- 23 Jun, 2016 4 commits
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Eric Dumazet authored
If the packet was dropped by lower qdisc, then we must not access it later. Save qdisc_pkt_len(skb) in a temp variable. Fixes: 2ccccf5f ("net_sched: update hierarchical backlog too") Signed-off-by:
Eric Dumazet <edumazet@google.com> Cc: WANG Cong <xiyou.wangcong@gmail.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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WANG Cong authored
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:
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WANG Cong authored
Alexey reported that we have GFP_KERNEL allocation when holding the spinlock tcf_lock. Actually we don't have to take that spinlock for all the cases, especially for the new one we just create. To modify the existing actions, we still need this spinlock to make sure the whole update is atomic. For net-next, we can get rid of this spinlock because we already hold the RTNL lock on slow path, and on fast path we can use RCU to protect the metalist. Joint work with Jamal. Reported-by:
Alexey Khoroshilov <khoroshilov@ispras.ru> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by:
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Herbert Xu authored
Blair Steven noticed that ESN in conjunction with UDP encapsulation is broken because we set the temporary ESP header to the wrong spot. This patch fixes this by first of all using the right spot, i.e., 4 bytes off the real ESP header, and then saving this information so that after encryption we can restore it properly. Fixes: 7021b2e1 ("esp4: Switch to new AEAD interface") Reported-by:
Blair Steven <Blair.Steven@alliedtelesis.co.nz> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Acked-by:
Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by:
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- 22 Jun, 2016 7 commits
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David S. Miller authored
Tariq Toukan says: ==================== mlx4_en fixes for 4.7-rc This small patchset includes two small fixes for mlx4_en driver. One allows a clean shutdown even when clients do not release their netdev reference. The other adds error return values to the VLAN VID add/kill functions. ==================== Signed-off-by: -
Eran Ben Elisha authored
This allows a clean shutdown, even if some netdev clients do not release their reference from this netdev. It is enough to release the HW resources only as the kernel is shutting down. Fixes: 2ba5fbd6 ('net/mlx4_core: Handle AER flow properly') Signed-off-by:
Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by:
Tariq Toukan <tariqt@mellanox.com> Signed-off-by:
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Kamal Heib authored
Modify mlx4_en_vlan_rx_[add/kill]_vid to return error value in case of failure. Fixes: 8e586137 ('net: make vlan ndo_vlan_rx_[add/kill]_vid return error value') Signed-off-by:
Kamal Heib <kamalh@mellanox.com> Signed-off-by:
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Jon Paul Maloy authored
When extracting an individual message from a received "bundle" buffer, we just create a clone of the base buffer, and adjust it to point into the right position of the linearized data area of the latter. This works well for regular message reception, but during periods of extremely high load it may happen that an extracted buffer, e.g, a connection probe, is reversed and forwarded through an external interface while the preceding extracted message is still unhandled. When this happens, the header or data area of the preceding message will be partially overwritten by a MAC header, leading to unpredicatable consequences, such as a link reset. We now fix this by ensuring that the msg_reverse() function never returns a cloned buffer, and that the returned buffer always contains sufficient valid head and tail room to be forwarded. Reported-by:
Erik Hugne <erik.hugne@gmail.com> Acked-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
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Jiri Slaby authored
Every open of /proc/net/kcm leaks 16 bytes of memory as is reported by kmemleak: unreferenced object 0xffff88059c0e3458 (size 192): comm "cat", pid 1401, jiffies 4294935742 (age 310.720s) hex dump (first 32 bytes): 28 45 71 96 05 88 ff ff 00 10 00 00 00 00 00 00 (Eq............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8156a2de>] kmem_cache_alloc_trace+0x16e/0x230 [<ffffffff8162a479>] seq_open+0x79/0x1d0 [<ffffffffa0578510>] kcm_seq_open+0x0/0x30 [kcm] [<ffffffff8162a479>] seq_open+0x79/0x1d0 [<ffffffff8162a8cf>] __seq_open_private+0x2f/0xa0 [<ffffffff81712548>] seq_open_net+0x38/0xa0 ... It is caused by a missing free in the ->release path. So fix it by providing seq_release_net as the ->release method. Signed-off-by:Jiri Slaby <jslaby@suse.cz> Fixes: cd6e111b (kcm: Add statistics and proc interfaces) Cc: "David S. Miller" <davem@davemloft.net> Cc: Tom Herbert <tom@herbertland.com> Cc: netdev@vger.kernel.org Signed-off-by:
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Ido Schimmel authored
