1. 28 Nov, 2018 5 commits
  2. 25 Nov, 2018 5 commits
    • Linus Torvalds's avatar
      Linux 4.20-rc4 · 2e6e902d
      Linus Torvalds authored
    • Linus Torvalds's avatar
      Merge tag 'dma-mapping-4.20-3' of git://git.infradead.org/users/hch/dma-mapping · d6d460b8
      Linus Torvalds authored
      Pull dma-mapping fixes from Christoph Hellwig:
       "Two dma-direct / swiotlb regressions fixes:
         - zero is a valid physical address on some arm boards, we can't use
           it as the error value
         - don't try to cache flush the error return value (no matter what it
      * tag 'dma-mapping-4.20-3' of git://git.infradead.org/users/hch/dma-mapping:
        swiotlb: Skip cache maintenance on map error
        dma-direct: Make DIRECT_MAPPING_ERROR viable for SWIOTLB
    • Linus Torvalds's avatar
      Merge tag 'nfs-for-4.20-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs · 17c2f540
      Linus Torvalds authored
      Pull NFS client bugfixes from Trond Myklebust:
       - Fix a NFSv4 state manager deadlock when returning a delegation
       - NFSv4.2 copy do not allocate memory under the lock
       - flexfiles: Use the correct stateid for IO in the tightly coupled case
      * tag 'nfs-for-4.20-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
        flexfiles: use per-mirror specified stateid for IO
        NFSv4.2 copy do not allocate memory under the lock
        NFSv4: Fix a NFSv4 state manager deadlock
    • Luc Van Oostenryck's avatar
      MAINTAINERS: change Sparse's maintainer · 4e962ff6
      Luc Van Oostenryck authored
      I'm taking over the maintainance of Sparse so add myself as
      maintainer and move Christopher's info to CREDITS.
      Signed-off-by: default avatarLuc Van Oostenryck <luc.vanoostenryck@gmail.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Linus Torvalds's avatar
      Merge tag 'xarray-4.20-rc4' of git://git.infradead.org/users/willy/linux-dax · e2125dac
      Linus Torvalds authored
      Pull XArray updates from Matthew Wilcox:
       "We found some bugs in the DAX conversion to XArray (and one bug which
        predated the XArray conversion). There were a couple of bugs in some
        of the higher-level functions, which aren't actually being called in
        today's kernel, but surfaced as a result of converting existing radix
        tree & IDR users over to the XArray.
        Some of the other changes to how the higher-level APIs work were also
        motivated by converting various users; again, they're not in use in
        today's kernel, so changing them has a low probability of introducing
        a bug.
        Dan can still trigger a bug in the DAX code with hot-offline/online,
        and we're working on tracking that down"
      * tag 'xarray-4.20-rc4' of git://git.infradead.org/users/willy/linux-dax:
        XArray tests: Add missing locking
        dax: Avoid losing wakeup in dax_lock_mapping_entry
        dax: Fix huge page faults
        dax: Fix dax_unlock_mapping_entry for PMD pages
        dax: Reinstate RCU protection of inode
        dax: Make sure the unlocking entry isn't locked
        dax: Remove optimisation from dax_lock_mapping_entry
        XArray tests: Correct some 64-bit assumptions
        XArray: Correct xa_store_range
        XArray: Fix Documentation
        XArray: Handle NULL pointers differently for allocation
        XArray: Unify xa_store and __xa_store
        XArray: Add xa_store_bh() and xa_store_irq()
        XArray: Turn xa_erase into an exported function
        XArray: Unify xa_cmpxchg and __xa_cmpxchg
        XArray: Regularise xa_reserve
        nilfs2: Use xa_erase_irq
        XArray: Export __xa_foo to non-GPL modules
        XArray: Fix xa_for_each with a single element at 0
  3. 24 Nov, 2018 10 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid · e195ca6c
      Linus Torvalds authored
      Pull HID fixes from Jiri Kosina:
       - revert of the high-resolution scrolling feature, as it breaks certain
         hardware due to incompatibilities between Logitech and Microsoft
         worlds. Peter Hutterer is working on a fixed implementation. Until
         that is finished, revert by Benjamin Tissoires.
