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2016-09-29bpf: allow access into map value arraysJosef Bacik
Suppose you have a map array value that is something like this struct foo { unsigned iter; int array[SOME_CONSTANT]; }; You can easily insert this into an array, but you cannot modify the contents of foo->array[] after the fact. This is because we have no way to verify we won't go off the end of the array at verification time. This patch provides a start for this work. We accomplish this by keeping track of a minimum and maximum value a register could be while we're checking the code. Then at the time we try to do an access into a MAP_VALUE we verify that the maximum offset into that region is a valid access into that memory region. So in practice, code such as this unsigned index = 0; if (foo->iter >= SOME_CONSTANT) foo->iter = index; else index = foo->iter++; foo->array[index] = bar; would be allowed, as we can verify that index will always be between 0 and SOME_CONSTANT-1. If you wish to use signed values you'll have to have an extra check to make sure the index isn't less than 0, or do something like index %= SOME_CONSTANT. Signed-off-by: Josef Bacik <jbacik@fb.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-29net: do not export sk_stream_write_spaceEric Dumazet
Since commit 900f65d361d3 ("tcp: move duplicate code from tcp_v4_init_sock()/tcp_v6_init_sock()") we no longer need to export sk_stream_write_space() From: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28tcp: Change txhash on every SYN and RTO retransmitLawrence Brakmo
The current code changes txhash (flowlables) on every retransmitted SYN/ACK, but only after the 2nd retransmitted SYN and only after tcp_retries1 RTO retransmits. With this patch: 1) txhash is changed with every SYN retransmits 2) txhash is changed with every RTO. The result is that we can start re-routing around failed (or very congested paths) as soon as possible. Otherwise application health checks may fail and the connection may be terminated before we start to change txhash. v4: Removed sysctl, txhash is changed for all RTOs v3: Removed text saying default value of sysctl is 0 (it is 100) v2: Added sysctl documentation and cleaned code Tested with packetdrill tests Signed-off-by: Lawrence Brakmo <brakmo@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28net/sched: pkt_cls: change tc actions order to be as the user setsHadar Hen Zion
Currently the created tc actions list is reversed against the order set by the user. Change the actions list order to be the same as was set by the user. This patch doesn't affect dump actions behavior. For dumping, action->order parameter is used so the list order doesn't matter. Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28sh_eth: add R8A7743/5 supportSergei Shtylyov
Add support for the first two members of the Renesas RZ/G family, RZ/G1M/E (also known as R8A7743/5). The Ether core is the same as in the R-Car gen2 SoCs, so will share the code/data with them... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28Merge branch 'fib-offload-notifications'David S. Miller
Jiri Pirko says: ==================== fib offload: switch to notifier The goal of this patchset is to allow driver to propagate all prefixes configured in kernel down HW. This is necessary for routing to work as expected. If we don't do that HW might forward prefixes known to kernel incorrectly. Take an example when default route is set in switch HW and there is an IP address set on a management (non-switch) port. Currently, only FIB entries related to the switch port netdev are offloaded using switchdev ops. This model is not extendable so the first patch introduces a replacement: notifier to propagate FIB entry additions and removals to whoever is interested. The second patch introduces couple of helpers to deal with RTNH_F_OFFLOAD flags. Currently it is set in switchdev core. There the assumption is that only one offload device exists. But for FIB notifier, we assume multiple offload devices. So the patch introduces a per FIB entry reference counter and helpers use it in order to achieve this: 0 means RTNH_F_OFFLOAD is not set, no device offloads this entry n means RTNH_F_OFFLOAD is set and the entry is offloaded by n devices Patches 3 and 4 convert mlxsw and rocker to adopt this new way, registering one notifier block for each asic instance. Both of these patches also implement internal "abort" mechanism. Using switchdev ops, "abort" is called by switchdev core whenever there is an error during FIB entry add offload. This leads to removal of all offloaded entries on system by fib_trie code. Now the new notifier assumes the driver takes care of the abort action. Here's why: 1) The fact that one HW cannot offload an entry does not mean that the others can't do it. So let only one entity to abort and leave the rest to work happily. 