OSDN Git Service

tomoyo/tomoyo-test1.git
7 years agonet_sched: fix error recovery at qdisc creation
Eric Dumazet [Fri, 10 Feb 2017 18:31:49 +0000 (10:31 -0800)]
net_sched: fix error recovery at qdisc creation

Dmitry reported uses after free in qdisc code [1]

The problem here is that ops->init() can return an error.

qdisc_create_dflt() then call ops->destroy(),
while qdisc_create() does _not_ call it.

Four qdisc chose to call their own ops->destroy(), assuming their caller
would not.

This patch makes sure qdisc_create() calls ops->destroy()
and fixes the four qdisc to avoid double free.

[1]
BUG: KASAN: use-after-free in mq_destroy+0x242/0x290 net/sched/sch_mq.c:33 at addr ffff8801d415d440
Read of size 8 by task syz-executor2/5030
CPU: 0 PID: 5030 Comm: syz-executor2 Not tainted 4.3.5-smp-DEV #119
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000046 ffff8801b435b870 ffffffff81bbbed4 ffff8801db000400
 ffff8801d415d440 ffff8801d415dc40 ffff8801c4988510 ffff8801b435b898
 ffffffff816682b1 ffff8801b435b928 ffff8801d415d440 ffff8801c49880c0
Call Trace:
 [<ffffffff81bbbed4>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81bbbed4>] dump_stack+0x6c/0x98 lib/dump_stack.c:51
 [<ffffffff816682b1>] kasan_object_err+0x21/0x70 mm/kasan/report.c:158
 [<ffffffff81668524>] print_address_description mm/kasan/report.c:196 [inline]
 [<ffffffff81668524>] kasan_report_error+0x1b4/0x4b0 mm/kasan/report.c:285
 [<ffffffff81668953>] kasan_report mm/kasan/report.c:305 [inline]
 [<ffffffff81668953>] __asan_report_load8_noabort+0x43/0x50 mm/kasan/report.c:326
 [<ffffffff82527b02>] mq_destroy+0x242/0x290 net/sched/sch_mq.c:33
 [<ffffffff82524bdd>] qdisc_destroy+0x12d/0x290 net/sched/sch_generic.c:953
 [<ffffffff82524e30>] qdisc_create_dflt+0xf0/0x120 net/sched/sch_generic.c:848
 [<ffffffff8252550d>] attach_default_qdiscs net/sched/sch_generic.c:1029 [inline]
 [<ffffffff8252550d>] dev_activate+0x6ad/0x880 net/sched/sch_generic.c:1064
 [<ffffffff824b1db1>] __dev_open+0x221/0x320 net/core/dev.c:1403
 [<ffffffff824b24ce>] __dev_change_flags+0x15e/0x3e0 net/core/dev.c:6858
 [<ffffffff824b27de>] dev_change_flags+0x8e/0x140 net/core/dev.c:6926
 [<ffffffff824f5bf6>] dev_ifsioc+0x446/0x890 net/core/dev_ioctl.c:260
 [<ffffffff824f61fa>] dev_ioctl+0x1ba/0xb80 net/core/dev_ioctl.c:546
 [<ffffffff82430509>] sock_do_ioctl+0x99/0xb0 net/socket.c:879
 [<ffffffff82430d30>] sock_ioctl+0x2a0/0x390 net/socket.c:958
 [<ffffffff816f3b68>] vfs_ioctl fs/ioctl.c:44 [inline]
 [<ffffffff816f3b68>] do_vfs_ioctl+0x8a8/0xe50 fs/ioctl.c:611
 [<ffffffff816f41a4>] SYSC_ioctl fs/ioctl.c:626 [inline]
 [<ffffffff816f41a4>] SyS_ioctl+0x94/0xc0 fs/ioctl.c:617
 [<ffffffff8123e357>] entry_SYSCALL_64_fastpath+0x12/0x17

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: ethernet: ti: cpsw: return NET_XMIT_DROP if skb_padto failed
Ivan Khoronzhuk [Sat, 11 Feb 2017 01:49:57 +0000 (03:49 +0200)]
net: ethernet: ti: cpsw: return NET_XMIT_DROP if skb_padto failed

If skb_padto failed the skb has been dropped already, so it was
consumed, but it doesn't mean it was sent, thus no need to update
queue tx time, etc. So, return NET_XMIT_DROP as more appropriate.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agovxlan: remove vni zero check and drop for COLLECT_METADATA
Roopa Prabhu [Sat, 11 Feb 2017 05:38:36 +0000 (21:38 -0800)]
vxlan: remove vni zero check and drop for COLLECT_METADATA

This patch drops the vni zero check for COLLECT_METADATA mode.
It is not really needed, vni zero is a valid vni.

Fixes: 3ad7a4b141eb ("vxlan: support fdb and learning in COLLECT_METADATA mode"
Reported-by: Joe Stringer <joe@ovn.org>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: rename dst_neigh_output back to neigh_output
Julian Anastasov [Sat, 11 Feb 2017 11:49:20 +0000 (13:49 +0200)]
net: rename dst_neigh_output back to neigh_output

After the dst->pending_confirm flag was removed, we do not
need anymore to provide dst arg to dst_neigh_output.
So, rename it to neigh_output as before commit 5110effee8fd
("net: Do delayed neigh confirmation.").

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosfc: fix swapped arguments to efx_ef10_handle_rx_event_errors
Edward Cree [Fri, 10 Feb 2017 17:34:59 +0000 (17:34 +0000)]
sfc: fix swapped arguments to efx_ef10_handle_rx_event_errors

Fixes: a0ee35414837 ("sfc: process RX event inner checksum flags")
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'ipvtap'
David S. Miller [Sun, 12 Feb 2017 01:59:43 +0000 (20:59 -0500)]
Merge branch 'ipvtap'

Sainath Grandhi says:

====================
Refactor macvtap to re-use tap functionality by other virtual intefaces

Tap character devices can be implemented on other virtual interfaces like
ipvlan, similar to macvtap. Source code for tap functionality in macvtap
can be re-used for this purpose.

This patch series splits macvtap source into two modules, macvtap and tap.
This patch series also includes a patch for implementing tap character
device driver based on the IP-VLAN network interface, called ipvtap.

These patches are tested on x86 platform.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoipvtap: IP-VLAN based tap driver
Sainath Grandhi [Sat, 11 Feb 2017 00:03:52 +0000 (16:03 -0800)]
ipvtap: IP-VLAN based tap driver

This patch adds a tap character device driver that is based on the
IP-VLAN network interface, called ipvtap. An ipvtap device can be created
in the same way as an ipvlan device, using 'type ipvtap', and then accessed
using the tap user space interface.

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotap: tap as an independent module
Sainath Grandhi [Sat, 11 Feb 2017 00:03:51 +0000 (16:03 -0800)]
tap: tap as an independent module

This patch makes tap a separate module for other types of virtual interfaces, for example,
ipvlan to use.

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotap: Extending tap device create/destroy APIs
Sainath Grandhi [Sat, 11 Feb 2017 00:03:50 +0000 (16:03 -0800)]
tap: Extending tap device create/destroy APIs

Extending tap APIs get/free_minor and create/destroy_cdev to handle more than one
type of virtual interface.

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotap: Abstract type of virtual interface from tap implementation
Sainath Grandhi [Sat, 11 Feb 2017 00:03:49 +0000 (16:03 -0800)]
tap: Abstract type of virtual interface from tap implementation

macvlan object is re-structured to hold tap related elements in a separate
entity, tap_dev. Upon NETDEV_REGISTER device_event, tap_dev is registered with
idr and fetched again on tap_open. Few of the tap functions are modified to
accepted tap_dev as argument. tap_dev object includes callbacks to be used by
underlying virtual interface to take care of tx and rx accounting.

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotap: Tap character device creation/destroy API
Sainath Grandhi [Sat, 11 Feb 2017 00:03:48 +0000 (16:03 -0800)]
tap: Tap character device creation/destroy API

This patch provides tap device create/destroy APIs in tap.c.

