1. 27 May, 2015 5 commits
    • Alexander Shishkin's avatar
      perf/x86/intel/pt: Untangle pt_buffer_reset_markers() · f73ec48c
      Alexander Shishkin authored
      Currently, pt_buffer_reset_markers() is a difficult to read knot of
      arithmetics with a redundant check for multiple-entry TOPA capability,
      a commented out wakeup marker placement and a logical error wrt to
      stop marker placement. The latter happens when write head is not page
      aligned and results in stop marker being placed one page earlier than
      it actually should.
      
      All these problems only affect PT implementations that support
      multiple-entry TOPA tables (read: proper scatter-gather).
      
      For single-entry TOPA implementations, there is no functional impact.
      
      This patch deals with all of the above. Tested on both single-entry
      and multiple-entry TOPA PT implementations.
      Signed-off-by: default avatarAlexander Shishkin <alexander.shishkin@linux.intel.com>
      Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: acme@infradead.org
      Cc: adrian.hunter@intel.com
      Cc: hpa@zytor.com
      Link: http://lkml.kernel.org/r/1432308626-18845-4-git-send-email-alexander.shishkin@linux.intel.comSigned-off-by: Ingo Molnar's avatarIngo Molnar <mingo@kernel.org>
      f73ec48c
    • Alexander Shishkin's avatar
      perf: Disallow sparse AUX allocations for non-SG PMUs in overwrite mode · aa319bcd
      Alexander Shishkin authored
      PMUs that don't support hardware scatter tables require big contiguous
      chunks of memory and a PMI to switch between them. However, in overwrite
      using a PMI for this purpose adds extra overhead that the users would
      like to avoid. Thus, in overwrite mode for such PMUs we can only allow
      one contiguous chunk for the entire requested buffer.
      
      This patch changes the behavior accordingly, so that if the buddy allocator
      fails to come up with a single high-order chunk for the entire requested
      buffer, the allocation will fail.
      Signed-off-by: default avatarAlexander Shishkin <alexander.shishkin@linux.intel.com>
      Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: acme@infradead.org
      Cc: adrian.hunter@intel.com
      Cc: hpa@zytor.com
      Link: http://lkml.kernel.org/r/1432308626-18845-2-git-send-email-alexander.shishkin@linux.intel.comSigned-off-by: Ingo Molnar's avatarIngo Molnar <mingo@kernel.org>
      aa319bcd
    • Peter Zijlstra's avatar
      perf/x86: Improve HT workaround GP counter constraint · cc1790cf
      Peter Zijlstra authored
      The (SNB/IVB/HSW) HT bug only affects events that can be programmed
      onto GP counters, therefore we should only limit the number of GP
      counters that can be used per cpu -- iow we should not constrain the
      FP counters.
      
      Furthermore, we should only enfore such a limit when there are in fact
      exclusive events being scheduled on either sibling.
      Reported-by: default avatarVince Weaver <vincent.weaver@maine.edu>
      Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      [ Fixed build fail for the !CONFIG_CPU_SUP_INTEL case. ]
      Signed-off-by: Ingo Molnar's avatarIngo Molnar <mingo@kernel.org>
      cc1790cf
    • Peter Zijlstra's avatar
      perf/x86: Fix event/group validation · b371b594
      Peter Zijlstra authored
      Commit 43b45780 ("perf/x86: Reduce stack usage of
      x86_schedule_events()") violated the rule that 'fake' scheduling; as
      used for event/group validation; should not change the event state.
      
      This went mostly un-noticed because repeated calls of
      x86_pmu::get_event_constraints() would give the same result. And
      x86_pmu::put_event_constraints() would mostly not do anything.
      
      Commit e979121b ("perf/x86/intel: Implement cross-HT corruption
      bug workaround") made the situation much worse by actually setting the
      event->hw.constraint value to NULL, so when validation and actual
      scheduling interact we get NULL ptr derefs.
      
      Fix it by removing the constraint pointer from the event and move it
      back to an array, this time in cpuc instead of on the stack.
      
      validate_group()
        x86_schedule_events()
          event->hw.constraint = c; # store
      
            <context switch>
              perf_task_event_sched_in()
                ...
                  x86_schedule_events();
                    event->hw.constraint = c2; # store
      
                    ...
      
                    put_event_constraints(event); # assume failure to schedule
                      intel_put_event_constraints()
                        event->hw.constraint = NULL;
      
            <context switch end>
      
          c = event->hw.constraint; # read -> NULL
      
          if (!test_bit(hwc->idx, c->idxmsk)) # <- *BOOM* NULL deref
      
      This in particular is possible when the event in question is a
      cpu-wide event and group-leader, where the validate_group() tries to
      add an event to the group.
      Reported-by: default avatarVince Weaver <vincent.weaver@maine.edu>
      Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Andrew Hunter <ahh@google.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Maria Dimakopoulou <maria.n.dimakopoulou@gmail.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Fixes: 43b45780 ("perf/x86: Reduce stack usage of x86_schedule_events()")
      Fixes: e979121b ("perf/x86/intel: Implement cross-HT corruption bug workaround")
      Signed-off-by: Ingo Molnar's avatarIngo Molnar <mingo@kernel.org>
      b371b594
    • Alexei Starovoitov's avatar
      perf: Fix race in BPF program unregister · dead9f29
      Alexei Starovoitov authored
      there is a race between perf_event_free_bpf_prog() and free_trace_kprobe():
      