       - revert of incorrect strncpy->strlcpy conversion in uhid, from David
       - fix for buggy sendfile() implementation on uhid device node, from
         Eric Biggers
       - a few assorted device-ID specific quirks
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
        Revert "Input: Add the `REL_WHEEL_HI_RES` event code"
        Revert "HID: input: Create a utility class for counting scroll events"
        Revert "HID: logitech: Add function to enable HID++ 1.0 "scrolling acceleration""
        Revert "HID: logitech: Enable high-resolution scrolling on Logitech mice"
        Revert "HID: logitech: Use LDJ_DEVICE macro for existing Logitech mice"
        Revert "HID: logitech: fix a used uninitialized GCC warning"
        Revert "HID: input: simplify/fix high-res scroll event handling"
        HID: Add quirk for Primax PIXART OEM mice
        HID: i2c-hid: Disable runtime PM for LG touchscreen
        HID: multitouch: Add pointstick support for Cirque Touchpad
        HID: steam: remove input device when a hid client is running.
        Revert "HID: uhid: use strlcpy() instead of strncpy()"
        HID: uhid: forbid UHID_CREATE under KERNEL_DS or elevated privileges
        HID: input: Ignore battery reported by Symbol DS4308
        HID: Add quirk for Microsoft PIXART OEM mouse
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · d146194f
      Linus Torvalds authored
      Pull arm64 fixes from Catalin Marinas::
       - Fix wrong conflict resolution around CONFIG_ARM64_SSBD
       - Fix sparse warning on unsigned long constant
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: cpufeature: Fix mismerge of CONFIG_ARM64_SSBD block
        arm64: sysreg: fix sparse warnings
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 857fa628
      Linus Torvalds authored
      Pull networking fixes from David Miller:
       1) Need to take mutex in ath9k_add_interface(), from Dan Carpenter.
       2) Fix mt76 build without CONFIG_LEDS_CLASS, from Arnd Bergmann.
       3) Fix socket wmem accounting in SCTP, from Xin Long.
       4) Fix failed resume crash in ena driver, from Arthur Kiyanovski.
       5) qed driver passes bytes instead of bits into second arg of
          bitmap_weight(). From Denis Bolotin.
       6) Fix reset deadlock in ibmvnic, from Juliet Kim.
       7) skb_scrube_packet() needs to scrub the fwd marks too, from Petr
       8) Make sure older TCP stacks see enough dup ACKs, and avoid doing SACK
          compression during this period, from Eric Dumazet.
       9) Add atomicity to SMC protocol cursor handling, from Ursula Braun.
      10) Don't leave dangling error pointer if bpf_prog_add() fails in
          thunderx driver, from Lorenzo Bianconi. Also, when we unmap TSO
          headers, set sq->tso_hdrs to NULL.
      11) Fix race condition over state variables in act_police, from Davide
      12) Disable guest csum in the presence of XDP in virtio_net, from Jason
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (64 commits)
        net: gemini: Fix copy/paste error
        net: phy: mscc: fix deadlock in vsc85xx_default_config
        dt-bindings: dsa: Fix typo in "probed"
        net: thunderx: set tso_hdrs pointer to NULL in nicvf_free_snd_queue
        net: amd: add missing of_node_put()
        team: no need to do team_notify_peers or team_mcast_rejoin when disabling port
        virtio-net: fail XDP set if guest csum is negotiated
        virtio-net: disable guest csum during XDP set
        net/sched: act_police: add missing spinlock initialization
        net: don't keep lonely packets forever in the gro hash
        net/ipv6: re-do dad when interface has IFF_NOARP flag change
        packet: copy user buffers before orphan or clone
        ibmvnic: Update driver queues after change in ring size support
        ibmvnic: Fix RX queue buffer cleanup
        net: thunderx: set xdp_prog to NULL if bpf_prog_add fails
        net/dim: Update DIM start sample after each DIM iteration
        net: faraday: ftmac100: remove netif_running(netdev) check before disabling interrupts
        net/smc: use after free fix in smc_wr_tx_put_slot()
        net/smc: atomic SMCD cursor handling
        net/smc: add SMC-D shutdown signal
    • Linus Torvalds's avatar
      Merge tag 'xfs-4.20-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux · abe72ff4
      Linus Torvalds authored
      Pull xfs fixes from Darrick Wong:
       "Dave and I have continued our work fixing corruption problems that can
        be found when running long-term burn-in exercisers on xfs. Here are
        some patches fixing most of the problems, but there will likely be
        more. :/
         - Numerous corruption fixes for copy on write
         - Numerous corruption fixes for blocksize < pagesize writes
         - Don't miscalculate AG reservations for small final AGs
         - Fix page cache truncation to work properly for reflink and extent
         - Fix use-after-free when retrying failed inode/dquot buffer logging
         - Fix corruptions seen when using copy_file_range in directio mode"
      * tag 'xfs-4.20-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
        iomap: readpages doesn't zero page tail beyond EOF
        vfs: vfs_dedupe_file_range() doesn't return EOPNOTSUPP
        iomap: dio data corruption and spurious errors when pipes fill
        iomap: sub-block dio needs to zeroout beyond EOF
        iomap: FUA is wrong for DIO O_DSYNC writes into unwritten extents
        xfs: delalloc -> unwritten COW fork allocation can go wrong
        xfs: flush removing page cache in xfs_reflink_remap_prep
        xfs: extent shifting doesn't fully invalidate page cache
        xfs: finobt AG reserves don't consider last AG can be a runt
        xfs: fix transient reference count error in xfs_buf_resubmit_failed_buffers
        xfs: uncached buffer tracing needs to print bno
        xfs: make xfs_file_remap_range() static
        xfs: fix shared extent data corruption due to missing cow reservation
    • Andreas Fiedler's avatar
      net: gemini: Fix copy/paste error · 07093b76
      Andreas Fiedler authored
      The TX stats should be started with the tx_stats_syncp,
      there seems to be a copy/paste error in the driver.
