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  1. 14 Jan, 2018 7 commits
  3. 12 Jan, 2018 15 commits
  5. 11 Jan, 2018 14 commits
    • David S. Miller's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next · 8c2e6c90
      David S. Miller authored 
      Daniel Borkmann says:

====================
pull-request: bpf-next 2018-01-11

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Various BPF related improvements and fixes to nfp driver: i) do
   not register XDP RXQ structure to control queues, ii) round up
   program stack size to word size for nfp, iii) restrict MTU changes
   when BPF offload is active, iv) add more fully featured relocation
   support to JIT, v) add support for signed compare instructions to
   the nfp JIT, vi) export and reuse verfier log routine for nfp, and
   many more, from Jakub, Quentin and Nic.

2) Fix a syzkaller reported GPF in BPF's copy_verifier_state() when
   we hit kmalloc failure path, from Alexei.

3) Add two follow-up fixes for the recent XDP RXQ series: i) kvzalloc()
   allocated memory was only kfree()'ed, and ii) fix a memory leak where
   RX queue was not freed in netif_free_rx_queues(), from Jakub.

4) Add a sample for transferring XDP meta data into the skb, here it
   is used for setting skb->mark with the buffer from XDP, from Jesper.
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8c2e6c90
    • David S. Miller's avatar
      Merge branch 'for-upstream' of... · 3d93e337
      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 2018-01-11

Here's likely the last bluetooth-next pull request for the 4.16 kernel.

 - Added support for Bluetooth on 2015+ MacBook (Pro)
 - Fix to QCA Rome suspend/resume handling
 - Two new QCA_ROME USB IDs in btusb
 - A few other minor fixes

Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      3d93e337
    • Wei Yongjun's avatar
      net: phy: mdio-bcm-unimac: fix potential NULL dereference in unimac_mdio_probe() · 297a6961
      Wei Yongjun authored 
      platform_get_resource() may fail and return NULL, so we should
better check it's return value to avoid a NULL pointer dereference
a bit later in the code.

This is detected by Coccinelle semantic patch.

@@
expression pdev, res, n, t, e, e1, e2;
@@

res = platform_get_resource(pdev, t, n);
+ if (!res)
+   return -EINVAL;
... when != res == NULL
e = devm_ioremap(e1, res->start, e2);
Signed-off-by: default avatarWei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      297a6961
    • Wei Yongjun's avatar
      net: socionext: Fix error return code in netsec_netdev_open() · ecb10288
      Wei Yongjun authored 
      Fix to return error code -ENODEV from the of_phy_connect() error
handling case instead of 0, as done elsewhere in this function.

Fixes: 533dd11a ("net: socionext: Add Synquacer NetSec driver")
Signed-off-by: default avatarWei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ecb10288
    • Arnd Bergmann's avatar
      net: socionext: include linux/io.h to fix build · d9f52372
      Arnd Bergmann authored 
      I ran into a randconfig build failure:

drivers/net/ethernet/socionext/netsec.c: In function 'netsec_probe':
drivers/net/ethernet/socionext/netsec.c:1583:17: error: implicit declaration of function 'devm_ioremap'; did you mean 'ioremap'? [-Werror=implicit-function-declaration]

Including linux/io.h directly fixes this.

Fixes: 533dd11a ("net: socionext: Add Synquacer NetSec driver")
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d9f52372
    • David S. Miller's avatar
      Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue · 532b5aa0
      David S. Miller authored 
      Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2018-01-10

This series contains updates to i40e and i40evf only.

Alice adds the displaying of priority xon/xoff packet stats, since we
were already keeping track of them.  Based on the recent changes, bump
the driver versions.

Jake changes how the driver determines whether or not the device is
currently up to resolve the possible issue of freeing data structures
and other memory before they have been fully allocated.  Refactored
the driver to simplify the locking behavior and to consistently use
spinlocks instead of an overloaded bit lock to protect MAC and filter
lists.  Created a helper function which can convert the AdminQ link
speed definition into a virtchnl definition.

Colin Ian King cleans up a redundant variable initialization.

