- 23 Jun, 2015 18 commits
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Shreyas Bhatewara authored
Implement a handler for pci shutdown so that the driver has an opportunity to make sure that device is quiesced before the PCI switches to legacy IRQs. This way the possibility of "screaming interrupt" is avoided. Acked-by:
Shrikrishna Khare <skhare@vmware.com> Signed-off-by:
Shreyas N Bhatewara <sbhatewara@vmware.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric W. Biederman authored
Add code to nf_unregister_hook to flush the nf_queue when a hook is unregistered. This guarantees that the pointer that the nf_queue code retains into the nf_hook list will remain valid while a packet is queued. I tested what would happen if we do not flush queued packets and was trivially able to obtain the oops below. All that was required was to stop the nf_queue listening process, to delete all of the nf_tables, and to awaken the nf_queue listening process. > BUG: unable to handle kernel paging request at 0000000100000001 > IP: [<0000000100000001>] 0x100000001 > PGD b9c35067 PUD 0 > Oops: 0010 [#1] SMP > Modules linked in: > CPU: 0 PID: 519 Comm: lt-nfqnl_test Not tainted > task: ffff8800b9c8c050 ti: ffff8800ba9d8000 task.ti: ffff8800ba9d8000 > RIP: 0010:[<0000000100000001>] [<0000000100000001>] 0x100000001 > RSP: 0018:ffff8800ba9dba40 EFLAGS: 00010a16 > RAX: ffff8800bab48a00 RBX: ffff8800ba9dba90 RCX: ffff8800ba9dba90 > RDX: ffff8800b9c10128 RSI: ffff8800ba940900 RDI: ffff8800bab48a00 > RBP: ffff8800b9c10128 R08: ffffffff82976660 R09: ffff8800ba9dbb28 > R10: dead000000100100 R11: dead000000200200 R12: ffff8800ba940900 > R13: ffffffff8313fd50 R14: ffff8800b9c95200 R15: 0000000000000000 > FS: 00007fb91fc34700(0000) GS:ffff8800bfa00000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 0000000100000001 CR3: 00000000babfb000 CR4: 00000000000007f0 > Stack: > ffffffff8206ab0f ffffffff82982240 ffff8800bab48a00 ffff8800b9c100a8 > ffff8800b9c10100 0000000000000001 ffff8800ba940900 ffff8800b9c10128 > ffffffff8206bd65 ffff8800bfb0d5e0 ffff8800bab48a00 0000000000014dc0 > Call Trace: > [<ffffffff8206ab0f>] ? nf_iterate+0x4f/0xa0 > [<ffffffff8206bd65>] ? nf_reinject+0x125/0x190 > [<ffffffff8206dee5>] ? nfqnl_recv_verdict+0x255/0x360 > [<ffffffff81386290>] ? nla_parse+0x80/0xf0 > [<ffffffff8206c42c>] ? nfnetlink_rcv_msg+0x13c/0x240 > [<ffffffff811b2fec>] ? __memcg_kmem_get_cache+0x4c/0x150 > [<ffffffff8206c2f0>] ? nfnl_lock+0x20/0x20 > [<ffffffff82068159>] ? netlink_rcv_skb+0xa9/0xc0 > [<ffffffff820677bf>] ? netlink_unicast+0x12f/0x1c0 > [<ffffffff82067ade>] ? netlink_sendmsg+0x28e/0x650 > [<ffffffff81fdd814>] ? sock_sendmsg+0x44/0x50 > [<ffffffff81fde07b>] ? ___sys_sendmsg+0x2ab/0x2c0 > [<ffffffff810e8f73>] ? __wake_up+0x43/0x70 > [<ffffffff8141a134>] ? tty_write+0x1c4/0x2a0 > [<ffffffff81fde9f4>] ? __sys_sendmsg+0x44/0x80 > [<ffffffff823ff8d7>] ? system_call_fastpath+0x12/0x6a > Code: Bad RIP value. > RIP [<0000000100000001>] 0x100000001 > RSP <ffff8800ba9dba40> > CR2: 0000000100000001 > ---[ end trace 08eb65d42362793f ]--- Cc: stable@vger.kernel.org Signed-off-by:
"Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by:
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Eric W. Biederman authored
Currenlty nf_tables chains added in one network namespace are being run in all network namespace. The issues are myriad with the simplest being an unprivileged user can cause any network packets to be dropped. Address this by simply not running nf_tables chains in the wrong network namespace. Cc: stable@vger.kernel.org Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by:
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Pankaj Gupta authored
Macvtap should be compatible with tuntap for maximum number of queues. commit 'baf71c5c (tuntap: Increase the number of queues in tun.)' removes the limitations and increases number of queues in tuntap. Now, Its safe to increase number of queues in Macvtap as well. This patch also modifies 'macvtap_del_queues' function to avoid extra memory allocation in stack. Changes from v1->v2 : Michael S. Tsirkin, Jason Wang : Better way to use linked list to avoid use of extra memory in stack. Sergei Shtylyov : Specify dependent commit's summary. Signed-off-by:
Pankaj Gupta <pagupta@redhat.com> Signed-off-by:
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Daniel Wagner authored
BPF offers another way to generate latency histograms. We attach kprobes at trace_preempt_off and trace_preempt_on and calculate the time it takes to from seeing the off/on transition. The first array is used to store the start time stamp. The key is the CPU id. The second array stores the log2(time diff). We need to use static allocation here (array and not hash tables). The kprobes hooking into trace_preempt_on|off should not calling any dynamic memory allocation or free path. We need to avoid recursivly getting called. Besides that, it reduces jitter in the measurement. CPU 0 latency : count distribution 1 -> 1 : 0 | | 2 -> 3 : 0 | | 4 -> 7 : 0 | | 8 -> 15 : 0 | | 16 -> 31 : 0 | | 32 -> 63 : 0 | | 64 -> 127 : 0 | | 128 -> 255 : 0 | | 256 -> 511 : 0 | | 512 -> 1023 : 0 | | 1024 -> 2047 : 0 | | 2048 -> 4095 : 166723 |*************************************** | 4096 -> 8191 : 19870 |*** | 8192 -> 16383 : 6324 | | 16384 -> 32767 : 1098 | | 32768 -> 65535 : 190 | | 65536 -> 131071 : 179 | | 131072 -> 262143 : 18 | | 262144 -> 524287 : 4 | | 524288 -> 1048575 : 1363 | | CPU 1 latency : count distribution 1 -> 1 : 0 | | 2 -> 3 : 0 | | 4 -> 7 : 0 | | 8 -> 15 : 0 | | 16 -> 31 : 0 | | 32 -> 63 : 0 | | 64 -> 127 : 0 | | 128 -> 255 : 0 | | 256 -> 511 : 0 | | 512 -> 1023 : 0 | | 1024 -> 2047 : 0 | | 2048 -> 4095 : 114042 |*************************************** | 4096 -> 8191 : 9587 |** | 8192 -> 16383 : 4140 | | 16384 -> 32767 : 673 | | 32768 -> 65535 : 179 | | 65536 -> 131071 : 29 | | 131072 -> 262143 : 4 | | 262144 -> 524287 : 1 | | 524288 -> 1048575 : 364 | | CPU 2 latency : count distribution 1 -> 1 : 0 | | 2 -> 3 : 0 | | 4 -> 7 : 0 | | 8 -> 15 : 0 | | 16 -> 31 : 0 | | 32 -> 63 : 0 | | 64 -> 127 : 0 | | 128 -> 255 : 0 | | 256 -> 511 : 0 | | 512 -> 1023 : 0 | | 1024 -> 2047 : 0 | | 2048 -> 4095 : 40147 |*************************************** | 4096 -> 8191 : 2300 |* | 8192 -> 16383 : 828 | | 16384 -> 32767 : 178 | | 32768 -> 65535 : 59 | | 65536 -> 131071 : 2 | | 131072 -> 262143 : 0 | | 262144 -> 524287 : 1 | | 524288 -> 1048575 : 174 | | CPU 3 latency : count distribution 1 -> 1 : 0 | | 2 -> 3 : 0 | | 4 -> 7 : 0 | | 8 -> 15 : 0 | | 16 -> 31 : 0 | | 32 -> 63 : 0 | | 64 -> 127 : 0 | | 128 -> 255 : 0 | | 256 -> 511 : 0 | | 512 -> 1023 : 0 | | 1024 -> 2047 : 0 | | 2048 -> 4095 : 29626 |*************************************** | 4096 -> 8191 : 2704 |** | 8192 -> 16383 : 1090 | | 16384 -> 32767 : 160 | | 32768 -> 65535 : 72 | | 65536 -> 131071 : 32 | | 131072 -> 262143 : 26 | | 262144 -> 524287 : 12 | | 524288 -> 1048575 : 298 | | All this is based on the trace3 examples written by Alexei Starovoitov <ast@plumgrid.com>. Signed-off-by:Daniel Wagner <daniel.wagner@bmw-carit.de> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Ingo Molnar <mingo@kernel.org> Cc: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org Acked-by:
Alexei Starovoitov <ast@plumgrid.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
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Nikolay Aleksandrov authored
When STP is running in user-space and querier is configured, the querier timer is not started when a port goes to a non-blocking state. This patch unifies the user- and kernel-space stp multicast port enable path and enables it in all states different from blocking. Note that when a port goes in BR_STATE_DISABLED it's not enabled because that is handled in the beginning of the port list loop. Signed-off-by:
Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Acked-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-nextDavid S. Miller authored
NFC 4.2 2nd pull request This one only contains a one liner fix for a typo that I introduced while cleaning some of the nfcmrvl patches that were part of the 1st 4.2 pull request.
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David S. Miller authored
Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Johan Hedberg says: ==================== pull request: bluetooth-next 2015-06-18 Here's the final bluetooth-next pull request for 4.2. - Cleanups & fixes to 802.15.4 code and related drivers - Fix btusb driver memory leak - New USB IDs for Atheros controllers - Support for BCM4324B3 UART based Broadcom controller - Fix for Bluetooth encryption key size handling - Broadcom controller initialization fixes - Support for Intel controller DDC parameters - Support for multiple Bluetooth LE advertising instances - Fix for HCI user channel cleanup path Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by:
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Mahesh Bandewar authored
Actor and Partner details can be accessed via proc-fs, sys-fs entries or netlink interface. These interfaces are world readable at this moment. The earlier patch-series made the LACP communication secure to avoid nuisance attack from within the same L2 domain but it did not prevent "someone unprivileged" looking at that information on host and perform the same act. This patch essentially avoids spitting those entries if the user in question does not have enough privileges. Signed-off-by:
Mahesh Bandewar <maheshb@google.com> Signed-off-by:
Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by:
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David S. Miller authored
Nicolas Ferre says: ==================== net/macb: add sama5d2 support This series is basically the support for another flavor of the GEM IP configuration. It ended up being a series because of some little fixes made to the binding documentation before adding the new compatibility string. Bye, v2: - fix bindings - add sama5d2 compatibility string to the binding documentation ==================== Acked-by:Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by:
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Cyrille Pitchen authored
Add the compatible string for Atmel sama5d2 SoC family as the configuration options differ from other instances of the GEM. Signed-off-by:
Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by:
Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by:
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Nicolas Ferre authored
Add sama5d2 to the biding documentation for this use of the GEM IP. Signed-off-by:
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Nicolas Ferre authored
On sama5d4, we only have a GEM IP that is configured to do 10/100 Mbits. So the use of "Gigabit" can be confusing. Signed-off-by:
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Nicolas Ferre authored
In the driver and the DT bindings we use the "atmel" prefix. Fix it in the binding documentation. Signed-off-by:
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Hiroaki SHIMODA authored
inet_diag_dump_reqs() is called from inet_diag_dump_icsk() with BH disabled. So no need to disable BH in inet_diag_dump_reqs(). Signed-off-by:
Hiroaki Shimoda <shimoda.hiroaki@gmail.com> Signed-off-by:
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Shengzhou Liu authored
RTL8211F has different register definitions from RTL8211E. Specially it needs to enable TXDLY in case of RGMII. Signed-off-by:
Shengzhou Liu <Shengzhou.Liu@freescale.com> Signed-off-by:
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David S. Miller authored
Merge tag 'wireless-drivers-next-for-davem-2015-06-18' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== Major changes: mwifiex: * enhancements for AP mode: support verbose information in station dump command and also information about AP link. * enable power save by default brcmfmac: * fix module reload issue for PCIe * improving msgbuf protocol for PCIe devices * rework .get_station() cfg80211 callback operation * determine interface combinations upon device feature support ath9k: * ath9k_htc: add support of channel switch wil6210: * add modparam for bcast ring size * support hidden SSID * add per-MCS Rx stats ==================== Signed-off-by:
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Scott Feldman authored
Remove the filter_dev check when dumping fdb entries, otherwise dump returns empty list. filter_dev is always passed as NULL when dumping fdbs on SELF. We want the fdbs installed on the device to be listed in the dump. Signed-off-by:
Scott Feldman <sfeldma@gmail.com> Fixes: 45d4122c ("switchdev: add support for fdb add/del/dump via switchdev_port_obj ops") Acked-by:
Sridhar Samudrala <sridhar.samudrala@intel.com> Acked-by:
Jiri Pirko <jiri@resnulli.us> Signed-off-by:
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- 21 Jun, 2015 19 commits
