- 21 Feb, 2016 1 commit
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Gerhard Uttenthaler authored
This patch fixes the problem that more CAN messages could be sent to the interface as could be send on the CAN bus. This was more likely for slow baud rates. The sleeping _start_xmit was woken up in the _write_bulk_callback. Under heavy TX load this produced another bulk transfer without checking the free_slots variable and hence caused the overflow in the interface. Signed-off-by:
Gerhard Uttenthaler <uttenthaler@ems-wuensche.com> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by:
Marc Kleine-Budde <mkl@pengutronix.de>
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- 20 Feb, 2016 7 commits
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Jaedon Shin authored
The PHY link state is not chaged in GENETv2 caused by the previous commit 49f7a471 ("net: bcmgenet: Properly configure PHY to ignore interrupt") was set to PHY_IGNORE_INTERRUPT in bcmgenet_mii_probe(). The internal PHY should use phy_mac_interrupt() when not in use PHY_POLL. The statement for phy_mac_interrupt() has two conditions. The first condition to check GENET_HAS_MDIO_INTR is not related PHY link state, so this patch removes it. Fixes: 49f7a471 ("net: bcmgenet: Properly configure PHY to ignore interrupt") Signed-off-by:
Jaedon Shin <jaedon.shin@gmail.com> Acked-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Rainer Weikusat authored
The unix_stream_read_generic function tries to use a continue statement to restart the receive loop after waiting for a message. This may not work as intended as the caller might use a recvmsg call to peek at control messages without specifying a message buffer. If this was the case, the continue will cause the function to return without an error and without the credential information if the function had to wait for a message while it had returned with the credentials otherwise. Change to using goto to restart the loop without checking the condition first in this case so that credentials are returned either way. Signed-off-by:
Rainer Weikusat <rweikusat@mobileactivedefense.com> Acked-by:
Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by:
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Dmitry V. Levin authored
The value passed by unix_diag_get_exact to unix_lookup_by_ino has type __u32, but unix_lookup_by_ino's argument ino has type int, which is not a problem yet. However, when ino is compared with sock_i_ino return value of type unsigned long, ino is sign extended to signed long, and this results to incorrect comparison on 64-bit architectures for inode numbers greater than INT_MAX. This bug was found by strace test suite. Fixes: 5d3cae8b ("unix_diag: Dumping exact socket core") Signed-off-by:
Dmitry V. Levin <ldv@altlinux.org> Acked-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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David S. Miller authored
Michael Chan says: ==================== bnxt_en: Phy related fixes. 3 small patches to fix PHY related code. ==================== Signed-off-by: -
Michael Chan authored
If we fail to update the PHY, we should print a warning and continue. The current code to exit is buggy as it has not freed up the NIC resources yet. Signed-off-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
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Michael Chan authored
Fix bnxt_update_phy_setting() to check the correct parameters when determining whether to update the PHY. Requested line speed/duplex should only be checked for forced speed mode. This avoids unnecessary link interruptions when loading the driver. Signed-off-by:
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Michael Chan authored
When shutting down the NIC, we shutdown async event processing before freeing all the rings. If there is a link change event during reset, the driver may miss it and the link state may be incorrect after the NIC is re-opened. Poll the link at the end of __bnxt_open_nic() to get the correct link status. Signed-off-by Michael Chan <michael.chan@broadcom.com> Signed-off-by:
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- 19 Feb, 2016 8 commits
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Paul Bolle authored