Both dev_uc_sync_multiple() and dev_mc_sync_multiple() require the source device to be locked by netif_addr_lock_bh(), but this is missing in team's enslave function, so add it. This fixes the following lockdep warning: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(_xmit_ETHER/1); local_irq_disable(); lock(&(&mc->mca_lock)->rlock); lock(&team_netdev_addr_lock_key); <Interrupt> lock(&(&mc->mca_lock)->rlock); *** DEADLOCK *** Fixes: cb41c997 ("team: team should sync the port's uc/mc addrs when add a port") Signed-off-by:Jiri Pirko <jiri@mellanox.com> Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
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David S. Miller authored
Merge tag 'linux-can-fixes-for-4.7-20160620' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can Marc Kleine-Budde says: ==================== pull-request: can 2016-06-20 this is a pull request of 3 patches for the upcoming linux-4.7 release. The first patch is by Thor Thayer for the c_can/d_can driver. It fixes the registar access on Altera Cyclone devices, which caused CAN frames to have 0x0 in the first two bytes incorrectly. Wolfgang Grandegger's patch for the at91 driver fixes a hanging driver under high bus load situations. A patch for the gs_usb driver by Maximilian Schneider adds support for the bytewerk.org candleLight interface. ==================== Signed-off-by:
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- 20 Jun, 2016 3 commits
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Maximilian Schneider authored
This patchs adds basic support for the bytewerk.org candleLight interface, a open hardware (CERN OHL) USB CAN adapter. Signed-off-by:
Hubert Denkmair <hubert@denkmair.de> Signed-off-by:
Maximilian Schneider <max@schneidersoft.net> Signed-off-by:
Marc Kleine-Budde <mkl@pengutronix.de>
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Wolfgang Grandegger authored
At high bus load it could happen that "at91_poll()" enters with all RX message boxes filled up. If then at the end the "quota" is exceeded as well, "rx_next" will not be reset to the first RX mailbox and hence the interrupts remain disabled. Signed-off-by:
Wolfgang Grandegger <wg@grandegger.com> Tested-by:
Amr Bekhit <amrbekhit@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Thor Thayer authored
When testing CAN write floods on Altera's CycloneV, the first 2 bytes are sometimes 0x00, 0x00 or corrupted instead of the values sent. Also observed bytes 4 & 5 were corrupted in some cases. The D_CAN Data registers are 32 bits and changing from 16 bit writes to 32 bit writes fixes the problem. Testing performed on Altera CycloneV (D_CAN). Requesting tests on other C_CAN & D_CAN platforms. Reported-by:
Richard Andrysek <richard.andrysek@gomtec.de> Signed-off-by:
Thor Thayer <tthayer@opensource.altera.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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- 19 Jun, 2016 8 commits
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David S. Miller authored
Yuval Mintz says: ==================== qed*: Fixes series This series contains several small fixes to driver behavior [4th patch is the only one containing a 'fatal' fix, but the error is only theoretical for qede; if would require another protocol driver yet unsubmitted to reach it]. ==================== Signed-off-by: -
Yuval Mintz authored
The 'MODULE_FIBER' value replaced several other FIBER values in newer management firmware images, so existing code would fail to properly reflect its mode. Signed-off-by:
Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by:
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Yuval Mintz authored
Driver has 2 sets of entries for handling ramrod configurations toward firmware - a regular pre-allocated set of entires and a possible 'unlimited' list of additional pending entries. In most scenarios the 'unlimited' list would not be used, but when it does the handling of the ramrod completion doesn't properly handle the release of the entry. Signed-off-by:
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Yuval Mintz authored
Several user APIs can cause driver to perform an inner-reload. Currently, doing this would cause the HW/FW statistics of the adapter to reset, which isn't the expected behavior [statistics should only reset on explicit unloads]. Signed-off-by:
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Yuval Mintz authored
Internal loopback in driver is based on two things - first is the willingness of transmitter to use it [in case of VFs, this can be forced based on VEPA/VEB] and secondly on another vport classification configuration which should match the packet's destination. Current code allows non-linux VFs to configure a 'promisc' mode on Tx, meaning all traffic sent by VF would be loopbacked internally by firmware; This isn't considered a valid mode and as such should be prevented by PF. Signed-off-by:
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Yuval Mintz authored
When no vlan filter is configured, firmware has a configurable default on whether to pass only untagged packets or all packets regardless of their tagging. Driver currently doesn't set this field in the necessary ramrod, causing the default to always be 'receive all'. Signed-off-by:
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Joshua Houghton authored
