February 2020 - mptcp

[PATCH mptcp] mptcp: re-check dsn before reading from subflow

by Florian Westphal

mptcp_subflow_data_available() is commonly called via ssk->sk_data_ready(), in this case the mptcp socket lock cannot be acquired. Therefore, while we can safely discard subflow data that was already received up to msk->ack_seq, we cannot be sure that 'subflow->data_avail' will still be valid at the time userspace wants to read the data -- a previous read on a different subflow might have carried this data already. In that (unlikely) event, msk->ack_seq will have been updated and will be ahead of the subflow dsn. We can check for this condition and skip/resync to the expected sequence number. Signed-off-by: Florian Westphal <fw(a)strlen.de> --- I could also submit this directly for net-next, but this patch is only needed w. MP_JOIN support. net/mptcp/protocol.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 53a2b0ba2241..8f2fc72fc5ed 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -121,6 +121,27 @@ static void __mptcp_move_skb(struct mptcp_sock *msk, struct sock *ssk, MPTCP_SKB_CB(skb)->offset = offset; } +/* both sockets must be locked */ +static bool mptcp_subflow_dsn_valid(const struct mptcp_sock *msk, + struct sock *ssk) +{ + struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk); + u64 dsn = mptcp_subflow_get_mapped_dsn(subflow); + + /* revalidate data sequence number. + * + * mptcp_subflow_data_available() is usually called + * without msk lock. Its unlikely (but possible) + * that msk->ack_seq has been advanced since the last + * call found in-sequence data. + */ + if (likely(dsn == msk->ack_seq)) + return true; + + subflow->data_avail = 0; + return mptcp_subflow_data_available(ssk); +} + static bool __mptcp_move_skbs_from_subflow(struct mptcp_sock *msk, struct sock *ssk, unsigned int *bytes) @@ -133,6 +154,11 @@ static bool __mptcp_move_skbs_from_subflow(struct mptcp_sock *msk, bool done = false; int rcvbuf; + if (!mptcp_subflow_dsn_valid(msk, ssk)) { + *bytes = 0; + return false; + } + rcvbuf = max(ssk->sk_rcvbuf, sk->sk_rcvbuf); if (rcvbuf > sk->sk_rcvbuf) sk->sk_rcvbuf = rcvbuf; -- 2.24.1

3 weeks, 3 days

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CONTRACT...

by Mr. Qian Yong

1 month, 1 week

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CONTRACT...

by Mr. Qian Yong

1 month, 1 week

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[mptcp:t/mptcp-Implement-path-manager-interface-commands 20/25] net/mptcp/pm.c:31:7: error: no member named 'addr_signal' in 'struct mptcp_sock'

by kbuild test robot

tree: https://github.com/multipath-tcp/mptcp_net-next.git t/mptcp-Implement-path-manager-interface-commands head: a28e79bf6de027fea5d0522a32a686aacf5658a7 commit: 781d512532236fdeb2038457060aa4a470e01f7e [20/25] tgupdate: merge t/mptcp-Implement-path-manager-interface-commands base into t/mptcp-Implement-path-manager-interface-commands config: x86_64-allyesconfig (attached as .config) compiler: clang version 11.0.0 (git://gitmirror/llvm_project 949134e2fefd34a38ed71de90dffe2300e2e1139) reproduce: # FIXME the reproduce steps for clang is not ready yet If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com> Note: the mptcp/t/mptcp-Implement-path-manager-interface-commands HEAD a28e79bf6de027fea5d0522a32a686aacf5658a7 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): >> net/mptcp/pm.c:31:7: error: no member named 'addr_signal' in 'struct mptcp_sock' msk->addr_signal = 1; ~~~ ^ net/mptcp/pm.c:57:7: error: no member named 'addr_signal' in 'struct mptcp_sock' msk->addr_signal = 1; ~~~ ^ 2 errors generated. vim +31 net/mptcp/pm.c 532e0037f0c3af Peter Krystad 2020-02-26 12 532e0037f0c3af Peter Krystad 2020-02-26 13 int mptcp_pm_announce_addr(u32 token, u8 local_id, struct in_addr *addr) 532e0037f0c3af Peter Krystad 2020-02-26 14 { 4b738110d9bfa5 Peter Krystad 2020-02-26 15 struct mptcp_sock *msk = mptcp_token_get_sock(token); 4b738110d9bfa5 Peter Krystad 2020-02-26 16 int err = 0; 4b738110d9bfa5 Peter Krystad 2020-02-26 17 4b738110d9bfa5 Peter Krystad 2020-02-26 18 if (!msk) 4b738110d9bfa5 Peter Krystad 2020-02-26 19 return -EINVAL; 4b738110d9bfa5 Peter Krystad 2020-02-26 20 4b738110d9bfa5 Peter Krystad 2020-02-26 21 if (msk->pm.local_valid) { 4b738110d9bfa5 Peter Krystad 2020-02-26 22 err = -EBADR; 4b738110d9bfa5 Peter Krystad 2020-02-26 23 goto announce_put; 4b738110d9bfa5 Peter Krystad 2020-02-26 24 } 4b738110d9bfa5 Peter Krystad 2020-02-26 25 4b738110d9bfa5 Peter Krystad 2020-02-26 26 pr_debug("msk=%p, local_id=%d", msk, local_id); 4b738110d9bfa5 Peter Krystad 2020-02-26 27 msk->pm.local_valid = 1; 4b738110d9bfa5 Peter Krystad 2020-02-26 28 msk->pm.local_id = local_id; 4b738110d9bfa5 Peter Krystad 2020-02-26 29 msk->pm.local_family = AF_INET; 4b738110d9bfa5 Peter Krystad 2020-02-26 30 msk->pm.local_addr = *addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 @31 msk->addr_signal = 1; 4b738110d9bfa5 Peter Krystad 2020-02-26 32 4b738110d9bfa5 Peter Krystad 2020-02-26 33 announce_put: 4b738110d9bfa5 Peter Krystad 2020-02-26 34 sock_put((struct sock *)msk); 4b738110d9bfa5 Peter Krystad 2020-02-26 35 return err; 532e0037f0c3af Peter Krystad 2020-02-26 36 } 532e0037f0c3af Peter Krystad 2020-02-26 37 :::::: The code at line 31 was first introduced by commit :::::: 4b738110d9bfa5e1a763123e0ef6d0d2f5852782 mptcp: Implement path manager interface commands :::::: TO: Peter Krystad <peter.krystad(a)linux.intel.com> :::::: CC: Matthieu Baerts <matthieu.baerts(a)tessares.net> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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[mptcp:t/mptcp-Implement-path-manager-interface-commands 23/25] net//mptcp/pm.c:46:8: error: implicit declaration of function 'mptcp_subflow_connect'