The purpose of gigaset_device_release() is to kfree() the struct ser_cardstate that contains our struct device. This is done via a bit of a detour. First we make our struct device's driver_data point to the container of our struct ser_cardstate (which is a struct cardstate). In gigaset_device_release() we then retrieve that driver_data again. And after that we finally kfree() the struct ser_cardstate that was saved in the struct cardstate. All of this can be achieved much easier by using container_of() to get from our struct device to its container, struct ser_cardstate. Do so. Note that at the time the detour was implemented commit b8b2c7d8 ("base/platform: assert that dev_pm_domain callbacks are called unconditionally") had just entered the tree. That commit disconnected our platform_device and our platform_driver. These were reconnected again in v4.5-rc2 through commit 25cad69f ("base/platform: Fix platform drivers with no probe callback"). And one of the consequences of that fix was that it broke the detour via driver_data. That's because it made __device_release_driver() stop being a NOP for our struct device and actually do stuff again. One of the things it now does, is setting our driver_data to NULL. That, in turn, makes it impossible for gigaset_device_release() to get to our struct cardstate. Which has the net effect of leaking a struct ser_cardstate at every call of this driver's tty close() operation. So using container_of() has the additional benefit of actually working. Reported-by:
Dmitry Vyukov <dvyukov@google.com> Tested-by:
Paul Bolle <pebolle@tiscali.nl> Acked-by:
Tilman Schmidt <tilman@imap.cc> Signed-off-by:
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David S. Miller authored
Merge tag 'wireless-drivers-for-davem-2016-02-18' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers Kalle Valo says: ==================== rtlwifi * fix broken VHT (802.11ac) support, reported by Linus wlcore * fix firmware initialisation regression on wl1271 iwlwifi * fix a race that users reported when we try to load the firmware and the hardware rfkill interrupt triggers at the same time * fix a very visible bug in scheduled scan: the firmware doesn't support scheduled scan with no profile configured and the supplicant sometimes requests such scheduled scans * build system fix to be able to link iwlwifi statically into kernel * firmware name update for 8265 * typo fix in return value ==================== Signed-off-by:
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Steve Wise authored
The vpd strings are left justified, in a fixed length array, with possible trailing white space and no NUL. So fix them up before calling kstrto*(). This is a recent regression which causes cxgb3 to fail to load. Fixes: e72c932d ("cxgb3: Convert simple_strtoul to kstrtox") Signed-off-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
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Paolo Abeni authored
the commit 35e2d115 ("tunnels: Allow IPv6 UDP checksums to be correctly controlled.") changed the default xmit checksum setting for lwt vxlan/geneve ipv6 tunnels, so that now the checksum is not set into external UDP header. This commit changes the rx checksum setting for both lwt vxlan/geneve devices created by openvswitch accordingly, so that lwt over ipv6 tunnel pairs are again able to communicate with default values. Signed-off-by:
Paolo Abeni <pabeni@redhat.com> Acked-by:
Jiri Benc <jbenc@redhat.com> Acked-by:
Jesse Gross <jesse@kernel.org> Signed-off-by:
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Insu Yun authored
tipc_bcast_unlock need to be unlocked in error path. Signed-off-by:
Insu Yun <wuninsu@gmail.com> Signed-off-by:
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git://git.open-mesh.org/linux-mergeDavid S. Miller authored
Antonio Quartulli says: ==================== Two of the fixes included in this patchset prevent wrong memory access - it was triggered when removing an object from a list after it was already free'd due to bad reference counting. This misbehaviour existed for both the gw_node and the orig_node_vlan object and has been fixed by Sven Eckelmann. The last patch fixes our interface feasibility check and prevents it from looping indefinitely when two net_device objects reference each other via iflink index (i.e. veth pair), by Andrew Lunn ==================== Signed-off-by: -
Anton Protopopov authored
An error response from a RTM_GETNETCONF request can return the positive error value EINVAL in the struct nlmsgerr that can mislead userspace. Signed-off-by:
Anton Protopopov <a.s.protopopov@gmail.com> Acked-by:
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Nikolay Aleksandrov authored
