1. 28 Nov, 2016 18 commits
    • Roi Dayan's avatar
      net/sched: Export tc_tunnel_key so its UAPI accessible · faa1fa54
      Roi Dayan authored
      Export tc_tunnel_key so it can be used from user space.
      Signed-off-by: default avatarRoi Dayan <roid@mellanox.com>
      Reviewed-by: default avatarAmir Vadai <amir@vadai.me>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      faa1fa54
    • Borislav Petkov's avatar
      amd-xgbe: Fix unused suspend handlers build warning · 91eefaab
      Borislav Petkov authored
      Fix:
      
        drivers/net/ethernet/amd/xgbe/xgbe-main.c:835:12: warning: ‘xgbe_suspend’ defined
          but not used [-Wunused-function]
        drivers/net/ethernet/amd/xgbe/xgbe-main.c:855:12: warning: ‘xgbe_resume’ defined
          but not used [-Wunused-function]
      
      I see it during randconfig builds here.
      Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
      Cc: Tom Lendacky <thomas.lendacky@amd.com>
      Cc: netdev@vger.kernel.org
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      91eefaab
    • Julian Wollrath's avatar
    • David S. Miller's avatar
      Merge branch 'fix-RTL8211F-TX-delay-handling' · 68c1644f
      David S. Miller authored
      Martin Blumenstingl says:
      
      ====================
      net: phy: realtek: fix RTL8211F TX-delay handling
      
      The RTL8211F PHY driver currently enables the TX-delay only when the
      phy-mode is PHY_INTERFACE_MODE_RGMII. This is incorrect, because there
      are three RGMII variations of the phy-mode which explicitly request the
      PHY to enable the RX and/or TX delay, while PHY_INTERFACE_MODE_RGMII
      specifies that the PHY should disable the RX and/or TX delays.
      
      Additionally to the RTL8211F PHY driver change this contains a small
      update to the phy-mode documentation to clarify the purpose of the
      RGMII phy-modes.
      While this may not be perfect yet it's at least a start. Please feel
      free to drop this patch from this series and send an improved version
      yourself.
      
      These patches are the results of recent discussions, see [0]
      
      [0] http://lists.infradead.org/pipermail/linux-amlogic/2016-November/001688.html
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      68c1644f
    • Martin Blumenstingl's avatar
      net: phy: realtek: fix enabling of the TX-delay for RTL8211F · e3230494
      Martin Blumenstingl authored
      The old logic always enabled the TX-delay when the phy-mode was set to
      PHY_INTERFACE_MODE_RGMII. There are dedicated phy-modes which tell the
      PHY driver to enable the RX and/or TX delays:
      - PHY_INTERFACE_MODE_RGMII should disable the RX and TX delay in the
        PHY (if required, the MAC should add the delays in this case)
      - PHY_INTERFACE_MODE_RGMII_ID should enable RX and TX delay in the PHY
      - PHY_INTERFACE_MODE_RGMII_TXID should enable the TX delay in the PHY
      - PHY_INTERFACE_MODE_RGMII_RXID should enable the RX delay in the PHY
        (currently not supported by RTL8211F)
      
      With this patch we enable the TX delay for PHY_INTERFACE_MODE_RGMII_ID
      and PHY_INTERFACE_MODE_RGMII_TXID.
      Additionally we now explicity disable the TX-delay, which seems to be
      enabled automatically after a hard-reset of the PHY (by triggering it's
      reset pin) to get a consistent state (as defined by the phy-mode).
      