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotap: Renaming tap related APIs, data structures, macros
Sainath Grandhi [Sat, 11 Feb 2017 00:03:47 +0000 (16:03 -0800)]
tap: Renaming tap related APIs, data structures, macros

Renaming tap related APIs, data structures and macros in tap.c from macvtap_.* to tap_.*

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotap: Refactoring macvtap.c
Sainath Grandhi [Sat, 11 Feb 2017 00:03:46 +0000 (16:03 -0800)]
tap: Refactoring macvtap.c

macvtap module has code for tap/queue management and link management. This patch splits
the code into macvtap_main.c for link management and tap.c for tap/queue management.
Functionality in tap.c can be re-used for implementing tap on other virtual interfaces.

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
David S. Miller [Sat, 11 Feb 2017 07:31:11 +0000 (02:31 -0500)]
Merge git://git./linux/kernel/git/davem/net

7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 10 Feb 2017 22:44:49 +0000 (14:44 -0800)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) If the timing is wrong we can indefinitely stop generating new ipv6
    temporary addresses, from Marcus Huewe.

 2) Don't double free per-cpu stats in ipv6 SIT tunnel driver, from Cong
    Wang.

 3) Put protections in place so that AF_PACKET is not able to submit
    packets which don't even have a link level header to drivers. From
    Willem de Bruijn.

 4) Fix memory leaks in ipv4 and ipv6 multicast code, from Hangbin Liu.

 5) Don't use udp_ioctl() in l2tp code, UDP version expects a UDP socket
    and that doesn't go over very well when it is passed an L2TP one.
    Fix from Eric Dumazet.

 6) Don't crash on NULL pointer in phy_attach_direct(), from Florian
    Fainelli.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  l2tp: do not use udp_ioctl()
  xen-netfront: Delete rx_refill_timer in xennet_disconnect_backend()
  NET: mkiss: Fix panic
  net: hns: Fix the device being used for dma mapping during TX
  net: phy: Initialize mdio clock at probe function
  igmp, mld: Fix memory leak in igmpv3/mld_del_delrec()
  xen-netfront: Improve error handling during initialization
  sierra_net: Skip validating irrelevant fields for IDLE LSIs
  sierra_net: Add support for IPv6 and Dual-Stack Link Sense Indications
  kcm: fix 0-length case for kcm_sendmsg()
  xen-netfront: Rework the fix for Rx stall during OOM and network stress
  net: phy: Fix PHY module checks and NULL deref in phy_attach_direct()
  net: thunderx: Fix PHY autoneg for SGMII QLM mode
  net: dsa: Do not destroy invalid network devices
  ping: fix a null pointer dereference
  packet: round up linear to header len
  net: introduce device min_header_len
  sit: fix a double free on error path
  lwtunnel: valid encap attr check should return 0 when lwtunnel is disabled
  ipv6: addrconf: fix generation of new temporary addresses

7 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Linus Torvalds [Fri, 10 Feb 2017 22:41:16 +0000 (14:41 -0800)]
Merge tag 'for-linus' of git://git./linux/kernel/git/dledford/rdma

Pull rdma fixes from Doug Ledford:
 "Third round of -rc fixes for 4.10 kernel:

   - two security related issues in the rxe driver

   - one compile issue in the RDMA uapi header"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
  RDMA: Don't reference kernel private header from UAPI header
  IB/rxe: Fix mem_check_range integer overflow
  IB/rxe: Fix resid update

7 years agoMerge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Fri, 10 Feb 2017 22:39:08 +0000 (14:39 -0800)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux

Pull i2c bugfixes from Wolfram Sang:
 "Two bugfixes (proper IO mapping and use of mutex) for a driver feature
  we introduced in this cycle"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: piix4: Request the SMBUS semaphore inside the mutex
  i2c: piix4: Fix request_region size

7 years agoMerge tag 'mmc-v4.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Fri, 10 Feb 2017 22:35:22 +0000 (14:35 -0800)]
Merge tag 'mmc-v4.10-rc7' of git://git./linux/kernel/git/ulfh/mmc

Pull MMC host fix from Ulf Hansson:
 "mmci: Fix hang while waiting for busy-end interrupt"

* tag 'mmc-v4.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: mmci: avoid clearing ST Micro busy end interrupt mistakenly

7 years agoMerge tag 'sound-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Fri, 10 Feb 2017 22:29:30 +0000 (14:29 -0800)]
Merge tag 'sound-4.10' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here are some last-minute fixes: two fixes for races in ALSA sequencer
  queue spotted by syzkaller, a revert for a regression of LINE6 driver
  (since 4.9), and a trivial new codec ID addition for Nvidia HDMI"

* tag 'sound-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - adding a new NV HDMI/DP codec ID in the driver
  ALSA: seq: Fix race at creating a queue
  Revert "ALSA: line6: Only determine control port properties if needed"
  ALSA: seq: Don't handle loop timeout at snd_seq_pool_done()

7 years agoMerge tag 'nfsd-4.10-3' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Fri, 10 Feb 2017 22:23:45 +0000 (14:23 -0800)]
Merge tag 'nfsd-4.10-3' of git://linux-nfs.org/~bfields/linux

Pull nfsd revert from Bruce Fields:
 "This patch turned out to have a couple problems. The problems are
  fixable, but at least one of the fixes is a little ugly. The original
  bug has always been there, so we can wait another week or two to get
  this right"

* tag 'nfsd-4.10-3' of git://linux-nfs.org/~bfields/linux:
  nfsd: Revert "nfsd: special case truncates some more"

7 years agoMerge tag 'powerpc-4.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Fri, 10 Feb 2017 22:10:35 +0000 (14:10 -0800)]
Merge tag 'powerpc-4.10-4' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes friom Michael Ellerman:
 "Apologies for the late pull request, but Ben has been busy finding bugs.

   - Userspace was semi-randomly segfaulting on radix due to us
     incorrectly handling a fault triggered by autonuma, caused by a
     patch we merged earlier in v4.10 to prevent the kernel executing
     userspace.

   - We weren't marking host IPIs properly for KVM in the OPAL ICP
     backend.

   - The ERAT flushing on radix was missing an isync and was incorrectly
     marked as DD1 only.

   - The powernv CPU hotplug code was missing a wakeup type and failing
     to flush the interrupt correctly when using OPAL ICP

  Thanks to Benjamin Herrenschmidt"

* tag 'powerpc-4.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/powernv: Properly set "host-ipi" on IPIs
  powerpc/powernv: Fix CPU hotplug to handle waking on HVI
  powerpc/mm/radix: Update ERAT flushes when invalidating TLB
  powerpc/mm: Fix spurrious segfaults on radix with autonuma

7 years agogtp: add MAINTAINERS
Pablo Neira [Fri, 10 Feb 2017 12:26:27 +0000 (13:26 +0100)]
gtp: add MAINTAINERS

Add maintainers for this tunnel driver. Include main osmocom.org mailist
list too.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agol2tp: do not use udp_ioctl()
Eric Dumazet [Fri, 10 Feb 2017 00:15:52 +0000 (16:15 -0800)]
l2tp: do not use udp_ioctl()

udp_ioctl(), as its name suggests, is used by UDP protocols,
but is also used by L2TP :(

L2TP should use its own handler, because it really does not
look the same.

SIOCINQ for instance should not assume UDP checksum or headers.

Thanks to Andrey and syzkaller team for providing the report
and a nice reproducer.

While crashes only happen on recent kernels (after commit
7c13f97ffde6 ("udp: do fwd memory scheduling on dequeue")), this
probably needs to be backported to older kernels.

Fixes: 7c13f97ffde6 ("udp: do fwd memory scheduling on dequeue")
Fixes: 85584672012e ("udp: Fix udp_poll() and ioctl()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'bpf-selftests-improve-and-use-library'
David S. Miller [Fri, 10 Feb 2017 20:56:08 +0000 (15:56 -0500)]
Merge branch 'bpf-selftests-improve-and-use-library'

Mickaël Salaün says:

====================
Improve BPF selftests and use the library (net-next tree)

This series brings some fixes to selftests, add the ability to test
unprivileged BPF programs as root and replace bpf_sys.h with calls to the BPF
library.

This is intended for the net-next tree and apply on c0e4dadb3494 ("net: dsa:
mv88e6xxx: Move forward declaration to where it is needed").

