summaryrefslogtreecommitdiffstats
path: root/net
Commit message (Collapse)AuthorAgeFilesLines
* geneve: move definition of geneve_hdr() to geneve.hJohn W. Linville2015-05-132-10/+0
| | | | | | | This is a static inline with identical definitions in multiple places... Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* geneve: remove MODULE_ALIAS_RTNL_LINK from net/ipv4/geneve.cJohn W. Linville2015-05-131-1/+0
| | | | | | | | | This file is essentially a library for implementing the geneve encapsulation protocol. The file does not register any rtnl_link_ops, so the MODULE_ALIAS_RTNL_LINK macro is inappropriate here. Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* packet: rollover statisticsWillem de Bruijn2015-05-132-1/+21
| | | | | | | | | | | | | | | | | Rollover indicates exceptional conditions. Export a counter to inform socket owners of this state. If no socket with sufficient room is found, rollover fails. Also count these events. Finally, also count when flows are rolled over early thanks to huge flow detection, to validate its correctness. Tested: Read counters in bench_rollover on all other tests in the patchset Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* packet: rollover huge flows before small flowsWillem de Bruijn2015-05-132-3/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Migrate flows from a socket to another socket in the fanout group not only when the socket is full. Start migrating huge flows early, to divert possible 4-tuple attacks without affecting normal traffic. Introduce fanout_flow_is_huge(). This detects huge flows, which are defined as taking up more than half the load. It does so cheaply, by storing the rxhashes of the N most recent packets. If over half of these are the same rxhash as the current packet, then drop it. This only protects against 4-tuple attacks. N is chosen to fit all data in a single cache line. Tested: Ran bench_rollover for 10 sec with 1.5 Mpps of single flow input. lpbb5:/export/hda3/willemb# ./bench_rollover -l 1000 -r -s cpu rx rx.k drop.k rollover r.huge r.failed 0 14 14 0 0 0 0 1 20 20 0 0 0 0 2 16 16 0 0 0 0 3 6168824 6168824 0 4867721 4867721 0 4 4867741 4867741 0 0 0 0 5 12 12 0 0 0 0 6 15 15 0 0 0 0 7 17 17 0 0 0 0 Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* packet: rollover lock contention avoidanceWillem de Bruijn2015-05-132-7/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rollover has to call packet_rcv_has_room on sockets in the fanout group to find a socket to migrate to. This operation is expensive especially if the packet sockets use rings, when a lock has to be acquired. Avoid pounding on the lock by all sockets by temporarily marking a socket as "under memory pressure" when such pressure is detected. While set, only the socket owner may call packet_rcv_has_room on the socket. Once it detects normal conditions, it clears the flag. The socket is not used as a victim by any other socket in the meantime. Under reasonably balanced load, each socket writer frequently calls packet_rcv_has_room and clears its own pressure field. As a backup for when the socket is rarely written to, also clear the flag on reading (packet_recvmsg, packet_poll) if this can be done cheaply (i.e., without calling packet_rcv_has_room). This is only for edge cases. Tested: Ran bench_rollover: a process with 8 sockets in a single fanout group, each pinned to a single cpu that receives one nic recv interrupt. RPS and RFS are disabled. The benchmark uses packet rx_ring, which has to take a lock when determining whether a socket has room. Sent 3.5 Mpps of UDP traffic with sufficient entropy to spread uniformly across the packet sockets (and inserted an iptables rule to drop in PREROUTING to avoid protocol stack processing). Without this patch, all sockets try to migrate traffic to neighbors, causing lock contention when searching for a non- empty neighbor. The lock is the top 9 entries. perf record -a -g sleep 5 - 17.82% bench_rollover [kernel.kallsyms] [k] _raw_spin_lock - _raw_spin_lock - 99.00% spin_lock + 81.77% packet_rcv_has_room.isra.41 + 18.23% tpacket_rcv + 0.84% packet_rcv_has_room.isra.41 + 5.20% ksoftirqd/6 [kernel.kallsyms] [k] _raw_spin_lock + 5.15% ksoftirqd/1 [kernel.kallsyms] [k] _raw_spin_lock + 5.14% ksoftirqd/2 [kernel.kallsyms] [k] _raw_spin_lock + 5.12% ksoftirqd/7 [kernel.kallsyms] [k] _raw_spin_lock + 5.12% ksoftirqd/5 [kernel.kallsyms] [k] _raw_spin_lock + 5.10% ksoftirqd/4 [kernel.kallsyms] [k] _raw_spin_lock + 4.66% ksoftirqd/0 [kernel.kallsyms] [k] _raw_spin_lock + 4.45% ksoftirqd/3 [kernel.kallsyms] [k] _raw_spin_lock + 1.55% bench_rollover [kernel.kallsyms] [k] packet_rcv_has_room.isra.41 On net-next with this patch, this lock contention is no longer a top entry. Most time is spent in the actual read function. Next up are other locks: + 15.52% bench_rollover bench_rollover [.] reader + 4.68% swapper [kernel.kallsyms] [k] memcpy_erms + 2.77% swapper [kernel.kallsyms] [k] packet_lookup_frame.isra.51 + 2.56% ksoftirqd/1 [kernel.kallsyms] [k] memcpy_erms + 2.16% swapper [kernel.kallsyms] [k] tpacket_rcv + 1.93% swapper [kernel.kallsyms] [k] mlx4_en_process_rx_cq Looking closer at the remaining _raw_spin_lock, the cost of probing in rollover is now comparable to the cost of taking the lock later in tpacket_rcv. - 1.51% swapper [kernel.kallsyms] [k] _raw_spin_lock - _raw_spin_lock + 33.41% packet_rcv_has_room + 28.15% tpacket_rcv + 19.54% enqueue_to_backlog + 6.45% __free_pages_ok + 2.78% packet_rcv_fanout + 2.13% fanout_demux_rollover + 2.01% netif_receive_skb_internal Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* packet: rollover only to socket with headroomWillem de Bruijn2015-05-131-17/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Only migrate flows to sockets that have sufficient headroom, where sufficient is defined as having at least 25% empty space. The kernel has three different buffer types: a regular socket, a ring with frames (TPACKET_V[12]) or a ring with blocks (TPACKET_V3). The latter two do not expose a read pointer to the kernel, so headroom is not computed easily. All three needs a different implementation to estimate free space. Tested: Ran bench_rollover for 10 sec with 1.5 Mpps of single flow input. bench_rollover has as many sockets as there are NIC receive queues in the system. Each socket is owned by a process that is pinned to one of the receive cpus. RFS is disabled. RPS is enabled with an identity mapping (cpu x -> cpu x), to count drops with softnettop. lpbb5:/export/hda3/willemb# ./bench_rollover -r -l 1000 -s Press [Enter] to exit cpu rx rx.k drop.k rollover r.huge r.failed 0 16 16 0 0 0 0 1 21 21 0 0 0 0 2 5227502 5227502 0 0 0 0 3 18 18 0 0 0 0 4 6083289 6083289 0 5227496 0 0 5 22 22 0 0 0 0 6 21 21 0 0 0 0 7 9 9 0 0 0 0 Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* packet: rollover prepare: per-socket stateWillem de Bruijn2015-05-132-4/+23
| | | | | | | | Replace rollover state per fanout group with state per socket. Future patches will add fields to the new structure. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* packet: rollover prepare: move code out of callsitesWillem de Bruijn2015-05-131-9/+10
| | | | | | | | | | | | | | packet_rcv_fanout calls fanout_demux_rollover twice. Move all rollover logic into the callee to simplify these callsites, especially with upcoming changes. The main differences between the two callsites is that the FLAG variant tests whether the socket previously selected by another mode (RR, RND, HASH, ..) has room before migrating flows, whereas the rollover mode has no original socket to test. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv4: __ip_local_out_sk() is staticEric Dumazet2015-05-131-1/+1
| | | | | | | | | | | __ip_local_out_sk() is only used from net/ipv4/ip_output.c net/ipv4/ip_output.c:94:5: warning: symbol '__ip_local_out_sk' was not declared. Should it be static? Fixes: 7026b1ddb6b8 ("netfilter: Pass socket pointer down through okfn().") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tcp/dccp: tw_timer_handler() is staticEric Dumazet2015-05-131-1/+1
| | | | | | | | tw_timer_handler() is only used from net/ipv4/inet_timewait_sock.c Fixes: 789f558cfb36 ("tcp/dccp: get rid of central timewait timer") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tc: introduce Flower classifierJiri Pirko2015-05-133-0/+699
| | | | | | | | | | | | | This patch introduces a flow-based filter. So far, the very essential packet fields are supported. This patch is only the first step. There is a lot of potential performance improvements possible to implement. Also a lot of features are missing now. They will be addressed in follow-up patches. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* flow_dissector: change port array into src, dst tupleJiri Pirko2015-05-132-4/+4
| | | | | Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* flow_dissector: introduce support for Ethernet addressesJiri Pirko2015-05-131-0/+12
| | | | | Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* flow_dissector: introduce support for ipv6 addresssesJiri Pirko2015-05-131-8/+21
| | | | | | | | So far, only hashes made out of ipv6 addresses could be dissected. This patch introduces support for dissection of full ipv6 addresses. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* flow_dissect: use programable dissector in skb_flow_dissect and friendsJiri Pirko2015-05-134-76/+153
| | | | | Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* flow_dissector: introduce programable flow_dissectorJiri Pirko2015-05-131-0/+48
| | | | | | | | Introduce dissector infrastructure which allows user to specify which parts of skb he wants to dissect. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* flow_dissector: fix doc for skb_get_poffJiri Pirko2015-05-131-2/+6
| | | | | Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: move netdev_pick_tx and dependencies to net/core/dev.cJiri Pirko2015-05-132-78/+78
| | | | | | | | next to its user. No relation to flow_dissector so it makes no sense to have it in flow_dissector.c Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: move __skb_tx_hash to dev.cJiri Pirko2015-05-132-28/+28
| | | | | | | | __skb_tx_hash function has no relation to flow_dissect so just move it to dev.c Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* flow_dissector: fix doc for __skb_get_hash and remove couple of empty linesJiri Pirko2015-05-131-5/+5
| | | | | Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: move *skb_get_poff declarations into correct headerJiri Pirko2015-05-132-0/+2
| | | | | | | | Since these functions are defined in flow_dissector.c, move header declarations from skbuff.h into flow_dissector.h Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: change name of flow_dissector header to match the .c file nameJiri Pirko2015-05-133-3/+3
| | | | | | | add couple of empty lines on the way. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: sched: use counter to break reclassify loopsFlorian Westphal2015-05-132-10/+4
| | | | | | | | | | | | | | | | | | | | | Seems all we want here is to avoid endless 'goto reclassify' loop. tc_classify_compat even resets this counter when something other than TC_ACT_RECLASSIFY is returned, so this skb-counter doesn't break hypothetical loops induced by something other than perpetual TC_ACT_RECLASSIFY return values. skb_act_clone is now identical to skb_clone, so just use that. Tested with following (bogus) filter: tc filter add dev eth0 parent ffff: \ protocol ip u32 match u32 0 0 police rate 10Kbit burst \ 64000 mtu 1500 action reclassify Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2015-05-1331-87/+526
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Four minor merge conflicts: 1) qca_spi.c renamed the local variable used for the SPI device from spi_device to spi, meanwhile the spi_set_drvdata() call got moved further up in the probe function. 2) Two changes were both adding new members to codel params structure, and thus we had overlapping changes to the initializer function. 3) 'net' was making a fix to sk_release_kernel() which is completely removed in 'net-next'. 4) In net_namespace.c, the rtnl_net_fill() call for GET operations had the command value fixed, meanwhile 'net-next' adjusted the argument signature a bit. This also matches example merge resolutions posted by Stephen Rothwell over the past two days. Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2015-05-1240-132/+611
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Handle max TX power properly wrt VIFs and the MAC in iwlwifi, from Avri Altman. 2) Use the correct FW API for scan completions in iwlwifi, from Avraham Stern. 3) FW monitor in iwlwifi accidently uses unmapped memory, fix from Liad Kaufman. 4) rhashtable conversion of mac80211 station table was buggy, the virtual interface was not taken into account. Fix from Johannes Berg. 5) Fix deadlock in rtlwifi by not using a zero timeout for usb_control_msg(), from Larry Finger. 6) Update reordering state before calculating loss detection, from Yuchung Cheng. 7) Fix off by one in bluetooth firmward parsing, from Dan Carpenter. 8) Fix extended frame handling in xiling_can driver, from Jeppe Ledet-Pedersen. 9) Fix CODEL packet scheduler behavior in the presence of TSO packets, from Eric Dumazet. 10) Fix NAPI budget testing in fm10k driver, from Alexander Duyck. 11) macvlan needs to propagate promisc settings down the the lower device, from Vlad Yasevich. 12) igb driver can oops when changing number of rings, from Toshiaki Makita. 13) Source specific default routes not handled properly in ipv6, from Markus Stenberg. 14) Use after free in tc_ctl_tfilter(), from WANG Cong. 15) Use softirq spinlocking in netxen driver, from Tony Camuso. 16) Two ARM bpf JIT fixes from Nicolas Schichan. 17) Handle MSG_DONTWAIT properly in ring based AF_PACKET sends, from Mathias Kretschmer. 18) Fix x86 bpf JIT implementation of FROM_{BE16,LE16,LE32}, from Alexei Starovoitov. 19) ll_temac driver DMA maps TX packet header with incorrect length, fix from Michal Simek. 20) We removed pm_qos bits from netdevice.h, but some indirect references remained. Kill them. From David Ahern. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (90 commits) net: Remove remaining remnants of pm_qos from netdevice.h e1000e: Add pm_qos header net: phy: micrel: Fix regression in kszphy_probe net: ll_temac: Fix DMA map size bug x86: bpf_jit: fix FROM_BE16 and FROM_LE16/32 instructions netns: return RTM_NEWNSID instead of RTM_GETNSID on a get Update be2net maintainers' email addresses net_sched: gred: use correct backlog value in WRED mode pppoe: drop pppoe device in pppoe_unbind_sock_work net: qca_spi: Fix possible race during probe net: mdio-gpio: Allow for unspecified bus id af_packet / TX_RING not fully non-blocking (w/ MSG_DONTWAIT). bnx2x: limit fw delay in kdump to 5s after boot ARM: net: delegate filter to kernel interpreter when imm_offset() return value can't fit into 12bits. ARM: net fix emit_udiv() for BPF_ALU | BPF_DIV | BPF_K intruction. mpls: Change reserved label names to be consistent with netbsd usbnet: avoid integer overflow in start_xmit netxen_nic: use spin_[un]lock_bh around tx_clean_lock (2) net: xgene_enet: Set hardware dependency net: amd-xgbe: Add hardware dependency ...
