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Message-ID: <202107011610.pdE5S0Xt-lkp@intel.com>
Date: Thu, 1 Jul 2021 16:21:05 +0800
From: kernel test robot <lkp@...el.com>
To: John Fastabend <john.fastabend@...il.com>, ast@...nel.org,
daniel@...earbox.net, andriin@...com
Cc: clang-built-linux@...glegroups.com, kbuild-all@...ts.01.org,
john.fastabend@...il.com, bpf@...r.kernel.org,
netdev@...r.kernel.org
Subject: Re: [PATCH bpf, sockmap 2/2] bpf, sockmap: sk_prot needs inuse_idx
set for proc stats
Hi John,
I love your patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v5.13 next-20210630]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/John-Fastabend/potential-memleak-and-proc-stats-fix/20210701-055546
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 440462198d9c45e48f2d8d9b18c5702d92282f46
config: arm64-randconfig-r026-20210630 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project e7e71e9454ed76c1b3d8140170b5333c28bef1be)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://github.com/0day-ci/linux/commit/82ee893f50c6899cb557f22d0ae9a657b14d183f
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review John-Fastabend/potential-memleak-and-proc-stats-fix/20210701-055546
git checkout 82ee893f50c6899cb557f22d0ae9a657b14d183f
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/ net/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
>> net/core/sock_map.c:296:21: error: no member named 'inuse_idx' in 'struct proto'
idx = sk->sk_prot->inuse_idx;
~~~~~~~~~~~ ^
net/core/sock_map.c:300:15: error: no member named 'inuse_idx' in 'struct proto'
sk->sk_prot->inuse_idx = idx;
~~~~~~~~~~~ ^
2 errors generated.
vim +296 net/core/sock_map.c
215
216 static int sock_map_link(struct bpf_map *map, struct sock *sk)
217 {
218 struct sk_psock_progs *progs = sock_map_progs(map);
219 struct bpf_prog *stream_verdict = NULL;
220 struct bpf_prog *stream_parser = NULL;
221 struct bpf_prog *skb_verdict = NULL;
222 struct bpf_prog *msg_parser = NULL;
223 struct sk_psock *psock;
224 int ret, idx;
225
226 /* Only sockets we can redirect into/from in BPF need to hold
227 * refs to parser/verdict progs and have their sk_data_ready
228 * and sk_write_space callbacks overridden.
229 */
230 if (!sock_map_redirect_allowed(sk))
231 goto no_progs;
232
233 stream_verdict = READ_ONCE(progs->stream_verdict);
234 if (stream_verdict) {
235 stream_verdict = bpf_prog_inc_not_zero(stream_verdict);
236 if (IS_ERR(stream_verdict))
237 return PTR_ERR(stream_verdict);
238 }
239
240 stream_parser = READ_ONCE(progs->stream_parser);
241 if (stream_parser) {
242 stream_parser = bpf_prog_inc_not_zero(stream_parser);
243 if (IS_ERR(stream_parser)) {
244 ret = PTR_ERR(stream_parser);
245 goto out_put_stream_verdict;
246 }
247 }
248
249 msg_parser = READ_ONCE(progs->msg_parser);
250 if (msg_parser) {
251 msg_parser = bpf_prog_inc_not_zero(msg_parser);
252 if (IS_ERR(msg_parser)) {
253 ret = PTR_ERR(msg_parser);
254 goto out_put_stream_parser;
255 }
256 }
257
258 skb_verdict = READ_ONCE(progs->skb_verdict);
259 if (skb_verdict) {
260 skb_verdict = bpf_prog_inc_not_zero(skb_verdict);
261 if (IS_ERR(skb_verdict)) {
262 ret = PTR_ERR(skb_verdict);
263 goto out_put_msg_parser;
264 }
265 }
266
267 no_progs:
268 psock = sock_map_psock_get_checked(sk);
269 if (IS_ERR(psock)) {
270 ret = PTR_ERR(psock);
271 goto out_progs;
272 }
273
274 if (psock) {
275 if ((msg_parser && READ_ONCE(psock->progs.msg_parser)) ||
276 (stream_parser && READ_ONCE(psock->progs.stream_parser)) ||
277 (skb_verdict && READ_ONCE(psock->progs.skb_verdict)) ||
278 (skb_verdict && READ_ONCE(psock->progs.stream_verdict)) ||
279 (stream_verdict && READ_ONCE(psock->progs.skb_verdict)) ||
280 (stream_verdict && READ_ONCE(psock->progs.stream_verdict))) {
281 sk_psock_put(sk, psock);
282 ret = -EBUSY;
283 goto out_progs;
284 }
285 } else {
286 psock = sk_psock_init(sk, map->numa_node);
287 if (IS_ERR(psock)) {
288 ret = PTR_ERR(psock);
289 goto out_progs;
290 }
291 }
292
293 if (msg_parser)
294 psock_set_prog(&psock->progs.msg_parser, msg_parser);
295
> 296 idx = sk->sk_prot->inuse_idx;
297 ret = sock_map_init_proto(sk, psock);
298 if (ret < 0)
299 goto out_drop;
300 sk->sk_prot->inuse_idx = idx;
301
302 write_lock_bh(&sk->sk_callback_lock);
303 if (stream_parser && stream_verdict && !psock->saved_data_ready) {
304 ret = sk_psock_init_strp(sk, psock);
305 if (ret)
306 goto out_unlock_drop;
307 psock_set_prog(&psock->progs.stream_verdict, stream_verdict);
308 psock_set_prog(&psock->progs.stream_parser, stream_parser);
309 sk_psock_start_strp(sk, psock);
310 } else if (!stream_parser && stream_verdict && !psock->saved_data_ready) {
311 psock_set_prog(&psock->progs.stream_verdict, stream_verdict);
312 sk_psock_start_verdict(sk,psock);
313 } else if (!stream_verdict && skb_verdict && !psock->saved_data_ready) {
314 psock_set_prog(&psock->progs.skb_verdict, skb_verdict);
315 sk_psock_start_verdict(sk, psock);
316 }
317 write_unlock_bh(&sk->sk_callback_lock);
318 return 0;
319 out_unlock_drop:
320 write_unlock_bh(&sk->sk_callback_lock);
321 out_drop:
322 sk_psock_put(sk, psock);
323 out_progs:
324 if (skb_verdict)
325 bpf_prog_put(skb_verdict);
326 out_put_msg_parser:
327 if (msg_parser)
328 bpf_prog_put(msg_parser);
329 out_put_stream_parser:
330 if (stream_parser)
331 bpf_prog_put(stream_parser);
332 out_put_stream_verdict:
333 if (stream_verdict)
334 bpf_prog_put(stream_verdict);
335 return ret;
336 }
337
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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