by kbuild test robot

tree: https://github.com/multipath-tcp/mptcp_net-next.git t/mptcp-Implement-path-manager-interface-commands head: a28e79bf6de027fea5d0522a32a686aacf5658a7 commit: eba1df51e6151d1cc04a559911cf905992581b22 [23/25] tgupdate: merge t/mptcp-Implement-path-manager-interface-commands base into t/mptcp-Implement-path-manager-interface-commands config: mips-randconfig-a001-20200228 (attached as .config) compiler: mipsel-linux-gcc (GCC) 5.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout eba1df51e6151d1cc04a559911cf905992581b22 # save the attached .config to linux build tree GCC_VERSION=5.5.0 make.cross ARCH=mips If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com> Note: the mptcp/t/mptcp-Implement-path-manager-interface-commands HEAD a28e79bf6de027fea5d0522a32a686aacf5658a7 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): net//mptcp/pm.c: In function 'mptcp_pm_announce_addr': net//mptcp/pm.c:18:21: error: 'msk' redeclared as different kind of symbol struct mptcp_sock *msk = mptcp_token_get_sock(token); ^ net//mptcp/pm.c:15:47: note: previous definition of 'msk' was here int mptcp_pm_announce_addr(struct mptcp_sock *msk, ^ net//mptcp/pm.c:18:48: error: 'token' undeclared (first use in this function) struct mptcp_sock *msk = mptcp_token_get_sock(token); ^ net//mptcp/pm.c:18:48: note: each undeclared identifier is reported only once for each function it appears in net//mptcp/pm.c:30:14: error: 'struct mptcp_pm_data' has no member named 'remote_valid' if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^ net//mptcp/pm.c:30:31: error: 'remote_id' undeclared (first use in this function) if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^ net//mptcp/pm.c:30:51: error: 'struct mptcp_pm_data' has no member named 'remote_id' if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^ net//mptcp/pm.c:38:18: error: incompatible types when assigning to type 'struct in_addr' from type 'const struct mptcp_addr_info' local.sin_addr = *addr; ^ net//mptcp/pm.c:42:29: error: 'struct mptcp_pm_data' has no member named 'remote_family' remote.sin_family = msk->pm.remote_family; ^ net//mptcp/pm.c:44:27: error: 'struct mptcp_pm_data' has no member named 'remote_addr' remote.sin_addr = msk->pm.remote_addr; ^ >> net//mptcp/pm.c:46:8: error: implicit declaration of function 'mptcp_subflow_connect' [-Werror=implicit-function-declaration] err = mptcp_subflow_connect(sk, (struct sockaddr *)&local, ^ net//mptcp/pm.c: In function 'mptcp_pm_remove_addr': net//mptcp/pm.c:56:21: error: 'msk' redeclared as different kind of symbol struct mptcp_sock *msk = mptcp_token_get_sock(token); ^ net//mptcp/pm.c:54:45: note: previous definition of 'msk' was here int mptcp_pm_remove_addr(struct mptcp_sock *msk, u8 local_id) ^ net//mptcp/pm.c:56:48: error: 'token' undeclared (first use in this function) struct mptcp_sock *msk = mptcp_token_get_sock(token); ^ net//mptcp/pm.c:68:14: error: 'struct mptcp_pm_data' has no member named 'remote_valid' if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^ net//mptcp/pm.c:68:31: error: 'remote_id' undeclared (first use in this function) if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^ net//mptcp/pm.c:68:51: error: 'struct mptcp_pm_data' has no member named 'remote_id' if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^ net//mptcp/pm.c:75:6: error: 'addr' undeclared (first use in this function) if (addr) ^ net//mptcp/pm.c:80:30: error: 'struct mptcp_pm_data' has no member named 'remote_family' remote.sin6_family = msk->pm.remote_family; ^ net//mptcp/pm.c:82:28: error: 'struct mptcp_pm_data' has no member named 'remote_addr6' remote.sin6_addr = msk->pm.remote_addr6; ^ cc1: some warnings being treated as errors vim +/mptcp_subflow_connect +46 net//mptcp/pm.c 532e0037f0c3af Peter Krystad 2020-02-26 14 cb6c1764eb317d Paolo Abeni 2020-02-24 15 int mptcp_pm_announce_addr(struct mptcp_sock *msk, cb6c1764eb317d Paolo Abeni 2020-02-24 16 const struct mptcp_addr_info *addr) 532e0037f0c3af Peter Krystad 2020-02-26 17 { 4b738110d9bfa5 Peter Krystad 2020-02-26 18 struct mptcp_sock *msk = mptcp_token_get_sock(token); 4b738110d9bfa5 Peter Krystad 2020-02-26 19 struct sockaddr_in remote; 4b738110d9bfa5 Peter Krystad 2020-02-26 20 struct sockaddr_in local; 4b738110d9bfa5 Peter Krystad 2020-02-26 21 struct sock *sk; 4b738110d9bfa5 Peter Krystad 2020-02-26 22 int err; 4b738110d9bfa5 Peter Krystad 2020-02-26 23 4b738110d9bfa5 Peter Krystad 2020-02-26 24 if (!msk) 4b738110d9bfa5 Peter Krystad 2020-02-26 25 return -EINVAL; 4b738110d9bfa5 Peter Krystad 2020-02-26 26 4b738110d9bfa5 Peter Krystad 2020-02-26 27 pr_debug("msk=%p", msk); 4b738110d9bfa5 Peter Krystad 2020-02-26 28 4b738110d9bfa5 Peter Krystad 2020-02-26 29 sk = (struct sock *)msk; 4b738110d9bfa5 Peter Krystad 2020-02-26 30 if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { 4b738110d9bfa5 Peter Krystad 2020-02-26 31 err = -EBADR; 4b738110d9bfa5 Peter Krystad 2020-02-26 32 goto create_put; 4b738110d9bfa5 Peter Krystad 2020-02-26 33 } 4b738110d9bfa5 Peter Krystad 2020-02-26 34 4b738110d9bfa5 Peter Krystad 2020-02-26 35 local.sin_family = AF_INET; 4b738110d9bfa5 Peter Krystad 2020-02-26 36 local.sin_port = 0; 4b738110d9bfa5 Peter Krystad 2020-02-26 37 if (addr) 4b738110d9bfa5 Peter Krystad 2020-02-26 @38 local.sin_addr = *addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 39 else 4b738110d9bfa5 Peter Krystad 2020-02-26 40 local.sin_addr.s_addr = htonl(INADDR_ANY); 4b738110d9bfa5 Peter Krystad 2020-02-26 41 4b738110d9bfa5 Peter Krystad 2020-02-26 42 remote.sin_family = msk->pm.remote_family; 4b738110d9bfa5 Peter Krystad 2020-02-26 43 remote.sin_port = inet_sk(sk)->inet_dport; 4b738110d9bfa5 Peter Krystad 2020-02-26 44 remote.sin_addr = msk->pm.remote_addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 45 4b738110d9bfa5 Peter Krystad 2020-02-26 @46 err = mptcp_subflow_connect(sk, (struct sockaddr *)&local, 4b738110d9bfa5 Peter Krystad 2020-02-26 47 (struct sockaddr *)&remote, remote_id); 4b738110d9bfa5 Peter Krystad 2020-02-26 48 4b738110d9bfa5 Peter Krystad 2020-02-26 49 create_put: 4b738110d9bfa5 Peter Krystad 2020-02-26 50 sock_put(sk); 4b738110d9bfa5 Peter Krystad 2020-02-26 51 return err; 532e0037f0c3af Peter Krystad 2020-02-26 52 } 532e0037f0c3af Peter Krystad 2020-02-26 53 :::::: The code at line 46 was first introduced by commit :::::: 4b738110d9bfa5e1a763123e0ef6d0d2f5852782 mptcp: Implement path manager interface commands :::::: TO: Peter Krystad <peter.krystad(a)linux.intel.com> :::::: CC: Matthieu Baerts <matthieu.baerts(a)tessares.net> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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[mptcp:t/mptcp-Implement-path-manager-interface-commands 23/25] net/mptcp/pm.c:46:8: error: implicit declaration of function 'mptcp_subflow_connect'; did you mean 'mptcp_subflow_init'?