2) The driver knows what to in order to properly abort. For example, currently abort is broken for mlxsw, as for Spectrum there is a need to set 0.0.0.0/0 trap in RALUE register. The fifth patch removes the old, no longer used FIB offload infrastructure. The last patch reflects the changes into switchdev documentation file. --- v2->v3: -patch 3/6 -fixed offload inc/dec to be done in fib4_entry_init/fini and only in case !trap as suggested by Ido v1->v2: -patch 3/6: -fixed lpm tree setup and binding for abort and pointed out by Ido -do nexthop checks as suggested by Ido -fix use after free during abort -patch 6/6: -fixed texts as suggested by Ido ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28doc: update switchdev L3 sectionJiri Pirko
This is to reflect the change of FIB offload infrastructure from switchdev objects to FIB notifier. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28switchdev: remove FIB offload infrastructureJiri Pirko
Since this is now taken care of by FIB notifier, remove the code, with all unused dependencies. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28rocker: use FIB notifications instead of switchdev callsJiri Pirko
Until now, in order to offload a FIB entry to HW we use switchdev op. Use the newly introduced FIB notifier infrasturucture to process FIB entries to offload the in HW. Abort mechanism is now handled within the rocker driver. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28mlxsw: spectrum_router: Use FIB notifications instead of switchdev callsJiri Pirko
Until now, in order to offload a FIB entry to HW we use switchdev op. However that has limits. Mainly in case we need to make the HW aware of all route prefixes configured in kernel. HW needs to know those in order to properly trap appropriate packets and pass the to kernel to do the forwarding. Abort mechanism is now handled within the mlxsw driver. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28fib: introduce FIB info offload flag helpersJiri Pirko
These helpers are to be used in case someone offloads the FIB entry. The result is that if the entry is offloaded to at least one device, the offload flag is set. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28fib: introduce FIB notification infrastructureJiri Pirko
This allows to pass information about added/deleted FIB entries/rules to whoever is interested. This is done in a very similar way as devinet notifies address additions/removals. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28net/sched: cls_flower: Use a proper mask value for enc key id parameterHadar Hen Zion
The current code use the encapsulation key id value as the mask of that parameter which is wrong. Fix that by using a full mask. Fixes: bc3103f1ed40 ('net/sched: cls_flower: Classify packet in ip tunnels') Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Acked-by: Amir Vadai <amir@vadai.me> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28Merge branch '1GbE' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Jeff Kirsher says: ==================== 1GbE Intel Wired LAN Driver Updates 2016-09-27 This series contains updates to igb and igbvf. Wei Yongjun makes a function static to shut up sparse. Todd bumps the igb and igbvf version, which is long overdue. Jake fixes an issue where the PPS SYS_WRAP interrupt was not re-enabled after a reset, which resulted in disabling of the PPS signaling. v2: dropped patch 5 of the original series, since the PCI quirk patch needs to be reworked by Alex and Sasha to address issues that Bjorn Helgaas and Alex Williamson brought up. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28lib: clean up put_cpu_var usageShaohua Li
put_cpu_var takes the percpu data, not the data returned from get_cpu_var. This doesn't change the behavior. Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Shaohua Li <shli@fb.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28bpf: clean up put_cpu_var usageShaohua Li
put_cpu_var takes the percpu data, not the data returned from get_cpu_var. This doesn't change the behavior. Cc: Tejun Heo <tj@kernel.org> Cc: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Shaohua Li <shli@fb.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-28igb: restore PPS signal on igb_ptp_resetJacob Keller
When a reset occurs, the PPS SYS_WRAP interrupt was not re-enabled which resulted in disabling of the PPS signaling. Fix this by recording when the interrupt is on and ensuring that we re-enable it every time we reset. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-28igb: bump version to igb-5.4.0Todd Fujinaka