When I used netdev_for_each_lower_dev in commit bad53162 ("vrf: remove slave queue and private slave struct") I thought that it acts like netdev_for_each_lower_private and can be used to remove the current device from the list while walking, but unfortunately it acts more like netdev_for_each_lower_private_rcu and doesn't allow it. The difference is where the "iter" points to, right now it points to the current element and that makes it impossible to remove it. Change the logic to be similar to netdev_for_each_lower_private and make it point to the "next" element so we can safely delete the current one. VRF is the only such user right now, there's no change for the read-only users. Here's what can happen now: [98423.249858] general protection fault: 0000 [#1] SMP [98423.250175] Modules linked in: vrf bridge(O) stp llc nfsd auth_rpcgss oid_registry nfs_acl nfs lockd grace sunrpc crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel jitterentropy_rng sha256_generic hmac drbg ppdev aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd evdev serio_raw pcspkr virtio_balloon parport_pc parport i2c_piix4 i2c_core virtio_console acpi_cpufreq button 9pnet_virtio 9p 9pnet fscache ipv6 autofs4 ext4 crc16 mbcache jbd2 sg virtio_blk virtio_net sr_mod cdrom e1000 ata_generic ehci_pci uhci_hcd ehci_hcd usbcore usb_common virtio_pci ata_piix libata floppy virtio_ring virtio scsi_mod [last unloaded: bridge] [98423.255040] CPU: 1 PID: 14173 Comm: ip Tainted: G O 4.5.0-rc2+ #81 [98423.255386] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150318_183358- 04/01/2014 [98423.255777] task: ffff8800547f5540 ti: ffff88003428c000 task.ti: ffff88003428c000 [98423.256123] RIP: 0010:[<ffffffff81514f3e>] [<ffffffff81514f3e>] netdev_lower_get_next+0x1e/0x30 [98423.256534] RSP: 0018:ffff88003428f940 EFLAGS: 00010207 [98423.256766] RAX: 0002000100000004 RBX: ffff880054ff9000 RCX: 0000000000000000 [98423.257039] RDX: ffff88003428f8b8 RSI: ffff88003428f950 RDI: ffff880054ff90c0 [98423.257287] RBP: ffff88003428f940 R08: 0000000000000000 R09: 0000000000000000 [98423.257537] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88003428f9e0 [98423.257802] R13: ffff880054a5fd00 R14: ffff88003428f970 R15: 0000000000000001 [98423.258055] FS: 00007f3d76881700(0000) GS:ffff88005d000000(0000) knlGS:0000000000000000 [98423.258418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [98423.258650] CR2: 00007ffe5951ffa8 CR3: 0000000052077000 CR4: 00000000000406e0 [98423.258902] Stack: [98423.259075] ffff88003428f960 ffffffffa0442636 0002000100000004 ffff880054ff9000 [98423.259647] ffff88003428f9b0 ffffffff81518205 ffff880054ff9000 ffff88003428f978 [98423.260208] ffff88003428f978 ffff88003428f9e0 ffff88003428f9e0 ffff880035b35f00 [98423.260739] Call Trace: [98423.260920] [<ffffffffa0442636>] vrf_dev_uninit+0x76/0xa0 [vrf] [98423.261156] [<ffffffff81518205>] rollback_registered_many+0x205/0x390 [98423.261401] [<ffffffff815183ec>] unregister_netdevice_many+0x1c/0x70 [98423.261641] [<ffffffff8153223c>] rtnl_delete_link+0x3c/0x50 [98423.271557] [<ffffffff815335bb>] rtnl_dellink+0xcb/0x1d0 [98423.271800] [<ffffffff811cd7da>] ? __inc_zone_state+0x4a/0x90 [98423.272049] [<ffffffff815337b4>] rtnetlink_rcv_msg+0x84/0x200 [98423.272279] [<ffffffff810cfe7d>] ? trace_hardirqs_on+0xd/0x10 [98423.272513] [<ffffffff8153370b>] ? rtnetlink_rcv+0x1b/0x40 [98423.272755] [<ffffffff81533730>] ? rtnetlink_rcv+0x40/0x40 [98423.272983] [<ffffffff8155d6e7>] netlink_rcv_skb+0x97/0xb0 [98423.273209] [<ffffffff8153371a>] rtnetlink_rcv+0x2a/0x40 [98423.273476] [<ffffffff8155ce8b>] netlink_unicast+0x11b/0x1a0 [98423.273710] [<ffffffff8155d2f1>] netlink_sendmsg+0x3e1/0x610 [98423.273947] [<ffffffff814fbc98>] sock_sendmsg+0x38/0x70 [98423.274175] [<ffffffff814fc253>] ___sys_sendmsg+0x2e3/0x2f0 [98423.274416] [<ffffffff810d841e>] ? do_raw_spin_unlock+0xbe/0x140 [98423.274658] [<ffffffff811e1bec>] ? handle_mm_fault+0x26c/0x2210 [98423.274894] [<ffffffff811e19cd>] ? handle_mm_fault+0x4d/0x2210 [98423.275130] [<ffffffff81269611>] ? __fget_light+0x91/0xb0 [98423.275365] [<ffffffff814fcd42>] __sys_sendmsg+0x42/0x80 [98423.275595] [<ffffffff814fcd92>] SyS_sendmsg+0x12/0x20 [98423.275827] [<ffffffff81611bb6>] entry_SYSCALL_64_fastpath+0x16/0x7a [98423.276073] Code: c3 31 c0 5d c3 0f 1f 84 00 00 00 00 00 66 66 66 66 90 48 8b 06 55 48 81 c7 c0 00 00 00 48 89 e5 48 8b 00 48 39 f8 74 09 48 89 06 <48> 8b 40 e8 5d c3 31 c0 5d c3 0f 1f 84 00 00 00 00 00 66 66 66 [98423.279639] RIP [<ffffffff81514f3e>] netdev_lower_get_next+0x1e/0x30 [98423.279920] RSP <ffff88003428f940> CC: David Ahern <dsa@cumulusnetworks.com> CC: David S. Miller <davem@davemloft.net> CC: Roopa Prabhu <roopa@cumulusnetworks.com> CC: Vlad Yasevich <vyasevic@redhat.com> Fixes: bad53162 ("vrf: remove slave queue and private slave struct") Signed-off-by:
Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Reviewed-by:
David Ahern <dsa@cumulusnetworks.com> Tested-by:
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- 18 Feb, 2016 24 commits
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Arnd Bergmann authored
This avoids a harmless randconfig warning I get when USB_NET_CDC_SUBSET is enabled, but all of the more specific drivers are not: drivers/net/usb/cdc_subset.c:241:2: #warning You need to configure some hardware for this driver The current behavior is clearly intentional, giving a warning when a user picks a configuration that won't do anything good. The only reason for even addressing this is that I'm getting close to eliminating all 'randconfig' warnings on ARM, and this came up a couple of times. My workaround is to not even build the module when none of the configurations are enable. Alternatively we could simply remove the #warning (nothing wrong for compile-testing), turn it into a runtime warning, or change the Kconfig options into a menu to hide CONFIG_USB_NET_CDC_SUBSET. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Jiri Benc authored
