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2018-11-24drm: replace "drm_connector_unreference" with "drm_connector_put"Fernando Ramos1-1/+1
This patch unifies the naming of DRM functions for reference counting as requested on Documentation/gpu/todo.rst Signed-off-by: Fernando Ramos <greenfoo@gluegarage.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20181115221634.22715-6-greenfoo@gluegarage.com
2018-11-24drm: remove deprecated "drm_dev_unref" functionFernando Ramos2-14/+0
There are no more places where this (deprecated) function is being used from, thus it can now be removed. Signed-off-by: Fernando Ramos <greenfoo@gluegarage.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20181115221634.22715-5-greenfoo@gluegarage.com
2018-11-24drm: replace "drm_dev_unref" function with "drm_dev_put"Fernando Ramos6-11/+11
This patch unifies the naming of DRM functions for reference counting as requested on Documentation/gpu/todo.rst Signed-off-by: Fernando Ramos <greenfoo@gluegarage.com> Acked-by: Boris Brezillon <boris.brezillon@bootlin.com> Acked-by: Alexey Brodkin <abrodkin@synopsys.com> Acked-by: Stefan Agner <stefan@agner.ch> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20181115221634.22715-4-greenfoo@gluegarage.com
2018-11-24drm: remove deprecated "[__]drm_gem_object_[un]reference[_locked]" functionsFernando Ramos1-50/+0
There are no more places where these (deprecated) functions are being used from, thus they can now be removed. Signed-off-by: Fernando Ramos <greenfoo@gluegarage.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20181115221634.22715-3-greenfoo@gluegarage.com
2018-11-24Merge branch 'for-linus' of ↵Linus Torvalds11-444/+159
git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 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 Herrmann - 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
2018-11-24Merge tag 'arm64-fixes' of ↵Linus Torvalds2-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux 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
2018-11-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds67-335/+537
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 Machata. 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 Caratti. 12) Disable guest csum in the presence of XDP in virtio_net, from Jason Wang. * 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 ...
2018-11-24Merge tag 'xfs-4.20-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds10-46/+104
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 shifting - 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
2018-11-23net: gemini: Fix copy/paste errorAndreas Fiedler1-1/+1
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: Andreas Fiedler <andreas.fiedler@gmx.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23net: phy: mscc: fix deadlock in vsc85xx_default_configQuentin Schulz1-9/+5
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_restore_page. 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: 6a0bfbbe20b0 ("net: phy: mscc: migrate to phy_select/restore_page functions") Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23dt-bindings: dsa: Fix typo in "probed"Fabio Estevam1-1/+1
The correct form is "can be probed", so fix the typo. Signed-off-by: Fabio Estevam <festevam@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23net: thunderx: set tso_hdrs pointer to NULL in nicvf_free_snd_queueLorenzo Bianconi1-1/+3
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: https://github.com/altoor/xdp_walkthrough_examples/blob/master/sample_1/xdp_dummy.c) Fixes: 05c773f52b96 ("net: thunderx: Add basic XDP support") Fixes: 4863dea3fab0 ("net: Adding support for Cavium ThunderX network controller") Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23net: amd: add missing of_node_put()Yangtao Li1-1/+3
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: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23team: no need to do team_notify_peers or team_mcast_rejoin when disabling portHangbin Liu1-2/+0
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 team_port_disable(). Reported-by: Liang Li <liali@redhat.com> Fixes: fc423ff00df3a ("team: add peer notification") Fixes: 492b200efdd20 ("team: add support for sending multicast rejoins") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23virtio-net: fail XDP set if guest csum is negotiatedJason Wang1-2/+3
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: f600b6905015 ("virtio_net: Add XDP support") Reported-by: Jesper 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: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23virtio-net: disable guest csum during XDP setJason Wang1-6/+2
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: 3f93522ffab2d ("virtio-net: switch off offloads on demand if possible on XDP set") Reported-by: Jesper 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: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23Merge tag 'ceph-for-4.20-rc4' of https://github.com/ceph/ceph-clientLinus Torvalds1-3/+9
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
2018-11-23Merge tag 'for-linus-20181123' of git://git.kernel.dk/linux-blockLinus Torvalds1-10/+63
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
2018-11-23net/sched: act_police: add missing spinlock initializationDavide Caratti1-0/+1