by kbuild test robot

tree: https://github.com/multipath-tcp/mptcp_net-next.git t/mptcp-Implement-path-manager-interface-commands head: a28e79bf6de027fea5d0522a32a686aacf5658a7 commit: eba1df51e6151d1cc04a559911cf905992581b22 [23/25] tgupdate: merge t/mptcp-Implement-path-manager-interface-commands base into t/mptcp-Implement-path-manager-interface-commands config: openrisc-randconfig-a001-20200228 (attached as .config) compiler: or1k-linux-gcc (GCC) 9.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout eba1df51e6151d1cc04a559911cf905992581b22 # save the attached .config to linux build tree GCC_VERSION=9.2.0 make.cross ARCH=openrisc If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com> Note: the mptcp/t/mptcp-Implement-path-manager-interface-commands HEAD a28e79bf6de027fea5d0522a32a686aacf5658a7 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): net/mptcp/pm.c: In function 'mptcp_pm_announce_addr': net/mptcp/pm.c:18:21: error: 'msk' redeclared as different kind of symbol 18 | struct mptcp_sock *msk = mptcp_token_get_sock(token); | ^~~ net/mptcp/pm.c:15:47: note: previous definition of 'msk' was here 15 | int mptcp_pm_announce_addr(struct mptcp_sock *msk, | ~~~~~~~~~~~~~~~~~~~^~~ net/mptcp/pm.c:18:48: error: 'token' undeclared (first use in this function); did you mean 'to_kset'? 18 | struct mptcp_sock *msk = mptcp_token_get_sock(token); | ^~~~~ | to_kset net/mptcp/pm.c:18:48: note: each undeclared identifier is reported only once for each function it appears in net/mptcp/pm.c:30:14: error: 'struct mptcp_pm_data' has no member named 'remote_valid' 30 | if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { | ^ net/mptcp/pm.c:30:31: error: 'remote_id' undeclared (first use in this function); did you mean 'remote'? 30 | if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { | ^~~~~~~~~ | remote net/mptcp/pm.c:30:52: error: 'struct mptcp_pm_data' has no member named 'remote_id'; did you mean 'remote'? 30 | if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { | ^~~~~~~~~ | remote net/mptcp/pm.c:38:20: error: incompatible types when assigning to type 'struct in_addr' from type 'const struct mptcp_addr_info' 38 | local.sin_addr = *addr; | ^ net/mptcp/pm.c:42:29: error: 'struct mptcp_pm_data' has no member named 'remote_family' 42 | remote.sin_family = msk->pm.remote_family; | ^ net/mptcp/pm.c:44:27: error: 'struct mptcp_pm_data' has no member named 'remote_addr' 44 | remote.sin_addr = msk->pm.remote_addr; | ^ >> net/mptcp/pm.c:46:8: error: implicit declaration of function 'mptcp_subflow_connect'; did you mean 'mptcp_subflow_init'? [-Werror=implicit-function-declaration] 46 | err = mptcp_subflow_connect(sk, (struct sockaddr *)&local, | ^~~~~~~~~~~~~~~~~~~~~ | mptcp_subflow_init net/mptcp/pm.c: In function 'mptcp_pm_remove_addr': net/mptcp/pm.c:56:21: error: 'msk' redeclared as different kind of symbol 56 | struct mptcp_sock *msk = mptcp_token_get_sock(token); | ^~~ net/mptcp/pm.c:54:45: note: previous definition of 'msk' was here 54 | int mptcp_pm_remove_addr(struct mptcp_sock *msk, u8 local_id) | ~~~~~~~~~~~~~~~~~~~^~~ net/mptcp/pm.c:56:48: error: 'token' undeclared (first use in this function); did you mean 'to_kset'? 56 | struct mptcp_sock *msk = mptcp_token_get_sock(token); | ^~~~~ | to_kset net/mptcp/pm.c:68:14: error: 'struct mptcp_pm_data' has no member named 'remote_valid' 68 | if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { | ^ net/mptcp/pm.c:68:31: error: 'remote_id' undeclared (first use in this function); did you mean 'remote'? 68 | if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { | ^~~~~~~~~ | remote net/mptcp/pm.c:68:52: error: 'struct mptcp_pm_data' has no member named 'remote_id'; did you mean 'remote'? 68 | if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { | ^~~~~~~~~ | remote net/mptcp/pm.c:75:6: error: 'addr' undeclared (first use in this function) 75 | if (addr) | ^~~~ net/mptcp/pm.c:80:30: error: 'struct mptcp_pm_data' has no member named 'remote_family' 80 | remote.sin6_family = msk->pm.remote_family; | ^ net/mptcp/pm.c:82:28: error: 'struct mptcp_pm_data' has no member named 'remote_addr6' 82 | remote.sin6_addr = msk->pm.remote_addr6; | ^ cc1: some warnings being treated as errors vim +46 net/mptcp/pm.c 532e0037f0c3af Peter Krystad 2020-02-26 14 cb6c1764eb317d Paolo Abeni 2020-02-24 15 int mptcp_pm_announce_addr(struct mptcp_sock *msk, cb6c1764eb317d Paolo Abeni 2020-02-24 16 const struct mptcp_addr_info *addr) 532e0037f0c3af Peter Krystad 2020-02-26 17 { 4b738110d9bfa5 Peter Krystad 2020-02-26 18 struct mptcp_sock *msk = mptcp_token_get_sock(token); 4b738110d9bfa5 Peter Krystad 2020-02-26 19 struct sockaddr_in remote; 4b738110d9bfa5 Peter Krystad 2020-02-26 20 struct sockaddr_in local; 4b738110d9bfa5 Peter Krystad 2020-02-26 21 struct sock *sk; 4b738110d9bfa5 Peter Krystad 2020-02-26 22 int err; 4b738110d9bfa5 Peter Krystad 2020-02-26 23 4b738110d9bfa5 Peter Krystad 2020-02-26 24 if (!msk) 4b738110d9bfa5 Peter Krystad 2020-02-26 25 return -EINVAL; 4b738110d9bfa5 Peter Krystad 2020-02-26 26 4b738110d9bfa5 Peter Krystad 2020-02-26 27 pr_debug("msk=%p", msk); 4b738110d9bfa5 Peter Krystad 2020-02-26 28 4b738110d9bfa5 Peter Krystad 2020-02-26 29 sk = (struct sock *)msk; 4b738110d9bfa5 Peter Krystad 2020-02-26 30 if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { 4b738110d9bfa5 Peter Krystad 2020-02-26 31 err = -EBADR; 4b738110d9bfa5 Peter Krystad 2020-02-26 32 goto create_put; 4b738110d9bfa5 Peter Krystad 2020-02-26 33 } 4b738110d9bfa5 Peter Krystad 2020-02-26 34 4b738110d9bfa5 Peter Krystad 2020-02-26 35 local.sin_family = AF_INET; 4b738110d9bfa5 Peter Krystad 2020-02-26 36 local.sin_port = 0; 4b738110d9bfa5 Peter Krystad 2020-02-26 37 if (addr) 4b738110d9bfa5 Peter Krystad 2020-02-26 38 local.sin_addr = *addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 39 else 4b738110d9bfa5 Peter Krystad 2020-02-26 40 local.sin_addr.s_addr = htonl(INADDR_ANY); 4b738110d9bfa5 Peter Krystad 2020-02-26 41 4b738110d9bfa5 Peter Krystad 2020-02-26 42 remote.sin_family = msk->pm.remote_family; 4b738110d9bfa5 Peter Krystad 2020-02-26 43 remote.sin_port = inet_sk(sk)->inet_dport; 4b738110d9bfa5 Peter Krystad 2020-02-26 44 remote.sin_addr = msk->pm.remote_addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 45 4b738110d9bfa5 Peter Krystad 2020-02-26 @46 err = mptcp_subflow_connect(sk, (struct sockaddr *)&local, 4b738110d9bfa5 Peter Krystad 2020-02-26 47 (struct sockaddr *)&remote, remote_id); 4b738110d9bfa5 Peter Krystad 2020-02-26 48 4b738110d9bfa5 Peter Krystad 2020-02-26 49 create_put: 4b738110d9bfa5 Peter Krystad 2020-02-26 50 sock_put(sk); 4b738110d9bfa5 Peter Krystad 2020-02-26 51 return err; 532e0037f0c3af Peter Krystad 2020-02-26 52 } 532e0037f0c3af Peter Krystad 2020-02-26 53 :::::: The code at line 46 was first introduced by commit :::::: 4b738110d9bfa5e1a763123e0ef6d0d2f5852782 mptcp: Implement path manager interface commands :::::: TO: Peter Krystad <peter.krystad(a)linux.intel.com> :::::: CC: Matthieu Baerts <matthieu.baerts(a)tessares.net> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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[mptcp:t/mptcp-Implement-path-manager-interface-commands 21/25] net/mptcp/pm.c:30:15: error: 'struct mptcp_pm_data' has no member named 'remote_valid'; did you mean 'remote'?