Changes since v4:
* align text for function calls as requested by Daniel Borkmann
  (bpf_load_program and bpf_map_update_elem)
* rebase

Changes since v3:
* keep the bzero() calls

Changes since v2:
* use the patches from two previous series (unprivileged tests and bpf_sys.h
  replacement)
* include one more stdint.h
* rebase on net-next
* add this cover letter

Changes since v1:
* exclude patches not intended for the net-next tree
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: Add test_tag to .gitignore
Mickaël Salaün [Thu, 9 Feb 2017 23:21:45 +0000 (00:21 +0100)]
bpf: Add test_tag to .gitignore

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: Remove bpf_sys.h from selftests
Mickaël Salaün [Thu, 9 Feb 2017 23:21:44 +0000 (00:21 +0100)]
bpf: Remove bpf_sys.h from selftests

Add require dependency headers.

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: Use bpf_create_map() from the library
Mickaël Salaün [Thu, 9 Feb 2017 23:21:43 +0000 (00:21 +0100)]
bpf: Use bpf_create_map() from the library

Replace bpf_map_create() with bpf_create_map() calls.

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: Use bpf_map_get_next_key() from the library
Mickaël Salaün [Thu, 9 Feb 2017 23:21:42 +0000 (00:21 +0100)]
bpf: Use bpf_map_get_next_key() from the library

Replace bpf_map_next_key() with bpf_map_get_next_key() calls.

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: Use bpf_map_delete_elem() from the library
Mickaël Salaün [Thu, 9 Feb 2017 23:21:41 +0000 (00:21 +0100)]
bpf: Use bpf_map_delete_elem() from the library

Replace bpf_map_delete() with bpf_map_delete_elem() calls.

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: Use bpf_map_lookup_elem() from the library
Mickaël Salaün [Thu, 9 Feb 2017 23:21:40 +0000 (00:21 +0100)]
bpf: Use bpf_map_lookup_elem() from the library

Replace bpf_map_lookup() with bpf_map_lookup_elem() calls.

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: Use bpf_map_update_elem() from the library
Mickaël Salaün [Thu, 9 Feb 2017 23:21:39 +0000 (00:21 +0100)]
bpf: Use bpf_map_update_elem() from the library

Replace bpf_map_update() with bpf_map_update_elem() calls.

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: Use bpf_load_program() from the library
Mickaël Salaün [Thu, 9 Feb 2017 23:21:38 +0000 (00:21 +0100)]
bpf: Use bpf_load_program() from the library

Replace bpf_prog_load() with bpf_load_program() calls.

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: Always test unprivileged programs
Mickaël Salaün [Thu, 9 Feb 2017 23:21:37 +0000 (00:21 +0100)]
bpf: Always test unprivileged programs

If selftests are run as root, then execute the unprivileged checks as
well. This switch from 243 to 368 tests.

The test numbers are suffixed with "/u" when executed as unprivileged or
with "/p" when executed as privileged.

The geteuid() check is replaced with a capability check.

Handling capabilities requires the libcap dependency.

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobpf: Change the include directory for selftest
Mickaël Salaün [Thu, 9 Feb 2017 23:21:36 +0000 (00:21 +0100)]
bpf: Change the include directory for selftest

Use the tools include directory instead of the installed one to allow
builds from other kernels.

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotools: Sync {,tools/}include/uapi/linux/bpf.h
Mickaël Salaün [Thu, 9 Feb 2017 23:21:35 +0000 (00:21 +0100)]
tools: Sync {,tools/}include/uapi/linux/bpf.h

The tools version of this header is out of date; update it to the latest
version from kernel header.

Synchronize with the following commits:
b95a5c4db09b ("bpf: add a longest prefix match trie map implementation")
a5e8c07059d0 ("bpf: add bpf_probe_read_str helper")
d1b662adcdb8 ("bpf: allow option for setting bpf_l4_csum_replace from scratch")

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Daniel Mack <daniel@zonque.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Gianluca Borello <g.borello@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'netronome-NFP4000-and-NFP6000-PF-driver'
David S. Miller [Fri, 10 Feb 2017 20:52:27 +0000 (15:52 -0500)]
Merge branch 'netronome-NFP4000-and-NFP6000-PF-driver'

Jakub Kicinski says:

====================
Netronome NFP4000 and NFP6000 PF driver

This is a base PF driver for Netronome NFP4000 and NFP6000 chips.  This
series doesn't add any exciting new features, it provides a foundation
for supporting more advanced firmware applications.

Patch 1 moves a bitfield-related helper from our BPF code to the global
header.

Patch 2 renames the kernel module and adds a new main file.  We were
considering 3-module approach (pf, vf, common netdev library) but
ultimately settled on a single module to keep things simple.

Patch 3 adds support for accessing chip internals.  It provides a way of
configuring access windows to different parts of chip memory and issuing
pretty much any commands on chip's NoC.

Patches 4, 5, 6, 7, 8 provide support for accessing and interpreting
various hardware and firmware information structures.

Patch 9 introduces service processor (NSP) ABI.  This ABI gives us
access to PHY/SFP module configuration and information as well as
methods for unloading and loading application firmware.

Patches 10 and 11 modify the existing netdev code to make it possible
to support multi-port devices (sharing a PCI device).

Patch 12 adds a new driver probe path which will be used for the PF
PCI device IDs.  It utilizes the newly added infrastructure and is able
to load application FW and spawn netdevs for all card's ports.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add the PF driver
Jakub Kicinski [Thu, 9 Feb 2017 17:17:38 +0000 (09:17 -0800)]
nfp: add the PF driver

Add PF driver for NFP4000 and NFP6000.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: allocate irqs in lower driver
Jakub Kicinski [Thu, 9 Feb 2017 17:17:37 +0000 (09:17 -0800)]
nfp: allocate irqs in lower driver

PF services multiple ports using single PCI device therefore
IRQs can no longer be allocated in the netdev code.  Lower
portion of the driver has to allocate the IRQs and hand them
out to ports.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add port layer to debugfs directories
Jakub Kicinski [Thu, 9 Feb 2017 17:17:36 +0000 (09:17 -0800)]
nfp: add port layer to debugfs directories

PF driver will support multiple ports per PCI device, add port
number to DebugFS paths.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add support for service processor access
Jakub Kicinski [Thu, 9 Feb 2017 17:17:35 +0000 (09:17 -0800)]
nfp: add support for service processor access

NFP Service Processor (NSP) is an ARM core inside the chip which
is responsible for management and control functions.  Add support
for chip reset, FW load and external module access using the NSP.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add rtsym support
Jakub Kicinski [Thu, 9 Feb 2017 17:17:34 +0000 (09:17 -0800)]
nfp: add rtsym support

Add support for using application FW symbol table to look up
location of information in device memory.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add MIP reading support
Jakub Kicinski [Thu, 9 Feb 2017 17:17:33 +0000 (09:17 -0800)]
nfp: add MIP reading support

MIP is a vector of information which linker can optionally include
in application firmware.  It will be used to retrieve the location
of symbol tables.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add support for reading nffw info
Jakub Kicinski [Thu, 9 Feb 2017 17:17:32 +0000 (09:17 -0800)]
nfp: add support for reading nffw info

NFFW info is a resource which contains information about
the loaded application firmware.  Add code which will allow
us to decode it and retrieve MIP location.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add hwinfo support
Jakub Kicinski [Thu, 9 Feb 2017 17:17:31 +0000 (09:17 -0800)]
nfp: add hwinfo support

Hwinfo is a simple key=value store of information which is read
from the flash and populated during chip power on.  Add code to
look up information in it.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add support for resources
Jakub Kicinski [Thu, 9 Feb 2017 17:17:30 +0000 (09:17 -0800)]
nfp: add support for resources

Resource table is an array placed in a well defined location
in device's memory which describes device resources and contains
locks which have to be acquired to use them.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: add CPP access core
Jakub Kicinski [Thu, 9 Feb 2017 17:17:29 +0000 (09:17 -0800)]
nfp: add CPP access core

Command Push Pull is the name of NFP's network on a chip.
PCIe PF can access the interconnect through a number of mappings
controlled via Base Access Registers.  BARs allow the PF to issue
pretty much any command or address any memory on the chip.

