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2018-09-13Merge tag 'for-4.19/dm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: - DM verity fix for crash due to using vmalloc'd buffers with the asynchronous crypto hadsh API. - Fix to both DM crypt and DM integrity targets to discontinue using CRYPTO_TFM_REQ_MAY_SLEEP because its use of GFP_KERNEL can lead to deadlock by recursing back into a filesystem. - Various DM raid fixes related to reshape and rebuild races. - Fix for DM thin-provisioning to avoid data corruption that was a side-effect of needing to abort DM thin metadata transaction due to running out of metadata space. Fix is to reserve a small amount of metadata space so that once it is used the DM thin-pool can finish its active transaction before switching to read-only mode. * tag 'for-4.19/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm thin metadata: try to avoid ever aborting transactions dm raid: bump target version, update comments and documentation dm raid: fix RAID leg rebuild errors dm raid: fix rebuild of specific devices by updating superblock dm raid: fix stripe adding reshape deadlock dm raid: fix reshape race on small devices dm: disable CRYPTO_TFM_REQ_MAY_SLEEP to fix a GFP_KERNEL recursion deadlock dm verity: fix crash on bufio buffer that was allocated with vmalloc
2018-09-13Merge tag 'drm-fixes-2018-09-14' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "This is the general drm fixes pull for rc4. i915: - Two GVT fixes (one for the mm reference issue you pointed out) - Gen 2 video playback fix - IPS timeout error suppression on Broadwell amdgpu: - Small memory leak - SR-IOV reset - locking fix - updated SDMA golden registers nouveau: - Remove some leftover debugging" * tag 'drm-fixes-2018-09-14' of git://anongit.freedesktop.org/drm/drm: drm/nouveau/devinit: fix warning when PMU/PRE_OS is missing drm/amdgpu: fix error handling in amdgpu_cs_user_fence_chunk drm/i915/overlay: Allocate physical registers from stolen drm/amdgpu: move PSP init prior to IH in gpu reset drm/amdgpu: Fix SDMA hang in prt mode v2 drm/amdgpu: fix amdgpu_mn_unlock() in the CS error path drm/i915/bdw: Increase IPS disable timeout to 100ms drm/i915/gvt: Fix the incorrect length of child_device_config issue drm/i915/gvt: Fix life cycle reference on KVM mm
2018-09-13Merge tag 'pstore-v4.19-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull pstore fix from Kees Cook: "This fixes a 6 year old pstore bug that everyone just got lucky in avoiding, likely due only using page-aligned persistent ram regions: - Handle page-vs-byte offset handling between iomap and vmap (Bin Yang)" * tag 'pstore-v4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: pstore: Fix incorrect persistent ram buffer mapping
2018-09-13Merge tag 'mmc-v4.19-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC host fixes from Ulf Hansson: - meson-mx-sdio: Fix OF child-node lookup - omap_hsmmc: Fix wakeirq handling on removal * tag 'mmc-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: meson-mx-sdio: fix OF child-node lookup mmc: omap_hsmmc: fix wakeirq handling on removal
2018-09-13Merge tag 'pinctrl-v4.19-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: - A complicated IRQ fix for the MSM driver (see commit) - Fix the group/function check in the Ingenic driver - Deal with a possible NULL pointer dereference in the Madera driver * tag 'pinctrl-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: madera: Fix possible NULL pointer with pdata config pinctrl: ingenic: Fix group & function error checking pinctrl: msm: Really mask level interrupts to prevent latching