      Signed-off-by: default avatarAndreas Fiedler <andreas.fiedler@gmx.net>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Quentin Schulz's avatar
      net: phy: mscc: fix deadlock in vsc85xx_default_config · 3fa528b7
      Quentin Schulz authored
      The vsc85xx_default_config function called in the vsc85xx_config_init
      function which is used by VSC8530, VSC8531, VSC8540 and VSC8541 PHYs
      mistakenly calls phy_read and phy_write in-between phy_select_page and
      phy_select_page and phy_restore_page actually take and release the MDIO
      bus lock and phy_write and phy_read take and release the lock to write
      or read to a PHY register.
      Let's fix this deadlock by using phy_modify_paged which handles
      correctly a read followed by a write in a non-standard page.
      Fixes: 6a0bfbbe ("net: phy: mscc: migrate to phy_select/restore_page functions")
      Signed-off-by: default avatarQuentin Schulz <quentin.schulz@bootlin.com>
      Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Fabio Estevam's avatar
      dt-bindings: dsa: Fix typo in "probed" · e7b9fb4f
      Fabio Estevam authored
      The correct form is "can be probed", so fix the typo.
      Signed-off-by: default avatarFabio Estevam <festevam@gmail.com>
      Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Lorenzo Bianconi's avatar
      net: thunderx: set tso_hdrs pointer to NULL in nicvf_free_snd_queue · ef2a7cf1
      Lorenzo Bianconi authored
      Reset snd_queue tso_hdrs pointer to NULL in nicvf_free_snd_queue routine
      since it is used to check if tso dma descriptor queue has been previously
      allocated. The issue can be triggered with the following reproducer:
      $ip link set dev enP2p1s0v0 xdpdrv obj xdp_dummy.o
      $ip link set dev enP2p1s0v0 xdpdrv off
      [  341.467649] WARNING: CPU: 74 PID: 2158 at mm/vmalloc.c:1511 __vunmap+0x98/0xe0
      [  341.515010] Hardware name: GIGABYTE H270-T70/MT70-HD0, BIOS T49 02/02/2018
      [  341.521874] pstate: 60400005 (nZCv daif +PAN -UAO)
      [  341.526654] pc : __vunmap+0x98/0xe0
      [  341.530132] lr : __vunmap+0x98/0xe0
      [  341.533609] sp : ffff00001c5db860
      [  341.536913] x29: ffff00001c5db860 x28: 0000000000020000
      [  341.542214] x27: ffff810feb5090b0 x26: ffff000017e57000
      [  341.547515] x25: 0000000000000000 x24: 00000000fbd00000
      [  341.552816] x23: 0000000000000000 x22: ffff810feb5090b0
      [  341.558117] x21: 0000000000000000 x20: 0000000000000000
      [  341.563418] x19: ffff000017e57000 x18: 0000000000000000
      [  341.568719] x17: 0000000000000000 x16: 0000000000000000
      [  341.574020] x15: 0000000000000010 x14: ffffffffffffffff
      [  341.579321] x13: ffff00008985eb27 x12: ffff00000985eb2f
      [  341.584622] x11: ffff0000096b3000 x10: ffff00001c5db510
      [  341.589923] x9 : 00000000ffffffd0 x8 : ffff0000086868e8
      [  341.595224] x7 : 3430303030303030 x6 : 00000000000006ef
      [  341.600525] x5 : 00000000003fffff x4 : 0000000000000000
      [  341.605825] x3 : 0000000000000000 x2 : ffffffffffffffff
      [  341.611126] x1 : ffff0000096b3728 x0 : 0000000000000038
      [  341.616428] Call trace:
      [  341.618866]  __vunmap+0x98/0xe0
      [  341.621997]  vunmap+0x3c/0x50
      [  341.624961]  arch_dma_free+0x68/0xa0
      [  341.628534]  dma_direct_free+0x50/0x80
      [  341.632285]  nicvf_free_resources+0x160/0x2d8 [nicvf]
      [  341.637327]  nicvf_config_data_transfer+0x174/0x5e8 [nicvf]
      [  341.642890]  nicvf_stop+0x298/0x340 [nicvf]