In metadata mode, the vxlan interface is not supposed to use the fdb control plane but an external one (openvswitch or static routes). With the current code, packets may leak into the fdb handling code which usually causes them to be dropped anyway but may have strange side effects. Just drop the packets directly when in metadata mode if the destination data are not correctly provided on egress. Signed-off-by:
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Anton Protopopov authored
A return value of the bchannel_get_rxbuf() function is compared with the positive ENOMEM value instead of the negative -ENOMEM value to detect a memory allocation problem. Thus, after a possible memory allocation failure the bc->bch.rx_skb will be NULL which will lead to a NULL pointer dereference. Signed-off-by:
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Anton Protopopov authored
The cfrfml_receive() function might return positive value EPROTO Signed-off-by:
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Anton Protopopov authored
The atalk_sendmsg() function might return wrong value ENETUNREACH instead of -ENETUNREACH. Signed-off-by:
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Amitoj Kaur Chawla authored
Failure of kzalloc should cause the enclosing function to return -ENOMEM, not -ENODEV. Additionally, removed the following checkpatch warnings: ERROR: spaces required around that '==' (ctx:VxV) ERROR: space required before the open parenthesis '(' CHECK: Comparison to NULL could be written "!lp" Signed-off-by:Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by:
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Phil Sutter authored
My implementation around IFF_NO_QUEUE driver flag assumed that leaving tx_queue_len untouched (specifically: not setting it to zero) by drivers would make it possible to assign a regular qdisc to them without having to worry about setting tx_queue_len to a useful value. This was only partially true: I overlooked that some drivers don't call ether_setup() and therefore not initialize tx_queue_len to the default value of 1000. Consequently, removing the workarounds in place for that case in qdisc implementations which cared about it (namely, pfifo, bfifo, gred, htb, plug and sfb) leads to problems with these specific interface types and qdiscs. Luckily, there's already a sanitization point for drivers setting tx_queue_len to zero, which can be reused to assign the fallback value most qdisc implementations used, which is 1. Fixes: 348e3435 ("net: sched: drop all special handling of tx_queue_len == 0") Tested-by:
Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by:
Phil Sutter <phil@nwl.cc> Signed-off-by:
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Jiri Benc authored
ether_setup sets IFF_TX_SKB_SHARING but this is not supported by gre as it modifies the skb on xmit. Also, clean up whitespace in ipgre_tap_setup when we're already touching it. Signed-off-by:
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Jiri Benc authored
ether_setup sets IFF_TX_SKB_SHARING but this is not supported by geneve as it modifies the skb on xmit. Signed-off-by:
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Jiri Benc authored
ether_setup sets IFF_TX_SKB_SHARING but this is not supported by vxlan as it modifies the skb on xmit. Signed-off-by:
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David Wragg authored
Calculate the maximum MTU taking into account the size of headers involved in GENEVE encapsulation, as for other tunnel types. Changes in v3: - Correct comment style Changes in v2: - Conform more closely to ip_tunnel_change_mtu - Exclude GENEVE options from max MTU calculation Signed-off-by:
David Wragg <david@weave.works> Acked-by:
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Eric Dumazet authored
