From: kernel test robot <lkp@intel.com>
To: Yonghong Song <yonghong.song@linux.dev>, bpf@vger.kernel.org
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
Alexei Starovoitov <ast@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Jakub Sitnicki <jakub@cloudflare.com>,
John Fastabend <john.fastabend@gmail.com>,
kernel-team@fb.com, Martin KaFai Lau <martin.lau@kernel.org>
Subject: Re: [PATCH bpf-next v2 1/6] bpf: Add bpf_link support for sk_msg and sk_skb progs
Date: Fri, 22 Mar 2024 04:33:25 +0800 [thread overview]
Message-ID: <202403220430.affB6tuK-lkp@intel.com> (raw)
In-Reply-To: <20240319175406.2940628-1-yonghong.song@linux.dev>
Hi Yonghong,
kernel test robot noticed the following build errors:
[auto build test ERROR on bpf-next/master]
url: https://github.com/intel-lab-lkp/linux/commits/Yonghong-Song/bpf-Add-bpf_link-support-for-sk_msg-and-sk_skb-progs/20240320-015917
base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
patch link: https://lore.kernel.org/r/20240319175406.2940628-1-yonghong.song%40linux.dev
patch subject: [PATCH bpf-next v2 1/6] bpf: Add bpf_link support for sk_msg and sk_skb progs
config: x86_64-randconfig-011-20240321 (https://download.01.org/0day-ci/archive/20240322/202403220430.affB6tuK-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240322/202403220430.affB6tuK-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202403220430.affB6tuK-lkp@intel.com/
All errors (new ones prefixed by >>):
>> net/core/skmsg.c:1279:9: error: call to undeclared function 'sock_map_prog_update'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
1279 | (void)sock_map_prog_update(sk_link->map, NULL, link->prog,
| ^
>> net/core/skmsg.c:1281:3: error: call to undeclared function 'bpf_map_put_with_uref'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
1281 | bpf_map_put_with_uref(sk_link->map);
| ^
net/core/skmsg.c:1316:8: error: call to undeclared function 'sock_map_prog_update'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
1316 | ret = sock_map_prog_update(sk_link->map, new_prog, old_prog,
| ^
>> net/core/skmsg.c:1383:8: error: call to undeclared function 'bpf_map_get_with_uref'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
1383 | map = bpf_map_get_with_uref(attr->link_create.target_fd);
| ^
>> net/core/skmsg.c:1383:6: error: incompatible integer to pointer conversion assigning to 'struct bpf_map *' from 'int' [-Wint-conversion]
1383 | map = bpf_map_get_with_uref(attr->link_create.target_fd);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/core/skmsg.c:1409:8: error: call to undeclared function 'sock_map_prog_update'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
1409 | ret = sock_map_prog_update(map, prog, NULL, attach_type);
| ^
net/core/skmsg.c:1420:2: error: call to undeclared function 'bpf_map_put_with_uref'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
1420 | bpf_map_put_with_uref(map);
| ^
net/core/skmsg.c:1371:5: warning: no previous prototype for function 'bpf_sk_msg_skb_link_create' [-Wmissing-prototypes]
1371 | int bpf_sk_msg_skb_link_create(const union bpf_attr *attr, struct bpf_prog *prog)
| ^
net/core/skmsg.c:1371:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
1371 | int bpf_sk_msg_skb_link_create(const union bpf_attr *attr, struct bpf_prog *prog)
| ^
| static
1 warning and 7 errors generated.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for DRM_I915_DEBUG_GEM
Depends on [n]: HAS_IOMEM [=y] && DRM_I915 [=y] && EXPERT [=y] && DRM_I915_WERROR [=n]
Selected by [y]:
- DRM_I915_DEBUG [=y] && HAS_IOMEM [=y] && DRM_I915 [=y] && EXPERT [=y] && !COMPILE_TEST [=n]
vim +/sock_map_prog_update +1279 net/core/skmsg.c