commit f2cbd4852820 ("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: dump_stack+0x85/0xcb register_lock_class+0x581/0x590 __lock_acquire+0xd4/0x1330 ? tcf_police_init+0x2fa/0x650 [act_police] ? lock_acquire+0x9e/0x1a0 lock_acquire+0x9e/0x1a0 ? tcf_police_init+0x2fa/0x650 [act_police] ? tcf_police_init+0x55a/0x650 [act_police] _raw_spin_lock_bh+0x34/0x40 ? tcf_police_init+0x2fa/0x650 [act_police] tcf_police_init+0x2fa/0x650 [act_police] tcf_action_init_1+0x384/0x4c0 tcf_action_init+0xf6/0x160 tcf_action_add+0x73/0x170 tc_ctl_action+0x122/0x160 rtnetlink_rcv_msg+0x2a4/0x490 ? netlink_deliver_tap+0x99/0x400 ? validate_linkmsg+0x370/0x370 netlink_rcv_skb+0x4d/0x130 netlink_unicast+0x196/0x230 netlink_sendmsg+0x2e5/0x3e0 sock_sendmsg+0x36/0x40 ___sys_sendmsg+0x280/0x2f0 ? _raw_spin_unlock+0x24/0x30 ? handle_pte_fault+0xafe/0xf30 ? find_held_lock+0x2d/0x90 ? syscall_trace_enter+0x1df/0x360 ? __sys_sendmsg+0x5e/0xa0 __sys_sendmsg+0x5e/0xa0 do_syscall_64+0x60/0x210 entry_SYSCALL_64_after_hwframe+0x49/0xbe 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: f2cbd4852820 ("net/sched: act_police: fix race condition on state variables") Reported-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23net: don't keep lonely packets forever in the gro hashPaolo Abeni1-2/+5
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: Eric Dumazet <eric.dumazet@gmail.com> Fixes: 3b47d30396ba ("net: gro: add a per device gro flush timer") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Willem de Bruijn <willemb@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23net/ipv6: re-do dad when interface has IFF_NOARP flag changeHangbin Liu1-6/+13
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 network. Reported-by: Jianlin Shi <jishi@redhat.com> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23Merge tag 'iommu-fixes-v4.20-rc3' of ↵Linus Torvalds4-3/+7
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu 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()
2018-11-23packet: copy user buffers before orphan or cloneWillem de Bruijn2-3/+19
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 52267790ef52 ("sock: add MSG_ZEROCOPY"), so can be backported as is only to 4.14. Tested with from `./in_netns.sh ./txring_overwrite` from http://github.com/wdebruij/kerneltools/tests Fixes: 69e3c75f4d54 ("net: TX_RING and packet mmap") Reported-by: Anand H. Krishnan <anandhkrishnan@gmail.com> Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23Merge tag 'acpi-4.20-rc4' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 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
2018-11-23Merge tag 'pm-4.20-rc4' of ↵Linus Torvalds10-22/+42
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 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. Specifics: - 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
2018-11-23arm64: cpufeature: Fix mismerge of CONFIG_ARM64_SSBD blockWill Deacon1-1/+1
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 capability. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-11-23Merge tag 'gpio-v4.20-2' of ↵Linus Torvalds4-19/+30
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio 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
2018-11-23Merge tag 'mmc-v4.20-rc2' of ↵Linus Torvalds1-3/+83
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc 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
2018-11-23Merge tag 'drm-fixes-2018-11-23' of git://anongit.freedesktop.org/drm/drmLinus Torvalds24-63/+273
Pull drm fixes from Dave Airlie: "Regular drm fixes: amdgpu: - Vega20 fixes - firmware loading fix - panel display fix - override fix i915: - Sandybridge lockup fix - fastboot DSI panel fix - GPU hang on Broxton - GPU reloc fixes on pineview/bearlake ast: - screen blurring fix - cursor appearance fix udmabuf: - mmap fix vc4: - 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
2018-11-23arm64: sysreg: fix sparse warningsSergey Matyukevich1-2/+2
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: Will Deacon <will.deacon@arm.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-11-23drm/atomic-helper: WARN if fake_commit->hw_done is not completed as expectedVille Syrjälä1-1/+3
For real commits we WARN if ->hw_done hasn't been completed by the time drm_atomic_helper_commit_cleanup_done() is called. Let's do the same for the fake commit. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181122143412.11655-2-ville.syrjala@linux.intel.com Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2018-11-23drm/atomic-helper: Complete fake_commit->flip_done potentially earlierVille Syrjälä1-0/+3
Consider the following scenario: 1. nonblocking enable crtc 2. wait for the event 3. nonblocking disable crtc On i915 this can lead to a spurious -EBUSY from step 3 on account of non-enabled planes getting the fake_commit in step 1 and we don't complete the fake_commit-> flip_done until drm_atomic_helper_commit_hw_done() which can happen a long time after the flip event was sent out. This will become somewhat easy to hit on SKL+ once we start to add all the planes for the crtc to every modeset commit for the purposes of forcing a watermark register programming [1]. To make the race a little less pronounced let's complete fake_commit->flip_done after drm_atomic_helper_wait_for_flip_done(). For the single crtc case this should make the race quite theoretical, assuming drm_atomic_helper_wait_for_flip_done() actually has to wait for the real commit flip_done. In case the real commit flip_done gets completed singificantly before drm_atomic_helper_wait_for_flip_done(), or we are dealing with multiple crtcs whose vblanks don't line up nicely the race still exists. [1] https://patchwork.freedesktop.org/patch/262670/ Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Fixes: 080de2e5be2d ("drm/atomic: Check for busy planes/connectors before setting the commit") Testcase: igt/kms_cursor_legacy/*nonblocking-modeset-vs-cursor-atomic Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181122143412.11655-1-ville.syrjala@linux.intel.com Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2018-11-23drm: rcar-du: Reject modes that fail CRTC timing requirementsLaurent Pinchart1-0/+12