Bump igb version to match other igb drivers. Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-28igbvf: bump version to igbvf-2.4.0Todd Fujinaka
Bump version to match other igbvf drivers. Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-28igb: fix non static symbol warningWei Yongjun
Fixes the following sparse warning: drivers/net/ethernet/intel/igb/igb_ethtool.c:2707:5: warning: symbol 'igb_rxnfc_write_vlan_prio_filter' was not declared. Should it be static? Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-27bnx2x: free the mac filter group list before freeing the cmdjbaron@akamai.com
The group list must be freed prior to freeing the command otherwise we have a use-after-free. Signed-off-by: Jason Baron <jbaron@akamai.com> Cc: Yuval Mintz <Yuval.Mintz@qlogic.com> Cc: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27Merge branch 'mediatek-pdam-lro-fixes'David S. Miller
Nelson Chang says: ==================== net: ethernet: mediatek: some bug fixes for PDAM and HW LRO 1) Add to stop PDMA while stopping the frame engine 2) Modify the register settings for LRO relinquishments 3) Jump out from the waiting loop while LRO relinquishments are done ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27net: ethernet: mediatek: bug fix to disable HW LRONelson Chang
(1) Modify the register settings for LRO relinquishments (2) Jump out from the waiting loop while LRO relinquishments are done Signed-off-by: Nelson Chang <nelson.chang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27net: ethernet: mediatek: add to stop PDMA while stopping the frame engineNelson Chang
Stop PDMA while the frame engine is going to stop. Signed-off-by: Nelson Chang <nelson.chang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27Merge branch 'bcmgenet-phydev-revert'David S. Miller
Philippe Reynes says: ==================== net: bcmgenet: only use new api ethtool_{get|set}_link_ksettings Some times ago, a serie of patches were committed : - commit 62469c76007e ("net: ethernet: bcmgenet: use phydev from struct net_device") - commit 6b352ebccbcf ("net: ethernet: broadcom: bcmgenet: use new api ethtool_{get|set}_link_ksettings") The first patch add a regression on this driver, so it should be reverted. As the second patch depend on the former, it should be reverted too. The first patch is buggy because there is a "trick" in this driver. The structure phydev is kept in the private data when the interface go down, and used when the interface go up to enable the phy before the function phy_connect is called. I don't have this hardware, neither the datasheet. So I won't update the driver to avoid this trick. But the real goal of the first serie was to move to the new api ethtool_{get|set}_link_ksettings. So I provide a new version of the patch without the "cleaning" of driver to use the phydev store in the net_device structure. Changelog: v3: - use priv instead of dev (so all the code use the same phydev) v2: - use Florian Fainelli patches for the revert instead of Jaedon Shin - simply use net: bcmgenet: for the prefix of the patch ==================== Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27net: bcmgenet: use new api ethtool_{get|set}_link_ksettingsPhilippe Reynes
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27Revert "net: ethernet: bcmgenet: use phydev from struct net_device"Florian Fainelli
This reverts commit 62469c76007e ("net: ethernet: bcmgenet: use phydev from struct net_device") because it causes GENETv1/2/3 adapters to expose the following behavior after an ifconfig down/up sequence: PING fainelli-linux (10.112.156.244): 56 data bytes 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.352 ms 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.472 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.496 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.517 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.536 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=1.557 ms (DUP!) 64 bytes from 10.112.156.244: seq=1 ttl=61 time=752.448 ms (DUP!) This was previously fixed by commit 5dbebbb44a6a ("net: bcmgenet: Software reset EPHY after power on") but the commit we are reverting was essentially making this previous commit void, here is why. Without commit 62469c76007e we would have the following scenario after an ifconfig down then up sequence: - bcmgenet_open() calls bcmgenet_power_up() to make sure the PHY is initialized *before* we get to initialize the UniMAC, this is critical to ensure the PHY is in a correct state, priv->phydev is valid, this code executes fine - second time from bcmgenet_mii_probe(), through the normal phy_init_hw() call (which arguably could be optimized out) Everything