      	__free_event()
      	  event->destroy(event)
      	    tp_perf_event_destroy()
      	      perf_trace_destroy()
      		perf_trace_event_unreg()
      
      which is dropping event->tp_event->perf_refcount and allows to proceed in:
      
      	unregister_trace_kprobe()
      	  unregister_kprobe_event()
      	      trace_remove_event_call()
      		    probe_remove_event_call()
      	free_trace_kprobe()
      
      while __free_event does:
      
      	call_rcu(&event->rcu_head, free_event_rcu);
      	  free_event_rcu()
      	    perf_event_free_bpf_prog()
      
      To fix the race simply move perf_event_free_bpf_prog() before
      event->destroy(), since event->tp_event is still valid at that point.
      
      Note, perf_trace_destroy() is not racing with trace_remove_event_call()
      since they both grab event_mutex.
      Reported-by: default avatarWang Nan <wangnan0@huawei.com>
      Signed-off-by: default avatarAlexei Starovoitov <ast@plumgrid.com>
      Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: lizefan@huawei.com
      Cc: pi3orama@163.com
      Fixes: 2541517c ("tracing, perf: Implement BPF programs attached to kprobes")
      Link: http://lkml.kernel.org/r/1431717321-28772-1-git-send-email-ast@plumgrid.comSigned-off-by: Ingo Molnar's avatarIngo Molnar <mingo@kernel.org>
      dead9f29
  2. 25 May, 2015 1 commit
  3. 24 May, 2015 3 commits
  4. 23 May, 2015 3 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client · 086e8ddb
      Linus Torvalds authored
      Pull two Ceph fixes from Sage Weil:
       "These fix an issue with the RBD notifications when there are topology
        changes in the cluster"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
        Revert "libceph: clear r_req_lru_item in __unregister_linger_request()"
        libceph: request a new osdmap if lingering request maps to no osd
      086e8ddb
    • Linus Torvalds's avatar
      Merge branch 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs · 7ce14f6f
      Linus Torvalds authored
      Pull btrfs fixes from Chris Mason:
       "I fixed up a regression from 4.0 where conversion between different
        raid levels would sometimes bail out without converting.
      
        Filipe tracked down a race where it was possible to double allocate
        chunks on the drive.
      
        Mark has a fix for fiemap.  All three will get bundled off for stable
        as well"
      
      * 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
        Btrfs: fix regression in raid level conversion
        Btrfs: fix racy system chunk allocation when setting block group ro
        btrfs: clear 'ret' in btrfs_check_shared() loop
      7ce14f6f
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · cf539cbd
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Radeon has two displayport fixes, one for a regression.
      
        i915 regression flicker fix needed so 4.0 can get fixed.
      
        A bunch of msm fixes and a bunch of exynos fixes, these two are
        probably a bit larger than I'd like, but most of them seems pretty
        good"
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (29 commits)
        drm/radeon: fix error flag checking in native aux path
        drm/radeon: retry dcpd fetch
        drm/msm/mdp5: fix incorrect parameter for msm_framebuffer_iova()
        drm/exynos: dp: Lower level of EDID read success message
        drm/exynos: cleanup exynos_drm_plane
        drm/exynos: 'win' is always unsigned
        drm/exynos: mixer: don't dump registers under spinlock
        drm/exynos: Consolidate return statements in fimd_bind()
        drm/exynos: Constify exynos_drm_crtc_ops
        drm/exynos: Fix build breakage on !DRM_EXYNOS_FIMD
        drm/exynos: mixer: Constify platform_device_id
        drm/exynos: mixer: cleanup pixelformat handling
        drm/exynos: mixer: also allow NV21 for the video processor
        drm/exynos: mixer: remove buffer count handling in vp_video_buffer()
        drm/exynos: plane: honor buffer offset for dma_addr
        drm/exynos: fb: use drm_format_num_planes to get buffer count
        drm/i915: fix screen flickering
        drm/msm: fix locking inconsistencies in gpu->destroy()
        drm/msm/dsi: Simplify the code to get the number of read byte
        drm/msm: Attach assigned encoder to eDP and DSI connectors
        ...
      cf539cbd
  5. 22 May, 2015 28 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 0b6280c6
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Don't leak ipvs->sysctl_tbl, from Tommi Rentala.
      
       2) Fix neighbour table entry leak in rocker driver, from Ying Xue.
      
       3) Do not emit bonding notifications for unregistered interfaces, from
          Nicolas Dichtel.
      
       4) Set ipv6 flow label properly when in TIME_WAIT state, from Florent
          Fourcot.
      