      This fixes a compatibility problem with some SoCs where the TX-delay was
      also added by the MAC. With the TX-delay being applied twice the TX
      clock was off and TX traffic was broken or very slow (<10Mbit/s) on
      1000Mbit/s links.
      Signed-off-by: default avatarMartin Blumenstingl <martin.blumenstingl@googlemail.com>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e3230494
    • Martin Blumenstingl's avatar
      Documentation: devicetree: clarify usage of the RGMII phy-modes · e5f3a4a5
      Martin Blumenstingl authored
      RGMII requires special RX and/or TX delays depending on the actual
      hardware circuit/wiring. These delays can be added by the MAC, the PHY
      or the designer of the circuit (the latter means that no delay has to
      be added by PHY or MAC).
      There are 4 RGMII phy-modes used describe where a delay should be
      applied:
      - rgmii: the RX and TX delays are either added by the MAC (where the
        exact delay is typically configurable, and can be turned off when no
        extra delay is needed) or not needed at all (because the hardware
        wiring adds the delay already). The PHY should neither add the RX nor
        TX delay in this case.
      - rgmii-rxid: configures the PHY to enable the RX delay. The MAC should
        not add the RX delay in this case.
      - rgmii-txid: configures the PHY to enable the TX delay. The MAC should
        not add the TX delay in this case.
      - rgmii-id: combines rgmii-rxid and rgmii-txid and thus configures the
        PHY to enable the RX and TX delays. The MAC should neither add the RX
        nor TX delay in this case.
      
      Document these cases in the ethernet.txt documentation to make it clear
      when to use each mode.
      If applied incorrectly one might end up with MAC and PHY both enabling
      for example the TX delay, which breaks ethernet TX traffic on 1000Mbit/s
      links.
      Signed-off-by: default avatarMartin Blumenstingl <martin.blumenstingl@googlemail.com>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e5f3a4a5
    • Daniel Borkmann's avatar
      net, sched: respect rcu grace period on cls destruction · d9363774
      Daniel Borkmann authored
      Roi reported a crash in flower where tp->root was NULL in ->classify()
      callbacks. Reason is that in ->destroy() tp->root is set to NULL via
      RCU_INIT_POINTER(). It's problematic for some of the classifiers, because
      this doesn't respect RCU grace period for them, and as a result, still
      outstanding readers from tc_classify() will try to blindly dereference
      a NULL tp->root.
      
      The tp->root object is strictly private to the classifier implementation
      and holds internal data the core such as tc_ctl_tfilter() doesn't know
      about. Within some classifiers, such as cls_bpf, cls_basic, etc, tp->root
      is only checked for NULL in ->get() callback, but nowhere else. This is
      misleading and seemed to be copied from old classifier code that was not
      cleaned up properly. For example, d3fa76ee ("[NET_SCHED]: cls_basic:
      fix NULL pointer dereference") moved tp->root initialization into ->init()
      routine, where before it was part of ->change(), so ->get() had to deal
      with tp->root being NULL back then, so that was indeed a valid case, after
      d3fa76ee, not really anymore. We used to set tp->root to NULL long
      ago in ->destroy(), see 47a1a1d4 ("pkt_sched: remove unnecessary xchg()
      in packet classifiers"); but the NULLifying was reintroduced with the
      RCUification, but it's not correct for every classifier implementation.
      
      In the cases that are fixed here with one exception of cls_cgroup, tp->root
      object is allocated and initialized inside ->init() callback, which is always
      performed at a point in time after we allocate a new tp, which means tp and
      thus tp->root was not globally visible in the tp chain yet (see tc_ctl_tfilter()).
      Also, on destruction tp->root is strictly kfree_rcu()'ed in ->destroy()
      handler, same for the tp which is kfree_rcu()'ed right when we return
      from ->destroy() in tcf_destroy(). This means, the head object's lifetime
      for such classifiers is always tied to the tp lifetime. The RCU callback
      invocation for the two kfree_rcu() could be out of order, but that's fine
      since both are independent.
      
      Dropping the RCU_INIT_POINTER(tp->root, NULL) for these classifiers here
      means that 1) we don't need a useless NULL check in fast-path and, 2) that
      outstanding readers of that tp in tc_classify() can still execute under
      respect with RCU grace period as it is actually expected.
      
