1. 07 Apr, 2015 20 commits
  2. 06 Apr, 2015 10 commits
    • Linus Torvalds's avatar
      Linux 4.0-rc7 · f22e6e84
      Linus Torvalds authored
      f22e6e84
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 442bb4ba
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) In TCP, don't register an FRTO for cumulatively ACK'd data that was
          previously SACK'd, from Neal Cardwell.
      
       2) Need to hold RNL mutex in ipv4 multicast code namespace cleanup,
          from Cong WANG.
      
       3) Similarly we have to hold RNL mutex for fib_rules_unregister(), also
          from Cong WANG.
      
       4) Revert and rework netns nsid allocation fix, from Nicolas Dichtel.
      
       5) When we encapsulate for a tunnel device, skb->sk still points to the
          user socket.  So this leads to cases where we retraverse the
          ipv4/ipv6 output path with skb->sk being of some other address
          family (f.e. AF_PACKET).  This can cause things to crash since the
          ipv4 output path is dereferencing an AF_PACKET socket as if it were
          an ipv4 one.
      
          The short term fix for 'net' and -stable is to elide these socket
          checks once we've entered an encapsulation sequence by testing
          xmit_recursion.
      
          Longer term we have a better solution wherein we pass the tunnel's
          socket down through the output paths, but that is way too invasive
          for 'net' and -stable.
      
          From Hannes Frederic Sowa.
      
       6) l2tp_init() failure path forgets to unregister per-net ops, from
          Cong WANG.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
        net/mlx4_core: Fix error message deprecation for ConnectX-2 cards
        net: dsa: fix filling routing table from OF description
        l2tp: unregister l2tp_net_ops on failure path
        mvneta: dont call mvneta_adjust_link() manually
        ipv6: protect skb->sk accesses from recursive dereference inside the stack
        netns: don't allocate an id for dead netns
        Revert "netns: don't clear nsid too early on removal"
        ip6mr: call del_timer_sync() in ip6mr_free_table()
        net: move fib_rules_unregister() under rtnl lock
        ipv4: take rtnl_lock and mark mrt table as freed on namespace cleanup
        tcp: fix FRTO undo on cumulative ACK of SACKed range
        xen-netfront: transmit fully GSO-sized packets
      442bb4ba
    • Jack Morgenstein's avatar
      net/mlx4_core: Fix error message deprecation for ConnectX-2 cards · fde913e2
      Jack Morgenstein authored
      Commit 1daa4303 ("net/mlx4_core: Deprecate error message at
      ConnectX-2 cards startup to debug") did the deprecation only for port 1
      of the card. Need to deprecate for port 2 as well.
      
      Fixes: 1daa4303 ("net/mlx4_core: Deprecate error message at ConnectX-2 cards startup to debug")
      Signed-off-by: default avatarJack Morgenstein <jackm@dev.mellanox.co.il>
      Signed-off-by: default avatarAmir Vadai <amirv@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      fde913e2
    • Pavel Nakonechny's avatar
      net: dsa: fix filling routing table from OF description · 30303813
      Pavel Nakonechny authored
      According to description in 'include/net/dsa.h', in cascade switches
      configurations where there are more than one interconnected devices,
      'rtable' array in 'dsa_chip_data' structure is used to indicate which
      port on this switch should be used to send packets to that are destined
      for corresponding switch.
      
      However, dsa_of_setup_routing_table() fills 'rtable' with port numbers
      of the _target_ switch, but not current one.
      
      This commit removes redundant devicetree parsing and adds needed port
      number as a function argument. So dsa_of_setup_routing_table() now just
      looks for target switch number by parsing parent of 'link' device node.
      
      To remove possible misunderstandings with the way of determining target
      switch number, a corresponding comment was added to the source code and
      to the DSA device tree bindings documentation file.
      