is fine in that case. With commit 62469c76007e, we would have the following scenario to happen after an ifconfig down then up sequence: - bcmgenet_close() calls phy_disonnect() which makes dev->phydev become NULL - when bcmgenet_open() executes again and calls bcmgenet_mii_reset() from bcmgenet_power_up() to initialize the internal PHY, the NULL check becomes true, so we do not reset the PHY, yet we keep going on and initialize the UniMAC, causing MAC activity to occur - we call bcmgenet_mii_reset() from bcmgenet_mii_probe(), but this is too late, the PHY is botched, and causes the above bogus pings/packets transmission/reception to occur Reported-by: Jaedon Shin <jaedon.shin@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27Revert "net: ethernet: bcmgenet: use new api ethtool_{get|set}_link_ksettings"Philippe Reynes
This reverts commit 6b352ebccbcf ("net: ethernet: broadcom: bcmgenet: use new api ethtool_{get|set}_link_ksettings"). We needs to revert the commit 62469c76007e ("net: ethernet: bcmgenet: use phydev from struct net_device"), because this commit add a regression. As the commit 6b352ebccbcf ("net: ethernet: broadcom: bcmgenet: use new api ethtool_{get|set}_link_ksettings") depend on the first one, we also need to revert it first. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27bpf: Set register type according to is_valid_access()Mickaël Salaün
This prevent future potential pointer leaks when an unprivileged eBPF program will read a pointer value from its context. Even if is_valid_access() returns a pointer type, the eBPF verifier replace it with UNKNOWN_VALUE. The register value that contains a kernel address is then allowed to leak. Moreover, this fix allows unprivileged eBPF programs to use functions with (legitimate) pointer arguments. Not an issue currently since reg_type is only set for PTR_TO_PACKET or PTR_TO_PACKET_END in XDP and TC programs that can only be loaded as privileged. For now, the only unprivileged eBPF program allowed is for socket filtering and all the types from its context are UNKNOWN_VALUE. However, this fix is important for future unprivileged eBPF programs which could use pointers in their context. Signed-off-by: Mickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27bpf samples: update tracex5 sample to use __seccomp_filterNaveen N. Rao
seccomp_phase1() does not exist anymore. Instead, update sample to use __seccomp_filter(). While at it, set max locked memory to unlimited. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27bpf samples: fix compiler errors with sockex2 and sockex3Naveen N. Rao
These samples fail to compile as 'struct flow_keys' conflicts with definition in net/flow_dissector.h. Fix the same by renaming the structure used in the sample. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-27net: tg3: use new api ethtool_{get|set}_link_ksettingsPhilippe Reynes
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Acked-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26Merge branch 'bnx2x-fix-page-allocation-failure'David S. Miller
Jason Baron says: ==================== bnx2x: page allocation failure While configuring ~500 multicast addrs, we ran into high order page allocation failures. They don't need to be high order, and thus I'm proposing to split them into at most PAGE_SIZE allocations. Below is a sample failure. [1201902.617882] bnx2x: [bnx2x_set_mc_list:12374(eth0)]Failed to create multicast MACs list: -12 [1207325.695021] kworker/1:0: page allocation failure: order:2, mode:0xc020 [1207325.702059] CPU: 1 PID: 15805 Comm: kworker/1:0 Tainted: G W [1207325.712940] Hardware name: SYNNEX CORPORATION 1x8-X4i SSD 10GE/S5512LE, BIOS V8.810 05/16/2013 [1207325.722284] Workqueue: events bnx2x_sp_rtnl_task [bnx2x] [1207325.728206] 0000000000000000 ffff88012d873a78 ffffffff8267f7c7 000000000000c020 [1207325.736754] 0000000000000000 ffff88012d873b08 ffffffff8212f8e0 fffffffc00000003 [1207325.745301] ffff88041ffecd80 ffff880400000030 0000000000000002 0000c0206800da13 [1207325.753846] Call Trace: [1207325.756789] [<ffffffff8267f7c7>] dump_stack+0x4d/0x63 [1207325.762426] [<ffffffff8212f8e0>] warn_alloc_failed+0xe0/0x130 [1207325.768756] [<ffffffff8213c898>] ? wakeup_kswapd+0x48/0x140 [1207325.774914] [<ffffffff82132afc>] __alloc_pages_nodemask+0x2bc/0x970 [1207325.781761] [<ffffffff82173691>] alloc_pages_current+0x91/0x100 [1207325.788260] [<ffffffff8212fa1e>] alloc_kmem_pages+0xe/0x10 [1207325.794329] [<ffffffff8214c9c8>] kmalloc_order+0x18/0x50 [1207325.800227] [<ffffffff8214ca26>] kmalloc_order_trace+0x26/0xb0 [1207325.806642] [<ffffffff82451c68>] ? _xfer_secondary_pool+0xa8/0x1a0 [1207325.813404] [<ffffffff8217cfda>] __kmalloc+0x19a/0x1b0 [1207325.819142] [<ffffffffa02fe975>] bnx2x_set_rx_mode_inner+0x3d5/0x590 [bnx2x] [1207325.827000] [<ffffffffa02ff52d>] bnx2x_sp_rtnl_task+0x28d/0x760 [bnx2x] [1207325.834197] [<ffffffff820695d4>] process_one_work+0x134/0x3c0 [1207325.840522] [<ffffffff82069981>] worker_thread+0x121/0x460 [1207325.846585] [<ffffffff82069860>] ? process_one_work+0x3c0/0x3c0 [1207325.853089] [<ffffffff8206f039>] kthread+0xc9/0xe0 [1207325.858459] [<ffffffff82070000>] ? notify_die+0x10/0x40 [1207325.864263] [<ffffffff8206ef70>] ? kthread_create_on_node+0x180/0x180 [1207325.871288] [<ffffffff826852d2>] ret_from_fork+0x42/0x70 [1207325.877183] [<ffffffff8206ef70>] ? kthread_create_on_node+0x180/0x180 v2: -make use of list_next_entry() -only use PAGE_SIZE allocations ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26bnx2x: allocate mac filtering pending list in PAGE_SIZE incrementsJason Baron
Currently, we can have high order page allocations that specify GFP_ATOMIC when configuring multicast MAC address filters. For example, we have seen order 2 page allocation failures with ~500 multicast addresses configured. Convert the allocation for the pending list to be done in PAGE_SIZE increments. Signed-off-by: Jason Baron <jbaron@akamai.com> Cc: Yuval Mintz <Yuval.Mintz@qlogic.com> Cc: Ariel Elior <Ariel.Elior@qlogic.com> Acked-by: Yuval Mintz <Yuval.Mintz@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26bnx2x: allocate mac filtering 'mcast_list' in PAGE_SIZE incrementsJason Baron
Currently, we can have high order page allocations that specify GFP_ATOMIC when configuring multicast MAC address filters. For example, we have seen order 2 page allocation failures with ~500 multicast addresses configured. Convert the allocation for 'mcast_list' to be done in PAGE_SIZE increments. Signed-off-by: Jason Baron <jbaron@akamai.com> Cc: Yuval Mintz <Yuval.Mintz@qlogic.com> Cc: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26nfp: bpf: improve handling for disabled BPF syscallArnd Bergmann
I stumbled over a new warning during randconfig testing, with CONFIG_BPF_SYSCALL disabled: drivers/net/ethernet/netronome/nfp/nfp_net_offload.c: In function 'nfp_net_bpf_offload': drivers/net/ethernet/netronome/nfp/nfp_net_offload.c:263:3: error: '*((void *)&res+4)' may be used uninitialized in this function [-Werror=maybe-uninitialized] drivers/net/ethernet/netronome/nfp/nfp_net_offload.c:263:3: error: 'res.n_instr' may be used uninitialized in this function [-Werror=maybe-uninitialized] As far as I can tell, this is a false positive caused by the compiler getting confused about a function that is partially inlined, but it's easy to avoid while improving the code: The nfp_bpf_jit() stub helper for that configuration is unusual as it is defined in a header file but not marked 'static inline'. By moving the compile-time check into the caller using the IS_ENABLED() macro, we can remove that stub and simplify the nfp_net_bpf_offload_prepare() function enough to unconfuse the compiler. Fixes: 7533fdc0f77f ("nfp: bpf: add hardware bpf offload") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26net: bcmgenet: remove unused function in bcmgenet.cBaoyou Xie
We get 1 warning when building kernel with W=1: drivers/net/ethernet/broadcom/genet/bcmgenet.c:2763:5: warning: no previous prototype for 'bcmgenet_hfb_add_filter' [-Wmissing-prototypes] In fact, this function is implemented in drivers/net/ethernet/broadcom/genet/bcmgenet.c, but be called by no one, thus can be removed. So this patch removes the unused functions. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26cxgb4: mark symbols static where possibleBaoyou Xie
We get 10 warnings when building kernel with W=1: drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c:304:5: warning: no previous prototype for 'cxgb4_dcb_enabled' [-Wmissing-prototypes] drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:194:5: warning: no previous prototype for 'setup_sge_queues_uld' [-Wmissing-prototypes] drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:241:6: warning: no previous prototype for 'free_sge_queues_uld' [-Wmissing-prototypes] drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:268:5: warning: no previous prototype for 'cfg_queues_uld' [-Wmissing-prototypes] drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:344:6: warning: no previous prototype for 'free_queues_uld' [-Wmissing-prototypes] drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:353:5: warning: no previous prototype for 'request_msix_queue_irqs_uld' [-Wmissing-prototypes] drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:379:6: warning: no previous prototype for 'free_msix_queue_irqs_uld' [-Wmissing-prototypes] drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:393:6: warning: no previous prototype for 'name_msix_vecs_uld' [-Wmissing-prototypes] drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:433:6: warning: no previous prototype for 'enable_rx_uld' [-Wmissing-prototypes] drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:442:6: warning: no previous prototype for 'quiesce_rx_uld' [-Wmissing-prototypes] In fact, these functions are only used in the file in which they are declared and don't need a declaration, but can be made static. so this patch marks these functions with 'static'. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26net: mvneta: mark symbols static where possibleBaoyou Xie