      [  341.647066]  __dev_close_many+0x9c/0x108
      [  341.650977]  dev_close_many+0xa4/0x158
      [  341.654720]  rollback_registered_many+0x140/0x530
      [  341.659414]  rollback_registered+0x54/0x80
      [  341.663499]  unregister_netdevice_queue+0x9c/0xe8
      [  341.668192]  unregister_netdev+0x28/0x38
      [  341.672106]  nicvf_remove+0xa4/0xa8 [nicvf]
      [  341.676280]  nicvf_shutdown+0x20/0x30 [nicvf]
      [  341.680630]  pci_device_shutdown+0x44/0x88
      [  341.684720]  device_shutdown+0x144/0x250
      [  341.688640]  kernel_restart_prepare+0x44/0x50
      [  341.692986]  kernel_restart+0x20/0x68
      [  341.696638]  __se_sys_reboot+0x210/0x238
      [  341.700550]  __arm64_sys_reboot+0x24/0x30
      [  341.704555]  el0_svc_handler+0x94/0x110
      [  341.708382]  el0_svc+0x8/0xc
      [  341.711252] ---[ end trace 3f4019c8439959c9 ]---
      [  341.715874] page:ffff7e0003ef4000 count:0 mapcount:0 mapping:0000000000000000 index:0x4
      [  341.723872] flags: 0x1fffe000000000()
      [  341.727527] raw: 001fffe000000000 ffff7e0003f1a008 ffff7e0003ef4048 0000000000000000
      [  341.735263] raw: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
      [  341.742994] page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)
      where xdp_dummy.c is a simple bpf program that forwards the incoming
      frames to the network stack (available here:
      Fixes: 05c773f5 ("net: thunderx: Add basic XDP support")
      Fixes: 4863dea3 ("net: Adding support for Cavium ThunderX network controller")
      Signed-off-by: default avatarLorenzo Bianconi <lorenzo.bianconi@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Yangtao Li's avatar
      net: amd: add missing of_node_put() · c44c749d
      Yangtao Li authored
      of_find_node_by_path() acquires a reference to the node
      returned by it and that reference needs to be dropped by its caller.
      This place doesn't do that, so fix it.
      Signed-off-by: default avatarYangtao Li <tiny.windzz@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Hangbin Liu's avatar
      team: no need to do team_notify_peers or team_mcast_rejoin when disabling port · 5ed9dc99
      Hangbin Liu authored
      team_notify_peers() will send ARP and NA to notify peers. team_mcast_rejoin()
      will send multicast join group message to notify peers. We should do this when
      enabling/changed to a new port. But it doesn't make sense to do it when a port
      is disabled.
      On the other hand, when we set mcast_rejoin_count to 2, and do a failover,
      team_port_disable() will increase mcast_rejoin.count_pending to 2 and then
      team_port_enable() will increase mcast_rejoin.count_pending to 4. We will send
      4 mcast rejoin messages at latest, which will make user confused. The same
      with notify_peers.count.
      Fix it by deleting team_notify_peers() and team_mcast_rejoin() in
      Reported-by: default avatarLiang Li <liali@redhat.com>
      Fixes: fc423ff0 ("team: add peer notification")
      Fixes: 492b200e ("team: add support for sending multicast rejoins")
      Signed-off-by: default avatarHangbin Liu <liuhangbin@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
  4. 23 Nov, 2018 19 commits
    • Jason Wang's avatar
      virtio-net: fail XDP set if guest csum is negotiated · 18ba58e1
      Jason Wang authored
      We don't support partial csumed packet since its metadata will be lost
      or incorrect during XDP processing. So fail the XDP set if guest_csum
      feature is negotiated.