Alex cleans up the driver to stop clearing the pending bit array for
each vector manually, since it is prone to dropping an interrupt and
based on the hardware specs, the pending bit array will be cleared
automatically in MSI-X mode.  Cleaned up flags for promiscuous mode to
resolve an issue where enabling & disabling promiscuous mode on a VF
would leave us in a high polling rate for the adminq task.  Cleaned up
code that was prone to race issues.

Jingjing renames pipeline personalization profile (ppp) to dynamic
device personalization (ddp) because it was being confused with the
well known point to point protocol.  Also removed checks for "track_id"
being zero, since it is valid for it to be zero for profiles that do
not have any 'write' commands.

v2: cleaned up commit message for patch 12 based on feedback from Sergei
    Shtylyov and Alex Duyck
v3: dropped patch 15 from the original series while Mariusz Stachura
    works on the changes that Jakub Kicinski has suggested
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      532b5aa0
    • Nathan Fontenot's avatar
      ibmvnic: Don't handle RX interrupts when not up. · 09fb35ea
      Nathan Fontenot authored 
      Initiating a kdump via the command line can cause a pending interrupt
to be handled by the ibmvnic driver when initializing the sub-CRQ
irqs during driver initialization.

NIP [d000000000ca34f0] ibmvnic_interrupt_rx+0x40/0xd0 [ibmvnic]
LR [c000000008132ef0] __handle_irq_event_percpu+0xa0/0x2f0
Call Trace:
[c000000047fcfde0] [c000000008132ef0] __handle_irq_event_percpu+0xa0/0x2f0
[c000000047fcfea0] [c00000000813317c] handle_irq_event_percpu+0x3c/0x90
[c000000047fcfee0] [c00000000813323c] handle_irq_event+0x6c/0xd0
[c000000047fcff10] [c0000000081385e0] handle_fasteoi_irq+0xf0/0x250
[c000000047fcff40] [c0000000081320a0] generic_handle_irq+0x50/0x80
[c000000047fcff60] [c000000008014984] __do_irq+0x84/0x1d0
[c000000047fcff90] [c000000008027564] call_do_irq+0x14/0x24
[c00000003c92af00] [c000000008014b70] do_IRQ+0xa0/0x120
[c00000003c92af50] [c000000008002594] hardware_interrupt_common+0x114/0x180
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      09fb35ea
    • Ganesh Goudar's avatar
      cxgb4: implement ndo_features_check · 4621ffd6
      Ganesh Goudar authored 
      Signed-off-by: default avatarGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4621ffd6
    • Ganesh Goudar's avatar
      cxgb4: add support for vxlan segmentation offload · d0a1299c
      Ganesh Goudar authored 
      add changes to t4_eth_xmit to enable vxlan segmentation
offload support.

Original work by: Santosh Rastapur <santosh@chelsio.com>
Signed-off-by: default avatarGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d0a1299c
    • Ganesh Goudar's avatar
      cxgb4: implement udp tunnel callbacks · 846eac3f
      Ganesh Goudar authored 
      Implement ndo_udp_tunnel_add and ndo_udp_tunnel_del
to support vxlan tunnelling.

Original work by: Santosh Rastapur <santosh@chelsio.com>
Signed-off-by: default avatarGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      846eac3f
    • Ganesh Goudar's avatar
      cxgb4: add data structures to support vxlan · ef0fd85a
      Ganesh Goudar authored 
      Add data structures and macros to be used in vxlan
offload.

Original work by: Santosh Rastapur <santosh@chelsio.com>
Signed-off-by: default avatarGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ef0fd85a
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · cbd0a6a2
      Linus Torvalds authored 
      Pull vfs regression fix from Al Viro/

Fix a leak in socket() introduced by commit 8e1611e2 ("make
sock_alloc_file() do sock_release() on failures").

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  Fix a leak in socket(2) when we fail to allocate a file descriptor.
      cbd0a6a2
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 64fce444
      Linus Torvalds authored 
      Pull networking fixes from David Miller:

 1) BPF speculation prevention and BPF_JIT_ALWAYS_ON, from Alexei
    Starovoitov.