by kbuild test robot

tree: https://github.com/multipath-tcp/mptcp_net-next.git t/mptcp-Implement-path-manager-interface-commands head: a28e79bf6de027fea5d0522a32a686aacf5658a7 commit: f8513e13c445c1804d044dae4b612ea986b491cb [21/25] tgupdate: merge t/mptcp-Implement-path-manager-interface-commands base into t/mptcp-Implement-path-manager-interface-commands config: s390-randconfig-a001-20200228 (attached as .config) compiler: s390-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout f8513e13c445c1804d044dae4b612ea986b491cb # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=s390 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com> Note: the mptcp/t/mptcp-Implement-path-manager-interface-commands HEAD a28e79bf6de027fea5d0522a32a686aacf5658a7 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): net/mptcp/pm.c: In function 'mptcp_pm_announce_addr': net/mptcp/pm.c:18:21: error: 'msk' redeclared as different kind of symbol struct mptcp_sock *msk = mptcp_token_get_sock(token); ^~~ net/mptcp/pm.c:15:47: note: previous definition of 'msk' was here int mptcp_pm_announce_addr(struct mptcp_sock *msk, ^~~ net/mptcp/pm.c:18:48: error: 'token' undeclared (first use in this function); did you mean 'to_kset'? struct mptcp_sock *msk = mptcp_token_get_sock(token); ^~~~~ to_kset net/mptcp/pm.c:18:48: note: each undeclared identifier is reported only once for each function it appears in >> net/mptcp/pm.c:30:15: error: 'struct mptcp_pm_data' has no member named 'remote_valid'; did you mean 'remote'? if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^~~~~~~~~~~~ remote net/mptcp/pm.c:30:31: error: 'remote_id' undeclared (first use in this function); did you mean 'remote'? if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^~~~~~~~~ remote net/mptcp/pm.c:30:52: error: 'struct mptcp_pm_data' has no member named 'remote_id'; did you mean 'remote'? if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^~~~~~~~~ remote net/mptcp/pm.c:38:18: error: incompatible types when assigning to type 'struct in_addr' from type 'const struct mptcp_addr_info' local.sin_addr = *addr; ^ net/mptcp/pm.c:42:29: error: 'struct mptcp_pm_data' has no member named 'remote_family' remote.sin_family = msk->pm.remote_family; ^ >> net/mptcp/pm.c:44:28: error: 'struct mptcp_pm_data' has no member named 'remote_addr'; did you mean 'remote'? remote.sin_addr = msk->pm.remote_addr; ^~~~~~~~~~~ remote net/mptcp/pm.c: In function 'mptcp_pm_remove_addr': net/mptcp/pm.c:56:21: error: 'msk' redeclared as different kind of symbol struct mptcp_sock *msk = mptcp_token_get_sock(token); ^~~ net/mptcp/pm.c:54:45: note: previous definition of 'msk' was here int mptcp_pm_remove_addr(struct mptcp_sock *msk, u8 local_id) ^~~ net/mptcp/pm.c:56:48: error: 'token' undeclared (first use in this function); did you mean 'to_kset'? struct mptcp_sock *msk = mptcp_token_get_sock(token); ^~~~~ to_kset net/mptcp/pm.c:68:15: error: 'struct mptcp_pm_data' has no member named 'remote_valid'; did you mean 'remote'? if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^~~~~~~~~~~~ remote net/mptcp/pm.c:68:31: error: 'remote_id' undeclared (first use in this function); did you mean 'remote'? if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^~~~~~~~~ remote net/mptcp/pm.c:68:52: error: 'struct mptcp_pm_data' has no member named 'remote_id'; did you mean 'remote'? if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^~~~~~~~~ remote >> net/mptcp/pm.c:75:6: error: 'addr' undeclared (first use in this function); did you mean 'idr'? if (addr) ^~~~ idr net/mptcp/pm.c:80:30: error: 'struct mptcp_pm_data' has no member named 'remote_family' remote.sin6_family = msk->pm.remote_family; ^ >> net/mptcp/pm.c:82:29: error: 'struct mptcp_pm_data' has no member named 'remote_addr6'; did you mean 'remote'? remote.sin6_addr = msk->pm.remote_addr6; ^~~~~~~~~~~~ remote vim +30 net/mptcp/pm.c 532e0037f0c3af Peter Krystad 2020-02-26 14 cb6c1764eb317d Paolo Abeni 2020-02-24 15 int mptcp_pm_announce_addr(struct mptcp_sock *msk, cb6c1764eb317d Paolo Abeni 2020-02-24 16 const struct mptcp_addr_info *addr) 532e0037f0c3af Peter Krystad 2020-02-26 17 { 4b738110d9bfa5 Peter Krystad 2020-02-26 18 struct mptcp_sock *msk = mptcp_token_get_sock(token); 4b738110d9bfa5 Peter Krystad 2020-02-26 19 struct sockaddr_in remote; 4b738110d9bfa5 Peter Krystad 2020-02-26 20 struct sockaddr_in local; 4b738110d9bfa5 Peter Krystad 2020-02-26 21 struct sock *sk; 4b738110d9bfa5 Peter Krystad 2020-02-26 22 int err; 4b738110d9bfa5 Peter Krystad 2020-02-26 23 4b738110d9bfa5 Peter Krystad 2020-02-26 24 if (!msk) 4b738110d9bfa5 Peter Krystad 2020-02-26 25 return -EINVAL; 4b738110d9bfa5 