| | * netns: return RTM_NEWNSID instead of RTM_GETNSID on a getNicolas Dichtel2015-05-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Usually, RTM_NEWxxx is returned on a get (same as a dump). Fixes: 0c7aecd4bde4 ("netns: add rtnl cmd to add and get peer netns ids") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * net_sched: gred: use correct backlog value in WRED modeDavid Ward2015-05-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In WRED mode, the backlog for a single virtual queue (VQ) should not be used to determine queue behavior; instead the backlog is summed across all VQs. This sum is currently used when calculating the average queue lengths. It also needs to be used when determining if the queue's hard limit has been reached, or when reporting each VQ's backlog via netlink. q->backlog will only be used if the queue switches out of WRED mode. Signed-off-by: David Ward <david.ward@ll.mit.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * af_packet / TX_RING not fully non-blocking (w/ MSG_DONTWAIT).Kretschmer, Mathias2015-05-101-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes an issue where the send(MSG_DONTWAIT) call on a TX_RING is not fully non-blocking in cases where the device's sndBuf is full. We pass nonblock=true to sock_alloc_send_skb() and return any possibly occuring error code (most likely EGAIN) to the caller. As the fast-path stays as it is, we keep the unlikely() around skb == NULL. Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * mpls: Change reserved label names to be consistent with netbsdTom Herbert2015-05-091-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | Since these are now visible to userspace it is nice to be consistent with BSD (sys/netmpls/mpls.h in netBSD). Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * net_sched: fix a use-after-free in tc_ctl_tfilter()WANG Cong2015-05-091-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When tcf_destroy() returns true, tp could be already destroyed, we should not use tp->next after that. For long term, we probably should move tp list to list_head. Fixes: 1e052be69d04 ("net_sched: destroy proto tp when all filters are gone") Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * net/rds: RDS-TCP: only initiate reconnect attempt on outgoing TCP socket.Sowmini Varadhan2015-05-091-2/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the peer of an RDS-TCP connection restarts, a reconnect attempt should only be made from the active side of the TCP connection, i.e. the side that has a transient TCP port number. Do not add the passive side of the TCP connection to the c_hash_node and thus avoid triggering rds_queue_reconnect() for passive rds connections. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * net/rds: RDS-TCP: Always create a new rds_sock for an incoming connection.Sowmini Varadhan2015-05-093-0/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When running RDS over TCP, the active (client) side connects to the listening ("passive") side at the RDS_TCP_PORT. After the connection is established, if the client side reboots (potentially without even sending a FIN) the server still has a TCP socket in the esablished state. If the server-side now gets a new SYN comes from the client with a different client port, TCP will create a new socket-pair, but the RDS layer will incorrectly pull up the old rds_connection (which is still associated with the stale t_sock and RDS socket state). This patch corrects this behavior by having rds_tcp_accept_one() always create a new connection for an incoming TCP SYN. The rds and tcp state associated with the old socket-pair is cleaned up via the rds_tcp_state_change() callback which would typically be invoked in most cases when the client-TCP sends a FIN on TCP restart, triggering a transition to CLOSE_WAIT state. In the rarer event of client death without a FIN, TCP_KEEPALIVE probes on the socket will detect the stale socket, and the TCP transition to CLOSE state will trigger the RDS state cleanup. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * ipv6: Fixed source specific default route handling.Markus Stenberg2015-05-092-10/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If there are only IPv6 source specific default routes present, the host gets -ENETUNREACH on e.g. connect() because ip6_dst_lookup_tail calls ip6_route_output first, and given source address any, it fails, and ip6_route_get_saddr is never called. The change is to use the ip6_route_get_saddr, even if the initial ip6_route_output fails, and then doing ip6_route_output _again_ after we have appropriate source address available. Note that this is '99% fix' to the problem; a correct fix would be to do route lookups only within addrconf.c when picking a source address, and never call ip6_route_output before source address has been populated. Signed-off-by: Markus Stenberg <markus.stenberg@iki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * Merge branch 'for-upstream' of ↵David S. Miller2015-05-093-4/+7
| | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth Johan Hedberg says: ==================== Here are a couple of important Bluetooth & mac802154 fixes for 4.1: - mac802154 fix for crypto algorithm allocation failure checking - mac802154 wpan phy leak fix for error code path - Fix for not calling Bluetooth shutdown() if interface is not up Let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| | | * mac802154: llsec: fix return value check in llsec_key_alloc()Wei Yongjun2015-04-301-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case of error, the functions crypto_alloc_aead() and crypto_alloc_blkcipher() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | | * mac802154: fix ieee802154_register_hw error handlingAlexander Aring2015-04-301-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently if ieee802154_if_add failed, we don't unregister the wpan phy which was registered before. This patch adds a correct error handling for unregister the wpan phy when ieee802154_if_add failed. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | | * Bluetooth: Skip the shutdown routine if the interface is not upGabriele Mazzotta2015-04-301-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most likely, the shutdown routine requires the interface to be up. This is the case for BTUSB_INTEL: the routine tries to send a command to the interface, but since this one is down, it fails and exits once HCI_INIT_TIMEOUT has expired. Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: stable@vger.kernel.org # 4.0.x
| | * | tcp_westwood: fix tcp_westwood_info()Eric Dumazet2015-05-051-7/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I forgot to update tcp_westwood when changing get_info() behavior, this patch should fix this. Fixes: 64f40ff5bbdb ("tcp: prepare CC get_info() access from getsockopt()") Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | mpls: Move reserved label definitionsTom Herbert2015-05-052-19/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Move to include/uapi/linux/mpls.h to be externally visibile. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | Merge tag 'mac80211-for-davem-2015-05-04' of ↵David S. Miller2015-05-042-6/+25
| | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== We have only a few fixes right now: * a fix for an issue with hash collision handling in the rhashtable conversion * a merge issue - rhashtable removed default shrinking just before mac80211 was converted, so enable it now * remove an invalid WARN that can trigger with legitimate userspace behaviour * add a struct member missing from kernel-doc that caused a lot of warnings ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| | | * | mac80211: enable hash table shrinkingJohannes Berg2015-04-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The hashtable behaviour change was merged into the tree at about the same time as the mac80211 use of rhashtable, but of course these don't really conflict in the normal sense. Enable hash table shrinking now. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| | | * | mac80211: fix rhashtable conversionJohannes Berg2015-04-231-1/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | My conversion of the mac80211 station hash table to rhashtable completely broke the lookup in sta_info_get() as it no longer took into account the virtual interface. Fix that. Fixes: 7bedd0cfad4e1 ("mac80211: use rhashtable for station table") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| | | * | mac80211: don't warn when stopping VLAN with stationsJohannes Berg2015-04-201-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Stations assigned to an AP_VLAN type interface are flushed when the interface is stopped, but then we warn about it. Suppress the warning since there's nothing else that would ensure those stations are already removed at this point. Reported-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| | * | | Merge branch 'for-upstream' of ↵David S. Miller2015-05-0418-67/+439