       5) Fix regression in ipv6 multicast filter test, from Henning Rogge.
      
       6) do_replace() in various footables netfilter modules is missing a
          check for 0 counters in the datastructure provided by the user.  Fix
          from Dave Jones, and found with trinity.
      
       7) Fix RCU bug in packet scheduler classifier module unloads, from
          Daniel Borkmann.
      
       8) Avoid deadlock in tcp_get_info() by using u64_sync.  From Eric
          Dumzaet.
      
       9) Input packet processing can race with inetdev_destroy() teardown,
          fix potential OOPS in ip_error() by explicitly testing whether the
          inetdev is still attached.  From Eric W Biederman.
      
      10) MLDv2 parser in bridge multicast code breaks too early while
          parsing.  Fix from Thadeu Lima de Souza Cascardo.
      
      11) Asking for settings on non-zero PHYID doesn't work because we do not
          import the command structure from the user and use the PHYID
          provided there.  Fix from Arun Parameswaran.
      
      12) Fix UDP checksums with IPV6 RAW sockets, from Vlad Yasevich.
      
      13) Missing NF_TABLES depends for TPROXY etc can cause build failures,
          fix from Florian Westphal.
      
      14) Fix netfilter conntrack to handle RFC5961 challenge ACKs properly,
          from Jesper Dangaard Brouer.
      
      15) If netlink autobind retry fails, we have to reset the sockets portid
          back to zero.  From Herbert Xu.
      
      16) VXLAN netns exit code unregisters using wrong device, from John W
          Linville.
      
      17) Add some USB device IDs to ath3k and btusb bluetooth drivers, from
          Dmitry Tunin and Wen-chien Jesse Sung.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits)
        bridge: fix lockdep splat
        net: core: 'ethtool' issue with querying phy settings
        bridge: fix parsing of MLDv2 reports
        ARM: zynq: DT: Use the zynq binding with macb
        net: macb: Disable half duplex gigabit on Zynq
        net: macb: Document zynq gem dt binding
        ipv4: fill in table id when replacing a route
        cdc_ncm: Fix tx_bytes statistics
        ipv4: Avoid crashing in ip_error
        tcp: fix a potential deadlock in tcp_get_info()
        net: sched: fix call_rcu() race on classifier module unloads
        net: phy: Make sure phy_start() always re-enables the phy interrupts
        ipv6: fix ECMP route replacement
        ipv6: do not delete previously existing ECMP routes if add fails
        Revert "netfilter: bridge: query conntrack about skb dnat"
        netfilter: ensure number of counters is >0 in do_replace()
        netfilter: nfnetlink_{log,queue}: Register pernet in first place
        tcp: don't over-send F-RTO probes
        tcp: only undo on partial ACKs in CA_Loss
        net/ipv6/udp: Fix ipv6 multicast socket filter regression
        ...
      0b6280c6
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 1c8df7bd
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "Three small fixes that have been picked up the last few weeks.
        Specifically:
      
         - Fix a memory corruption issue in NVMe with malignant user
           constructed request.  From Christoph.
      
         - Kill (now) unused blk_queue_bio(), dm was changed to not need this
           anymore.  From Mike Snitzer.
      
         - Always use blk_schedule_flush_plug() from the io_schedule() path
           when flushing a plug, fixing a !TASK_RUNNING warning with md.  From
           Shaohua"
      
      * 'for-linus' of git://git.kernel.dk/linux-block:
        sched: always use blk_schedule_flush_plug in io_schedule_out
        nvme: fix kernel memory corruption with short INQUIRY buffers
        block: remove export for blk_queue_bio
      1c8df7bd
    • Linus Torvalds's avatar
      Merge tag 'md/4.1-rc4-fixes' of git://neil.brown.name/md · a30ec4b3
      Linus Torvalds authored
      Pull md bugfixes from Neil Brown:
       "I have a few more raid5 bugfixes pending, but I want them to get a bit
        more review first.  In the meantime:
      
         - one serious RAID0 data corruption - caused by recent bugfix that
           wasn't reviewed properly.
      
         - one raid5 fix in new code (a couple more of those to come).
      
         - one little fix to stop static analysis complaining about silly rcu
           annotation"
      
      * tag 'md/4.1-rc4-fixes' of git://neil.brown.name/md:
        md/bitmap: remove rcu annotation from pointer arithmetic.
        md/raid0: fix restore to sector variable in raid0_make_request
        raid5: fix broken async operation chain
      a30ec4b3
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 1d82b0ba
      Linus Torvalds authored
      Pull input fixes from Dmitry Torokhov:
       "Updates for the input subsystem.
      