Peter Krystad 2020-02-26 26 4b738110d9bfa5 Peter Krystad 2020-02-26 27 pr_debug("msk=%p", msk); 4b738110d9bfa5 Peter Krystad 2020-02-26 28 4b738110d9bfa5 Peter Krystad 2020-02-26 29 sk = (struct sock *)msk; 4b738110d9bfa5 Peter Krystad 2020-02-26 @30 if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { 4b738110d9bfa5 Peter Krystad 2020-02-26 31 err = -EBADR; 4b738110d9bfa5 Peter Krystad 2020-02-26 32 goto create_put; 4b738110d9bfa5 Peter Krystad 2020-02-26 33 } 4b738110d9bfa5 Peter Krystad 2020-02-26 34 4b738110d9bfa5 Peter Krystad 2020-02-26 35 local.sin_family = AF_INET; 4b738110d9bfa5 Peter Krystad 2020-02-26 36 local.sin_port = 0; 4b738110d9bfa5 Peter Krystad 2020-02-26 37 if (addr) 4b738110d9bfa5 Peter Krystad 2020-02-26 38 local.sin_addr = *addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 39 else 4b738110d9bfa5 Peter Krystad 2020-02-26 40 local.sin_addr.s_addr = htonl(INADDR_ANY); 4b738110d9bfa5 Peter Krystad 2020-02-26 41 4b738110d9bfa5 Peter Krystad 2020-02-26 42 remote.sin_family = msk->pm.remote_family; 4b738110d9bfa5 Peter Krystad 2020-02-26 43 remote.sin_port = inet_sk(sk)->inet_dport; 4b738110d9bfa5 Peter Krystad 2020-02-26 @44 remote.sin_addr = msk->pm.remote_addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 45 4b738110d9bfa5 Peter Krystad 2020-02-26 46 err = mptcp_subflow_connect(sk, (struct sockaddr *)&local, 4b738110d9bfa5 Peter Krystad 2020-02-26 47 (struct sockaddr *)&remote, remote_id); 4b738110d9bfa5 Peter Krystad 2020-02-26 48 4b738110d9bfa5 Peter Krystad 2020-02-26 49 create_put: 4b738110d9bfa5 Peter Krystad 2020-02-26 50 sock_put(sk); 4b738110d9bfa5 Peter Krystad 2020-02-26 51 return err; 532e0037f0c3af Peter Krystad 2020-02-26 52 } 532e0037f0c3af Peter Krystad 2020-02-26 53 cb6c1764eb317d Paolo Abeni 2020-02-24 54 int mptcp_pm_remove_addr(struct mptcp_sock *msk, u8 local_id) 532e0037f0c3af Peter Krystad 2020-02-26 55 { 4b738110d9bfa5 Peter Krystad 2020-02-26 56 struct mptcp_sock *msk = mptcp_token_get_sock(token); 4b738110d9bfa5 Peter Krystad 2020-02-26 57 struct sockaddr_in6 remote; 4b738110d9bfa5 Peter Krystad 2020-02-26 58 struct sockaddr_in6 local; 4b738110d9bfa5 Peter Krystad 2020-02-26 59 struct sock *sk; 4b738110d9bfa5 Peter Krystad 2020-02-26 60 int err; 4b738110d9bfa5 Peter Krystad 2020-02-26 61 4b738110d9bfa5 Peter Krystad 2020-02-26 62 if (!msk) 4b738110d9bfa5 Peter Krystad 2020-02-26 63 return -EINVAL; 4b738110d9bfa5 Peter Krystad 2020-02-26 64 4b738110d9bfa5 Peter Krystad 2020-02-26 65 pr_debug("msk=%p", msk); 4b738110d9bfa5 Peter Krystad 2020-02-26 66 sk = (struct sock *)msk; 4b738110d9bfa5 Peter Krystad 2020-02-26 67 4b738110d9bfa5 Peter Krystad 2020-02-26 68 if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { 4b738110d9bfa5 Peter Krystad 2020-02-26 69 err = -EBADR; 4b738110d9bfa5 Peter Krystad 2020-02-26 70 goto create_put; 4b738110d9bfa5 Peter Krystad 2020-02-26 71 } 4b738110d9bfa5 Peter Krystad 2020-02-26 72 4b738110d9bfa5 Peter Krystad 2020-02-26 73 local.sin6_family = AF_INET6; 4b738110d9bfa5 Peter Krystad 2020-02-26 74 local.sin6_port = 0; 4b738110d9bfa5 Peter Krystad 2020-02-26 @75 if (addr) 4b738110d9bfa5 Peter Krystad 2020-02-26 76 local.sin6_addr = *addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 77 else 4b738110d9bfa5 Peter Krystad 2020-02-26 78 local.sin6_addr = in6addr_any; 4b738110d9bfa5 Peter Krystad 2020-02-26 79 4b738110d9bfa5 Peter Krystad 2020-02-26 80 remote.sin6_family = msk->pm.remote_family; 4b738110d9bfa5 Peter Krystad 2020-02-26 81 remote.sin6_port = inet_sk(sk)->inet_dport; 4b738110d9bfa5 Peter Krystad 2020-02-26 @82 remote.sin6_addr = msk->pm.remote_addr6; 4b738110d9bfa5 Peter Krystad 2020-02-26 83 4b738110d9bfa5 Peter Krystad 2020-02-26 84 err = mptcp_subflow_connect(sk, (struct sockaddr *)&local, 4b738110d9bfa5 Peter Krystad 2020-02-26 85 (struct sockaddr *)&remote, remote_id); 4b738110d9bfa5 Peter Krystad 2020-02-26 86 4b738110d9bfa5 Peter Krystad 2020-02-26 87 create_put: 4b738110d9bfa5 Peter Krystad 2020-02-26 88 sock_put(sk); 4b738110d9bfa5 Peter Krystad 2020-02-26 89 return err; 532e0037f0c3af Peter Krystad 2020-02-26 90 } 532e0037f0c3af Peter Krystad 2020-02-26 91 :::::: The code at line 30 was first introduced by commit :::::: 4b738110d9bfa5e1a763123e0ef6d0d2f5852782 mptcp: Implement path manager interface commands :::::: TO: Peter Krystad <peter.krystad(a)linux.intel.com> :::::: CC: Matthieu Baerts <matthieu.baerts(a)tessares.net> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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[mptcp:t/mptcp-Implement-path-manager-interface-commands 21/25] net/mptcp/pm.c:18:21: error: 'msk' redeclared as different kind of symbol