      Things that haven't been touched here: cls_fw and cls_route. They each
      handle tp->root being NULL in ->classify() path for historic reasons, so
      their ->destroy() implementation can stay as is. If someone actually
      cares, they could get cleaned up at some point to avoid the test in fast
      path. cls_u32 doesn't set tp->root to NULL. For cls_rsvp, I just added a
      !head should anyone actually be using/testing it, so it at least aligns with
      cls_fw and cls_route. For cls_flower we additionally need to defer rhashtable
      destruction (to a sleepable context) after RCU grace period as concurrent
      readers might still access it. (Note that in this case we need to hold module
      reference to keep work callback address intact, since we only wait on module
      unload for all call_rcu()s to finish.)
      
      This fixes one race to bring RCU grace period guarantees back. Next step
      as worked on by Cong however is to fix 1e052be6 ("net_sched: destroy
      proto tp when all filters are gone") to get the order of unlinking the tp
      in tc_ctl_tfilter() for the RTM_DELTFILTER case right by moving
      RCU_INIT_POINTER() before tcf_destroy() and let the notification for
      removal be done through the prior ->delete() callback. Both are independant
      issues. Once we have that right, we can then clean tp->root up for a number
      of classifiers by not making them RCU pointers, which requires a new callback
      (->uninit) that is triggered from tp's RCU callback, where we just kfree()
      tp->root from there.
      
      Fixes: 1f947bf1 ("net: sched: rcu'ify cls_bpf")
      Fixes: 9888faef ("net: sched: cls_basic use RCU")
      Fixes: 70da9f0b ("net: sched: cls_flow use RCU")
      Fixes: 77b9900e ("tc: introduce Flower classifier")
      Fixes: bf3994d2 ("net/sched: introduce Match-all classifier")
      Fixes: 952313bd ("net: sched: cls_cgroup use RCU")
      Reported-by: default avatarRoi Dayan <roid@mellanox.com>
      Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
      Cc: Cong Wang <xiyou.wangcong@gmail.com>
      Cc: John Fastabend <john.fastabend@gmail.com>
      Cc: Roi Dayan <roid@mellanox.com>
      Cc: Jiri Pirko <jiri@mellanox.com>
      Acked-by: default avatarJohn Fastabend <john.r.fastabend@intel.com>
      Acked-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d9363774
    • Jon Paul Maloy's avatar
      tipc: fix link statistics counter errors · 95901122
      Jon Paul Maloy authored
      In commit e4bf4f76 ("tipc: simplify packet sequence number
      handling") we changed the internal representation of the packet
      sequence number counters from u32 to u16, reflecting what is really
      sent over the wire.
      
      Since then some link statistics counters have been displaying incorrect
      values, partially because the counters meant to be used as sequence
      number snapshots are now used as direct counters, stored as u32, and
      partially because some counter updates are just missing in the code.
      
      In this commit we correct this in two ways. First, we base the
      displayed packet sent/received values on direct counters instead
      of as previously a calculated difference between current sequence
      number and a snapshot. Second, we add the missing updates of the
      counters.
      
      This change is compatible with the current netlink API, and requires
      no changes to the user space tools.
      Signed-off-by: default avatarJon Maloy <jon.maloy@ericsson.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      95901122
    • David S. Miller's avatar
      Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec · 8eb4adf6
      David S. Miller authored
      Steffen Klassert says:
      
      ====================
      pull request (net): ipsec 2016-11-25
      
      1) Fix a refcount leak in vti6.
         From Nicolas Dichtel.
      
      2) Fix a wrong if statement in xfrm_sk_policy_lookup.
         From Florian Westphal.
      
      3) The flowcache watermarks are per cpu. Take this into
         account when comparing to the threshold where we
         refusing new allocations. From Miroslav Urbanek.
      