      This was tested on a custom board with two Marvell 88E6095 switches with
      following corresponding routing tables: { -1, 10 } and { 8, -1 }.
      Signed-off-by: default avatarPavel Nakonechny <pavel.nakonechny@skitlab.ru>
      Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      30303813
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 9e441639
      Linus Torvalds authored
      Pull input fixes from Dmitry Torokhov:
       "Updates for the input subsystem - two more tweaks for ALPS driver to
        work out kinks after splitting the touchpad, trackstick, and potential
        external PS/2 mouse into separate input devices.
      
        Changes to support ALPS SS4 devices (protocol V8) will be coming in
        4.1..."
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: alps - document stick behavior for protocol V2
        Input: alps - report V2 Dualpoint Stick events via the right evdev node
        Input: alps - report interleaved bare PS/2 packets via dev3
      9e441639
    • WANG Cong's avatar
      67e04c29
    • Michael S. Tsirkin's avatar
      virtio: document queue state logic · 60302ff6
      Michael S. Tsirkin authored
      commit d631b94e
          virtio: change comment in transmit
      
      started clarifying the logic behind queue state management,
      but introduced an inaccuracy: TX_BUSY does not cause
      a BUG message.
      
      Clean this up some more, explaining the tradeoffs in detail.
      Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      60302ff6
    • Alexei Starovoitov's avatar
      tc: bpf: add checksum helpers · 91bc4822
      Alexei Starovoitov authored
      Commit 608cd71a ("tc: bpf: generalize pedit action") has added the
      possibility to mangle packet data to BPF programs in the tc pipeline.
      This patch adds two helpers bpf_l3_csum_replace() and bpf_l4_csum_replace()
      for fixing up the protocol checksums after the packet mangling.
      
      It also adds 'flags' argument to bpf_skb_store_bytes() helper to avoid
      unnecessary checksum recomputations when BPF programs adjusting l3/l4
      checksums and documents all three helpers in uapi header.
      
      Moreover, a sample program is added to show how BPF programs can make use
      of the mangle and csum helpers.
      Signed-off-by: default avatarAlexei Starovoitov <ast@plumgrid.com>
      Acked-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      91bc4822
    • Stas Sergeev's avatar
      mvneta: dont call mvneta_adjust_link() manually · ecf7b361
      Stas Sergeev authored
      mvneta_adjust_link() is a callback for of_phy_connect() and should
      not be called directly. The result of calling it directly is as below:
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ecf7b361
    • hannes@stressinduktion.org's avatar
      ipv6: protect skb->sk accesses from recursive dereference inside the stack · f60e5990
      hannes@stressinduktion.org authored
      We should not consult skb->sk for output decisions in xmit recursion
      levels > 0 in the stack. Otherwise local socket settings could influence
      the result of e.g. tunnel encapsulation process.
      
      ipv6 does not conform with this in three places:
      
      1) ip6_fragment: we do consult ipv6_npinfo for frag_size
      
      2) sk_mc_loop in ipv6 uses skb->sk and checks if we should
         loop the packet back to the local socket
      
      3) ip6_skb_dst_mtu could query the settings from the user socket and
         force a wrong MTU
      
      Furthermore:
      In sk_mc_loop we could potentially land in WARN_ON(1) if we use a
      PF_PACKET socket ontop of an IPv6-backed vxlan device.
      
      Reuse xmit_recursion as we are currently only interested in protecting
      tunnel devices.
      
      Cc: Jiri Pirko <jiri@resnulli.us>
      Signed-off-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f60e5990
  3. 05 Apr, 2015 3 commits
  4. 04 Apr, 2015 7 commits
    • Linus Torvalds's avatar
      Merge tag 'usb-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · f8b3d8a5
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are some small USB fixes and new device ids for 4.0-rc6.  Nothing
        major, some xhci fixes for reported problems, and some usb-serial
        device ids.
      