        The main change is that we tell joydev not to touch "absolute mice",
        such as VMware virtual mouse, as that produced bad result (cursor
        stuck in upper right corner) with games"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: smtpe-ts - wait 50mS until polling for pen-up
        Input: smtpe-ts - use msecs_to_jiffies() instead of HZ
        Input: joydev - don't classify the vmmouse as a joystick
        Input: vmmouse - do not reference non-existing version of X driver
        Input: alps - fix finger jumps on lifting 2 fingers on v7 touchpad
        Input: elantech - fix semi-mt protocol for v3 HW
        Input: sx8654 - fix memory allocation check
      1d82b0ba
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 · 2a058f38
      Linus Torvalds authored
      Pull another crypto fix from Herbert Xu:
       "Fix ICV corruption in s390/ghash when the same tfm is used by more
        than one thread"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
        crypto: s390/ghash - Fix incorrect ghash icv buffer handling.
      2a058f38
    • Eric Dumazet's avatar
      bridge: fix lockdep splat · 93a33a58
      Eric Dumazet authored
      Following lockdep splat was reported :
      
      [   29.382286] ===============================
      [   29.382315] [ INFO: suspicious RCU usage. ]
      [   29.382344] 4.1.0-0.rc0.git11.1.fc23.x86_64 #1 Not tainted
      [   29.382380] -------------------------------
      [   29.382409] net/bridge/br_private.h:626 suspicious
      rcu_dereference_check() usage!
      [   29.382455]
                     other info that might help us debug this:
      
      [   29.382507]
                     rcu_scheduler_active = 1, debug_locks = 0
      [   29.382549] 2 locks held by swapper/0/0:
      [   29.382576]  #0:  (((&p->forward_delay_timer))){+.-...}, at:
      [<ffffffff81139f75>] call_timer_fn+0x5/0x4f0
      [   29.382660]  #1:  (&(&br->lock)->rlock){+.-...}, at:
      [<ffffffffa0450dc1>] br_forward_delay_timer_expired+0x31/0x140
      [bridge]
      [   29.382754]
                     stack backtrace:
      [   29.382787] CPU: 0 PID: 0 Comm: swapper/0 Not tainted
      4.1.0-0.rc0.git11.1.fc23.x86_64 #1
      [   29.382838] Hardware name: LENOVO 422916G/LENOVO, BIOS A1KT53AUS 04/07/2015
      [   29.382882]  0000000000000000 3ebfc20364115825 ffff880666603c48
      ffffffff81892d4b
      [   29.382943]  0000000000000000 ffffffff81e124e0 ffff880666603c78
      ffffffff8110bcd7
      [   29.383004]  ffff8800785c9d00 ffff88065485ac58 ffff880c62002800
      ffff880c5fc88ac0
      [   29.383065] Call Trace:
      [   29.383084]  <IRQ>  [<ffffffff81892d4b>] dump_stack+0x4c/0x65
      [   29.383130]  [<ffffffff8110bcd7>] lockdep_rcu_suspicious+0xe7/0x120
      [   29.383178]  [<ffffffffa04520f9>] br_fill_ifinfo+0x4a9/0x6a0 [bridge]
      [   29.383225]  [<ffffffffa045266b>] br_ifinfo_notify+0x11b/0x4b0 [bridge]
      [   29.383271]  [<ffffffffa0450d90>] ? br_hold_timer_expired+0x70/0x70 [bridge]
      [   29.383320]  [<ffffffffa0450de8>]
      br_forward_delay_timer_expired+0x58/0x140 [bridge]
      [   29.383371]  [<ffffffffa0450d90>] ? br_hold_timer_expired+0x70/0x70 [bridge]
      [   29.383416]  [<ffffffff8113a033>] call_timer_fn+0xc3/0x4f0
      [   29.383454]  [<ffffffff81139f75>] ? call_timer_fn+0x5/0x4f0
      [   29.383493]  [<ffffffff8110a90f>] ? lock_release_holdtime.part.29+0xf/0x200
      [   29.383541]  [<ffffffffa0450d90>] ? br_hold_timer_expired+0x70/0x70 [bridge]
      [   29.383587]  [<ffffffff8113a6a4>] run_timer_softirq+0x244/0x490
      [   29.383629]  [<ffffffff810b68cc>] __do_softirq+0xec/0x670
      [   29.383666]  [<ffffffff810b70d5>] irq_exit+0x145/0x150
      [   29.383703]  [<ffffffff8189f506>] smp_apic_timer_interrupt+0x46/0x60
      [   29.383744]  [<ffffffff8189d523>] apic_timer_interrupt+0x73/0x80
      [   29.383782]  <EOI>  [<ffffffff816f131f>] ? cpuidle_enter_state+0x5f/0x2f0
      [   29.383832]  [<ffffffff816f131b>] ? cpuidle_enter_state+0x5b/0x2f0
      
      Problem here is that br_forward_delay_timer_expired() is a timer
      handler, calling br_ifinfo_notify() which assumes either rcu_read_lock()
      or RTNL are held.
      