Ilya reported following lockdep splat: kernel: ========================= kernel: [ BUG: held lock freed! ] kernel: 4.5.0-rc1-ceph-00026-g5e0a311 #1 Not tainted kernel: ------------------------- kernel: swapper/5/0 is freeing memory ffff880035c9d200-ffff880035c9dbff, with a lock still held there! kernel: (&(&queue->rskq_lock)->rlock){+.-...}, at: [<ffffffff816f6a88>] inet_csk_reqsk_queue_add+0x28/0xa0 kernel: 4 locks held by swapper/5/0: kernel: #0: (rcu_read_lock){......}, at: [<ffffffff8169ef6b>] netif_receive_skb_internal+0x4b/0x1f0 kernel: #1: (rcu_read_lock){......}, at: [<ffffffff816e977f>] ip_local_deliver_finish+0x3f/0x380 kernel: #2: (slock-AF_INET){+.-...}, at: [<ffffffff81685ffb>] sk_clone_lock+0x19b/0x440 kernel: #3: (&(&queue->rskq_lock)->rlock){+.-...}, at: [<ffffffff816f6a88>] inet_csk_reqsk_queue_add+0x28/0xa0 To properly fix this issue, inet_csk_reqsk_queue_add() needs to return to its callers if the child as been queued into accept queue. We also need to make sure listener is still there before calling sk->sk_data_ready(), by holding a reference on it, since the reference carried by the child can disappear as soon as the child is put on accept queue. Reported-by:Ilya Dryomov <idryomov@gmail.com> Fixes: ebb516af ("tcp/dccp: fix race at listener dismantle phase") Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Xin Long authored
Since the gc of ipv4 route was removed, the route cached would has no chance to be removed, and even it has been timeout, it still could be used, cause no code to check it's expires. Fix this issue by checking and removing route cache when we get route. Signed-off-by:
Xin Long <lucien.xin@gmail.com> Acked-by:
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Jamal Hadi Salim authored
actions could change the etherproto in particular with ethernet tunnelled data. Typically such actions, after peeling the outer header, will ask for the packet to be reclassified. We then need to restart the classification with the new proto header. Example setup used to catch this: sudo tc qdisc add dev $ETH ingress sudo $TC filter add dev $ETH parent ffff: pref 1 protocol 802.1Q \ u32 match u32 0 0 flowid 1:1 \ action vlan pop reclassify Fixes: 3b3ae880 ("net: sched: consolidate tc_classify{,_compat}") Signed-off-by:
Jamal Hadi Salim <jhs@mojatatu.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
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David S. Miller authored
Jiri Pirko says: ==================== mlxsw fixes Another bulk of fixes from Ido. ==================== Signed-off-by: -
Ido Schimmel authored
When PVID is toggled off on a port member in a VLAN filtering bridge or the PVID VLAN is deleted, make the port drop untagged packets. Reverse the operation when PVID is toggled back on. Set the PVID back to the default (1), when leaving the bridge so that untagged traffic will be directed to the CPU. Fixes: 56ade8fe ("mlxsw: spectrum: Add initial support for Spectrum ASIC") Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
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Ido Schimmel authored
When VLAN filtering is enabled on a bridge and PVID is deleted from a bridge port, then untagged frames are not allowed to ingress into the bridge from this port. Add the Switch Port Acceptable Frame Types (SPAFT) register, which configures the frame admittance of the port. Fixes: 56ade8fe ("mlxsw: spectrum: Add initial support for Spectrum ASIC") Signed-off-by:
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Insu Yun authored
For error handling, dma_alloc_coherent's return value needs to be checked, not argument. Signed-off-by:
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David S. Miller authored
Sunil Goutham says: ==================== net: thunderx: Miscellaneous fixes This patch series fixes couple of issues w.r.t multiqset mode and receive packet statastics. ==================== Signed-off-by: -
Sunil Goutham authored
Counting rx packets for every CQE_RX in CQ irq handler is incorrect. Synchronization is missing when multiple queues are receiving packets simultaneously. Like transmit packet stats use HW stats here. Also removed unused 'cqe_type' parameter in nicvf_rcv_pkt_handler(). Signed-off-by:
Sunil Goutham <sgoutham@cavium.com> Signed-off-by:
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Sunil Goutham authored
For secondary Qsets 'hw_tso' is not getting set as probe() returns much earlier. Fixed it by moving silicon revision check. Signed-off-by:
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Sunil Goutham authored
When a interface is assigned morethan 8 queues and the logical interface is toggled i.e down & up, additional queues or qsets are not initialized as secondary qset count is being set to zero while tearing down. Signed-off-by:
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Insu Yun authored
crypto_alloc_hash never returns NULL Signed-off-by:
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Florian Fainelli authored
With commit 0071f56e ("dsa: Register netdev before phy"), we are now trying to free a network device that has been previously registered, and in case of errors, this will make us hit the BUG_ON(dev->reg_state != NETREG_UNREGISTERED) condition. Fix this by adding a missing unregister_netdev() before free_netdev(). Fixes: 0071f56e ("dsa: Register netdev before phy") Signed-off-by:
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