      Fixes: f600b690 ("virtio_net: Add XDP support")
      Reported-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
      Cc: Jesper Dangaard Brouer <brouer@redhat.com>
      Cc: Pavel Popa <pashinho1990@gmail.com>
      Cc: David Ahern <dsahern@gmail.com>
      Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Jason Wang's avatar
      virtio-net: disable guest csum during XDP set · e59ff2c4
      Jason Wang authored
      We don't disable VIRTIO_NET_F_GUEST_CSUM if XDP was set. This means we
      can receive partial csumed packets with metadata kept in the
      vnet_hdr. This may have several side effects:
      - It could be overridden by header adjustment, thus is might be not
        correct after XDP processing.
      - There's no way to pass such metadata information through
        XDP_REDIRECT to another driver.
      - XDP does not support checksum offload right now.
      So simply disable guest csum if possible in this the case of XDP.
      Fixes: 3f93522f ("virtio-net: switch off offloads on demand if possible on XDP set")
      Reported-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
      Cc: Jesper Dangaard Brouer <brouer@redhat.com>
      Cc: Pavel Popa <pashinho1990@gmail.com>
      Cc: David Ahern <dsahern@gmail.com>
      Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Linus Torvalds's avatar
      Merge tag 'ceph-for-4.20-rc4' of https://github.com/ceph/ceph-client · 7c98a426
      Linus Torvalds authored
      Pullk ceph fix from Ilya Dryomov:
       "A messenger fix, marked for stable"
      * tag 'ceph-for-4.20-rc4' of https://github.com/ceph/ceph-client:
        libceph: fall back to sendmsg for slab pages
    • Linus Torvalds's avatar
      Merge tag 'for-linus-20181123' of git://git.kernel.dk/linux-block · 3381918f
      Linus Torvalds authored
      Pull block fix from Jens Axboe:
       "Just a single fix for this week, fixing an issue with nvme-fc"
      * tag 'for-linus-20181123' of git://git.kernel.dk/linux-block:
        nvme-fc: resolve io failures during connect
    • Davide Caratti's avatar
      net/sched: act_police: add missing spinlock initialization · 484afd1b
      Davide Caratti authored
      commit f2cbd485 ("net/sched: act_police: fix race condition on state
      variables") introduces a new spinlock, but forgets its initialization.
      Ensure that tcf_police_init() initializes 'tcfp_lock' every time a 'police'
      action is newly created, to avoid the following lockdep splat:
       INFO: trying to register non-static key.
       the code is fine but needs lockdep annotation.
       turning off the locking correctness validator.
       Call Trace:
        ? tcf_police_init+0x2fa/0x650 [act_police]
        ? lock_acquire+0x9e/0x1a0
        ? tcf_police_init+0x2fa/0x650 [act_police]
        ? tcf_police_init+0x55a/0x650 [act_police]
        ? tcf_police_init+0x2fa/0x650 [act_police]
        tcf_police_init+0x2fa/0x650 [act_police]
        ? netlink_deliver_tap+0x99/0x400
        ? validate_linkmsg+0x370/0x370
        ? _raw_spin_unlock+0x24/0x30
        ? handle_pte_fault+0xafe/0xf30
        ? find_held_lock+0x2d/0x90
        ? syscall_trace_enter+0x1df/0x360
        ? __sys_sendmsg+0x5e/0xa0
       RIP: 0033:0x7f1841c7cf10
       Code: c3 48 8b 05 82 6f 2c 00 f7 db 64 89 18 48 83 cb ff eb dd 0f 1f 80 00 00 00 00 83 3d 8d d0 2c 00 00 75 10 b8 2e 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ae cc 00 00 48 89 04 24
       RSP: 002b:00007ffcf9df4d68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
       RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f1841c7cf10
       RDX: 0000000000000000 RSI: 00007ffcf9df4dc0 RDI: 0000000000000003
       RBP: 000000005bf56105 R08: 0000000000000002 R09: 00007ffcf9df8edc
       R10: 00007ffcf9df47e0 R11: 0000000000000246 R12: 0000000000671be0
       R13: 00007ffcf9df4e84 R14: 0000000000000008 R15: 0000000000000000
      Fixes: f2cbd485 ("net/sched: act_police: fix race condition on state variables")
      Reported-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
      Signed-off-by: default avatarDavide Caratti <dcaratti@redhat.com>
      Acked-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
      Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Paolo Abeni's avatar
      net: don't keep lonely packets forever in the gro hash · 605108ac
      Paolo Abeni authored
      Eric noted that with UDP GRO and NAPI timeout, we could keep a single
      UDP packet inside the GRO hash forever, if the related NAPI instance
      calls napi_gro_complete() at an higher frequency than the NAPI timeout.