      Simplest fix seems to add rcu read lock section.
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Reported-by: default avatarJosh Boyer <jwboyer@fedoraproject.org>
      Reported-by: default avatarDominick Grift <dac.override@gmail.com>
      Cc: Vlad Yasevich <vyasevich@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      93a33a58
    • Arun Parameswaran's avatar
      net: core: 'ethtool' issue with querying phy settings · f96dee13
      Arun Parameswaran authored
      When trying to configure the settings for PHY1, using commands
      like 'ethtool -s eth0 phyad 1 speed 100', the 'ethtool' seems to
      modify other settings apart from the speed of the PHY1, in the
      above case.
      
      The ethtool seems to query the settings for PHY0, and use this
      as the base to apply the new settings to the PHY1. This is
      causing the other settings of the PHY 1 to be wrongly
      configured.
      
      The issue is caused by the '_ethtool_get_settings()' API, which
      gets called because of the 'ETHTOOL_GSET' command, is clearing
      the 'cmd' pointer (of type 'struct ethtool_cmd') by calling
      memset. This clears all the parameters (if any) passed for the
      'ETHTOOL_GSET' cmd. So the driver's callback is always invoked
      with 'cmd->phy_address' as '0'.
      
      The '_ethtool_get_settings()' is called from other files in the
      'net/core'. So the fix is applied to the 'ethtool_get_settings()'
      which is only called in the context of the 'ethtool'.
      Signed-off-by: default avatarArun Parameswaran <aparames@broadcom.com>
      Reviewed-by: default avatarRay Jui <rjui@broadcom.com>
      Reviewed-by: default avatarScott Branden <sbranden@broadcom.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f96dee13
    • Thadeu Lima de Souza Cascardo's avatar
      bridge: fix parsing of MLDv2 reports · 47cc84ce
      Thadeu Lima de Souza Cascardo authored
      When more than a multicast address is present in a MLDv2 report, all but
      the first address is ignored, because the code breaks out of the loop if
      there has not been an error adding that address.
      
      This has caused failures when two guests connected through the bridge
      tried to communicate using IPv6. Neighbor discoveries would not be
      transmitted to the other guest when both used a link-local address and a
      static address.
      
      This only happens when there is a MLDv2 querier in the network.
      
      The fix will only break out of the loop when there is a failure adding a
      multicast address.
      
      The mdb before the patch:
      
      dev ovirtmgmt port vnet0 grp ff02::1:ff7d:6603 temp
      dev ovirtmgmt port vnet1 grp ff02::1:ff7d:6604 temp
      dev ovirtmgmt port bond0.86 grp ff02::2 temp
      
      After the patch:
      
      dev ovirtmgmt port vnet0 grp ff02::1:ff7d:6603 temp
      dev ovirtmgmt port vnet1 grp ff02::1:ff7d:6604 temp
      dev ovirtmgmt port bond0.86 grp ff02::fb temp
      dev ovirtmgmt port bond0.86 grp ff02::2 temp
      dev ovirtmgmt port bond0.86 grp ff02::d temp
      dev ovirtmgmt port vnet0 grp ff02::1:ff00:76 temp
      dev ovirtmgmt port bond0.86 grp ff02::16 temp
      dev ovirtmgmt port vnet1 grp ff02::1:ff00:77 temp
      dev ovirtmgmt port bond0.86 grp ff02::1:ff00:def temp
      dev ovirtmgmt port bond0.86 grp ff02::1:ffa1:40bf temp
      
      Fixes: 08b202b6 ("bridge br_multicast: IPv6 MLD support.")
      Reported-by: default avatarRik Theys <Rik.Theys@esat.kuleuven.be>
      Signed-off-by: default avatarThadeu Lima de Souza Cascardo <cascardo@redhat.com>
      Tested-by: default avatarRik Theys <Rik.Theys@esat.kuleuven.be>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      47cc84ce
    • Nathan Sullivan's avatar
      ARM: zynq: DT: Use the zynq binding with macb · 9eeb5161
      Nathan Sullivan authored
      Use the new zynq binding for macb ethernet, since it will disable half
      duplex gigabit like the Zynq TRM says to do.
      Signed-off-by: default avatarNathan Sullivan <nathan.sullivan@ni.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      9eeb5161
    • Nathan Sullivan's avatar
      net: macb: Disable half duplex gigabit on Zynq · 222ca8e0
      Nathan Sullivan authored
      According to the Zynq TRM, gigabit half duplex is not supported.  Add a
      new cap and compatible string so Zynq can avoid advertising that mode.
      Signed-off-by: default avatarNathan Sullivan <nathan.sullivan@ni.com>
      Acked-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      222ca8e0
    • Nathan Sullivan's avatar
    • Michal Kubeček's avatar
      ipv4: fill in table id when replacing a route · d4e64c29
      Michal Kubeček authored
      When replacing an IPv4 route, tb_id member of the new fib_alias
      structure is not set in the replace code path so that the new route is
      ignored.
      