| | |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Johan Hedberg says: ==================== pull request: bluetooth-next 2015-05-04 Here's the first bluetooth-next pull request for 4.2: - Various fixes for at86rf230 driver - ieee802154: trace events support for rdev->ops - HCI UART driver refactoring - New Realtek IDs added to btusb driver - Off-by-one fix for rtl8723b in btusb driver - Refactoring of btbcm driver for both UART & USB use Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| | | * | | ieee802154: trace: fix endian convertionAlexander Aring2015-04-301-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fix endian convertions for extended address and short address handling when TP_printk is called. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Cc: Guido Günther <agx@sigxcpu.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | | * | | cfg802154: pass name_assign_type to rdev_add_virtual_intf()Varka Bhadram2015-04-307-12/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This code is based on commit 6bab2e19c5ffd ("cfg80211: pass name_assign_type to rdev_add_virtual_intf()") This will expose in sysfs whether the ifname of a IEEE-802.15.4 device is set by userspace or generated by the kernel. We are using two types of name_assign_types o NET_NAME_ENUM: Default interface name provided by kernel o NET_NAME_USER: Interface name provided by user. Signed-off-by: Varka Bhadram <varkab@cdac.in> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | | * | | ieee802154: Add trace events for rdev->opsGuido Günther2015-04-304-12/+322
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enabling tracing via echo 1 > /sys/kernel/debug/tracing/events/cfg802154/enable enables event tracing like iwpan dev wpan0 set pan_id 0xbeef cat /sys/kernel/debug/tracing/trace # tracer: nop # # entries-in-buffer/entries-written: 2/2 #P:1 # # _-----=> irqs-off # / _----=> need-resched # | / _---=> hardirq/softirq # || / _--=> preempt-depth # ||| / delay # TASK-PID CPU# |||| TIMESTAMP FUNCTION # | | | |||| | | iwpan-2663 [000] .... 170.369142: 802154_rdev_set_pan_id: phy0, wpan_dev(1), pan id: 0xbeef iwpan-2663 [000] .... 170.369177: 802154_rdev_return_int: phy0, returned: 0 Signed-off-by: Guido Günther <agx@sigxcpu.org> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | * | | | net/rds: Fix new sparse warningDavid Ahern2015-05-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | c0adf54a109 introduced new sparse warnings: CHECK /home/dahern/kernels/linux.git/net/rds/ib_cm.c net/rds/ib_cm.c:191:34: warning: incorrect type in initializer (different base types) net/rds/ib_cm.c:191:34: expected unsigned long long [unsigned] [usertype] dp_ack_seq net/rds/ib_cm.c:191:34: got restricted __be64 <noident> net/rds/ib_cm.c:194:51: warning: cast to restricted __be64 The temporary variable for sequence number should have been declared as __be64 rather than u64. Make it so. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: shamir rabinovitch <shamir.rabinovitch@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | net: core: Correct an over-stringent device loop detection.Vlad Yasevich2015-05-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code in __netdev_upper_dev_link() has an over-stringent loop detection logic that actually prevents valid configurations from working correctly. In particular, the logic returns an error if an upper device is already in the list of all upper devices for a given dev. This particular check seems to be a overzealous as it disallows perfectly valid configurations. For example: # ip l a link eth0 name eth0.10 type vlan id 10 # ip l a dev br0 typ bridge # ip l s eth0.10 master br0 # ip l s eth0 master br0 <--- Will fail If you switch the last two commands (add eth0 first), then both will succeed. If after that, you remove eth0 and try to re-add it, it will fail! It appears to be enough to simply check adj_list to keeps things safe. I've tried stacking multiple devices multiple times in all different combinations, and either rx_handler registration prevented the stacking of the device linking cought the error. Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Veaceslav Falico <vfalico@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | Revert "net: kernel socket should be released in init_net namespace"Herbert Xu2015-05-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit c243d7e20996254f89c28d4838b5feca735c030d. That patch is solving a non-existant problem while creating a real problem. Just because a socket is allocated in the init name space doesn't mean that it gets hashed in the init name space. When we unhash it the name space must be the same as the one we had when we hashed it. So this patch is completely bogus and causes socket leaks. Reported-by: Andrey Wagin <avagin@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 12:10:38 +0000