by kbuild test robot

tree: https://github.com/multipath-tcp/mptcp_net-next.git t/mptcp-Implement-path-manager-interface-commands head: a28e79bf6de027fea5d0522a32a686aacf5658a7 commit: f8513e13c445c1804d044dae4b612ea986b491cb [21/25] tgupdate: merge t/mptcp-Implement-path-manager-interface-commands base into t/mptcp-Implement-path-manager-interface-commands config: openrisc-randconfig-a001-20200228 (attached as .config) compiler: or1k-linux-gcc (GCC) 9.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout f8513e13c445c1804d044dae4b612ea986b491cb # save the attached .config to linux build tree GCC_VERSION=9.2.0 make.cross ARCH=openrisc If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com> Note: the mptcp/t/mptcp-Implement-path-manager-interface-commands HEAD a28e79bf6de027fea5d0522a32a686aacf5658a7 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): net/mptcp/pm.c: In function 'mptcp_pm_announce_addr': >> net/mptcp/pm.c:18:21: error: 'msk' redeclared as different kind of symbol 18 | struct mptcp_sock *msk = mptcp_token_get_sock(token); | ^~~ net/mptcp/pm.c:15:47: note: previous definition of 'msk' was here 15 | int mptcp_pm_announce_addr(struct mptcp_sock *msk, | ~~~~~~~~~~~~~~~~~~~^~~ >> net/mptcp/pm.c:18:48: error: 'token' undeclared (first use in this function); did you mean 'to_kset'? 18 | struct mptcp_sock *msk = mptcp_token_get_sock(token); | ^~~~~ | to_kset net/mptcp/pm.c:18:48: note: each undeclared identifier is reported only once for each function it appears in >> net/mptcp/pm.c:30:14: error: 'struct mptcp_pm_data' has no member named 'remote_valid' 30 | if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { | ^ >> net/mptcp/pm.c:30:31: error: 'remote_id' undeclared (first use in this function); did you mean 'remote'? 30 | if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { | ^~~~~~~~~ | remote >> net/mptcp/pm.c:30:52: error: 'struct mptcp_pm_data' has no member named 'remote_id'; did you mean 'remote'? 30 | if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { | ^~~~~~~~~ | remote >> net/mptcp/pm.c:38:20: error: incompatible types when assigning to type 'struct in_addr' from type 'const struct mptcp_addr_info' 38 | local.sin_addr = *addr; | ^ >> net/mptcp/pm.c:42:29: error: 'struct mptcp_pm_data' has no member named 'remote_family' 42 | remote.sin_family = msk->pm.remote_family; | ^ >> net/mptcp/pm.c:44:27: error: 'struct mptcp_pm_data' has no member named 'remote_addr' 44 | remote.sin_addr = msk->pm.remote_addr; | ^ net/mptcp/pm.c: In function 'mptcp_pm_remove_addr': net/mptcp/pm.c:56:21: error: 'msk' redeclared as different kind of symbol 56 | struct mptcp_sock *msk = mptcp_token_get_sock(token); | ^~~ net/mptcp/pm.c:54:45: note: previous definition of 'msk' was here 54 | int mptcp_pm_remove_addr(struct mptcp_sock *msk, u8 local_id) | ~~~~~~~~~~~~~~~~~~~^~~ net/mptcp/pm.c:56:48: error: 'token' undeclared (first use in this function); did you mean 'to_kset'? 56 | struct mptcp_sock *msk = mptcp_token_get_sock(token); | ^~~~~ | to_kset net/mptcp/pm.c:68:14: error: 'struct mptcp_pm_data' has no member named 'remote_valid' 68 | if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { | ^ net/mptcp/pm.c:68:31: error: 'remote_id' undeclared (first use in this function); did you mean 'remote'? 68 | if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { | ^~~~~~~~~ | remote net/mptcp/pm.c:68:52: error: 'struct mptcp_pm_data' has no member named 'remote_id'; did you mean 'remote'? 68 | if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { | ^~~~~~~~~ | remote >> net/mptcp/pm.c:75:6: error: 'addr' undeclared (first use in this function) 75 | if (addr) | ^~~~ net/mptcp/pm.c:80:30: error: 'struct mptcp_pm_data' has no member named 'remote_family' 80 | remote.sin6_family = msk->pm.remote_family; | ^ >> net/mptcp/pm.c:82:28: error: 'struct mptcp_pm_data' has no member named 'remote_addr6' 82 | remote.sin6_addr = msk->pm.remote_addr6; | ^ vim +/msk +18 net/mptcp/pm.c 532e0037f0c3af Peter Krystad 2020-02-26 14 cb6c1764eb317d Paolo Abeni 2020-02-24 15 int mptcp_pm_announce_addr(struct mptcp_sock *msk, cb6c1764eb317d Paolo Abeni 2020-02-24 16 const struct mptcp_addr_info *addr) 532e0037f0c3af Peter Krystad 2020-02-26 17 { 4b738110d9bfa5 Peter Krystad 2020-02-26 @18 struct mptcp_sock *msk = mptcp_token_get_sock(token); 4b738110d9bfa5 Peter Krystad 2020-02-26 19 struct sockaddr_in remote; 4b738110d9bfa5 Peter Krystad 2020-02-26 20 struct sockaddr_in local; 4b738110d9bfa5 Peter Krystad 2020-02-26 21 struct sock *sk; 4b738110d9bfa5 Peter Krystad 2020-02-26 22 int err; 4b738110d9bfa5 Peter Krystad 2020-02-26 23 4b738110d9bfa5 Peter Krystad 2020-02-26 24 if (!msk) 