Add appropriate logic and a handful of helper for simple operations
like reading scalars from memories.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonfp: rename the driver and add new main file
Jakub Kicinski [Thu, 9 Feb 2017 17:17:28 +0000 (09:17 -0800)]
nfp: rename the driver and add new main file

Support for the PF driver is about to be added and will share
much of the code.  When the VF driver was added we planned to
maintain the PF driver as a separate module but have decided
that for our simple use case just maintaining a single module
is more reasonable.  Rename the driver to just "nfp" and update
the Kconfig.

While at it remove latent references to NFP3200.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobitfield.h: add FIELD_FIT() helper
Jakub Kicinski [Thu, 9 Feb 2017 17:17:27 +0000 (09:17 -0800)]
bitfield.h: add FIELD_FIT() helper

Add a helper for checking at runtime that a value will fit inside
a specified field/mask.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'devlink-small-cleanups'
David S. Miller [Fri, 10 Feb 2017 19:43:01 +0000 (14:43 -0500)]
Merge branch 'devlink-small-cleanups'

Jiri Pirko says:

====================
devlink: small cleanup around eswitch [sg]et

Contains small devlink cleanup around eswitch get/set commands.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodevlink: allow to fillup eswitch attrs even if mode_get op does not exist
Jiri Pirko [Thu, 9 Feb 2017 14:54:36 +0000 (15:54 +0100)]
devlink: allow to fillup eswitch attrs even if mode_get op does not exist

Even when mode_get op is not present, other eswitch attrs need to be
filled-up.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodevlink: use nla_put_failure goto label instead of out
Jiri Pirko [Thu, 9 Feb 2017 14:54:35 +0000 (15:54 +0100)]
devlink: use nla_put_failure goto label instead of out

Be aligned with the rest of the code and use label named nla_put_failure.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodevlink: rename devlink_eswitch_fill to devlink_nl_eswitch_fill
Jiri Pirko [Thu, 9 Feb 2017 14:54:34 +0000 (15:54 +0100)]
devlink: rename devlink_eswitch_fill to devlink_nl_eswitch_fill

Be aligned with the rest of the file and name the helper function
accordingly.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodevlink: fix the name of eswitch commands
Jiri Pirko [Thu, 9 Feb 2017 14:54:33 +0000 (15:54 +0100)]
devlink: fix the name of eswitch commands

The eswitch_[gs]et command is supposed to be similar to port_[gs]et
command - for multiple eswitch attributes. However, when it was introduced
by 08f4b5918b2d ("net/devlink: Add E-Switch mode control") it was wrongly
named with the word "mode" in it. So fix this now, make the oririnal
enum value existing but obsolete.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'mac80211-next-for-davem-2017-02-09' of git://git.kernel.org/pub/scm/linux...
David S. Miller [Fri, 10 Feb 2017 19:31:51 +0000 (14:31 -0500)]
Merge tag 'mac80211-next-for-davem-2017-02-09' of git://git./linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Some more updates:
 * use shash in mac80211 crypto code where applicable
 * some documentation fixes
 * pass RSSI levels up in change notifications
 * remove unused rfkill-regulator
 * various other cleanups
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: ethernet: ti: netcp_core: remove netif_trans_update
Ivan Khoronzhuk [Thu, 9 Feb 2017 14:17:40 +0000 (16:17 +0200)]
net: ethernet: ti: netcp_core: remove netif_trans_update

No need to update jiffies in txq->trans_start twice and only for tx 0,
it's supposed to be done in netdev_start_xmit() and per tx queue.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'dsa-phy-include'
David S. Miller [Fri, 10 Feb 2017 18:51:05 +0000 (13:51 -0500)]
Merge branch 'dsa-phy-include'

Florian Fainelli says:

====================
net: dsa: remove unnecessary phy.h include

Including phy.h and phy_fixed.h into net/dsa.h causes phy*.h to be an
unnecessary dependency for quite a large amount of the kernel.  There's
very little which actually requires definitions from phy.h in net/dsa.h
- the include itself only wants the declaration of a couple of
structures and IFNAMSIZ.

Add linux/if.h for IFNAMSIZ, declarations for the structures, phy.h to
mv88e6xxx.h as it needs it for phy_interface_t, and remove both phy.h
and phy_fixed.h from net/dsa.h.

This patch reduces from around 800 files rebuilt to around 40 - even
with ccache, the time difference is noticable.

In order to make this change, several drivers need to be updated to
include necessary headers that they were picking up through this
include.  This has resulted in a much larger patch series.

I'm assuming the 0-day builder has had 24 hours with this series, and
hasn't reported any further issues with it - the last issue was two
weeks ago (before I became ill) which I fixed over the last weekend.

I'm hoping this doesn't conflict with what's already in net-next...

David, this should probably go via your tree considering the diffstat.

Changes in v2:

- took Russell's patch series
- removed Qualcomm EMAC patch
- rebased against net-next/master
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: remove unnecessary phy*.h includes
Russell King [Tue, 7 Feb 2017 23:03:05 +0000 (15:03 -0800)]
net: dsa: remove unnecessary phy*.h includes

Including phy.h and phy_fixed.h into net/dsa.h causes phy*.h to be an
unnecessary dependency for quite a large amount of the kernel.  There's
very little which actually requires definitions from phy.h in net/dsa.h
- the include itself only wants the declaration of a couple of
structures and IFNAMSIZ.

Add linux/if.h for IFNAMSIZ, declarations for the structures, phy.h to
mv88e6xxx.h as it needs it for phy_interface_t, and remove both phy.h
and phy_fixed.h from net/dsa.h.

This patch reduces from around 800 files rebuilt to around 40 - even
with ccache, the time difference is noticable.

Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: ath5k: fix build errors when linux/phy*.h is removed from net/dsa.h
Russell King [Tue, 7 Feb 2017 23:03:04 +0000 (15:03 -0800)]
net: ath5k: fix build errors when linux/phy*.h is removed from net/dsa.h

Fix these errors reported by the 0-day builder by replacing the
linux/export.h include with linux/module.h.

In file included from include/linux/platform_device.h:14:0,
                 from drivers/net/wireless/ath/ath5k/ahb.c:20:
include/linux/device.h:1463:1: warning: data definition has no type or storage class
 module_init(__driver##_init); \
 ^
include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
  module_driver(__platform_driver, platform_driver_register, \
  ^~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: note: in expansion of macro 'module_platform_driver'
 module_platform_driver(ath_ahb_driver);
 ^~~~~~~~~~~~~~~~~~~~~~
include/linux/device.h:1463:1: error: type defaults to 'int' in declaration of 'module_init' [-Werror=implicit-int]
 module_init(__driver##_init); \
 ^
include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
  module_driver(__platform_driver, platform_driver_register, \
  ^~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: note: in expansion of macro 'module_platform_driver'
 module_platform_driver(ath_ahb_driver);
 ^~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: warning: parameter names (without types) in function declaration
In file included from include/linux/platform_device.h:14:0,
                 from drivers/net/wireless/ath/ath5k/ahb.c:20:
include/linux/device.h:1468:1: warning: data definition has no type or storage class
 module_exit(__driver##_exit);
 ^
include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
  module_driver(__platform_driver, platform_driver_register, \
  ^~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: note: in expansion of macro 'module_platform_driver'
 module_platform_driver(ath_ahb_driver);
 ^~~~~~~~~~~~~~~~~~~~~~
include/linux/device.h:1468:1: error: type defaults to 'int' in declaration of 'module_exit' [-Werror=implicit-int]
 module_exit(__driver##_exit);
 ^
include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
  module_driver(__platform_driver, platform_driver_register, \
  ^~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: note: in expansion of macro 'module_platform_driver'
 module_platform_driver(ath_ahb_driver);
 ^~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: warning: parameter names (without types) in function declaration
In file included from include/linux/platform_device.h:14:0,
                 from drivers/net/wireless/ath/ath5k/ahb.c:20:
drivers/net/wireless/ath/ath5k/ahb.c:233:24: warning: 'ath_ahb_driver_exit' defined but not used [-Wunused-function]
 module_platform_driver(ath_ahb_driver);
                        ^
include/linux/device.h:1464:20: note: in definition of macro 'module_driver'
 static void __exit __driver##_exit(void) \
                    ^~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: note: in expansion of macro 'module_platform_driver'
 module_platform_driver(ath_ahb_driver);
 ^~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:24: warning: 'ath_ahb_driver_init' defined but not used [-Wunused-function]
 module_platform_driver(ath_ahb_driver);
                        ^
include/linux/device.h:1459:19: note: in definition of macro 'module_driver'
 static int __init __driver##_init(void) \
                   ^~~~~~~~
drivers/net/wireless/ath/ath5k/ahb.c:233:1: note: in expansion of macro 'module_platform_driver'
 module_platform_driver(ath_ahb_driver);
 ^~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: liquidio: fix build errors when linux/phy*.h is removed from net/dsa.h
Russell King [Tue, 7 Feb 2017 23:03:03 +0000 (15:03 -0800)]
net: liquidio: fix build errors when linux/phy*.h is removed from net/dsa.h

drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:30: error: expected declaration specifiers or '...' before string constant
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:30: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:30: error: type defaults to 'int' in declaration of 'MODULE_AUTHOR'
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:30: error: function declaration isn't a prototype
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:31: error: expected declaration specifiers or '...' before string constant
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:31: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:31: error: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION'
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:31: error: function declaration isn't a prototype
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:32: error: expected declaration specifiers or '...' before string constant
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:32: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:32: error: type defaults to 'int' in declaration of 'MODULE_LICENSE'
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:32: error: function declaration isn't a prototype
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:33: error: expected declaration specifiers or '...' before string constant
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:33: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:33: error: type defaults to 'int' in declaration of 'MODULE_VERSION'
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:33: error: function declaration isn't a prototype
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:36: error: expected ')' before 'int'
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:37: error: expected ')' before string constant
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:325: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:325: error: type defaults to 'int' in declaration of 'MODULE_DEVICE_TABLE'
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:325: warning: parameter names (without types) in function declaration
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:3250: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:3250: error: type defaults to 'int' in declaration of 'module_init'
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:3250: warning: parameter names (without types) in function declaration
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:3251: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:3251: error: type defaults to 'int' in declaration of 'module_exit'
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:3251: warning: parameter names (without types) in function declaration
drivers/net/ethernet/cavium/liquidio/lio_main.c:36: error: expected declaration specifiers or '...' before string constant
drivers/net/ethernet/cavium/liquidio/lio_main.c:36: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_main.c:36: error: type defaults to 'int' in declaration of 'MODULE_AUTHOR'
drivers/net/ethernet/cavium/liquidio/lio_main.c:36: error: function declaration isn't a prototype
drivers/net/ethernet/cavium/liquidio/lio_main.c:37: error: expected declaration specifiers or '...' before string constant
drivers/net/ethernet/cavium/liquidio/lio_main.c:37: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_main.c:37: error: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION'
drivers/net/ethernet/cavium/liquidio/lio_main.c:37: error: function declaration isn't a prototype
drivers/net/ethernet/cavium/liquidio/lio_main.c:38: error: expected declaration specifiers or '...' before string constant
drivers/net/ethernet/cavium/liquidio/lio_main.c:38: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_main.c:38: error: type defaults to 'int' in declaration of 'MODULE_LICENSE'
drivers/net/ethernet/cavium/liquidio/lio_main.c:38: error: function declaration isn't a prototype
drivers/net/ethernet/cavium/liquidio/lio_main.c:39: error: expected declaration specifiers or '...' before string constant
drivers/net/ethernet/cavium/liquidio/lio_main.c:39: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_main.c:39: error: type defaults to 'int' in declaration of 'MODULE_VERSION'
drivers/net/ethernet/cavium/liquidio/lio_main.c:39: error: function declaration isn't a prototype
drivers/net/ethernet/cavium/liquidio/lio_main.c:40: error: expected declaration specifiers or '...' before string constant
drivers/net/ethernet/cavium/liquidio/lio_main.c:40: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_main.c:40: error: type defaults to 'int' in declaration of 'MODULE_FIRMWARE'
drivers/net/ethernet/cavium/liquidio/lio_main.c:40: error: function declaration isn't a prototype
drivers/net/ethernet/cavium/liquidio/lio_main.c:41: error: expected declaration specifiers or '...' before string constant
drivers/net/ethernet/cavium/liquidio/lio_main.c:41: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_main.c:41: error: type defaults to 'int' in declaration of 'MODULE_FIRMWARE'
drivers/net/ethernet/cavium/liquidio/lio_main.c:41: error: function declaration isn't a prototype
drivers/net/ethernet/cavium/liquidio/lio_main.c:42: error: expected declaration specifiers or '...' before string constant
drivers/net/ethernet/cavium/liquidio/lio_main.c:42: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_main.c:42: error: type defaults to 'int' in declaration of 'MODULE_FIRMWARE'
drivers/net/ethernet/cavium/liquidio/lio_main.c:42: error: function declaration isn't a prototype
drivers/net/ethernet/cavium/liquidio/lio_main.c:43: error: expected declaration specifiers or '...' before string constant
drivers/net/ethernet/cavium/liquidio/lio_main.c:43: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_main.c:43: error: type defaults to 'int' in declaration of 'MODULE_FIRMWARE'
drivers/net/ethernet/cavium/liquidio/lio_main.c:43: error: function declaration isn't a prototype
drivers/net/ethernet/cavium/liquidio/lio_main.c:46: error: expected ')' before 'int'
drivers/net/ethernet/cavium/liquidio/lio_main.c:48: error: expected ')' before string constant
drivers/net/ethernet/cavium/liquidio/lio_main.c:53: error: expected ')' before 'int'
drivers/net/ethernet/cavium/liquidio/lio_main.c:54: error: expected ')' before string constant
drivers/net/ethernet/cavium/liquidio/lio_main.c:57: error: expected ')' before 'sizeof'
drivers/net/ethernet/cavium/liquidio/lio_main.c:58: error: expected ')' before string constant
drivers/net/ethernet/cavium/liquidio/lio_main.c:498: warning: data definitionhas no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_main.c:498: error: type defaults to 'int' in declaration of 'MODULE_DEVICE_TABLE'
drivers/net/ethernet/cavium/liquidio/lio_main.c:498: warning: parameter names (without types) in function declaration
drivers/net/ethernet/cavium/liquidio/lio_main.c: In function 'octeon_recv_vf_drv_notice':
drivers/net/ethernet/cavium/liquidio/lio_main.c:4393: error: implicit declaration of function 'try_module_get'
drivers/net/ethernet/cavium/liquidio/lio_main.c:4400: error: implicit declaration of function 'module_put'
drivers/net/ethernet/cavium/liquidio/lio_main.c: At top level:
drivers/net/ethernet/cavium/liquidio/lio_main.c:4670: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_main.c:4670: error: type defaults to 'int' in declaration of 'module_init'
drivers/net/ethernet/cavium/liquidio/lio_main.c:4670: warning: parameter names (without types) in function declaration
drivers/net/ethernet/cavium/liquidio/lio_main.c:4671: warning: data definition has no type or storage class
drivers/net/ethernet/cavium/liquidio/lio_main.c:4671: error: type defaults to 'int' in declaration of 'module_exit'
drivers/net/ethernet/cavium/liquidio/lio_main.c:4671: warning: parameter names (without types) in function declaration

Add linux/module.h to both these files.

drivers/net/ethernet/cavium/liquidio/octeon_console.c:40:31: error: expected ')' before 'int'
drivers/net/ethernet/cavium/liquidio/octeon_console.c:42:4: error: expected ')' before string constant

Add linux/moduleparam.h to this file.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMIPS: Octeon: Remove unnecessary MODULE_*()
Russell King [Tue, 7 Feb 2017 23:03:02 +0000 (15:03 -0800)]
MIPS: Octeon: Remove unnecessary MODULE_*()

octeon-platform.c can not be built as a module for two reasons:

(a) the Makefile doesn't allow it:
    obj-y := cpu.o setup.o octeon-platform.o octeon-irq.o csrc-octeon.o

(b) the multiple *_initcall() statements, each of which are translated
    to a module_init() call when attempting a module build, become
    aliases to init_module().  Having more than one alias will cause a
    build error.

Hence, rather than adding a linux/module.h include, remove the redundant
MODULE_*() from this file.

Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoiscsi: fix build errors when linux/phy*.h is removed from net/dsa.h
Russell King [Tue, 7 Feb 2017 23:03:01 +0000 (15:03 -0800)]
iscsi: fix build errors when linux/phy*.h is removed from net/dsa.h

drivers/target/iscsi/iscsi_target_login.c:1135:7: error: implicit declaration of function 'try_module_get' [-Werror=implicit-function-declaration]

Add linux/module.h to iscsi_target_login.c.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: mvneta: fix build errors when linux/phy*.h is removed from net/dsa.h
Russell King [Tue, 7 Feb 2017 23:03:00 +0000 (15:03 -0800)]
net: mvneta: fix build errors when linux/phy*.h is removed from net/dsa.h

drivers/net/ethernet/marvell/mvneta.c:2694:26: error: storage size of 'status' isn't known
drivers/net/ethernet/marvell/mvneta.c:2695:26: error: storage size of 'changed' isn't known
drivers/net/ethernet/marvell/mvneta.c:2695:9: error: variable 'changed' has initializer but incomplete type
drivers/net/ethernet/marvell/mvneta.c:2709:2: error: implicit declaration of function 'fixed_phy_update_state' [-Werror=implicit-function-declaration]

Add linux/phy_fixed.h to mvneta.c

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: fman: fix build errors when linux/phy*.h is removed from net/dsa.h
Russell King [Tue, 7 Feb 2017 23:02:59 +0000 (15:02 -0800)]
net: fman: fix build errors when linux/phy*.h is removed from net/dsa.h

drivers/net/ethernet/freescale/fman/fman_memac.c:519:21: error: dereferencing pointer to incomplete type 'struct fixed_phy_status'

Add linux/phy_fixed.h to fman_memac.c

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: bgmac: fix build errors when linux/phy*.h is removed from net/dsa.h
Russell King [Tue, 7 Feb 2017 23:02:58 +0000 (15:02 -0800)]
net: bgmac: fix build errors when linux/phy*.h is removed from net/dsa.h

drivers/net/ethernet/broadcom/bgmac.c:1015:17: error: dereferencing pointer to incomplete type 'struct mii_bus'
drivers/net/ethernet/broadcom/bgmac.c:1185:2: error: implicit declaration of function 'phy_start' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1198:2: error: implicit declaration of function 'phy_stop' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1239:9: error: implicit declaration of function 'phy_mii_ioctl' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1389:28: error: 'phy_ethtool_get_link_ksettings' undeclared here (not in a function)
drivers/net/ethernet/broadcom/bgmac.c:1390:28: error: 'phy_ethtool_set_link_ksettings' undeclared here (not in a function)
drivers/net/ethernet/broadcom/bgmac.c:1403:13: error: dereferencing pointer to incomplete type 'struct phy_device'
drivers/net/ethernet/broadcom/bgmac.c:1417:3: error: implicit declaration of function 'phy_print_status' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1424:26: error: storage size of 'fphy_status' isn't known
drivers/net/ethernet/broadcom/bgmac.c:1424:9: error: variable 'fphy_status' has initializer but incomplete type
drivers/net/ethernet/broadcom/bgmac.c:1425:11: warning: excess elements in struct initializer
drivers/net/ethernet/broadcom/bgmac.c:1425:3: error: unknown field 'link' specified in initializer
drivers/net/ethernet/broadcom/bgmac.c:1426:12: note: in expansion of macro 'SPEED_1000'
drivers/net/ethernet/broadcom/bgmac.c:1426:3: error: unknown field 'speed' specified in initializer
drivers/net/ethernet/broadcom/bgmac.c:1427:13: note: in expansion of macro 'DUPLEX_FULL'
drivers/net/ethernet/broadcom/bgmac.c:1427:3: error: unknown field 'duplex' specified in initializer
drivers/net/ethernet/broadcom/bgmac.c:1432:12: error: implicit declaration of function 'fixed_phy_register' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1432:31: error: 'PHY_POLL' undeclared (first use in this function)
drivers/net/ethernet/broadcom/bgmac.c:1438:8: error: implicit declaration of function 'phy_connect_direct' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1439:6: error: 'PHY_INTERFACE_MODE_MII' undeclared (first use in this function)
drivers/net/ethernet/broadcom/bgmac.c:1521:2: error: implicit declaration of function 'phy_disconnect' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1541:15: error: expected declaration specifiers or '...' before string constant

Add linux/phy.h to bgmac.c

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: lan78xx: fix build errors when linux/phy*.h is removed from net/dsa.h
Russell King [Tue, 7 Feb 2017 23:02:57 +0000 (15:02 -0800)]
net: lan78xx: fix build errors when linux/phy*.h is removed from net/dsa.h

drivers/net/usb/lan78xx.c:394:33: sparse: expected ; at end of declaration
drivers/net/usb/lan78xx.c:394:33: sparse: Expected } at end of struct-union-enum-specifier
drivers/net/usb/lan78xx.c:394:33: sparse: got interface
drivers/net/usb/lan78xx.c:403:1: sparse: Expected ; at the end of type declaration
drivers/net/usb/lan78xx.c:403:1: sparse: got }

Add linux/phy.h to lan78xx.c

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: macb: fix build errors when linux/phy*.h is removed from net/dsa.h
Russell King [Tue, 7 Feb 2017 23:02:56 +0000 (15:02 -0800)]
net: macb: fix build errors when linux/phy*.h is removed from net/dsa.h

drivers/net/ethernet/cadence/macb.h:862:33: sparse: expected ; at end of declaration
drivers/net/ethernet/cadence/macb.h:862:33: sparse: Expected } at end of struct-union-enum-specifier
drivers/net/ethernet/cadence/macb.h:862:33: sparse: got phy_interface
drivers/net/ethernet/cadence/macb.h:877:1: sparse: Expected ; at the end of type declaration
drivers/net/ethernet/cadence/macb.h:877:1: sparse: got }
In file included from drivers/net/ethernet/cadence/macb_pci.c:29:0:
drivers/net/ethernet/cadence/macb.h:862:2: error: unknown type name 'phy_interface_t'
     phy_interface_t  phy_interface;
     ^~~~~~~~~~~~~~~

Add linux/phy.h to macb.h

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: cgroups: fix build errors when linux/phy*.h is removed from net/dsa.h
Russell King [Tue, 7 Feb 2017 23:02:55 +0000 (15:02 -0800)]
net: cgroups: fix build errors when linux/phy*.h is removed from net/dsa.h

net/core/netprio_cgroup.c:303:16: error: expected declaration specifiers or '...' before string constant
    MODULE_LICENSE("GPL v2");
                   ^~~~~~~~

Add linux/module.h to fix this.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: sunrpc: fix build errors when linux/phy*.h is removed from net/dsa.h
Russell King [Tue, 7 Feb 2017 23:02:54 +0000 (15:02 -0800)]
net: sunrpc: fix build errors when linux/phy*.h is removed from net/dsa.h

Removing linux/phy.h from net/dsa.h reveals a build error in the sunrpc
code:

net/sunrpc/xprtrdma/svc_rdma_backchannel.c: In function 'xprt_rdma_bc_put':
net/sunrpc/xprtrdma/svc_rdma_backchannel.c:277:2: error: implicit declaration of function 'module_put' [-Werror=implicit-function-declaration]
net/sunrpc/xprtrdma/svc_rdma_backchannel.c: In function 'xprt_setup_rdma_bc':
net/sunrpc/xprtrdma/svc_rdma_backchannel.c:348:7: error: implicit declaration of function 'try_module_get' [-Werror=implicit-function-declaration]

Fix this by adding linux/module.h to svc_rdma_backchannel.c

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'wireless-drivers-next-for-davem-2017-02-09' of git://git.kernel.org/pub...
David S. Miller [Fri, 10 Feb 2017 18:47:52 +0000 (13:47 -0500)]
Merge tag 'wireless-drivers-next-for-davem-2017-02-09' of git://git./linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.11

Mostly smaller changeds and fixes all over, nothing really major
standing out.

Major changes:

iwlwifi

* work on support for new A000 devices continues
* fix 802.11w, which was failing to due an IGTK bug

ath10k

* add debugfs file peer_debug_trigger for debugging firmware
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoxen-netfront: Delete rx_refill_timer in xennet_disconnect_backend()
Boris Ostrovsky [Mon, 30 Jan 2017 17:45:46 +0000 (12:45 -0500)]
xen-netfront: Delete rx_refill_timer in xennet_disconnect_backend()

rx_refill_timer should be deleted as soon as we disconnect from the
backend since otherwise it is possible for the timer to go off before
we get to xennet_destroy_queues(). If this happens we may dereference
queue->rx.sring which is set to NULL in xennet_disconnect_backend().