2018-09-13Merge branch 'for-4.19-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu Pull percpu maintainership update from Tejun Heo: "This updates the MAINTAINERS file to transfer the percpu tree maintainership to Dennis Zhou. Dennis rewrote a good portion of the percpu allocator, knows most of percpu related code, is already listed as a co-maintainer, has been reliable, and now sits right behind me. I'll keep reviewing and involved with percpu stuff and am sure that Dennis will soon make a better maintainer than I ever was" * 'for-4.19-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: MAINTAINERS: Make Dennis the percpu tree maintainer
2018-09-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel Pull hexagon fixes from Richard Kuo: "Some fixes for compile warnings" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel: hexagon: modify ffs() and fls() to return int arch/hexagon: fix kernel/dma.c build warning
2018-09-13Merge tag 's390-4.19-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Martin Schwidefsky: - One fix for the zcrypt driver to correctly handle incomplete encryption/decryption operations. - A cleanup for the aqmask/apmask parsing to avoid variable length arrays on the stack. * tag 's390-4.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/zcrypt: remove VLA usage from the AP bus s390/crypto: Fix return code checking in cbc_paes_crypt()
2018-09-13mm: get rid of vmacache_flush_all() entirelyLinus Torvalds
Jann Horn points out that the vmacache_flush_all() function is not only potentially expensive, it's buggy too. It also happens to be entirely unnecessary, because the sequence number overflow case can be avoided by simply making the sequence number be 64-bit. That doesn't even grow the data structures in question, because the other adjacent fields are already 64-bit. So simplify the whole thing by just making the sequence number overflow case go away entirely, which gets rid of all the complications and makes the code faster too. Win-win. [ Oleg Nesterov points out that the VMACACHE_FULL_FLUSHES statistics also just goes away entirely with this ] Reported-by: Jann Horn <jannh@google.com> Suggested-by: Will Deacon <will.deacon@arm.com> Acked-by: Davidlohr Bueso <dave@stgolabs.net> Cc: Oleg Nesterov <oleg@redhat.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-09-14Merge branch 'linux-4.19' of git://github.com/skeggsb/linux into drm-fixesDave Airlie
One more nouveau fix to remove some debug warnings. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Ben Skeggs <bskeggs@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/CABDvA==GF63dy8a9j611=-0x8G6FRu7uC-ZQypsLO_hqV4OAcA@mail.gmail.com
2018-09-14Merge branch 'drm-fixes-4.19' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-fixes A few fixes for 4.19: - Fix a small memory leak - SR-IOV reset fix - Fix locking in MMU-notifier error path - Updated SDMA golden settings to fix a PRT hang Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180912154735.2683-1-alexander.deucher@amd.com
2018-09-14Merge tag 'drm-intel-fixes-2018-09-11' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes This contains a regression fix for video playbacks on gen 2 hardware, a IPS timeout error suppression on Broadwell and GVT bucked with "Most critical one is to fix KVM's mm reference when we access guest memory, issue was raised by Linus [1], and another one with virtual opregion fix." [1] - https://lists.freedesktop.org/archives/intel-gvt-dev/2018-August/004130.html Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180911223229.GA30328@intel.com
2018-09-13MAINTAINERS: Make Dennis the percpu tree maintainerTejun Heo
Dennis rewrote a significant portion of the percpu allocator and has shown that he can respond in a timely and helpful manner when issues are reported against percpu allocator. Let's make Dennis the percpu tree maintainer. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Dennis Zhou <dennis@kernel.org> Cc: Christoph Lameter <cl@linux.com>
2018-09-13pstore: Fix incorrect persistent ram buffer mappingBin Yang