4b738110d9bfa5 Peter Krystad 2020-02-26 25 return -EINVAL; 4b738110d9bfa5 Peter Krystad 2020-02-26 26 4b738110d9bfa5 Peter Krystad 2020-02-26 27 pr_debug("msk=%p", msk); 4b738110d9bfa5 Peter Krystad 2020-02-26 28 4b738110d9bfa5 Peter Krystad 2020-02-26 29 sk = (struct sock *)msk; 4b738110d9bfa5 Peter Krystad 2020-02-26 @30 if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { 4b738110d9bfa5 Peter Krystad 2020-02-26 31 err = -EBADR; 4b738110d9bfa5 Peter Krystad 2020-02-26 32 goto create_put; 4b738110d9bfa5 Peter Krystad 2020-02-26 33 } 4b738110d9bfa5 Peter Krystad 2020-02-26 34 4b738110d9bfa5 Peter Krystad 2020-02-26 35 local.sin_family = AF_INET; 4b738110d9bfa5 Peter Krystad 2020-02-26 36 local.sin_port = 0; 4b738110d9bfa5 Peter Krystad 2020-02-26 37 if (addr) 4b738110d9bfa5 Peter Krystad 2020-02-26 @38 local.sin_addr = *addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 39 else 4b738110d9bfa5 Peter Krystad 2020-02-26 40 local.sin_addr.s_addr = htonl(INADDR_ANY); 4b738110d9bfa5 Peter Krystad 2020-02-26 41 4b738110d9bfa5 Peter Krystad 2020-02-26 @42 remote.sin_family = msk->pm.remote_family; 4b738110d9bfa5 Peter Krystad 2020-02-26 43 remote.sin_port = inet_sk(sk)->inet_dport; 4b738110d9bfa5 Peter Krystad 2020-02-26 @44 remote.sin_addr = msk->pm.remote_addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 45 4b738110d9bfa5 Peter Krystad 2020-02-26 46 err = mptcp_subflow_connect(sk, (struct sockaddr *)&local, 4b738110d9bfa5 Peter Krystad 2020-02-26 47 (struct sockaddr *)&remote, remote_id); 4b738110d9bfa5 Peter Krystad 2020-02-26 48 4b738110d9bfa5 Peter Krystad 2020-02-26 49 create_put: 4b738110d9bfa5 Peter Krystad 2020-02-26 50 sock_put(sk); 4b738110d9bfa5 Peter Krystad 2020-02-26 51 return err; 532e0037f0c3af Peter Krystad 2020-02-26 52 } 532e0037f0c3af Peter Krystad 2020-02-26 53 cb6c1764eb317d Paolo Abeni 2020-02-24 54 int mptcp_pm_remove_addr(struct mptcp_sock *msk, u8 local_id) 532e0037f0c3af Peter Krystad 2020-02-26 55 { 4b738110d9bfa5 Peter Krystad 2020-02-26 56 struct mptcp_sock *msk = mptcp_token_get_sock(token); 4b738110d9bfa5 Peter Krystad 2020-02-26 57 struct sockaddr_in6 remote; 4b738110d9bfa5 Peter Krystad 2020-02-26 58 struct sockaddr_in6 local; 4b738110d9bfa5 Peter Krystad 2020-02-26 59 struct sock *sk; 4b738110d9bfa5 Peter Krystad 2020-02-26 60 int err; 4b738110d9bfa5 Peter Krystad 2020-02-26 61 4b738110d9bfa5 Peter Krystad 2020-02-26 62 if (!msk) 4b738110d9bfa5 Peter Krystad 2020-02-26 63 return -EINVAL; 4b738110d9bfa5 Peter Krystad 2020-02-26 64 4b738110d9bfa5 Peter Krystad 2020-02-26 65 pr_debug("msk=%p", msk); 4b738110d9bfa5 Peter Krystad 2020-02-26 66 sk = (struct sock *)msk; 4b738110d9bfa5 Peter Krystad 2020-02-26 67 4b738110d9bfa5 Peter Krystad 2020-02-26 68 if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { 4b738110d9bfa5 Peter Krystad 2020-02-26 69 err = -EBADR; 4b738110d9bfa5 Peter Krystad 2020-02-26 70 goto create_put; 4b738110d9bfa5 Peter Krystad 2020-02-26 71 } 4b738110d9bfa5 Peter Krystad 2020-02-26 72 4b738110d9bfa5 Peter Krystad 2020-02-26 73 local.sin6_family = AF_INET6; 4b738110d9bfa5 Peter Krystad 2020-02-26 74 local.sin6_port = 0; 4b738110d9bfa5 Peter Krystad 2020-02-26 @75 if (addr) 4b738110d9bfa5 Peter Krystad 2020-02-26 76 local.sin6_addr = *addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 77 else 4b738110d9bfa5 Peter Krystad 2020-02-26 78 local.sin6_addr = in6addr_any; 4b738110d9bfa5 Peter Krystad 2020-02-26 79 4b738110d9bfa5 Peter Krystad 2020-02-26 80 remote.sin6_family = msk->pm.remote_family; 4b738110d9bfa5 Peter Krystad 2020-02-26 81 remote.sin6_port = inet_sk(sk)->inet_dport; 4b738110d9bfa5 Peter Krystad 2020-02-26 @82 remote.sin6_addr = msk->pm.remote_addr6; 4b738110d9bfa5 Peter Krystad 2020-02-26 83 4b738110d9bfa5 Peter Krystad 2020-02-26 84 err = mptcp_subflow_connect(sk, (struct sockaddr *)&local, 4b738110d9bfa5 Peter Krystad 2020-02-26 85 (struct sockaddr *)&remote, remote_id); 4b738110d9bfa5 Peter Krystad 2020-02-26 86 4b738110d9bfa5 Peter Krystad 2020-02-26 87 create_put: 4b738110d9bfa5 Peter Krystad 2020-02-26 88 sock_put(sk); 4b738110d9bfa5 Peter Krystad 2020-02-26 89 return err; 532e0037f0c3af Peter Krystad 2020-02-26 90 } 532e0037f0c3af Peter Krystad 2020-02-26 91 :::::: The code at line 18 was first introduced by commit :::::: 4b738110d9bfa5e1a763123e0ef6d0d2f5852782 mptcp: Implement path manager interface commands :::::: TO: Peter Krystad <peter.krystad(a)linux.intel.com> :::::: CC: Matthieu Baerts <matthieu.baerts(a)tessares.net> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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[PATCH v4 0/9] add locking to PM APis, implement PM netlink