      Please pull or let me know if there are problems.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8eb4adf6
    • Gao Feng's avatar
      driver: macvtap: Unregister netdev rx_handler if macvtap_newlink fails · e824265d
      Gao Feng authored
      The macvtap_newlink registers the netdev rx_handler firstly, but it
      does not unregister the handler if macvlan_common_newlink failed.
      Signed-off-by: default avatarGao Feng <fgao@ikuai8.com>
      Acked-by: default avatarJason Wang <jasowang@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e824265d
    • David S. Miller's avatar
      Merge branch 'more-phydev-leaks' · a1cad5ee
      David S. Miller authored
      Johan Hovold says:
      
      ====================
      net: fix phydev reference leaks
      
      This series fixes a number of phydev reference leaks (and one of_node
      leak) due to failure to put the reference taken by of_phy_find_device().
      
      Note that I did not try to fix drivers/net/phy/xilinx_gmii2rgmii.c which
      still leaks a reference.
      
      Against net but should apply just as fine to net-next.
      
      v2:
       - use put_device() instead of phy_dev_free() to put the references
         taken in net/dsa (patch 1/4).
       - add four new patches fixing similar leaks
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a1cad5ee
    • Johan Hovold's avatar
      net: qcom/emac: fix of_node and phydev leaks · 6ffe1c4c
      Johan Hovold authored
      Make sure to drop the reference taken by of_phy_find_device() during
      probe on probe errors and on driver unbind.
      
      Also drop the of_node reference taken by of_parse_phandle() in the same
      path.
      
      Fixes: b9b17deb ("net: emac: emac gigabit ethernet controller driver")
      Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      6ffe1c4c
    • Johan Hovold's avatar
      net: fsl/fman: fix fixed-link-phydev reference leak · cb1f3410
      Johan Hovold authored
      Make sure to drop the reference taken by of_phy_find_device() when
      looking up a fixed-link phydev during probe.
      
      Fixes: 57ba4c9b ("fsl/fman: Add FMan MAC support")
      Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      cb1f3410
    • Johan Hovold's avatar
      net: fsl/fman: fix phydev reference leak · 96683034
      Johan Hovold authored
      Make sure to drop the reference taken by of_phy_find_device() during
      initialisation when later freeing the struct fman_mac.
      
      Fixes: 57ba4c9b ("fsl/fman: Add FMan MAC support")
      Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      96683034
    • Johan Hovold's avatar
      net: bcmgenet: fix phydev reference leak · 0da60541
      Johan Hovold authored
      Make sure to drop the reference taken by of_phy_find_device() when
      initialising MOCA PHYs.
      
      Fixes: 6ac9de5f ("net: bcmgenet: Register link_update callback for
      all MoCA PHYs")
      Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      0da60541
    • Johan Hovold's avatar
      net: dsa: fix fixed-link-phy device leaks · fd05d7b1
      Johan Hovold authored
      Make sure to drop the reference taken by of_phy_find_device() when
      registering and deregistering the fixed-link PHY-device.
      
      Fixes: 39b0c705 ("net: dsa: Allow configuration of CPU & DSA port
      speeds/duplex")
      Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      fd05d7b1
    • Arnd Bergmann's avatar
      irda: fix overly long udelay() · c9bd2823
      Arnd Bergmann authored
      irda_get_mtt() returns a hardcoded '10000' in some cases,
      and with gcc-7, we get a build error because this triggers a
      compile-time check in udelay():
      
      drivers/net/irda/w83977af_ir.o: In function `w83977af_hard_xmit':
      w83977af_ir.c:(.text.w83977af_hard_xmit+0x14c): undefined reference to `__bad_udelay'
      
      Older compilers did not run into this because they either did not
      completely inline the irda_get_mtt() or did not consider the
      10000 value a constant expression.
      
      The code has been wrong since the start of git history.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c9bd2823
    • Gao Feng's avatar
      driver: ipvlan: Fix one possible memleak in ipvlan_link_new · 147fd287
      Gao Feng authored
      When ipvlan_link_new fails and creates one ipvlan port, it does not
      destroy the ipvlan port created. It causes mem leak and the physical
      device contains invalid ipvlan data.
      Signed-off-by: default avatarGao Feng <fgao@ikuai8.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      147fd287
  2. 27 Nov, 2016 2 commits
  3. 26 Nov, 2016 17 commits
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · e3480312
      Linus Torvalds authored
      Pull i2c fixes from Wolfram Sang:
       "Here is a revert and two bugfixes for the I2C designware driver.
      