persistent_ram_vmap() returns the page start vaddr. persistent_ram_iomap() supports non-page-aligned mapping. persistent_ram_buffer_map() always adds offset-in-page to the vaddr returned from these two functions, which causes incorrect mapping of non-page-aligned persistent ram buffer. By default ftrace_size is 4096 and max_ftrace_cnt is nr_cpu_ids. Without this patch, the zone_sz in ramoops_init_przs() is 4096/nr_cpu_ids which might not be page aligned. If the offset-in-page > 2048, the vaddr will be in next page. If the next page is not mapped, it will cause kernel panic: [ 0.074231] BUG: unable to handle kernel paging request at ffffa19e0081b000 ... [ 0.075000] RIP: 0010:persistent_ram_new+0x1f8/0x39f ... [ 0.075000] Call Trace: [ 0.075000] ramoops_init_przs.part.10.constprop.15+0x105/0x260 [ 0.075000] ramoops_probe+0x232/0x3a0 [ 0.075000] platform_drv_probe+0x3e/0xa0 [ 0.075000] driver_probe_device+0x2cd/0x400 [ 0.075000] __driver_attach+0xe4/0x110 [ 0.075000] ? driver_probe_device+0x400/0x400 [ 0.075000] bus_for_each_dev+0x70/0xa0 [ 0.075000] driver_attach+0x1e/0x20 [ 0.075000] bus_add_driver+0x159/0x230 [ 0.075000] ? do_early_param+0x95/0x95 [ 0.075000] driver_register+0x70/0xc0 [ 0.075000] ? init_pstore_fs+0x4d/0x4d [ 0.075000] __platform_driver_register+0x36/0x40 [ 0.075000] ramoops_init+0x12f/0x131 [ 0.075000] do_one_initcall+0x4d/0x12c [ 0.075000] ? do_early_param+0x95/0x95 [ 0.075000] kernel_init_freeable+0x19b/0x222 [ 0.075000] ? rest_init+0xbb/0xbb [ 0.075000] kernel_init+0xe/0xfc [ 0.075000] ret_from_fork+0x3a/0x50 Signed-off-by: Bin Yang <bin.yang@intel.com> [kees: add comments describing the mapping differences, updated commit log] Fixes: 24c3d2f342ed ("staging: android: persistent_ram: Make it possible to use memory outside of bootmem") Cc: stable@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org>
2018-09-12Merge tag 'pci-v4.19-fixes-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: - Add Tyrel Datwyler as maintainer for PPC64 RPA hotplug (Tyrel Datwyler) - Add Gustavo Pimentel as DesignWare PCI maintainer (Joao Pinto) - Fix a Switchtec Spectre v1 vulnerability (Gustavo A. R. Silva) - Revert an unnecessary Intel 300 ACS quirk (Mika Westerberg) - Fix pciehp hot-add/powerfault detection that left indicators in wrong state (Keith Busch) - Fix pci_reset_bus() logic error (Dennis Dalessandro) - Revert IB/hfi1 PCI reset change that caused a deadlock (Dennis Dalessandro) - Allow enabling PASID on Root Complex Integrated Endpoints (Felix Kuehling) * tag 'pci-v4.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Fix enabling of PASID on RC integrated endpoints IB/hfi1,PCI: Allow bus reset while probing PCI: Fix faulty logic in pci_reset_bus() PCI: pciehp: Fix hot-add vs powerfault detection order switchtec: Fix Spectre v1 vulnerability Revert "PCI: Add ACS quirk for Intel 300 series" MAINTAINERS: Add Gustavo Pimentel as DesignWare PCI maintainer MAINTAINERS: Add entries for PPC64 RPA PCI hotplug drivers
2018-09-12Merge tag 'for-linus-4.19' of git://github.com/cminyard/linux-ipmiLinus Torvalds
Pull IPMI bugfixes from Corey Minyard: "A few fixes that came around or after the merge window, except for commit cd2315d471f4 ("ipmi: kcs_bmc: don't change device name") which is for a driver that very few people use, and those people need the change" * tag 'for-linus-4.19' of git://github.com/cminyard/linux-ipmi: ipmi: Fix NULL pointer dereference in ssif_probe ipmi: Fix I2C client removal in the SSIF driver ipmi: Move BT capabilities detection to the detect call ipmi: Rework SMI registration failure ipmi: kcs_bmc: don't change device name
