This reverts commit 0efea3c649f0 because of:
- The returning -ENOBUF error is fine on socket buffer allocation.
- There is side effect in the calling path
tipc_node_xmit()->tipc_link_xmit() when checking error code returning.
Fixes: 0efea3c649f0 ("tipc: Return the correct errno code")
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking updates from Jakub Kicinski:
"Core:
- BPF:
- add syscall program type and libbpf support for generating
instructions and bindings for in-kernel BPF loaders (BPF loaders
for BPF), this is a stepping stone for signed BPF programs
- infrastructure to migrate TCP child sockets from one listener to
another in the same reuseport group/map to improve flexibility
of service hand-off/restart
- add broadcast support to XDP redirect
- allow bypass of the lockless qdisc to improving performance (for
pktgen: +23% with one thread, +44% with 2 threads)
- add a simpler version of "DO_ONCE()" which does not require jump
labels, intended for slow-path usage
- virtio/vsock: introduce SOCK_SEQPACKET support
- add getsocketopt to retrieve netns cookie
- ip: treat lowest address of a IPv4 subnet as ordinary unicast
address allowing reclaiming of precious IPv4 addresses
- ipv6: use prandom_u32() for ID generation
- ip: add support for more flexible field selection for hashing
across multi-path routes (w/ offload to mlxsw)
- icmp: add support for extended RFC 8335 PROBE (ping)
- seg6: add support for SRv6 End.DT46 behavior
- mptcp:
- DSS checksum support (RFC 8684) to detect middlebox meddling
- support Connection-time 'C' flag
- time stamping support
- sctp: packetization Layer Path MTU Discovery (RFC 8899)
- xfrm: speed up state addition with seq set
- WiFi:
- hidden AP discovery on 6 GHz and other HE 6 GHz improvements
- aggregation handling improvements for some drivers
- minstrel improvements for no-ack frames
- deferred rate control for TXQs to improve reaction times
- switch from round robin to virtual time-based airtime scheduler
- add trace points:
- tcp checksum errors
- openvswitch - action execution, upcalls
- socket errors via sk_error_report
Device APIs:
- devlink: add rate API for hierarchical control of max egress rate
of virtual devices (VFs, SFs etc.)
- don't require RCU read lock to be held around BPF hooks in NAPI
context
- page_pool: generic buffer recycling
New hardware/drivers:
- mobile:
- iosm: PCIe Driver for Intel M.2 Modem
- support for Qualcomm MSM8998 (ipa)
- WiFi: Qualcomm QCN9074 and WCN6855 PCI devices
- sparx5: Microchip SparX-5 family of Enterprise Ethernet switches
- Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)
- NXP SJA1110 Automotive Ethernet 10-port switch
- Qualcomm QCA8327 switch support (qca8k)
- Mikrotik 10/25G NIC (atl1c)
Driver changes:
- ACPI support for some MDIO, MAC and PHY devices from Marvell and
NXP (our first foray into MAC/PHY description via ACPI)
- HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx
- Mellanox/Nvidia NIC (mlx5)
- NIC VF offload of L2 bridging
- support IRQ distribution to Sub-functions
- Marvell (prestera):
- add flower and match all
- devlink trap
- link aggregation
- Netronome (nfp): connection tracking offload
- Intel 1GE (igc): add AF_XDP support
- Marvell DPU (octeontx2): ingress ratelimit offload
- Google vNIC (gve): new ring/descriptor format support
- Qualcomm mobile (rmnet & ipa): inline checksum offload support
- MediaTek WiFi (mt76)
- mt7915 MSI support
- mt7915 Tx status reporting
- mt7915 thermal sensors support
- mt7921 decapsulation offload
- mt7921 enable runtime pm and deep sleep
- Realtek WiFi (rtw88)
- beacon filter support
- Tx antenna path diversity support
- firmware crash information via devcoredump
- Qualcomm WiFi (wcn36xx)
- Wake-on-WLAN support with magic packets and GTK rekeying
- Micrel PHY (ksz886x/ksz8081): add cable test support"
* tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2168 commits)
tcp: change ICSK_CA_PRIV_SIZE definition
tcp_yeah: check struct yeah size at compile time
gve: DQO: Fix off by one in gve_rx_dqo()
stmmac: intel: set PCI_D3hot in suspend
stmmac: intel: Enable PHY WOL option in EHL
net: stmmac: option to enable PHY WOL with PMT enabled
net: say "local" instead of "static" addresses in ndo_dflt_fdb_{add,del}
net: use netdev_info in ndo_dflt_fdb_{add,del}
ptp: Set lookup cookie when creating a PTP PPS source.
net: sock: add trace for socket errors
net: sock: introduce sk_error_report
net: dsa: replay the local bridge FDB entries pointing to the bridge dev too
net: dsa: ensure during dsa_fdb_offload_notify that dev_hold and dev_put are on the same dev
net: dsa: include fdb entries pointing to bridge in the host fdb list
net: dsa: include bridge addresses which are local in the host fdb list
net: dsa: sync static FDB entries on foreign interfaces to hardware
net: dsa: install the host MDB and FDB entries in the master's RX filter
net: dsa: reference count the FDB addresses at the cross-chip notifier level
net: dsa: introduce a separate cross-chip notifier type for host FDBs
net: dsa: reference count the MDB entries at the cross-chip notifier level
...