        Please note that we are still hunting down a regression for the
        i2c-octeon driver. While there is a fix pending, we have unclear
        feedback from the testers currently. An rc8 would be quite helpful
        for this case"
      
      * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        Revert "i2c: designware: do not disable adapter after transfer"
        i2c: designware: fix rx fifo depth tracking
        i2c: designware: report short transfers
      e3480312
    • Linus Torvalds's avatar
      Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm · a56f3eb2
      Linus Torvalds authored
      Pull ARM fix from Russell King:
       "This resolves the ksyms issues by reverting the commit which
        introduced the breakage"
      
      There was what I consider to be a better fix, but it's late in the rc
      game, so I'll take the revert.
      
      * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
        Revert "arm: move exports to definitions"
      a56f3eb2
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · a0d60e62
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Fix leak in fsl/fman driver, from Dan Carpenter.
      
       2) Call flow dissector initcall earlier than any networking driver can
          register and start to use it, from Eric Dumazet.
      
       3) Some dup header fixes from Geliang Tang.
      
       4) TIPC link monitoring compat fix from Jon Paul Maloy.
      
       5) Link changes require EEE re-negotiation in bcm_sf2 driver, from
          Florian Fainelli.
      
       6) Fix bogus handle ID passed into tfilter_notify_chain(), from Roman
          Mashak.
      
       7) Fix dump size calculation in rtnl_calcit(), from Zhang Shengju.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits)
        tipc: resolve connection flow control compatibility problem
        mvpp2: use correct size for memset
        net/mlx5: drop duplicate header delay.h
        net: ieee802154: drop duplicate header delay.h
        ibmvnic: drop duplicate header seq_file.h
        fsl/fman: fix a leak in tgec_free()
        net: ethtool: don't require CAP_NET_ADMIN for ETHTOOL_GLINKSETTINGS
        tipc: improve sanity check for received domain records
        tipc: fix compatibility bug in link monitoring
        net: ethernet: mvneta: Remove IFF_UNICAST_FLT which is not implemented
        dwc_eth_qos: drop duplicate headers
        net sched filters: fix filter handle ID in tfilter_notify_chain()
        net: dsa: bcm_sf2: Ensure we re-negotiate EEE during after link change
        bnxt: do not busy-poll when link is down
        udplite: call proper backlog handlers
        ipv6: bump genid when the IFA_F_TENTATIVE flag is clear
        net/mlx4_en: Free netdev resources under state lock
        net: revert "net: l2tp: Treat NET_XMIT_CN as success in l2tp_eth_dev_xmit"
        rtnetlink: fix the wrong minimal dump size getting from rtnl_calcit()
        bnxt_en: Fix a VXLAN vs GENEVE issue
        ...
      a0d60e62
    • Linus Torvalds's avatar
      Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm · 30e2b7cf
      Linus Torvalds authored
      Pull libnvdimm fixes from Dan Williams:
      
       - Fix a crash that occurs at driver initialization if the memory region
         is already busy (request_mem_region() fails).
      
       - Fix a vma validation check that mistakenly allows a private device-
         dax mapping to be established. Device-dax explicitly forbids private
         mappings so it can guarantee a given fault granularity and backing
         memory type.
      
       Both of these fixes have soaked in -next and are tagged for -stable.
      
      * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
        device-dax: fail all private mapping attempts
        device-dax: check devm_nsio_enable() return value
      30e2b7cf
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · fc13ca19
      Linus Torvalds authored
      Pull KVM fixes from Radim Krčmář:
       "Four fixes for bugs found by syzkaller on x86, all for stable"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        KVM: x86: check for pic and ioapic presence before use
        KVM: x86: fix out-of-bounds accesses of rtc_eoi map
        KVM: x86: drop error recovery in em_jmp_far and em_ret_far
        KVM: x86: fix out-of-bounds access in lapic
      fc13ca19
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.9-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 39c15737
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       "Fixes marked for stable:
         - Set missing wakeup bit in LPCR on POWER9
         - Fix the early OPAL console wrappers
         - Fixup kernel read only mapping
      
        Fixes for code merged this cycle:
         - Fix missing CRCs, add more asm-prototypes.h declarations"
      
      * tag 'powerpc-4.9-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc/mm: Fixup kernel read only mapping
        powerpc/boot: Fix the early OPAL console wrappers
        powerpc: Fix missing CRCs, add more asm-prototypes.h declarations
        powerpc: Set missing wakeup bit in LPCR on POWER9
      39c15737
    • Jon Paul Maloy's avatar
      tipc: resolve connection flow control compatibility problem · 6998cc6e
      Jon Paul Maloy authored
      In commit 10724cc7 ("tipc: redesign connection-level flow control")
      we replaced the previous message based flow control with one based on
      1k blocks. In order to ensure backwards compatibility the mechanism
      falls back to using message as base unit when it senses that the peer
      doesn't support the new algorithm. The default flow control window,
      i.e., how many units can be sent before the sender blocks and waits
      for an acknowledge (aka advertisement) is 512. This was tested against
      the previous version, which uses an acknowledge frequency of on ack per
      256 received message, and found to work fine.
      
      However, we missed the fact that versions older than Linux 3.15 use an
      acknowledge frequency of 512, which is exactly the limit where a 4.6+
      sender will stop and wait for acknowledge. This would also work fine if
      it weren't for the fact that if the first sent message on a 4.6+ server
      side is an empty SYNACK, this one is also is counted as a sent message,
      while it is not counted as a received message on a legacy 3.15-receiver.
      This leads to the sender always being one step ahead of the receiver, a
      scenario causing the sender to block after 512 sent messages, while the
      receiver only has registered 511 read messages. Hence, the legacy
      receiver is not trigged to send an acknowledge, with a permanently
      blocked sender as result.
      
      We solve this deadlock by simply allowing the sender to send one more
      message before it blocks, i.e., by a making minimal change to the
      condition used for determining connection congestion.
      Signed-off-by: default avatarJon Maloy <jon.maloy@ericsson.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      6998cc6e
    • Arnd Bergmann's avatar
      mvpp2: use correct size for memset · e8f967c3
      Arnd Bergmann authored
      gcc-7 detects a short memset in mvpp2, introduced in the original
      merge of the driver:
      
      drivers/net/ethernet/marvell/mvpp2.c: In function 'mvpp2_cls_init':
      drivers/net/ethernet/marvell/mvpp2.c:3296:2: error: 'memset' used with length equal to number of elements without multiplication by element size [-Werror=memset-elt-size]
      
      The result seems to be that we write uninitialized data into the
      flow table registers, although we did not get any warning about
      that uninitialized data usage.
      
      Using sizeof() lets us initialize then entire array instead.
      
      Fixes: 3f518509 ("ethernet: Add new driver for Marvell Armada 375 network unit")
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e8f967c3
    • Geliang Tang's avatar
      net/mlx5: drop duplicate header delay.h · 5e7dfeb7
      Geliang Tang authored
      Drop duplicate header delay.h from mlx5/core/main.c.
      Signed-off-by: default avatarGeliang Tang <geliangtang@gmail.com>
      Acked-by: default avatarMatan Barak <matanb@mellanox.com>
      Acked-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      5e7dfeb7
    • Geliang Tang's avatar
      net: ieee802154: drop duplicate header delay.h · 8f8a8b13
      Geliang Tang authored
      Drop duplicate header delay.h from adf7242.c.
      Signed-off-by: default avatarGeliang Tang <geliangtang@gmail.com>
      Acked-by: default avatarStefan Schmidt <stefan@osg.samsung.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8f8a8b13
    • Geliang Tang's avatar
      ibmvnic: drop duplicate header seq_file.h · 4ee12efa
      Geliang Tang authored
      Drop duplicate header seq_file.h from ibmvnic.c.
      Signed-off-by: default avatarGeliang Tang <geliangtang@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4ee12efa
    • Dan Carpenter's avatar
      fsl/fman: fix a leak in tgec_free() · 1f1e70ef
      Dan Carpenter authored
      We set "tgec->cfg" to NULL before passing it to kfree().  There is no
      need to set it to NULL at all.  Let's just delete it.
      