2018-09-12Merge tag 'drm-fixes-2018-09-12' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm nouveau fixes from Dave Airlie: "I'm sending this separately as it's a bit larger than I generally like for one driver, but it does contain a bunch of make my nvidia laptop not die (runpm) and a bunch to make my docking station and monitor display stuff (mst) fixes. Lyude has spent a lot of time on these, and we are putting the fixes into distro kernels as well asap, as it helps a bunch of standard Lenovo laptops, so I'm fairly happy things are better than they were before these patches, but I decided to split them out just for clarification" * tag 'drm-fixes-2018-09-12' of git://anongit.freedesktop.org/drm/drm: drm/nouveau/disp/gm200-: enforce identity-mapped SOR assignment for LVDS/eDP panels drm/nouveau/disp: fix DP disable race drm/nouveau/disp: move eDP panel power handling drm/nouveau/disp: remove unused struct member drm/nouveau/TBDdevinit: don't fail when PMU/PRE_OS is missing from VBIOS drm/nouveau/mmu: don't attempt to dereference vmm without valid instance pointer drm/nouveau: fix oops in client init failure path drm/nouveau: Fix nouveau_connector_ddc_detect() drm/nouveau/drm/nouveau: Don't forget to cancel hpd_work on suspend/unload drm/nouveau/drm/nouveau: Prevent handling ACPI HPD events too early drm/nouveau: Reset MST branching unit before enabling drm/nouveau: Only write DP_MSTM_CTRL when needed drm/nouveau: Remove useless poll_enable() call in drm_load() drm/nouveau: Remove useless poll_disable() call in switcheroo_set_state() drm/nouveau: Remove useless poll_enable() call in switcheroo_set_state() drm/nouveau: Fix deadlocks in nouveau_connector_detect() drm/nouveau/drm/nouveau: Use pm_runtime_get_noresume() in connector_detect() drm/nouveau/drm/nouveau: Fix deadlock with fb_helper with async RPM requests drm/nouveau: Remove duplicate poll_enable() in pmops_runtime_suspend() drm/nouveau/drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement
2018-09-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix up several Kconfig dependencies in netfilter, from Martin Willi and Florian Westphal. 2) Memory leak in be2net driver, from Petr Oros. 3) Memory leak in E-Switch handling of mlx5 driver, from Raed Salem. 4) mlx5_attach_interface needs to check for errors, from Huy Nguyen. 5) tipc_release() needs to orphan the sock, from Cong Wang. 6) Need to program TxConfig register after TX/RX is enabled in r8169 driver, not beforehand, from Maciej S. Szmigiero. 7) Handle 64K PAGE_SIZE properly in ena driver, from Netanel Belgazal. 8) Fix crash regression in ip_do_fragment(), from Taehee Yoo. 9) syzbot can create conditions where kernel log is flooded with synflood warnings due to creation of many listening sockets, fix that. From Willem de Bruijn. 10) Fix RCU issues in rds socket layer, from Cong Wang. 11) Fix vlan matching in nfp driver, from Pieter Jansen van Vuuren. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits) nfp: flower: reject tunnel encap with ipv6 outer headers for offloading nfp: flower: fix vlan match by checking both vlan id and vlan pcp tipc: check return value of __tipc_dump_start() s390/qeth: don't dump past end of unknown HW header s390/qeth: use vzalloc for QUERY OAT buffer s390/qeth: switch on SG by default for IQD devices s390/qeth: indicate error when netdev allocation fails rds: fix two RCU related problems r8169: Clear RTL_FLAG_TASK_*_PENDING when clearing RTL_FLAG_TASK_ENABLED erspan: fix error handling for erspan tunnel erspan: return PACKET_REJECT when the appropriate tunnel is not found tcp: rate limit synflood warnings further MIPS: lantiq: dma: add dev pointer netfilter: xt_hashlimit: use s->file instead of s->private netfilter: nfnetlink_queue: Solve the NFQUEUE/conntrack clash for NF_REPEAT netfilter: cttimeout: ctnl_timeout_find_get() returns incorrect pointer to type netfilter: conntrack: timeout interface depend on CONFIG_NF_CONNTRACK_TIMEOUT netfilter: conntrack: reset tcp maxwin on re-register qmi_wwan: Support dynamic config on Quectel EP06 ethernet: renesas: convert to SPDX identifiers ...