      Fixes: 0ddcf43d ("ipv4: FIB Local/MAIN table collapse")
      Signed-off-by: default avatarMichal Kubecek <mkubecek@suse.cz>
      Acked-by: default avatarAlexander Duyck <alexander.h.duyck@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d4e64c29
    • Bjørn Mork's avatar
      cdc_ncm: Fix tx_bytes statistics · 44f6731d
      Bjørn Mork authored
      The tx_curr_frame_payload field is u32. When we try to calculate a
      small negative delta based on it, we end up with a positive integer
      close to 2^32 instead.  So the tx_bytes pointer increases by about
      2^32 for every transmitted frame.
      
      Fix by calculating the delta as a signed long.
      
      Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
      Reported-by: default avatarFlorian Bruhin <me@the-compiler.org>
      Fixes: 7a1e890e ("usbnet: Fix tx_bytes statistic running backward in cdc_ncm")
      Signed-off-by: Bjørn Mork's avatarBjørn Mork <bjorn@mork.no>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      44f6731d
    • David S. Miller's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf · 572152ad
      David S. Miller authored
      Pablo Neira Ayuso says:
      
      ====================
      Netfilter fixes for net
      
      The following patchset contain Netfilter fixes for your net tree, they are:
      
      1) Fix a race in nfnetlink_log and nfnetlink_queue that can lead to a crash.
         This problem is due to wrong order in the per-net registration and netlink
         socket events. Patch from Francesco Ruggeri.
      
      2) Make sure that counters that userspace pass us are higher than 0 in all the
         x_tables frontends. Discovered via Trinity, patch from Dave Jones.
      
      3) Revert a patch for br_netfilter to rely on the conntrack status bits. This
         breaks stateless IPv6 NAT transformations. Patch from Florian Westphal.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      572152ad
    • Eric W. Biederman's avatar
      ipv4: Avoid crashing in ip_error · 381c759d
      Eric W. Biederman authored
      ip_error does not check if in_dev is NULL before dereferencing it.
      
      IThe following sequence of calls is possible:
      CPU A                          CPU B
      ip_rcv_finish
          ip_route_input_noref()
              ip_route_input_slow()
                                     inetdev_destroy()
          dst_input()
      
      With the result that a network device can be destroyed while processing
      an input packet.
      
      A crash was triggered with only unicast packets in flight, and
      forwarding enabled on the only network device.   The error condition
      was created by the removal of the network device.
      
      As such it is likely the that error code was -EHOSTUNREACH, and the
      action taken by ip_error (if in_dev had been accessible) would have
      been to not increment any counters and to have tried and likely failed
      to send an icmp error as the network device is going away.
      
      Therefore handle this weird case by just dropping the packet if
      !in_dev.  It will result in dropping the packet sooner, and will not
      result in an actual change of behavior.
      
      Fixes: 251da413 ("ipv4: Cache ip_error() routes even when not forwarding.")
      Reported-by: default avatarVittorio Gambaletta <linuxbugs@vittgam.net>
      Tested-by: default avatarVittorio Gambaletta <linuxbugs@vittgam.net>
      Signed-off-by: default avatarVittorio Gambaletta <linuxbugs@vittgam.net>
      Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
      Acked-by: default avatarEric Dumazet <edumazet@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      381c759d
    • Eric Dumazet's avatar
      tcp: fix a potential deadlock in tcp_get_info() · d654976c
      Eric Dumazet authored
      Taking socket spinlock in tcp_get_info() can deadlock, as
      inet_diag_dump_icsk() holds the &hashinfo->ehash_locks[i],
      while packet processing can use the reverse locking order.
      
      We could avoid this locking for TCP_LISTEN states, but lockdep would
      certainly get confused as all TCP sockets share same lockdep classes.
      
      [  523.722504] ======================================================
      [  523.728706] [ INFO: possible circular locking dependency detected ]
      [  523.734990] 4.1.0-dbg-DEV #1676 Not tainted
      [  523.739202] -------------------------------------------------------
      [  523.745474] ss/18032 is trying to acquire lock:
      [  523.750002]  (slock-AF_INET){+.-...}, at: [<ffffffff81669d44>] tcp_get_info+0x2c4/0x360
      [  523.758129]
      [  523.758129] but task is already holding lock:
      [  523.763968]  (&(&hashinfo->ehash_locks[i])->rlock){+.-...}, at: [<ffffffff816bcb75>] inet_diag_dump_icsk+0x1d5/0x6c0
      [  523.774661]
      [  523.774661] which lock already depends on the new lock.
      [  523.774661]
      [  523.782850]
      [  523.782850] the existing dependency chain (in reverse order) is:
      [  523.790326]
      -> #1 (&(&hashinfo->ehash_locks[i])->rlock){+.-...}:
      [  523.796599]        [<ffffffff811126bb>] lock_acquire+0xbb/0x270
      [  523.802565]        [<ffffffff816f5868>] _raw_spin_lock+0x38/0x50
      [  523.808628]        [<ffffffff81665af8>] __inet_hash_nolisten+0x78/0x110
      [  523.815273]        [<ffffffff816819db>] tcp_v4_syn_recv_sock+0x24b/0x350
      [  523.822067]        [<ffffffff81684d41>] tcp_check_req+0x3c1/0x500
      [  523.828199]        [<ffffffff81682d09>] tcp_v4_do_rcv+0x239/0x3d0
      [  523.834331]        [<ffffffff816842fe>] tcp_v4_rcv+0xa8e/0xc10
      [  523.840202]        [<ffffffff81658fa3>] ip_local_deliver_finish+0x133/0x3e0
      [  523.847214]        [<ffffffff81659a9a>] ip_local_deliver+0xaa/0xc0
      [  523.853440]        [<ffffffff816593b8>] ip_rcv_finish+0x168/0x5c0
      [  523.859624]        [<ffffffff81659db7>] ip_rcv+0x307/0x420
      