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
CC: stable@vger.kernel.org
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agospectrum: flower: Treat ETH_P_ALL as a special case and translate for HW
Jiri Pirko [Thu, 9 Feb 2017 13:42:03 +0000 (14:42 +0100)]
spectrum: flower: Treat ETH_P_ALL as a special case and translate for HW

HW does not understand ETH_P_ALL. So treat this special case differently
and translate to 0/0 key/mask. That will allow HW to match all ethertypes.

Fixes: 7aa0f5aa9030 ("mlxsw: spectrum: Implement TC flower offload")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoNET: mkiss: Fix panic
Ralf Baechle [Thu, 9 Feb 2017 13:12:11 +0000 (14:12 +0100)]
NET: mkiss: Fix panic

If a USB-to-serial adapter is unplugged, the driver re-initializes, with
dev->hard_header_len and dev->addr_len set to zero, instead of the correct
values.  If then a packet is sent through the half-dead interface, the
kernel will panic due to running out of headroom in the skb when pushing
for the AX.25 headers resulting in this panic:

[<c0595468>] (skb_panic) from [<c0401f70>] (skb_push+0x4c/0x50)
[<c0401f70>] (skb_push) from [<bf0bdad4>] (ax25_hard_header+0x34/0xf4 [ax25])
[<bf0bdad4>] (ax25_hard_header [ax25]) from [<bf0d05d4>] (ax_header+0x38/0x40 [mkiss])
[<bf0d05d4>] (ax_header [mkiss]) from [<c041b584>] (neigh_compat_output+0x8c/0xd8)
[<c041b584>] (neigh_compat_output) from [<c043e7a8>] (ip_finish_output+0x2a0/0x914)
[<c043e7a8>] (ip_finish_output) from [<c043f948>] (ip_output+0xd8/0xf0)
[<c043f948>] (ip_output) from [<c043f04c>] (ip_local_out_sk+0x44/0x48)

This patch makes mkiss behave like the 6pack driver. 6pack does not
panic.  In 6pack.c sp_setup() (same function name here) the values for
dev->hard_header_len and dev->addr_len are set to the same values as in
my mkiss patch.

[ralf@linux-mips.org: Massages original submission to conform to the usual
standards for patch submissions.]

Signed-off-by: Thomas Osterried <thomas@osterried.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: hns: Fix the device being used for dma mapping during TX
Kejian Yan [Thu, 9 Feb 2017 11:46:15 +0000 (11:46 +0000)]
net: hns: Fix the device being used for dma mapping during TX

This patch fixes the device being used to DMA map skb->data.
Erroneous device assignment causes the crash when SMMU is enabled.
This happens during TX since buffer gets DMA mapped with device
correspondign to net_device and gets unmapped using the device
related to DSAF.

Signed-off-by: Kejian Yan <yankejian@huawei.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'net-checkpatch'
David S. Miller [Fri, 10 Feb 2017 18:37:49 +0000 (13:37 -0500)]
Merge branch 'net-checkpatch'

Tobin C. Harding says:

====================
Whitespace checkpatch fixes

This patch set fixes various whitespace checkpatch errors and warnings.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: Fix checkpatch, Missing a blank line after declarations
tcharding [Thu, 9 Feb 2017 06:56:07 +0000 (17:56 +1100)]
net: Fix checkpatch, Missing a blank line after declarations

This patch fixes multiple occurrences of checkpatch WARNING: Missing
a blank line after declarations.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: Fix checkpatch block comments warnings
tcharding [Thu, 9 Feb 2017 06:56:06 +0000 (17:56 +1100)]
net: Fix checkpatch block comments warnings

Fix multiple occurrences of checkpatch warning. WARNING: Block
comments use * on subsequent lines. Also make comment blocks
more uniform.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: Fix checkpatch whitespace errors
tcharding [Thu, 9 Feb 2017 06:56:05 +0000 (17:56 +1100)]
net: Fix checkpatch whitespace errors

This patch fixes two trivial whitespace errors. Brace should be
on the previous line and trailing statements should be on next line.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: Fix checkpatch WARNING: please, no space before tabs
tcharding [Thu, 9 Feb 2017 06:56:04 +0000 (17:56 +1100)]
net: Fix checkpatch WARNING: please, no space before tabs

This patch fixes multiple occurrences of space before tabs warnings.
More lines of code were moved than required to keep kernel-doc
comments uniform.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'act_pedit-relative-offset'
David S. Miller [Fri, 10 Feb 2017 18:18:34 +0000 (13:18 -0500)]
Merge branch 'act_pedit-relative-offset'

Amir Vadai says:

====================
net/sched: act_pedit: Use offset relative to conventional network headers

Some FW/HW parser APIs are such that they need to get the specific header type (e.g
IPV4 or IPV6, TCP or UDP) and not only the networking level (e.g network or transport).

Enhancing the UAPI to allow for specifying that, would allow the same flows to be
set into both SW and HW.

This patchset also makes pedit more robust. Currently fields offset is specified
by offset relative to the ip header, while using negative offsets for
MAC layer fields.

This series enables the user to set offset relative to the relevant header.

Usage example:
$ tc filter add dev enp0s9 protocol ip parent ffff: \
   flower \
     ip_proto tcp \
    dst_port 80 \
   action \
       pedit munge ip ttl add 0xff \
       pedit munge tcp dport set 8080 \
     pipe action mirred egress redirect dev veth0

Will forward traffic destined to tcp dport 80, while modifying the
destination port to 8080, and decreasing the ttl by one.

I've uploaded a draft for the userspace [2] to make it easier to review and
test the patchset.

[1] - http://patchwork.ozlabs.org/patch/700909/
[2] - git: https://bitbucket.org/av42/iproute2.git
      branch: pedit

Patchset was tested and applied on top of upstream commit bd092ad1463c ("Merge
branch 'remove-__napi_complete_done'")

Thanks,
Amir

Changes since V2:
- Instead of reusing unused bits in existing uapi fields, using new netlink
attributes for the new information. This way new/old user space and new/old
kernel can live together without having misunderstandings.

Changes since V1:
- No changes - V1 was sent and didn't make it for 4.10.
- You asked me [1] why did I use specific header names instead of layers (L2,
L3...), and I explained that it is on purpose, this extra information is
planned to be used by hardware drivers to offload the action.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet/act_pedit: Introduce 'add' operation
Amir Vadai [Tue, 7 Feb 2017 07:56:08 +0000 (09:56 +0200)]
net/act_pedit: Introduce 'add' operation

This command could be useful to inc/dec fields.

For example, to forward any TCP packet and decrease its TTL:
$ tc filter add dev enp0s9 protocol ip parent ffff: \
    flower ip_proto tcp \
    action pedit munge ip ttl add 0xff pipe \
    action mirred egress redirect dev veth0

In the example above, adding 0xff to this u8 field is actually
decreasing it by one, since the operation is masked.

Signed-off-by: Amir Vadai <amir@vadai.me>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet/act_pedit: Support using offset relative to the conventional network headers
Amir Vadai [Tue, 7 Feb 2017 07:56:07 +0000 (09:56 +0200)]
net/act_pedit: Support using offset relative to the conventional network headers

Extend pedit to enable the user setting offset relative to network
headers. This change would enable to work with more complex header
schemes (vs the simple IPv4 case) where setting a fixed offset relative
to the network header is not enough.

After this patch, the action has information about the exact header type
and field inside this header. This information could be used later on
for hardware offloading of pedit.

Backward compatibility was being kept:
1. Old kernel <-> new userspace
2. New kernel <-> old userspace
3. add rule using new userspace <-> dump using old userspace
4. add rule using old userspace <-> dump using new userspace

When using the extended api, new netlink attributes are being used. This
way, operation will fail in (1) and (3) - and no malformed rule be added
or dumped. Of course, new user space that doesn't need the new
functionality can use the old netlink attributes and operation will
succeed.
Since action can support both api's, (2) should work, and it is easy to
write the new user space to have (4) work.

The action is having a strict check that only header types and commands
it can handle are accepted. This way future additions will be much
easier.