1272
1273 static void bpf_sk_msg_skb_link_release(struct bpf_link *link)
1274 {
1275 struct bpf_sk_msg_skb_link *sk_link = bpf_sk_msg_skb_link(link);
1276
1277 mutex_lock(&link_mutex);
1278 if (sk_link->map) {
> 1279 (void)sock_map_prog_update(sk_link->map, NULL, link->prog,
1280 sk_link->attach_type);
> 1281 bpf_map_put_with_uref(sk_link->map);
1282 sk_link->map = NULL;
1283 }
1284 mutex_unlock(&link_mutex);
1285 }
1286
1287 static int bpf_sk_msg_skb_link_detach(struct bpf_link *link)
1288 {
1289 bpf_sk_msg_skb_link_release(link);
1290 return 0;
1291 }
1292
1293 static void bpf_sk_msg_skb_link_dealloc(struct bpf_link *link)
1294 {
1295 kfree(bpf_sk_msg_skb_link(link));
1296 }
1297
1298 static int bpf_sk_msg_skb_link_update_prog(struct bpf_link *link,
1299 struct bpf_prog *new_prog,
1300 struct bpf_prog *old_prog)
1301 {
1302 const struct bpf_sk_msg_skb_link *sk_link = bpf_sk_msg_skb_link(link);
1303 int ret = 0;
1304
1305 mutex_lock(&link_mutex);
1306 if (old_prog && link->prog != old_prog) {
1307 ret = -EPERM;
1308 goto out;
1309 }
1310
1311 if (link->prog->type != new_prog->type) {
1312 ret = -EINVAL;
1313 goto out;
1314 }
1315
1316 ret = sock_map_prog_update(sk_link->map, new_prog, old_prog,
1317 sk_link->attach_type);
1318 if (!ret)
1319 bpf_prog_inc(new_prog);
1320
1321 out:
1322 mutex_unlock(&link_mutex);
1323 return ret;
1324 }
1325
1326 static int bpf_sk_msg_skb_link_fill_info(const struct bpf_link *link,
1327 struct bpf_link_info *info)
1328 {
1329 const struct bpf_sk_msg_skb_link *sk_link = bpf_sk_msg_skb_link(link);
1330 u32 map_id = 0;
1331
1332 mutex_lock(&link_mutex);
1333 if (sk_link->map)
1334 map_id = sk_link->map->id;
1335 mutex_unlock(&link_mutex);
1336
1337 if (link->type == BPF_LINK_TYPE_SK_MSG) {
1338 info->skmsg.map_id = map_id;
1339 info->skmsg.attach_type = sk_link->attach_type;
1340 } else {
1341 info->skskb.map_id = map_id;
1342 info->skskb.attach_type = sk_link->attach_type;
1343 }
1344 return 0;
1345 }
1346
1347 static void bpf_sk_msg_skb_link_show_fdinfo(const struct bpf_link *link,
1348 struct seq_file *seq)
1349 {
1350 const struct bpf_sk_msg_skb_link *sk_link = bpf_sk_msg_skb_link(link);
1351 u32 map_id = 0;
1352
1353 mutex_lock(&link_mutex);
1354 if (sk_link->map)
1355 map_id = sk_link->map->id;
1356 mutex_unlock(&link_mutex);
1357
1358 seq_printf(seq, "map_id:\t%u\n", map_id);
1359 seq_printf(seq, "attach_type:\t%u (...)\n", sk_link->attach_type);
1360 }
1361
1362 static const struct bpf_link_ops bpf_sk_msg_skb_link_ops = {
1363 .release = bpf_sk_msg_skb_link_release,
1364 .dealloc = bpf_sk_msg_skb_link_dealloc,
1365 .detach = bpf_sk_msg_skb_link_detach,
1366 .update_prog = bpf_sk_msg_skb_link_update_prog,
1367 .fill_link_info = bpf_sk_msg_skb_link_fill_info,
1368 .show_fdinfo = bpf_sk_msg_skb_link_show_fdinfo,
1369 };
1370
1371 int bpf_sk_msg_skb_link_create(const union bpf_attr *attr, struct bpf_prog *prog)
1372 {
1373 struct bpf_link_primer link_primer;
1374 struct bpf_sk_msg_skb_link *sk_link;
1375 enum bpf_attach_type attach_type;
1376 enum bpf_link_type link_type;
1377 struct bpf_map *map;
1378 int ret;
1379
1380 if (attr->link_create.flags)
1381 return -EINVAL;
1382
> 1383 map = bpf_map_get_with_uref(attr->link_create.target_fd);
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
prev parent reply other threads:[~2024-03-21 20:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20240319175406.2940628-1-yonghong.song@linux.dev>
2024-03-21 8:02 ` [PATCH bpf-next v2 1/6] bpf: Add bpf_link support for sk_msg and sk_skb progs kernel test robot
2024-03-21 20:33 ` kernel test robot [this message]
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