Fix coding style issues in the following files: ib_cm.c: add space loop.c: convert spaces to tabs sysctl.c: add space tcp.h: convert spaces to tabs tcp_connect.c:remove extra indentation in switch statement tcp_recv.c: convert spaces to tabs tcp_send.c: convert spaces to tabs transport.c: move brace up one line on for statement Signed-off-by:
Joshua Houghton <josh@awful.name> Acked-by:
Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by:
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Basil Gunn authored
A socket connection made in ax.25 is not closed when session is completed. The heartbeat timer is stopped prematurely and this is where the socket gets closed. Allow heatbeat timer to run to close socket. Symptom occurs in kernels >= 4.2.0 Originally sent 6/15/2016. Resend with distribution list matching scripts/maintainer.pl output. Signed-off-by:
Basil Gunn <basil@pacabunga.com> Signed-off-by:
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- 18 Jun, 2016 7 commits
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Sowmini Varadhan authored
The state of the rds_connection after rds_tcp_reset_callbacks() would be RDS_CONN_RESETTING and this is the value that should be passed by rds_tcp_accept_one() to rds_connect_path_complete() to transition the socket to RDS_CONN_UP. Fixes: b5c21c0947c1 ("RDS: TCP: fix race windows in send-path quiescence by rds_tcp_accept_one()") Signed-off-by:Sowmini Varadhan <sowmini.varadhan@oracle.com> Acked-by:
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Arnd Bergmann authored
The conversion to the 64-bit time based ptp methods left two instances of 'struct timespec' in place. This is harmless because 64-bit architectures define timespec64 as timespec, and this driver is not used on 32-bit machines. However, using 'struct timespec64' directly is obviously the right thing to do, and will help us remove 'struct timespec' in the future. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Fixes: b9acf24f ("ptp: tilegx: convert to the 64 bit get/set time methods.") Acked-by:
Richard Cochran <richardcochran@gmail.com> Signed-off-by:
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David S. Miller authored
Jiri Pirko says: ==================== mlxsw: couple of fixes Couple of slowpath tx stats fixes for Spectrum and SwitchX-2. ==================== Signed-off-by: -
Nogah Frankel authored
Stop the SW TX counter from counting the TX header bytes since they are not being sent out. Fixes: e577516b ("mlxsw: Fix use-after-free bug in mlxsw_sx_port_xmit") Signed-off-by:
Nogah Frankel <nogahf@mellanox.com> Reviewed-by:
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Nogah Frankel authored
Stop the SW TX counter from counting the TX header bytes since they are not being sent out. Fixes: 56ade8fe ("mlxsw: spectrum: Add initial support for Spectrum ASIC") Reviewed-by:
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Jon Paul Maloy authored
We sometimes observe a 'deadly embrace' type deadlock occurring between mutually connected sockets on the same node. This happens when the one-hour peer supervision timers happen to expire simultaneously in both sockets. The scenario is as follows: CPU 1: CPU 2: -------- -------- tipc_sk_timeout(sk1) tipc_sk_timeout(sk2) lock(sk1.slock) lock(sk2.slock) msg_create(probe) msg_create(probe) unlock(sk1.slock) unlock(sk2.slock) tipc_node_xmit_skb() tipc_node_xmit_skb() tipc_node_xmit() tipc_node_xmit() tipc_sk_rcv(sk2) tipc_sk_rcv(sk1) lock(sk2.slock) lock((sk1.slock) filter_rcv() filter_rcv() tipc_sk_proto_rcv() tipc_sk_proto_rcv() msg_create(probe_rsp) msg_create(probe_rsp) tipc_sk_respond() tipc_sk_respond() tipc_node_xmit_skb() tipc_node_xmit_skb() tipc_node_xmit() tipc_node_xmit() tipc_sk_rcv(sk1) tipc_sk_rcv(sk2) lock((sk1.slock) lock((sk2.slock) ===> DEADLOCK ===> DEADLOCK Further analysis reveals that there are three different locations in the socket code where tipc_sk_respond() is called within the context of the socket lock, with ensuing risk of similar deadlocks. We now solve this by passing a buffer queue along with all upcalls where sk_lock.slock may potentially be held. Response or rejected message buffers are accumulated into this queue instead of being sent out directly, and only sent once we know we are safely outside the slock context. Reported-by:GUNA <gbalasun@gmail.com> Acked-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller authored
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for your net tree, they are rather small patches but fixing several outstanding bugs in nf_conntrack and nf_tables, as well as minor problems with missing SYNPROXY header uapi installation: 1) Oneliner not to leak conntrack kmemcache on module removal, this problem was introduced in the previous merge window, patch from Florian Westphal. 2) Two fixes for insufficient ruleset loop validation, one due to incorrect flag check in nf_tables_bind_set() and another related to silly wrong generation mask logic from the walk path, from Liping Zhang. 3) Fix double-free of anonymous sets on error, this fix simplifies the code to let the abort path take care of releasing the set object, also from Liping Zhang. 4) The introduction of helper function for transactions broke the skip inactive rules logic from the nft_do_chain(), again from Liping Zhang. 5) Two patches to install uapi xt_SYNPROXY.h header and calm down kbuild robot due to missing #include <linux/types.h>. ==================== Signed-off-by:
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- 17 Jun, 2016 4 commits
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Pablo Neira Ayuso authored
./usr/include/linux/netfilter/xt_SYNPROXY.h:11: found __[us]{8,16,32,64} type without #include <linux/types.h> Reported-by:kbuild test robot <lkp@intel.com> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org>
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Pablo Neira Ayuso authored
Matt Whitlock says: Without this line, the file xt_SYNPROXY.h does not get installed in /usr/include/linux/netfilter/, and thus user-space programs cannot make use of it. Reported-by:
Matt Whitlock <kernel@mattwhitlock.name> Signed-off-by:
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Jakub Kicinski authored
We were using an incorrect define to get the irq vector number. NFP_NET_CFG_LSC is a control BAR offset, LSC interrupt vector index is called NFP_NET_IRQ_LSC_IDX. For machines with less than 30 CPUs this meant that we were disabling/enabling IRQ 0. For bigger hosts we were just playing with the 31st RX/TX interrupt. Fixes: 0ba40af9 ("nfp: move link state interrupt request/free calls") Signed-off-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
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Simon Horman authored
Since 32b8a8e5 ("sit: add IPv4 over IPv4 support") ipip6_err() may be called for packets whose IP protocol is IPPROTO_IPIP as well as those whose IP protocol is IPPROTO_IPV6. In the case of IPPROTO_IPIP packets the correct protocol value is not passed to ipv4_update_pmtu() or ipv4_redirect(). This patch resolves this problem by using the IP protocol of the packet rather than a hard-coded value. This appears to be consistent with the usage of the protocol of a packet by icmp_socket_deliver() the caller of ipip6_err(). I was able to exercise the redirect case by using a setup where an ICMP redirect was received for the destination of the encapsulated packet. However, it appears that although incorrect the protocol field is not used in this case and thus no problem manifests. On inspection it does not appear that a problem will manifest in the fragmentation needed/update pmtu case either. In short I believe this is a cosmetic fix. None the less, the use of IPPROTO_IPV6 seems wrong and confusing. Reviewed-by:
Dinan Gunawardena <dinan.gunawardena@netronome.com> Signed-off-by:
Simon Horman <simon.horman@netronome.com> Acked-by:
YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by:
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- 16 Jun, 2016 7 commits
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Alexander Duyck authored
The mlx4e driver does not support more than one port for VXLAN offload. As such expecting the hardware to offload other ports is invalid since it appears the parsing logic is used to perform Tx checksum and segmentation offloads. Use the vxlan_port number to determine in which cases we can apply the offload and in which cases we can not. Signed-off-by:
Alexander Duyck <aduyck@mirantis.com> Reviewed-by:
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Arnd Bergmann authored
When building with -Wextra, we get a harmless warning from the EFX_EXTRACT_OWORD32 macro: ethernet/sfc/farch.c: In function 'efx_farch_test_registers': ethernet/sfc/farch.c:119:30: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits] ethernet/sfc/farch.c:124:144: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits] ethernet/sfc/farch.c:124:392: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits] ethernet/sfc/farch.c:124:731: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits] The macro and the caller are both correct, but we can avoid the warning by changing the index variable to a signed type. Signed-off-by:
Bert Kenward <bkenward@solarflare.com> Signed-off-by:
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David S. Miller authored
Hayes Wang says: ==================== r8152: fix known issues These patches fix some known issues. ==================== Signed-off-by: -
hayeswang authored
The rx early size should be (agg_buf_sz - packet size) / 8 Signed-off-by:
Hayes Wang <hayeswang@realtek.com> Signed-off-by:
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hayeswang authored
Reset the BMU to clear the rx/tx fifo. This avoids that the unexpected data remains in the hw. Signed-off-by:
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hayeswang authored
Disable MAC clock speed down. It may casue the first control transfer to contain the wrong data, when the power state change from U1 to U0. Signed-off-by:
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David S. Miller authored
Alexei Starovoitov says: ==================== bpf fixes Fixes for two bpf bugs: 1st bug reported by Sasha Goldshtein here: https://github.com/iovisor/bcc/issues/570 2nd discovered by Daniel Borkmann by manual code analysis. See patches for details. ==================== Signed-off-by:
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