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David S. Miller authored
Ivan Vecera says: ==================== bna: clean-up 2 Next round of cleaning patches. ==================== Signed-off-by: -
Ivan Vecera authored
Signed-off-by:
Ivan Vecera <ivecera@redhat.com> Signed-off-by:
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Ivan Vecera authored
Signed-off-by:
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Ivan Vecera authored
BIT value is already unsigned so casting is not necessary. Signed-off-by:
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Roopa Prabhu authored
This patch adds NLM_F_APPEND flag to struct nlmsg_hdr->nlmsg_flags in newroute notifications if the route add was an append. (This is similar to how NLM_F_REPLACE is already part of new route replace notifications today) This helps userspace determine if the route add operation was an append. Signed-off-by:
Roopa Prabhu <roopa@cumulusnetworks.com> Acked-by:
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David Herrmann authored
This patch adds getsockopt(SOL_NETLINK, NETLINK_LIST_MEMBERSHIPS) to retrieve all groups a socket is a member of. Currently, we have to use getsockname() and look at the nl.nl_groups bitmask. However, this mask is limited to 32 groups. Hence, similar to NETLINK_ADD_MEMBERSHIP and NETLINK_DROP_MEMBERSHIP, this adds a separate sockopt to manager higher groups IDs than 32. This new NETLINK_LIST_MEMBERSHIPS option takes a pointer to __u32 and the size of the array. The array is filled with the full membership-set of the socket, and the required array size is returned in optlen. Hence, user-space can retry with a properly sized array in case it was too small. Signed-off-by:
David Herrmann <dh.herrmann@gmail.com> Signed-off-by:
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Craig Gallek authored
When an inet_sock is destroyed, its source port (sk_num) is set to zero as part of the unhash procedure. In order to supply a source port as part of the NETLINK_SOCK_DIAG socket destruction broadcasts, the source port number must be read from inet_sport instead. Tested: ss -E Signed-off-by:
Craig Gallek <kraig@google.com> Signed-off-by:
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Antonio Borneo authored
USE_OF is used as intermediate Kconfig option by few arch's (ARM, MIPS, Xtensa). Replace instances of USE_OF outside of arch folders with proper OF_???. Signed-off-by:
Antonio Borneo <borneo.antonio@gmail.com> Signed-off-by:
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Antonio Borneo authored
Signed-off-by:
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Zhaowei Yuan authored
Struct inet_proto no longer exists, so update the comment which is out of date. Signed-off-by:
Zhaowei Yuan <zhaowei.yuan@samsung.com> Signed-off-by:
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Hariprasad Shenai authored
Signed-off-by:
Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by:
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Raghu Vatsavayi authored
Following patch contains changes in liquidio Kconfig for selecting LIBCRC32C. Signed-off-by:
Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by:
Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by:
Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by:
Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by:
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Kees Cook authored
There's no reason to perform a buffer copy for the firmware name. This also avoids a (currently impossible with current callers) NULL dereference if there was no matching firmware. Signed-off-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
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Andrea Parri authored
The control !hlist_unhashed() in qfq_destroy_agg() is unnecessary because already performed in hlist_del_init(), so remove it. Signed-off-by:
Andrea Parri <parri.andrea@gmail.com> Signed-off-by:
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Julien Grall authored
Append 0x to all %x in order to avoid while reading when there is other decimal value in the log. Also replace some of the hexadecimal print to decimal to uniformize the format with netfront. Signed-off-by:
Julien Grall <julien.grall@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: netdev@vger.kernel.org Acked-by:
Ian Campbell <ian.campbell@citrix.com> Signed-off-by:
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Julien Grall authored
The variables old_req_cons and ring_slots_used are assigned but never used since commit 1650d545 "xen-netback: always fully coalesce guest Rx packets". Signed-off-by:
Wei Liu <wei.liu2@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: netdev@vger.kernel.org Signed-off-by:
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Julien Grall authored
rx->status is an int16_t, print it using %d rather than %u in order to have a meaningful value when the field is negative. Also use %u rather than %x for rx->offset. Signed-off-by:
David Vrabel <david.vrabel@citrix.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: netdev@vger.kernel.org Signed-off-by:
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Fabian Frederick authored
This patch also renames sg to sglist and aligns function parameters. See Documentation/DMA-API.txt - Part Id for scatterlist details Signed-off-by:
Fabian Frederick <fabf@skynet.be> Signed-off-by:
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Willem de Bruijn authored
Destruction of the po->rollover must be delayed until there are no more packets in flight that can access it. The field is destroyed in packet_release, before synchronize_net. Delay using rcu. Fixes: 0648ab70 ("packet: rollover prepare: per-socket state") Suggested-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
Willem de Bruijn <willemb@google.com> Acked-by:
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- 20 Jun, 2015 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller authored
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains a final Netfilter pull request for net-next 4.2. This mostly addresses some fallout from the previous pull request, small netns updates and a couple of new features for nfnetlink_log and the socket match that didn't get in time for the previous pull request. More specifically they are: 1) Add security context information to nfnetlink_queue, from Roman Kubiak. 2) Add support to restore the sk_mark into skb->mark through xt_socket, from Harout Hedeshian. 3) Force alignment of 16 bytes of per cpu xt_counters, from Eric Dumazet. 4) Rename br_netfilter.c to br_netfilter_hooks.c to prepare split of IPv6 code into a separated file. 5) Move the IPv6 code in br_netfilter into a separated file. 6) Remove unused RCV_SKB_FAIL() in nfnetlink_queue and nfetlink_log, from Eric Biederman. 7) Two liner to simplify netns logic in em_ipset_match(). 8) Add missing includes to net/net_namespace.h to avoid compilation problems that result from not including linux/netfilter.h in netns headers. 9) Use a forward declaration instead of including linux/proc_fs.h from netns/netfilter.h 10) Add a new linux/netfilter_defs.h to replace the linux/netfilter.h inclusion in netns headers. 11) Remove spurious netfilter.h file included in the net tree, also from Eric Biederman. 12) Fix x_tables compilation warnings on 32 bits platforms that resulted from recent changes in x_tables counters, from Florian Westphal. ==================== Signed-off-by:
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- 18 Jun, 2015 2 commits
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Florian Westphal authored
On 32bit archs gcc complains due to cast from void* to u64. Add intermediate casts to long to silence these warnings. include/linux/netfilter/x_tables.h:376:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] include/linux/netfilter/x_tables.h:384:15: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] include/linux/netfilter/x_tables.h:391:23: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] include/linux/netfilter/x_tables.h:400:22: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] Fixes: 71ae0dff ("netfilter: xtables: use percpu rule counters") Reported-by:
kbuild test robot <fengguang.wu@intel.com> Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
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Eric W Biederman authored
While testing my netfilter changes I noticed several files where recompiling unncessarily because they unncessarily included netfilter.h. Signed-off-by:
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