev);
1196  }
1197
1198  module_init(nf_tables_netdev_init);
1199 @@ -150,4 +139,4 @@ module_exit(nf_tables_netdev_exit);
1200
1201  MODULE_LICENSE("GPL");
1202  MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");
1203 -MODULE_ALIAS_NFT_FAMILY(5); /* NFPROTO_NETDEV */
1204 +MODULE_ALIAS_NFT_CHAIN(5, "filter"); /* NFPROTO_NETDEV */