We get 2 warnings when building kernel with W=1: drivers/net/ethernet/marvell/mvneta.c:639:27: warning: no previous prototype for 'mvneta_get_stats64' [-Wmissing-prototypes] drivers/net/ethernet/marvell/mvneta.c:3529:5: warning: no previous prototype for 'mvneta_ethtool_set_link_ksettings' [-Wmissing-prototypes] In fact, these two functions are only used in the file in which they are declared and don't need a declaration, but can be made static. so this patch marks these functions with 'static'. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26net: hip04: mark tx_done() staticBaoyou Xie
We get 1 warning when building kernel with W=1: drivers/net/ethernet/hisilicon/hip04_eth.c:603:22: warning: no previous prototype for 'tx_done' [-Wmissing-prototypes] In fact, this function is only used in the file in which it is declared and don't need a declaration, but can be made static. so this patch marks this function with 'static'. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26net: hisilicon: mark symbols static where possibleBaoyou Xie
We get 2 warnings when building kernel with W=1: drivers/net/ethernet/hisilicon/hisi_femac.c:943:5: warning: no previous prototype for 'hisi_femac_drv_suspend' [-Wmissing-prototypes] drivers/net/ethernet/hisilicon/hisi_femac.c:960:5: warning: no previous prototype for 'hisi_femac_drv_resume' [-Wmissing-prototypes] In fact, these two functions are only used in the file in which they are declared and don't need a declaration, but can be made static. so this patch marks these functions with 'static'. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26Merge branch 'for-upstream' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Johan Hedberg says: ==================== pull request: bluetooth-next 2016-09-25 Here are a few more Bluetooth & 802.15.4 patches for the 4.9 kernel that have popped up during the past week: - New USB ID for QCA_ROME Bluetooth device - NULL pointer dereference fix for Bluetooth mgmt sockets - Fixes for BCSP driver - Fix for updating LE scan response Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26net: dsa: mv88e6xxx: fix non static symbol warningsWei Yongjun
Fixes the following sparse warnings: drivers/net/dsa/mv88e6xxx/chip.c:219:5: warning: symbol 'mv88e6xxx_port_read' was not declared. Should it be static? drivers/net/dsa/mv88e6xxx/chip.c:227:5: warning: symbol 'mv88e6xxx_port_write' was not declared. Should it be static? Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26be2net: fix non static symbol warningsWei Yongjun
Fixes the following sparse warnings: drivers/net/ethernet/emulex/benet/be_main.c:47:25: warning: symbol 'be_err_recovery_workq' was not declared. Should it be static? drivers/net/ethernet/emulex/benet/be_main.c:63:25: warning: symbol 'be_wq' was not declared. Should it be static? Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26net: smc91x: take into account register shiftRobert Jarzmik
This aligns smc91x with its cousin, namely smc911x.c. This also allows the driver to run also in a device-tree based lubbock board build, on which it was tested. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26cxgb4: fix -ve error check on a signed iqColin Ian King
iq is unsigned, so the error check for iq < 0 has no effect so errors can slip past this check. Fix this by making iq signed and also get_filter_steerq return a signed int so a -ve error can be returned. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for your net-next tree, they are: 1) Consolidate GRE protocol tracker using new GRE protocol definitions, patches from Gao Feng. 2) Properly parse continuation lines in SIP helper, update allowed characters in Call-ID header and allow tabs in SIP headers as specified by RFC3261, from Marco Angaroni. 3) Remove useless code in FTP conntrack helper, also from Gao Feng. 4) Add number generation expression for nf_tables, with random and incremental generators. This also includes specific offset to add to the result, patches from Laura Garcia Liebana. Liping Zhang follows with a fix to avoid a race in this new expression. 