 2) Revert dev_get_random_name() changes as adjust the error code
    returns seen by userspace definitely breaks stuff.

 3) Fix TX DMA map/unmap on older iwlwifi devices, from Emmanuel
    Grumbach.

 4) From wrong AF family when requesting sock diag modules, from Andrii
    Vladyka.

 5) Don't add new ipv6 routes attached to the null_entry, from Wei Wang.

 6) Some SCTP sockopt length fixes from Marcelo Ricardo Leitner.

 7) Don't leak when removing VLAN ID 0, from Cong Wang.

 8) Hey there's a potential leak in ipv6_make_skb() too, from Eric
    Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits)
  ipv6: sr: fix TLVs not being copied using setsockopt
  ipv6: fix possible mem leaks in ipv6_make_skb()
  mlxsw: spectrum_qdisc: Don't use variable array in mlxsw_sp_tclass_congestion_enable
  mlxsw: pci: Wait after reset before accessing HW
  nfp: always unmask aux interrupts at init
  8021q: fix a memory leak for VLAN 0 device
  of_mdio: avoid MDIO bus removal when a PHY is missing
  caif_usb: use strlcpy() instead of strncpy()
  doc: clarification about setting SO_ZEROCOPY
  net: gianfar_ptp: move set_fipers() to spinlock protecting area
  sctp: make use of pre-calculated len
  sctp: add a ceiling to optlen in some sockopts
  sctp: GFP_ATOMIC is not needed in sctp_setsockopt_events
  bpf: introduce BPF_JIT_ALWAYS_ON config
  bpf: avoid false sharing of map refcount with max_entries
  ipv6: remove null_entry before adding default route
  SolutionEngine771x: add Ether TSU resource
  SolutionEngine771x: fix Ether platform data
  docs-rst: networking: wire up msg_zerocopy
  net: ipv4: emulate READ_ONCE() on ->hdrincl bit-field in raw_sendmsg()
  ...
      64fce444
    • Jesper Dangaard Brouer's avatar
      samples/bpf: xdp2skb_meta shows transferring info from XDP to SKB · 36e04a2d
      Jesper Dangaard Brouer authored 
      Creating a bpf sample that shows howto use the XDP 'data_meta'
infrastructure, created by Daniel Borkmann.  Very few drivers support
this feature, but I wanted a functional sample to begin with, when
working on adding driver support.

XDP data_meta is about creating a communication channel between BPF
programs.  This can be XDP tail-progs, but also other SKB based BPF
hooks, like in this case the TC clsact hook. In this sample I show
that XDP can store info named "mark", and TC/clsact chooses to use
this info and store it into the skb->mark.

It is a bit annoying that XDP and TC samples uses different tools/libs
when attaching their BPF hooks.  As the XDP and TC programs need to
cooperate and agree on a struct-layout, it is best/easiest if the two
programs can be contained within the same BPF restricted-C file.

As the bpf-loader, I choose to not use bpf_load.c (or libbpf), but
instead wrote a bash shell scripted named xdp2skb_meta.sh, which
demonstrate howto use the iproute cmdline tools 'tc' and 'ip' for
loading BPF programs.  To make it easy for first time users, the shell
script have command line parsing, and support --verbose and --dry-run
mode, if you just want to see/learn the tc+ip command syntax:

 # ./xdp2skb_meta.sh --dev ixgbe2 --dry-run
 # Dry-run mode: enable VERBOSE and don't call TC+IP
 tc qdisc del dev ixgbe2 clsact
 tc qdisc add dev ixgbe2 clsact
 tc filter add dev ixgbe2 ingress prio 1 handle 1 bpf da obj ./xdp2skb_meta_kern.o sec tc_mark
 # Flush XDP on device: ixgbe2
 ip link set dev ixgbe2 xdp off
 ip link set dev ixgbe2 xdp obj ./xdp2skb_meta_kern.o sec xdp_mark
Signed-off-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
      36e04a2d
  7. 10 Jan, 2018 4 commits
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