        All have been in linux-next for a while"
      
      * tag 'usb-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
        USB: ftdi_sio: Use jtag quirk for SNAP Connect E10
        usb: isp1760: fix spin unlock in the error path of isp1760_udc_start
        usb: xhci: apply XHCI_AVOID_BEI quirk to all Intel xHCI controllers
        usb: xhci: handle Config Error Change (CEC) in xhci driver
        USB: keyspan_pda: add new device id
        USB: ftdi_sio: Added custom PID for Synapse Wireless product
      f8b3d8a5
    • David S. Miller's avatar
      Merge branch 'nf-hook-compress' · 5888b93b
      David S. Miller authored
      netfilter: Compress hook function signatures.
      
      Currently netfilter hooks have a function signature that is huge and
      has many arguments.  This propagates from the hook entry points down
      into the individual hook implementations themselves.
      
      This means that if, for example, we want to change the type of one of
      these arguments then we have to touch hundreds of locations.
      
      The main initial motivation behind this is that we'd like to change
      the signature of "okfn" so that a socket pointer can be passed in (and
      reference counted properly) for the sake of using the proper socket
      context in the case of tunnels whilst not releasing the top level user
      socket from skb->sk (and thus releasing it's socket memory quota
      usage) in order to accomodate this.
      
      This also makes it clear who actually uses 'okfn', nf_queue().  It is
      absolutely critical to make this obvious because any user of 'okfn'
      down in these hook chains have the be strictly audited for
      escapability.  Specifically, escapability of references to objects
      outside of the packet processing path.  And that's exactly what
      nf_queue() does via it's packet reinjection framework.
      
      In fact this points out a bug in Jiri's original attempt to push the
      socket pointer down through netfilter's okfn.  It didn't grab and drop
      a reference to the socket in net/netfilter/nf_queue.c as needed.
      
      Furthermore, so many code paths are simplified, and should in fact be
      more efficient because we aren't passing in arguments that often are
      simply not used by the netfilter hook at all.
      
      Further simplifications are probably possible, but this series takes
      care of the main cases.
      
      Unfortunately I couldn't convert ebt_do_table() because ebtables is
      complete and utter crap and uses ebt_do_table() outside of the hook
      call chains.  But that should not be news to anyone.
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      Acked-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      5888b93b
    • Linus Torvalds's avatar
      Merge tag 'staging-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 8eb6dcf9
      Linus Torvalds authored
      Pull staging driver fixes from Greg KH:
       "Here are some staging driver fixes, well, really all just IIO driver
        fixes, for 4.0-rc6.  They fix issues that have been reported with
        these drivers.
      
        All of these patches have been in linux-next for a while"
      
      * tag 'staging-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        iio: imu: Use iio_trigger_get for indio_dev->trig assignment
        iio: adc: vf610: use ADC clock within specification
        iio/adc/cc10001_adc.c: Fix !HAS_IOMEM build
        iio: core: Fix double free.
        iio:inv-mpu6050: Fix inconsistency for the scale channel
        staging: iio: dummy: Fix undefined symbol build error
        iio: inv_mpu6050: Clear timestamps fifo while resetting hardware fifo
        staging: iio: hmc5843: Set iio name property in sysfs
        iio: bmc150: change sampling frequency
        iio: fix drivers that check buffer->scan_mask
      8eb6dcf9
    • Linus Torvalds's avatar
      Merge tag 'tty-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · eca8258b
      Linus Torvalds authored
      Pull tty/serial fixes from Greg KH:
       "Here are 3 serial driver fixes for 4.0-rc6.  They fix some reported
        issues with the samsung and fsl_lpuart drivers.
      
        All have been in linux-next for a while"
      
      * tag 'tty-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        tty: serial: fsl_lpuart: clear receive flag on FIFO flush
        tty: serial: fsl_lpuart: specify transmit FIFO size
        serial: samsung: Clear operation mode on UART shutdown
      eca8258b
    • David S. Miller's avatar
    • David S. Miller's avatar
    • David S. Miller's avatar