      Willem noted that even TCP packets could be trapped there, till the
      next retransmission.
      This patch tries to address the issue, flushing the old packets -
      those with a NAPI_GRO_CB age before the current jiffy - before scheduling
      the NAPI timeout. The rationale is that such a timeout should be
      well below a jiffy and we are not flushing packets eligible for sane GRO.
      v1  -> v2:
       - clarified the commit message and comment
      RFC -> v1:
       - added 'Fixes tags', cleaned-up the wording.
      Reported-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
      Fixes: 3b47d303 ("net: gro: add a per device gro flush timer")
      Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      Acked-by: default avatarWillem de Bruijn <willemb@google.com>
      Acked-by: default avatarEric Dumazet <edumazet@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Hangbin Liu's avatar
      net/ipv6: re-do dad when interface has IFF_NOARP flag change · 896585d4
      Hangbin Liu authored
      When we add a new IPv6 address, we should also join corresponding solicited-node
      multicast address, unless the interface has IFF_NOARP flag, as function
      addrconf_join_solict() did. But if we remove IFF_NOARP flag later, we do
      not do dad and add the mcast address. So we will drop corresponding neighbour
      discovery message that came from other nodes.
      A typical example is after creating a ipvlan with mode l3, setting up an ipv6
      address and changing the mode to l2. Then we will not be able to ping this
      address as the interface doesn't join related solicited-node mcast address.
      Fix it by re-doing dad when interface changed IFF_NOARP flag. Then we will add
      corresponding mcast group and check if there is a duplicate address on the
      Reported-by: default avatarJianlin Shi <jishi@redhat.com>
      Reviewed-by: default avatarStefano Brivio <sbrivio@redhat.com>
      Signed-off-by: default avatarHangbin Liu <liuhangbin@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Linus Torvalds's avatar
      Merge tag 'iommu-fixes-v4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu · d88783b9
      Linus Torvalds authored
      Pull IOMMU fixes from Joerg Roedel:
       - Two fixes for the Intel VT-d driver to fix a NULL-ptr dereference and
         an unbalance in an allocate/free path (allocated with memremap, freed
         with iounmap)
       - Fix for a crash in the Renesas IOMMU driver
       - Fix for the Advanced Virtual Interrupt Controler (AVIC) code in the
         AMD IOMMU driver
      * tag 'iommu-fixes-v4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
        iommu/vt-d: Use memunmap to free memremap
        amd/iommu: Fix Guest Virtual APIC Log Tail Address Register
        iommu/ipmmu-vmsa: Fix crash on early domain free
        iommu/vt-d: Fix NULL pointer dereference in prq_event_thread()
    • Willem de Bruijn's avatar
      packet: copy user buffers before orphan or clone · 5cd8d46e
      Willem de Bruijn authored
      tpacket_snd sends packets with user pages linked into skb frags. It
      notifies that pages can be reused when the skb is released by setting
      skb->destructor to tpacket_destruct_skb.
      This can cause data corruption if the skb is orphaned (e.g., on
      transmit through veth) or cloned (e.g., on mirror to another psock).
      Create a kernel-private copy of data in these cases, same as tun/tap
      zerocopy transmission. Reuse that infrastructure: mark the skb as
      SKBTX_ZEROCOPY_FRAG, which will trigger copy in skb_orphan_frags(_rx).
      Unlike other zerocopy packets, do not set shinfo destructor_arg to
      struct ubuf_info. tpacket_destruct_skb already uses that ptr to notify
      when the original skb is released and a timestamp is recorded. Do not
      change this timestamp behavior. The ubuf_info->callback is not needed
      anyway, as no zerocopy notification is expected.
      Mark destructor_arg as not-a-uarg by setting the lower bit to 1. The
      resulting value is not a valid ubuf_info pointer, nor a valid
      tpacket_snd frame address. Add skb_zcopy_.._nouarg helpers for this.
      The fix relies on features introduced in commit 52267790 ("sock:
      add MSG_ZEROCOPY"), so can be backported as is only to 4.14.