2018-09-13drm/nouveau/devinit: fix warning when PMU/PRE_OS is missingBen Skeggs
Messed up when sending pull request and sent an outdated version of previous patch, this fixes it up to remove warnings. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-09-12Merge branch 'nfp-flower-fixes'David S. Miller
Jakub Kicinski says: ==================== nfp: flower: fixes for flower offload Two fixes for flower matching and tunnel encap. Pieter fixes VLAN matching if the entire VLAN id is masked out and match is only performed on the PCP field. Louis adds validation of tunnel flags for encap, most importantly we should not offload actions on IPv6 tunnels if it's not supported. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12nfp: flower: reject tunnel encap with ipv6 outer headers for offloadingLouis Peens
This fixes a bug where ipv6 tunnels would report that it is getting offloaded to hardware but would actually be rejected by hardware. Fixes: b27d6a95a70d ("nfp: compile flower vxlan tunnel set actions") Signed-off-by: Louis Peens <louis.peens@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12nfp: flower: fix vlan match by checking both vlan id and vlan pcpPieter Jansen van Vuuren
Previously we only checked if the vlan id field is present when trying to match a vlan tag. The vlan id and vlan pcp field should be treated independently. Fixes: 5571e8c9f241 ("nfp: extend flower matching capabilities") Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12tipc: check return value of __tipc_dump_start()Cong Wang
When __tipc_dump_start() fails with running out of memory, we have no reason to continue, especially we should avoid calling tipc_dump_done(). Fixes: 8f5c5fcf3533 ("tipc: call start and done ops directly in __tipc_nl_compat_dumpit()") Reported-and-tested-by: syzbot+3f8324abccfbf8c74a9f@syzkaller.appspotmail.com Cc: Jon Maloy <jon.maloy@ericsson.com> Cc: Ying Xue <ying.xue@windriver.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12Merge branch 'qeth-fixes'David S. Miller
Julian Wiedmann says: ==================== s390/qeth: fixes 2018-09-12 please apply the following qeth fixes for -net. Patch 1 resolves a regression in an error path, while patch 2 enables the SG support by default that was newly introduced with 4.19. Patch 3 takes care of a longstanding problem with large-order allocations, and patch 4 fixes a potential out-of-bounds access. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12s390/qeth: don't dump past end of unknown HW headerJulian Wiedmann
For inbound data with an unsupported HW header format, only dump the actual HW header. We have no idea how much payload follows it, and what it contains. Worst case, we dump past the end of the Inbound Buffer and access whatever is located next in memory. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12s390/qeth: use vzalloc for QUERY OAT bufferWenjia Zhang
qeth_query_oat_command() currently allocates the kernel buffer for the SIOC_QETH_QUERY_OAT ioctl with kzalloc. So on systems with fragmented memory, large allocations may fail (eg. the qethqoat tool by default uses 132KB). Solve this issue by using vzalloc, backing the allocation with non-contiguous memory. Signed-off-by: Wenjia Zhang <wenjia@linux.ibm.com> Reviewed-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12s390/qeth: switch on SG by default for IQD devicesJulian Wiedmann
Scatter-gather transmit brings a nice performance boost. Considering the rather large MTU sizes at play, it's also totally the Right Thing To Do. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12s390/qeth: indicate error when netdev allocation failsJulian Wiedmann
Bailing out on allocation error is nice, but we also need to tell the ccwgroup core that creating the qeth groupdev failed. Fixes: d3d1b205e89f ("s390/qeth: allocate netdevice early") Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12Merge tag 'riscv-for-linus-4.19-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux Pull RISC-V fix from Palmer Dabbelt: "This contains what I hope to be the last RISC-V patch for 4.19. It fixes a bug in our initramfs support by removing some broken and obselete code" * tag 'riscv-for-linus-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux: riscv: Do not overwrite initrd_start and initrd_end
2018-09-12Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Three fixes, all in drivers (qedi and iscsi target) so no wider impact even if the code changes are a bit extensive" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: qedi: Add the CRC size within iSCSI NVM image scsi: iscsi: target: Fix conn_ops double free scsi: iscsi: target: Set conn->sess to NULL when iscsi_login_set_conn_values fails