      Lets use u64_sync infrastructure instead. As a bonus, 64bit
      arches get optimized, as these are nop for them.
      
      Fixes: 0df48c26 ("tcp: add tcpi_bytes_acked to tcp_info")
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d654976c
    • Dave Airlie's avatar
      Merge branch 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux into drm-fixes · a8106b14
      Dave Airlie authored
      Just two small DP fixes for 4.1
      
      * 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux:
        drm/radeon: fix error flag checking in native aux path
        drm/radeon: retry dcpd fetch
      a8106b14
    • Dave Airlie's avatar
      Merge tag 'drm-intel-fixes-2015-05-21' of git://anongit.freedesktop.org/drm-intel into drm-fixes · bb435897
      Dave Airlie authored
      There's a stable backport from Ander [1] that combines this and a few
      other commits to fix the flickering on v4.0, reported in [2] among
      others. Having this upstream is obviously a requirement for stable.
      
      * tag 'drm-intel-fixes-2015-05-21' of git://anongit.freedesktop.org/drm-intel:
        drm/i915: fix screen flickering
      bb435897
    • Harald Freudenberger's avatar
      crypto: s390/ghash - Fix incorrect ghash icv buffer handling. · a1cae34e
      Harald Freudenberger authored
      Multitheaded tests showed that the icv buffer in the current ghash
      implementation is not handled correctly. A move of this working ghash
      buffer value to the descriptor context fixed this. Code is tested and
      verified with an multithreaded application via af_alg interface.
      
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarHarald Freudenberger <freude@linux.vnet.ibm.com>
      Signed-off-by: default avatarGerald Schaefer <geraldsc@linux.vnet.ibm.com>
      Reported-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      a1cae34e
    • Linus Torvalds's avatar
      Merge tag 'for-linus-4.1b-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip · 865d8722
      Linus Torvalds authored
      Pull two xen bugfixes from David Vrabel:
      
       - fix ARM build regression.
      
       - fix VIRQ_CONSOLE related oops.
      
      * tag 'for-linus-4.1b-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
        xen/events: don't bind non-percpu VIRQs with percpu chip
        xen/arm: Define xen_arch_suspend()
      865d8722
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · f0d8690a
      Linus Torvalds authored
      Pull KVM fixes from Paolo Bonzini:
       "This includes a fix for two oopses, one on PPC and on x86.
      
        The rest is fixes for bugs with newer Intel processors"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        kvm/fpu: Enable eager restore kvm FPU for MPX
        Revert "KVM: x86: drop fpu_activate hook"
        kvm: fix crash in kvm_vcpu_reload_apic_access_page
        KVM: MMU: fix SMAP virtualization
        KVM: MMU: fix CR4.SMEP=1, CR0.WP=0 with shadow pages
        KVM: MMU: fix smap permission check
        KVM: PPC: Book3S HV: Fix list traversal in error case
      f0d8690a
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · 2f8126e3
      Linus Torvalds authored
      Pull s390 fixes from Martin Schwidefsky:
       "Bug fixes.
      
        Three for our crypto code, two for eBPF, and one memory management fix
        to get machines with memory > 8TB working"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
        s390/mm: correct return value of pmd_pfn
        s390/crypto: fix stckf loop
        s390/zcrypt: Fix invalid domain handling during ap module unload
        s390/bpf: Fix gcov stack space problem
        s390/zcrypt: fixed ap poll timer behavior
        s390/bpf: Adjust ALU64_DIV/MOD to match interpreter change
      2f8126e3
    • Linus Torvalds's avatar
      Merge tag 'sound-4.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 0c68e5bf
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "This batch became slightly large, just because I've been on vacation
        for the last two weeks.  Nothing to scare much here, all
        device-specific fixes, mostly small patches.
      
        Majority of patches are for HD-audio, especially Dell machines.  The
        rest are small ASoC fixes for various codecs, and a USB-audio quirk.
      