The hardware requires the HDSR and VDSR registers to be set to 1 or higher. This translates to a minimum combined horizontal sync and back porch of 20 pixels and a minimum vertical back porch of 3 lines. Reject modes that fail those requirements. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
2018-11-23drm: rcar-du: Fix external clock error checksLaurent Pinchart1-5/+9
The rcar-du driver supports probe deferral for external clocks, but implements it badly by checking the wrong pointer due to a bad copy and paste. Fix it. While at it, reject invalid clocks outright for DU channels that have a display PLL, as the external clock is mandatory in that case. This avoids a WARN_ON() at runtime. Fixes: 1b30dbde8596 ("drm: rcar-du: Add support for external pixel clock") Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
2018-11-23drm: rcar-du: Enable alpha property on primary planesKieran Bingham1-1/+2
The hardware supports alpha on all planes, and using it on the primary plane can be useful. Don't restrict the alpha property to overlay planes. Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2018-11-23drm: rcar-du: lvds: Add R8A77965 supportLaurent Pinchart1-0/+1
Add support for the R-Car M3-N (R8A77965) SoC to the LVDS encoder driver. The encoder appears identical to the M3-W version, we can thus simply point to the generic Gen3 data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
2018-11-23dt-bindings: display: renesas: lvds: Document r8a77965 bindingsLaurent Pinchart1-0/+1
The M3-N (r8a77965) includes one LVDS encoder. Extend the binding to support it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
2018-11-23drm: rcar-du: Fix vblank initializationLaurent Pinchart1-1/+1
The drm_vblank_init() takes the total number of CRTCs as an argument, but the rcar-du driver passes a bitmask of the CRTC indices. Fix it. Fixes: 4bf8e1962f91 ("drm: Renesas R-Car Display Unit DRM driver") Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
2018-11-23drm: rcar-du: Fix the return value in case of error in ↵Christophe JAILLET1-1/+1
'rcar_du_crtc_set_crc_source()' We return 0 unconditionally in 'rcar_du_crtc_set_crc_source()'. However, 'ret' is set to some error codes if some function calls fail. Return 'ret' instead to propagate the error code. Fixes: 47a52d024e89 ("media: drm: rcar-du: Add support for CRC computation") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2018-11-23drm: rcar-du: Add R8A7744 supportBiju Das1-1/+2
Add support for the R8A7744 DU (which is very similar to the R8A7743 DU); it has 1 DPAD (RGB) output and 1 LVDS output. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2018-11-23drm: rcar-du: Add r8a77470 supportFabrizio Castro1-0/+28
Add RZ/G1C (a.k.a. r8a77470) support to the R-Car DU driver. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2018-11-23dt-bindings: display: renesas: du: Document the r8a7744 bindingsBiju Das1-0/+2
Document the RZ/G1N (R8A7744) SoC in the R-Car DU bindings. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2018-11-23dt-bindings: display: renesas: du: Document the r8a77470 bindingsFabrizio Castro1-0/+2
Document the RZ/G1C (r8a77470) SoC in R-Car DU bindings. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2018-11-23drm: rcar-du: Fix typo in commentLaurent Pinchart1-1/+1
Fix the misspelled 'belance' in a comment. Reported-by: Ulrich Hecht <uli+renesas@fpond.eu> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2018-11-23drm/shmobile: Replace drm_dev_unref with drm_dev_putThomas Zimmermann1-2/+2
This patch unifies the naming of DRM functions for reference counting of struct drm_device. The resulting code is more aligned with the rest of the Linux kernel interfaces. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2018-11-23drm/rcar-du: Replace drm_dev_unref with drm_dev_putThomas Zimmermann1-1/+1
This patch unifies the naming of DRM functions for reference counting of struct drm_device. The resulting code is more aligned with the rest of the Linux kernel interfaces. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2018-11-23Merge branches 'pm-cpufreq' and 'pm-sleep'Rafael J. Wysocki2-7/+24
* pm-cpufreq: cpufreq: ti-cpufreq: Only register platform_device when supported * pm-sleep: exec: make de_thread() freezable
2018-11-23Merge branches 'pm-opp' and 'pm-tools'Rafael J. Wysocki7-14/+14
* 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
2018-11-23Merge tag 'drm-intel-fixes-2018-11-22' of ↵Dave Airlie7-4/+112
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: Dave 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
2018-11-22Merge branch 'ibmvnic-Fix-queue-and-buffer-accounting-errors'David S. Miller1-3/+10
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: David S. Miller <davem@davemloft.net>
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