Usage example:
$ tc filter add dev enp0s9 protocol ip parent ffff: \
  flower \
    ip_proto tcp \
    dst_port 80 \
  action pedit munge tcp dport set 8080 pipe \
  action mirred egress redirect dev veth0

Will forward tcp port whose original dest port is 80, while modifying
the destination port to 8080.

Signed-off-by: Amir Vadai <amir@vadai.me>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet/skbuff: Introduce skb_mac_offset()
Amir Vadai [Tue, 7 Feb 2017 07:56:06 +0000 (09:56 +0200)]
net/skbuff: Introduce skb_mac_offset()

Introduce skb_mac_offset() that could be used to get mac header offset.

Signed-off-by: Amir Vadai <amir@vadai.me>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'mlxsw-offload-mc-flood'
David S. Miller [Fri, 10 Feb 2017 16:46:42 +0000 (11:46 -0500)]
Merge branch 'mlxsw-offload-mc-flood'

Jiri Pirko says:

====================
mlxsw: Offload MC flood for unregister MC

Nogah says:

When multicast is enabled, the Linux bridge floods unregistered multicast
packets only to ports connected to a multicast router. Devices capable of
offloading the Linux bridge need to be made aware of such ports, for
proper flooding behavior.
On the other hand, when multicast is disabled, such packets should be
flooded to all ports. This patchset aims to fix that, by offloading
the multicast state and the list of multicast router ports.

The first 3 patches adds switchdev attributes to offload this data.
The rest of the patchset add implementation for handling this data in the
mlxsw driver.

The effects this data has on the MDB (namely, when the multicast is
disabled the MDB should be considered as invalid, and when it is enabled, a
packet that is flooded by it should also be flooded to the multicast
routers ports) is subject of future work.

Testing of this patchset included:
Sending 3 mc packets streams, LL, register and unregistered, and checking
that they reached only to the ports that should have received them.
The configs were:
mc disabled, mc without mc router ports and mc with fixed router port.
It was checked for vlan aware bridge, vlan unaware bridge and vlan unaware
bridge with another vlan unaware bridge on the same machine
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Update mc_disabled flag by switchdev attr
Nogah Frankel [Thu, 9 Feb 2017 13:54:49 +0000 (14:54 +0100)]
mlxsw: spectrum: Update mc_disabled flag by switchdev attr

Add a function to update mc_disabled from switchdev attr
SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Extend port_orig_get for bridge devices
Nogah Frankel [Thu, 9 Feb 2017 13:54:48 +0000 (14:54 +0100)]
mlxsw: spectrum: Extend port_orig_get for bridge devices

The function mlxsw_sp_port_orig_get returns the vport from the physical
port if needed, based on the original device.
This patch addresses the case where the original device is a bridge.
If it is vlan unaware bridge, it returns the matching vport. If it is vlan
aware bridge, there is no matching vport, and it returns the original port.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Add an option to flood mc by mc_router_port
Nogah Frankel [Thu, 9 Feb 2017 13:54:47 +0000 (14:54 +0100)]
mlxsw: spectrum: Add an option to flood mc by mc_router_port

The decision whether to flood a multicast packet to a port dependent
on three flags: mc_disabled, mc_router_port, mc_flood.

If mc_disabled is on, the port will be flooded according to mc_flood,
otherwise, according to mc_router_port. To accomplish that, add those
flags into the mlxsw_sp_port struct and update the mc flood table
accordingly.

Update mc_router_port by switchdev attribute
SWITCHDEV_ATTR_ID_PORT_MC_ROUTER_PORT.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Separate bc and mc floods
Nogah Frankel [Thu, 9 Feb 2017 13:54:46 +0000 (14:54 +0100)]
mlxsw: spectrum: Separate bc and mc floods

Break the bm (broadcast-multicast) into two tables, one for broadcast
(and link local multicast that behaves like bc) and one for unknown
multicasts.
Add a bool into mlxsw_sp_port named mc_flood that reflect the value this
port should have in the mc flood table (currently, always 1);

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Change max vfid
Nogah Frankel [Thu, 9 Feb 2017 13:54:45 +0000 (14:54 +0100)]
mlxsw: spectrum: Change max vfid

A user that wants many bridges will use 1.Q bridge which are scalable.
One can have as many 1.Q bridges as vfids.
This patch sets their number to 1k, which is a reasonably large number.
This change is done here because the next patches will add a new flood
table, and without it, it will increase the overall size of the flood
tables dramatically.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Make port flood update more generic
Nogah Frankel [Thu, 9 Feb 2017 13:54:44 +0000 (14:54 +0100)]
mlxsw: spectrum: Make port flood update more generic

Currently, there is a per port flood update function only for the UC
table. Make the function  more generic by changing the table type to be
an input.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agomlxsw: spectrum: Break flood set func to be per table
Nogah Frankel [Thu, 9 Feb 2017 13:54:43 +0000 (14:54 +0100)]
mlxsw: spectrum: Break flood set func to be per table

Currently, the flood set function can't operate on only one table, but
sets both uc_flood and mb_flood together.
This patch creates a function that sets the flood state per table.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoswitchdev: bridge: Offload mc router ports
Nogah Frankel [Thu, 9 Feb 2017 13:54:42 +0000 (14:54 +0100)]
switchdev: bridge: Offload mc router ports

Offload the mc router ports list, whenever it is being changed.
It is done because in some cases mc packets needs to be flooded to all
the ports in this list.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobridge: mcast: Merge the mc router ports deletions to one function
Nogah Frankel [Thu, 9 Feb 2017 13:54:41 +0000 (14:54 +0100)]
bridge: mcast: Merge the mc router ports deletions to one function

There are three places where a port gets deleted from the mc router port
list. This patch join the actual deletion to one function.
It will be helpful for later patch that will offload changes in the mc
router ports list.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoswitchdev: bridge: Offload multicast disabled
Nogah Frankel [Thu, 9 Feb 2017 13:54:40 +0000 (14:54 +0100)]
switchdev: bridge: Offload multicast disabled

Offload multicast disabled flag, for more accurate mc flood behavior:
When it is on, the mdb should be ignored.
When it is off, unregistered mc packets should be flooded to mc router
ports.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'sched-cls_api-small-cleanup'
David S. Miller [Fri, 10 Feb 2017 16:38:10 +0000 (11:38 -0500)]
Merge branch 'sched-cls_api-small-cleanup'

Jiri Pirko says:

====================
sched: cls_api: small cleanup

This patchset makes couple of things in cls_api code a bit nicer and easier
for reader to digest.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosched: check negative err value to safe one level of indent
Jiri Pirko [Thu, 9 Feb 2017 13:39:00 +0000 (14:39 +0100)]
sched: check negative err value to safe one level of indent

As it is more common, check err for !0. That allows to safe one level of
indentation and makes the code easier to read. Also, make 'next' variable
global in function as it is used twice.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosched: add missing curly braces in else branch in tc_ctl_tfilter
Jiri Pirko [Thu, 9 Feb 2017 13:38:59 +0000 (14:38 +0100)]
sched: add missing curly braces in else branch in tc_ctl_tfilter

Curly braces need to be there, for stylistic reasons.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosched: move err set right before goto errout in tc_ctl_tfilter
Jiri Pirko [Thu, 9 Feb 2017 13:38:58 +0000 (14:38 +0100)]
sched: move err set right before goto errout in tc_ctl_tfilter

This makes the reader to know right away what is the error value.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosched: push TC filter protocol creation into a separate function
Jiri Pirko [Thu, 9 Feb 2017 13:38:57 +0000 (14:38 +0100)]
sched: push TC filter protocol creation into a separate function

Make the long function tc_ctl_tfilter a little bit shorter and easier to
read. Also make the creation of filter proto symmetric to destruction.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api
Jiri Pirko [Thu, 9 Feb 2017 13:38:56 +0000 (14:38 +0100)]
sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api

Creation is done in this file, move destruction to be at the same place.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosched: rename tcf_destroy to tcf_destroy_proto
Jiri Pirko [Thu, 9 Feb 2017 13:38:55 +0000 (14:38 +0100)]
sched: rename tcf_destroy to tcf_destroy_proto

This function destroys TC filter protocol, not TC filter. So name it
accordingly.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>