        One PCM fix is included to ease the faulty condition checks in the
        case of two periods PCM buffers"
      
      * tag 'sound-4.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: hda - Disable widget power-saving for ALC292 & co
        ALSA: hda - Reduce verbs by node power-saves
        ALSA: sound/atmel/ac97c.c: remove unused variable
        ALSA: usb-audio: Add quirk for MS LifeCam Studio
        ALSA: pcm: Modify double acknowledged interrupts check condition
        ALSA: hda/realtek - ALC292 dock fix for Thinkpad L450
        ALSA: hda - Add Conexant codecs CX20721, CX20722, CX20723 and CX20724
        ALSA: hda - Fix headset mic and mic-in for a Dell desktop
        ASoC: wm8994: correct BCLK DIV 348 to 384
        ASoC: wm8960: fix "RINPUT3" audio route error
        ASoC: dapm: Modify widget stream name according to prefix
        ALSA: hda - Add headset mic quirk for Dell Inspiron 5548
        ASoC: rt5645: Fix mask for setting RT5645_DMIC_2_DP_GPIO12 bit
        ASoC: rt5645: Add ACPI match ID
        ALSA: hda/realtek - Add ALC298 alias name for Dell
        ASoC: uda1380: Avoid accessing i2c bus when codec is disabled
        ALSA: hda/realtek - Fix typo for ALC286/ALC288
        ASoC: mc13783: Fix wrong mask value used in mc13xxx_reg_rmw() calls
        ALSA: hda - Add headphone quirk for Lifebook E752
        ASoC: davinci-mcasp: Correct pm status check in suspend callback
      0c68e5bf
    • Linus Torvalds's avatar
      Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux · 18658921
      Linus Torvalds authored
      Pull thermal fixes from Zhang Rui:
       "Three fixes for Armada (380) and TI (dra7 and OMAP5) thermal soc
        drivers"
      
      * 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
        thermal: armada: Update Armada 380 thermal sensor coefficients
        thermal: ti-soc-thermal: OMAP5: Implement Workaround for Errata i813
        thermal: ti-soc-thermal: dra7: Implement Workaround for Errata i814
      18658921
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma · 83ee4121
      Linus Torvalds authored
      Pull infiniband/rdma fixes from Doug Ledford:
       "This should hopefully be the last request for 4.1-rc for the RDMA
        stack.  It contains some late ocrdma fixes that I'm including because
        they are small and self contained.  It also contains two bug fixes
        that are simple and easily verified.
      
        Summary:
      
         - a number of small, well contained bug fixes for ocrdma driver
      
         - a simple fix for the connection negotiation sequence on IB
      
         - fix for broken AF_IB address on UD queue pair support"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
        IB/cma: Fix broken AF_IB UD support
        ib/cm: Change reject message type when destroying cm_id
        RDMA/ocrdma: Update ocrdma version number
        RDMA/ocrdma: Fail connection for MTU lesser than 512
        RDMA/ocrdma: Fix dmac resolution for link local address
        RDMA/ocrdma: Prevent allocation of DPP PDs if FW doesnt support it
        RDMA/ocrdma: Fix the request length for RDMA_QUERY_QP mailbox command to FW.
        RDMA/ocrdma: Use VID 0 if PFC is enabled and vlan is not configured
        RDMA/ocrdma: Fix QP state transition in destroy_qp
        RDMA/ocrdma: Report EQ full fatal error
        RDMA/ocrdma: Fix EQ destroy failure during driver unload
      83ee4121
    • Linus Torvalds's avatar
      Merge tag 'mmc-4.1-rc3' of git://git.linaro.org/people/ulf.hansson/mmc · 97793a81
      Linus Torvalds authored
      Pull MMC fix from Ulf Hansson:
       "One more mmc fix intended for v4.1 rc5:
      
        MMC host:
         - atmel-mci: fix bad variable type for clkdiv"
      
      * tag 'mmc-4.1-rc3' of git://git.linaro.org/people/ulf.hansson/mmc:
        mmc: atmel-mci: fix bad variable type for clkdiv
      97793a81
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid · 6efdb114
      Linus Torvalds authored
      Pull HID fixes from Jiri Kosina:
       "Bugfixes for HID subsystem that should go in 4.1.  Important
        highlights:
      
         - the patch that extended support for HID++ protocol for TK820
           touchpad turns out to be causing regressions due to firmware
           issues; patch reverting back to basic support from Benjamin
           Tissoires
      
         - Wacom driver can oops for devices that report non-touch data on
           touch interfaces.  Fix from Ping Cheng
      
         - gpiolib is not mandatory for i2c-hid, so the driver shouldn't fail
           if gpiolib is not enabled.  Fix from Mika Westerberg"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
        HID: wacom: fix an Oops caused by wacom_wac_finger_count_touches
        HID: usbhid: Add HID_QUIRK_NOGET for Aten DVI KVM switch
        HID: hid-sensor-hub: Fix debug lock warning
        Revert "HID: logitech-hidpp: support combo keyboard touchpad TK820"
        HID: i2c-hid: Do not fail probing if gpiolib is not enabled
      6efdb114
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 · e51a3630
      Linus Torvalds authored
      Pull crypto fix from Herbert Xu:
       "This fixes a the crash in the newly added algif_aead interface when it
        tries to link SG lists"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
        crypto: algif_aead - fix invalid sgl linking
      e51a3630