Pull fallthrough fixes from Gustavo Silva: "Fix many fall-through warnings when building with Clang 12.0.0 and '-Wimplicit-fallthrough' so that we at some point will be able to enable that warning by default" * tag 'fallthrough-fixes-clang-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (26 commits) rxrpc: Fix fall-through warnings for Clang drm/nouveau/clk: Fix fall-through warnings for Clang drm/nouveau/therm: Fix fall-through warnings for Clang drm/nouveau: Fix fall-through warnings for Clang xfs: Fix fall-through warnings for Clang xfrm: Fix fall-through warnings for Clang tipc: Fix fall-through warnings for Clang sctp: Fix fall-through warnings for Clang rds: Fix fall-through warnings for Clang net/packet: Fix fall-through warnings for Clang net: netrom: Fix fall-through warnings for Clang ide: Fix fall-through warnings for Clang hwmon: (max6621) Fix fall-through warnings for Clang hwmon: (corsair-cpro) Fix fall-through warnings for Clang firewire: core: Fix fall-through warnings for Clang braille_console: Fix fall-through warnings for Clang ipv4: Fix fall-through warnings for Clang qlcnic: Fix fall-through warnings for Clang bnxt_en: Fix fall-through warnings for Clang netxen_nic: Fix fall-through warnings for Clang ...
When kalloc or kmemdup failed, should return ENOMEM rather than ENOBUF. Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This patch is to use "struct work_struct" for the finalize work queue instead of "struct tipc_net_work", as it can get the "net" and "addr" from tipc_net's other members and there is no need to add extra net and addr in tipc_net by defining "struct tipc_net_work". Note that it's safe to get net from tn->bcl as bcl is always released after the finalize work queue is done. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Jon Maloy <jmaloy@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning by explicitly adding a break statement instead of letting the code fall through to the next case. Link: https://github.com/KSPP/linux/issues/115 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
A function has a different name between their prototype and its kernel-doc markup: ../net/tipc/link.c:2551: warning: expecting prototype for link_reset_stats(). Prototype was for tipc_link_reset_stats() instead ../net/tipc/node.c:1678: warning: expecting prototype for is the general link level function for message sending(). Prototype was for tipc_node_xmit() instead Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Jon Maloy <jmaloy@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The buffer list can have zero skb as following path:
tipc_named_node_up()->tipc_node_xmit()->tipc_link_xmit(), so
we need to check the list before casting an &sk_buff.
Fault report:
[] tipc: Bulk publication failure
[] general protection fault, probably for non-canonical [#1] PREEMPT [...]
[] KASAN: null-ptr-deref in range [0x00000000000000c8-0x00000000000000cf]
[] CPU: 0 PID: 0 Comm: swapper/0 Kdump: loaded Not tainted 5.10.0-rc4+ #2
[] Hardware name: Bochs ..., BIOS Bochs 01/01/2011
[] RIP: 0010:tipc_link_xmit+0xc1/0x2180
[] Code: 24 b8 00 00 00 00 4d 39 ec 4c 0f 44 e8 e8 d7 0a 10 f9 48 [...]
[] RSP: 0018:ffffc90000006ea0 EFLAGS: 00010202
[] RAX: dffffc0000000000 RBX: ffff8880224da000 RCX: 1ffff11003d3cc0d
[] RDX: 0000000000000019 RSI: ffffffff886007b9 RDI: 00000000000000c8
[] RBP: ffffc90000007018 R08: 0000000000000001 R09: fffff52000000ded
[] R10: 0000000000000003 R11: fffff52000000dec R12: ffffc90000007148
[] R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000007018
[] FS: 0000000000000000(0000) GS:ffff888037400000(0000) knlGS:000[...]
[] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[] CR2: 00007fffd2db5000 CR3: 000000002b08f000 CR4: 00000000000006f0
Fixes: af9b028e270fd ("tipc: make media xmit call outside node spinlock context")
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
Link: https://lore.kernel.org/r/20210108071337.3598-1-hoang.h.le@dektech.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fix Return: kernel-doc notation in all net/tipc/ source files. Also keep ReST list notation intact for output formatting. Fix a few typos in comments. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fix link.c kernel-doc warnings in preparation for adding to the networking docbook. ../net/tipc/link.c:200: warning: Function parameter or member 'session' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'snd_nxt_state' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'rcv_nxt_state' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'in_session' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'active' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'if_name' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'rst_cnt' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'drop_point' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'failover_reasm_skb' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'failover_deferdq' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'transmq' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'backlog' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'snd_nxt' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'rcv_unacked' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'deferdq' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'window' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'min_win' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'ssthresh' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'max_win' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'cong_acks' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'checkpoint' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'reasm_tnlmsg' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'last_gap' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'last_ga' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'bc_rcvlink' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'bc_sndlink' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'nack_state' not described in 'tipc_link' ../net/tipc/link.c:200: warning: Function parameter or member 'bc_peer_is_up' not described in 'tipc_link' ../net/tipc/link.c:473: warning: Function parameter or member 'self' not described in 'tipc_link_create' ../net/tipc/link.c:473: warning: Function parameter or member 'peer_id' not described in 'tipc_link_create' ../net/tipc/link.c:473: warning: Excess function parameter 'ownnode' description in 'tipc_link_create' ../net/tipc/link.c:544: warning: Function parameter or member 'ownnode' not described in 'tipc_link_bc_create' ../net/tipc/link.c:544: warning: Function parameter or member 'peer' not described in 'tipc_link_bc_create' ../net/tipc/link.c:544: warning: Function parameter or member 'peer_id' not described in 'tipc_link_bc_create' ../net/tipc/link.c:544: warning: Function parameter or member 'peer_caps' not described in 'tipc_link_bc_create' ../net/tipc/link.c:544: warning: Function parameter or member 'bc_sndlink' not described in 'tipc_link_bc_create' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>