      Fixes: 57ba4c9b ("fsl/fman: Add FMan MAC support")
      Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      1f1e70ef
    • Miroslav Lichvar's avatar
      net: ethtool: don't require CAP_NET_ADMIN for ETHTOOL_GLINKSETTINGS · 8006f6bf
      Miroslav Lichvar authored
      The ETHTOOL_GLINKSETTINGS command is deprecating the ETHTOOL_GSET
      command and likewise it shouldn't require the CAP_NET_ADMIN capability.
      Signed-off-by: default avatarMiroslav Lichvar <mlichvar@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8006f6bf
    • Jon Paul Maloy's avatar
      tipc: improve sanity check for received domain records · d876a4d2
      Jon Paul Maloy authored
      In commit 35c55c98 ("tipc: add neighbor monitoring framework") we
      added a data area to the link monitor STATE messages under the
      assumption that previous versions did not use any such data area.
      
      For versions older than Linux 4.3 this assumption is not correct. In
      those version, all STATE messages sent out from a node inadvertently
      contain a 16 byte data area containing a string; -a leftover from
      previous RESET messages which were using this during the setup phase.
      This string serves no purpose in STATE messages, and should no be there.
      
      Unfortunately, this data area is delivered to the link monitor
      framework, where a sanity check catches that it is not a correct domain
      record, and drops it. It also issues a rate limited warning about the
      event.
      
      Since such events occur much more frequently than anticipated, we now
      choose to remove the warning in order to not fill the kernel log with
      useless contents. We also make the sanity check stricter, to further
      reduce the risk that such data is inavertently admitted.
      Signed-off-by: default avatarJon Maloy <jon.maloy@ericsson.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d876a4d2
    • Jon Paul Maloy's avatar
      tipc: fix compatibility bug in link monitoring · f7967556
      Jon Paul Maloy authored
      commit 81729810 ("tipc: fix link priority propagation") introduced a
      compatibility problem between TIPC versions newer than Linux 4.6 and
      those older than Linux 4.4. In versions later than 4.4, link STATE
      messages only contain a non-zero link priority value when the sender
      wants the receiver to change its priority. This has the effect that the
      receiver resets itself in order to apply the new priority. This works
      well, and is consistent with the said commit.
      
      However, in versions older than 4.4 a valid link priority is present in
      all sent link STATE messages, leading to cyclic link establishment and
      reset on the 4.6+ node.
      
      We fix this by adding a test that the received value should not only
      be valid, but also differ from the current value in order to cause the
      receiving link endpoint to reset.
      Reported-by: default avatarAmar Nv <amar.nv005@gmail.com>
      Signed-off-by: default avatarJon Maloy <jon.maloy@ericsson.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f7967556
    • Andrew Lunn's avatar
      net: ethernet: mvneta: Remove IFF_UNICAST_FLT which is not implemented · 97db8afa
      Andrew Lunn authored
      The mvneta driver advertises it supports IFF_UNICAST_FLT. However, it
      actually does not. The hardware probably does support it, but there is
      no code to configure the filter. As a quick and simple fix, remove the
      flag. This will cause the core to fall back to promiscuous mode.
      Signed-off-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Fixes: b50b72de ("net: mvneta: enable features before registering the driver")
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      97db8afa
    • Linus Torvalds's avatar
      Merge branch 'parisc-4.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · 3ad0e83c
      Linus Torvalds authored
      Pull parisc fixes from Helge Deller:
       "On parisc we were still seeing occasional random segmentation faults
        and memory corruption on SMP machines. Dave Anglin then looked again
        at the TLB related code and found two issues in the PCI DMA and
        generic TLB flush functions.
      