      Tested with from `./in_netns.sh ./txring_overwrite` from
      Fixes: 69e3c75f ("net: TX_RING and packet mmap")
      Reported-by: default avatarAnand H. Krishnan <anandhkrishnan@gmail.com>
      Signed-off-by: default avatarWillem de Bruijn <willemb@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Linus Torvalds's avatar
      Merge tag 'acpi-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · a03bac58
      Linus Torvalds authored
      Pull ACPI fix from Rafael Wysocki:
       "Prevent the ACPI core from registering a platform device for the
        SMB0001 HID to avoid IRQ allocation issues (Hans de Goede)"
      * tag 'acpi-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ACPI / platform: Add SMB0001 HID to forbidden_id_list
    • Linus Torvalds's avatar
      Merge tag 'pm-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · b88af994
      Linus Torvalds authored
      Pull power management fixes from Rafael Wysocki:
       "These fix two issues in the Operating Performance Points (OPP)
        framework, one cpufreq driver issue, one problem related to the tasks
        freezer and a few build-related issues in the cpupower utility.
         - Fix tasks freezer deadlock in de_thread() that occurs if one of its
           sub-threads has been frozen already (Chanho Min).
         - Avoid registering a platform device by the ti-cpufreq driver on
           platforms that cannot use it (Dave Gerlach).
         - Fix a mistake in the ti-opp-supply operating performance points
           (OPP) driver that caused an incorrect reference voltage to be used
           and make it adjust the minimum voltage dynamically to avoid hangs
           or crashes in some cases (Keerthy).
         - Fix issues related to compiler flags in the cpupower utility and
           correct a linking problem in it by renaming a file with a duplicate
           name (Jiri Olsa, Konstantin Khlebnikov)"
      * tag 'pm-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        exec: make de_thread() freezable
        cpufreq: ti-cpufreq: Only register platform_device when supported
        opp: ti-opp-supply: Correct the supply in _get_optimal_vdd_voltage call
        opp: ti-opp-supply: Dynamically update u_volt_min
        tools cpupower: Override CFLAGS assignments
        tools cpupower debug: Allow to use outside build flags
        tools/power/cpupower: fix compilation with STATIC=true
    • Will Deacon's avatar
      arm64: cpufeature: Fix mismerge of CONFIG_ARM64_SSBD block · 4f9f4964
      Will Deacon authored
      When merging support for SSBD and the CRC32 instructions, the conflict
      resolution for the new capability entries in arm64_features[]
      inadvertedly predicated the availability of the CRC32 instructions on
      CONFIG_ARM64_SSBD, despite the functionality being entirely unrelated.
      Move the #ifdef CONFIG_ARM64_SSBD down so that it only covers the SSBD
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
    • Linus Torvalds's avatar
      Merge tag 'gpio-v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · e6005d3c
      Linus Torvalds authored
      Pull GPIO fixes from Linus Walleij:
       "Minor stuff except the IDA leak which was kind of important to fix.
        Also new maintainers, yay.
         - Do not lose an IDA on the gpiochip register errorpath.
         - Fix the PXA non-pincontrol GPIO-using platforms.
         - Fix the direction on the mockup GPIO driver.