5) Fix new quota expression inversion logic, added in the previous pull request. 6) Missing validation of queue configuration in nft_queue, patch from Liping Zhang. 7) Remove unused ctl_table_path, as part of the deprecation of the ip_conntrack sysctl interface coming in the previous batch. Again from Liping Zhang. 8) Add offset attribute to nft_hash expression, so we can generate any output from a specific base offset. Moreover, check for possible overflow, patches from Laura Garcia. 9) Allow to invert dynamic set insertion from packet path, to check for overflows in case the set is full. 10) Revisit nft_set_pktinfo*() logic from nf_tables to ensure proper initialization of layer 4 protocol. Consolidate pktinfo structure initialization for bridge and netdev families. 11) Do not inconditionally drop IPv6 packets that we cannot parse transport protocol for ip6 and inet families, let the user decide on this via ruleset policy. 12) Get rid of gotos in __nf_ct_try_assign_helper(). 13) Check for return value in register_netdevice_notifier() and nft_register_chain_type(), patches from Gao Feng. 14) Get rid of CONFIG_IP6_NF_IPTABLES dependency in nf_queue infrastructure that is common to nf_tables, from Liping Zhang. 15) Disable 'found' and 'searched' stats that are updates from the packet hotpath, not very useful these days. 16) Validate maximum value of u32 netlink attributes in nf_tables, this introduces nft_parse_u32_check(). From Laura Garcia. 17) Add missing code to integrate nft_queue with maps, patch from Liping Zhang. This also includes missing support ranges in nft_queue bridge family. 18) Fix check in nft_payload_fast_eval() that ensure that we don't go over the skbuff data boundary, from Liping Zhang. 19) Check if transport protocol is set from nf_tables tracing and payload expression. Again from Liping Zhang. 20) Use net_get_random_once() whenever possible, from Gao Feng. 21) Replace hardcoded value by sizeof() in xt_helper, from Gao Feng. 22) Remove superfluous check for found element in nft_lookup. 23) Simplify TCPMSS logic to check for minimum MTU, from Gao Feng. 24) Replace double linked list by single linked list in Netfilter core hook infrastructure, patchset from Aaron Conole. This includes several patches to prepare this update. 25) Fix wrong sequence adjustment of TCP RST with no ACK, from Gao Feng. 26) Relax check for direction attribute in nft_ct for layer 3 and 4 protocol fields, from Liping Zhang. 27) Add new revision for hashlimit to support higher pps of upto 1 million, from Vishwanath Pai. 28) Evict stale entries in nf_conntrack when reading entries from /proc/net/nf_conntrack, from Florian Westphal. 29) Fix transparent match for IPv6 request sockets, from Krisztian Kovacs. 30) Add new range expression for nf_tables. 31) Add missing code to support for flags in nft_log. Expose NF_LOG_* flags via uapi and use it from the generic logging infrastructure, instead of using xt specific definitions, from Liping Zhang. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-25Merge branch 'master' of ↵Pablo Neira Ayuso
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next Conflicts: net/netfilter/core.c net/netfilter/nf_tables_netdev.c Resolve two conflicts before pull request for David's net-next tree: 1) Between c73c24849011 ("netfilter: nf_tables_netdev: remove redundant ip_hdr assignment") from the net tree and commit ddc8b6027ad0 ("netfilter: introduce nft_set_pktinfo_{ipv4, ipv6}_validate()"). 2) Between e8bffe0cf964 ("net: Add _nf_(un)register_hooks symbols") and Aaron Conole's patches to replace list_head with single linked list. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-09-25netfilter: nf_log: get rid of XT_LOG_* macrosLiping Zhang
nf_log is used by both nftables and iptables, so use XT_LOG_XXX macros here is not appropriate. Replace them with NF_LOG_XXX. Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-09-25netfilter: nft_log: complete NFTA_LOG_FLAGS attr supportLiping Zhang
NFTA_LOG_FLAGS attribute is already supported, but the related NF_LOG_XXX flags are not exposed to the userspace. So we cannot explicitly enable log flags to log uid, tcp sequence, ip options and so on, i.e. such rule "nft add rule filter output log uid" is not supported yet. So move NF_LOG_XXX macro definitions to the uapi/../nf_log.h. In order to keep consistent with other modules, change NF_LOG_MASK to refer to all supported log flags. On the other hand, add a new NF_LOG_DEFAULT_MASK to refer to the original default log flags. Finally, if user specify the unsupported log flags or NFTA_LOG_GROUP and NFTA_LOG_FLAGS are set at the same time, report EINVAL to the userspace. Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>