by Paolo Abeni

This implement the locking required by the PM to allow concurent subflow accessing the msk PM data in a safe way. Such data is protected via a msk-level spinlock. It relies on the Double checked locking to avoid contention in the most common scenarion (no or very little PM "actions"). Additionally changes more than a bit the PM hooks/APIs, to be hopefully simpler and avoiding duplicate code (no v4/v6 variant, work queue management done by the core PM infra). It also introduce the PM netlink - it replace the current basic ones, the related patch has been dropped locally. git tree available at: https://github.com/pabeni/mptcp/tree/mptcp_net-next_part3_7 changes from v3: - many cleanup and netlink fixes (Matt) - see individual patches changelog for the details changes from v2: - hook the new tests into the self-tests infra changes from v1: - 2 new patches: mp_join self-tests (9/9) and a specific mp_join fix (6/9) - fixed several bugs as pointed out by the above tests - added support for bind to interface changes from RFC: - cleanup uAPIs - added self-tests for the uAPIs - fixed ton of bugs - included feedback from Mat include/uapi/linux/mptcp.h | 53 + net/mptcp/Makefile | 3 net/mptcp/options.c | 60 - net/mptcp/pm.c | 361 +++------ net/mptcp/pm_netlink.c | 829 ++++++++++++++++++++++ net/mptcp/protocol.c | 14 net/mptcp/protocol.h | 113 +- net/mptcp/subflow.c | 65 + tools/testing/selftests/net/mptcp/Makefile | 9 tools/testing/selftests/net/mptcp/mptcp_connect.c | 19 tools/testing/selftests/net/mptcp/mptcp_join.sh | 296 +++++++ tools/testing/selftests/net/mptcp/pm_netlink.sh | 123 +++ tools/testing/selftests/net/mptcp/pm_nl_ctl.c | 604 ++++++++++++++++ 13 files changed, 2230 insertions(+), 319 deletions(-)

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[mptcp:t/mptcp-Implement-path-manager-interface-commands 20/20] net/mptcp/pm.c:31:5: error: 'struct mptcp_sock' has no member named 'addr_signal'

by kbuild test robot

tree: https://github.com/multipath-tcp/mptcp_net-next.git t/mptcp-Implement-path-manager-interface-commands head: 781d512532236fdeb2038457060aa4a470e01f7e commit: 781d512532236fdeb2038457060aa4a470e01f7e [20/20] tgupdate: merge t/mptcp-Implement-path-manager-interface-commands base into t/mptcp-Implement-path-manager-interface-commands config: c6x-allyesconfig (attached as .config) compiler: c6x-elf-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 781d512532236fdeb2038457060aa4a470e01f7e # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=c6x If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com> All errors (new ones prefixed by >>): net/mptcp/pm.c: In function 'mptcp_pm_announce_addr': >> net/mptcp/pm.c:31:5: error: 'struct mptcp_sock' has no member named 'addr_signal' msk->addr_signal = 1; ^~ net/mptcp/pm.c: In function 'mptcp_pm_announce_addr6': net/mptcp/pm.c:57:5: error: 'struct mptcp_sock' has no member named 'addr_signal' msk->addr_signal = 1; ^~ vim +31 net/mptcp/pm.c 532e0037f0c3af Peter Krystad 2020-02-26 12 532e0037f0c3af Peter Krystad 2020-02-26 13 int mptcp_pm_announce_addr(u32 token, u8 local_id, struct in_addr *addr) 532e0037f0c3af Peter Krystad 2020-02-26 14 { 4b738110d9bfa5 Peter Krystad 2020-02-26 15 struct mptcp_sock *msk = mptcp_token_get_sock(token); 4b738110d9bfa5 Peter Krystad 2020-02-26 16 int err = 0; 4b738110d9bfa5 Peter Krystad 2020-02-26 17 4b738110d9bfa5 Peter Krystad 2020-02-26 18 if (!msk) 4b738110d9bfa5 Peter Krystad 2020-02-26 19 return -EINVAL; 4b738110d9bfa5 Peter Krystad 2020-02-26 20 4b738110d9bfa5 Peter Krystad 2020-02-26 21 if (msk->pm.local_valid) { 4b738110d9bfa5 Peter Krystad 2020-02-26 22 err = -EBADR; 4b738110d9bfa5 Peter Krystad 2020-02-26 23 goto announce_put; 4b738110d9bfa5 Peter Krystad 2020-02-26 24 } 4b738110d9bfa5 Peter Krystad 2020-02-26 25 4b738110d9bfa5 Peter Krystad 2020-02-26 26 pr_debug("msk=%p, local_id=%d", msk, local_id); 4b738110d9bfa5 Peter Krystad 2020-02-26 27 msk->pm.local_valid = 1; 4b738110d9bfa5 Peter Krystad 2020-02-26 28 msk->pm.local_id = local_id; 4b738110d9bfa5 Peter Krystad 2020-02-26 29 msk->pm.local_family = AF_INET; 4b738110d9bfa5 Peter Krystad 2020-02-26 30 msk->pm.local_addr = *addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 @31 msk->addr_signal = 1; 4b738110d9bfa5 Peter Krystad 2020-02-26 32 4b738110d9bfa5 Peter Krystad 2020-02-26 33 announce_put: 4b738110d9bfa5 Peter Krystad 2020-02-26 34 sock_put((struct sock *)msk); 4b738110d9bfa5 Peter Krystad 2020-02-26 35 return err; 532e0037f0c3af Peter Krystad 2020-02-26 36 } 532e0037f0c3af Peter Krystad 2020-02-26 37 :::::: The code at line 31 was first introduced by commit :::::: 4b738110d9bfa5e1a763123e0ef6d0d2f5852782 mptcp: Implement path manager interface commands :::::: TO: Peter Krystad <peter.krystad(a)linux.intel.com> :::::: CC: Matthieu Baerts <matthieu.baerts(a)tessares.net> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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mptcp February 2020