        Then, in our startup code we had some timing of the cache and TLB
        functions to calculate a threshold when to use a complete TLB/cache
        flush or just to flush a specific range. This code produced a race
        with newly started CPUs and thus lead to occasional kernel crashes
        (due to stale TLB/cache entries). The patch by Dave fixes this issue
        by flushing the local caches before starting secondary CPUs and by
        removing the race.
      
        The last problem fixed by this series is that we quite often suffered
        from hung tasks and self-detected stalls on the CPUs. It was somehow
        clear that this was related to the (in v4.7) newly introduced cr16
        clocksource and the own implementation of sched_clock(). I replaced
        the open-coded sched_clock() function and switched to the generic
        sched_clock() implementation which seems to have fixed this isse as
        well.
      
        All patches have been sucessfully tested on a variety of machines,
        including our debian buildd servers.
      
        All patches (beside the small pr_cont fix) are tagged for stable
        releases"
      
      * 'parisc-4.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
        parisc: Also flush data TLB in flush_icache_page_asm
        parisc: Fix race in pci-dma.c
        parisc: Switch to generic sched_clock implementation
        parisc: Fix races in parisc_setup_cache_timing()
        parisc: Fix printk continuations in system detection
      3ad0e83c
  4. 25 Nov, 2016 3 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security · 86b01b54
      Linus Torvalds authored
      Pull keys fixes from James Morris:
       "From David:
      
         - Fix mpi_powm()'s handling of a number with a zero exponent
           [CVE-2016-8650].
      
           Integrate my and Andrey's patches for mpi_powm() and use
           mpi_resize() instead of RESIZE_IF_NEEDED() - the latter adds a
           duplicate check into the execution path of a trivial case we
           don't normally expect to be taken.
      
         - Fix double free in X.509 error handling"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
        mpi: Fix NULL ptr dereference in mpi_powm() [ver #3]
        X.509: Fix double free in x509_cert_parse() [ver #3]
      86b01b54
    • Linus Torvalds's avatar
      Fix subtle CONFIG_MODVERSIONS problems · cd3caefb
      Linus Torvalds authored
      CONFIG_MODVERSIONS has been broken for pretty much the whole 4.9 series,
      and quite frankly, nobody has cared very deeply.  We absolutely know how
      to fix it, and it's not _complicated_, but it's not exactly pretty
      either.
      
      This oneliner fixes it without the ugliness, and allows for further
      future cleanups.
      
        "We've secretly replaced their regular MODVERSIONS with nothing at
         all, let's see if they notice"
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      cd3caefb
    • Linus Torvalds's avatar
      Merge tag 'acpi-4.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · beb53e4b
      Linus Torvalds authored
      Pull ACPI fixes from Rafael Wysocki:
       "Two ACPI fixes for 4.9-rc7.
      
        One of them reverts a recent ACPI commit that attempted to improve
        reboot/power-off on some systems, but introduced problems elsewhere,
        and the other one fixes kernel builds with the new WDAT watchdog
        driver enabled in some configurations.
      
        Specifics:
      
         - Revert the recent commit that caused the ACPI _PTS method to be
           executed in the power-off/reboot code path (as per the
           specification) in an attempt to improve things on some systems
           (apparently expecting _PTS to be executed in that code path), but
           broke power-off/reboot on at least one other machine (Rafael
           Wysocki).
      
         - Fix kernel builds with the new WDAT watchdog driver enabled in some
           configurations by explicitly selecting WATCHDOG_CORE when enabling
           the WDAT watchdog driver (Mika Westerberg)"
      
      * tag 'acpi-4.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        watchdog: wdat_wdt: Select WATCHDOG_CORE
        Revert "ACPI: Execute _PTS before system reboot"
      beb53e4b