         - Add some MAINTAINERS stuff: Bartosz stepped up as GPIO
           co-maintainer, and Andy established an Intel git tree"
      * tag 'gpio-v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
        MAINTAINERS: Do maintain Intel GPIO drivers via separate tree
        gpio: mockup: fix indicated direction
        gpio: pxa: fix legacy non pinctrl aware builds again
        gpio: don't free unallocated ida on gpiochip_add_data_with_key() error path
        MAINTAINERS: add myself as co-maintainer of gpiolib
    • Linus Torvalds's avatar
      Merge tag 'mmc-v4.20-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc · dcd3aa31
      Linus Torvalds authored
      Pull MMC fixes from Ulf Hansson:
       "MMC host:
         - sdhci-pci: Fixup card detect lookup
         - sdhci-pci: Workaround GLK firmware bug for tuning"
      * tag 'mmc-v4.20-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
        mmc: sdhci-pci: Workaround GLK firmware failing to restore the tuning value
        mmc: sdhci-pci: Try "cd" for card-detect lookup before using NULL
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-2018-11-23' of git://anongit.freedesktop.org/drm/drm · 9b7c880c
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Regular drm fixes:
         - Vega20 fixes
         - firmware loading fix
         - panel display fix
         - override fix
         - Sandybridge lockup fix
         - fastboot DSI panel fix
         - GPU hang on Broxton
         - GPU reloc fixes on pineview/bearlake
         - screen blurring fix
         - cursor appearance fix
         - mmap fix
         - NULL deref fix
         - async cursor update fix
        All seems pretty normal at this stage"
      * tag 'drm-fixes-2018-11-23' of git://anongit.freedesktop.org/drm/drm:
        drm/ast: fixed cursor may disappear sometimes
        drm/ast: change resolution may cause screen blurred
        drm/i915: Add rotation readout for plane initial config
        drm/i915: Force a LUT update in intel_initial_commit()
        drm/fb-helper: Blacklist writeback when adding connectors to fbdev
        drm/i915: Write GPU relocs harder with gen3
        drm/amdgpu: Enable HDP memory light sleep
        drm/i915: Prevent machine hang from Broxton's vtd w/a and error capture
        drm/amd/pp: handle negative values when reading OD
        drm/amdgpu: Add missing firmware entry for HAINAN
        drm/amd/powerplay: disable Vega20 DS related features
        drm/amdgpu: Fix oops when pp_funcs->switch_power_profile is unset
        drm/i915: Disable LP3 watermarks on all SNB machines
        drm/ast: Remove existing framebuffers before loading driver
        udmabuf: set read/write flag when exporting
        drm/amd/display: Support amdgpu "max bpc" connector property (v2)
        drm/amdgpu: Add amdgpu "max bpc" connector property (v2)
        drm/vc4: Set ->legacy_cursor_update to false when doing non-async updates
        drm/vc4: Fix NULL pointer dereference in the async update path
    • Sergey Matyukevich's avatar
      arm64: sysreg: fix sparse warnings · b5d9a07e
      Sergey Matyukevich authored
      Specify correct type for the constants to avoid
      the following sparse complaints:
      ./arch/arm64/include/asm/sysreg.h:471:42: warning: constant 0xffffffffffffffff is so big it is unsigned long
      ./arch/arm64/include/asm/sysreg.h:512:42: warning: constant 0xffffffffffffffff is so big it is unsigned long
      Acked-by: default avatarWill Deacon <will.deacon@arm.com>
      Acked-by: default avatarOlof Johansson <olof@lixom.net>
      Acked-by: default avatarLuc Van Oostenryck <luc.vanoostenryck@gmail.com>
      Signed-off-by: default avatarSergey Matyukevich <geomatsi@gmail.com>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
    • Rafael J. Wysocki's avatar
      Merge branches 'pm-cpufreq' and 'pm-sleep' · 1d50088c
      Rafael J. Wysocki authored
      * pm-cpufreq:
        cpufreq: ti-cpufreq: Only register platform_device when supported
      * pm-sleep:
        exec: make de_thread() freezable
    • Rafael J. Wysocki's avatar
      Merge branches 'pm-opp' and 'pm-tools' · bec00cb5
      Rafael J. Wysocki authored
      * pm-opp:
        opp: ti-opp-supply: Correct the supply in _get_optimal_vdd_voltage call
        opp: ti-opp-supply: Dynamically update u_volt_min
      * pm-tools:
        tools cpupower: Override CFLAGS assignments
        tools cpupower debug: Allow to use outside build flags
        tools/power/cpupower: fix compilation with STATIC=true
    • Dave Airlie's avatar
      Merge tag 'drm-intel-fixes-2018-11-22' of... · 98c9cdfd
      Dave Airlie authored
      Merge tag 'drm-intel-fixes-2018-11-22' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
      - Fix for fastboot DSI panel boot time flicker regression, also fixes Bugzilla #108225
      - Fix Bugzilla #101269 to avoid GPU hangs on Sandybridge machines
      - Avoid GPU hang on error capture on Broxton with Vt-d enabled
      - Avoid missing GPU relocations on Pineview and Bearlake (Gen3)
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20181122120555.GA18282@jlahtine-desk.ger.corp.intel.com
  5. 22 Nov, 2018 1 commit
    • David S. Miller's avatar
      Merge branch 'ibmvnic-Fix-queue-and-buffer-accounting-errors' · 039e70a7
      David S. Miller authored
      Thomas Falcon says:
      ibmvnic: Fix queue and buffer accounting errors
      This series includes two small fixes. The first resolves a typo bug
      in the code to clean up unused RX buffers during device queue removal.
      The second ensures that device queue memory is updated to reflect new
      supported queue ring sizes after migration to other backing hardware.
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>