2018-09-12s390/zcrypt: remove VLA usage from the AP busMartin Schwidefsky
The use of variable length arrays on the stack is deprecated. git commit 3d8f60d38e249f989a7fca9c2370c31c3d5487e1 "s390/zcrypt: hex string mask improvements for apmask and aqmask." added three new VLA arrays. Remove them again. Reviewed-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-09-12rds: fix two RCU related problemsCong Wang
When a rds sock is bound, it is inserted into the bind_hash_table which is protected by RCU. But when releasing rds sock, after it is removed from this hash table, it is freed immediately without respecting RCU grace period. This could cause some use-after-free as reported by syzbot. Mark the rds sock with SOCK_RCU_FREE before inserting it into the bind_hash_table, so that it would be always freed after a RCU grace period. The other problem is in rds_find_bound(), the rds sock could be freed in between rhashtable_lookup_fast() and rds_sock_addref(), so we need to extend RCU read lock protection in rds_find_bound() to close this race condition. Reported-and-tested-by: syzbot+8967084bcac563795dc6@syzkaller.appspotmail.com Reported-by: syzbot+93a5839deb355537440f@syzkaller.appspotmail.com Cc: Sowmini Varadhan <sowmini.varadhan@oracle.com> Cc: Santosh Shilimkar <santosh.shilimkar@oracle.com> Cc: rds-devel@oss.oracle.com Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oarcle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12r8169: Clear RTL_FLAG_TASK_*_PENDING when clearing RTL_FLAG_TASK_ENABLEDKai-Heng Feng
After system suspend, sometimes the r8169 doesn't work when ethernet cable gets pluggued. This issue happens because rtl_reset_work() doesn't get called from rtl8169_runtime_resume(), after system suspend. In rtl_task(), RTL_FLAG_TASK_* only gets cleared if this condition is met: if (!netif_running(dev) || !test_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags)) ... If RTL_FLAG_TASK_ENABLED was cleared during system suspend while RTL_FLAG_TASK_RESET_PENDING was set, the next rtl_schedule_task() won't schedule task as the flag is still there. So in addition to clearing RTL_FLAG_TASK_ENABLED, also clears other flags. Cc: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-11erspan: fix error handling for erspan tunnelHaishuang Yan
When processing icmp unreachable message for erspan tunnel, tunnel id should be erspan_net_id instead of ipgre_net_id. Fixes: 84e54fe0a5ea ("gre: introduce native tunnel support for ERSPAN") Cc: William Tu <u9012063@gmail.com> Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com> Acked-by: William Tu <u9012063@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-11erspan: return PACKET_REJECT when the appropriate tunnel is not foundHaishuang Yan
If erspan tunnel hasn't been established, we'd better send icmp port unreachable message after receive erspan packets. Fixes: 84e54fe0a5ea ("gre: introduce native tunnel support for ERSPAN") Cc: William Tu <u9012063@gmail.com> Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com> Acked-by: William Tu <u9012063@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-11tcp: rate limit synflood warnings furtherWillem de Bruijn
Convert pr_info to net_info_ratelimited to limit the total number of synflood warnings. Commit 946cedccbd73 ("tcp: Change possible SYN flooding messages") rate limits synflood warnings to one per listener. Workloads that open many listener sockets can still see a high rate of log messages. Syzkaller is one frequent example. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-11MIPS: lantiq: dma: add dev pointerHauke Mehrtens
dma_zalloc_coherent() now crashes if no dev pointer is given. Add a dev pointer to the ltq_dma_channel structure and fill it in the driver using it. This fixes a bug introduced in kernel 4.19. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for you net tree: 1) Remove duplicated include at the end of UDP conntrack, from Yue Haibing. 2) Restore conntrack dependency on xt_cluster, from Martin Willi. 3) Fix splat with GSO skbs from the checksum target, from Florian Westphal. 4) Rework ct timeout support, the template strategy to attach custom timeouts is not correct since it will not work in conjunction with conntrack zones and we have a possible free after use when removing the rule due to missing refcounting. To fix these problems, do not use conntrack template at all and set custom timeout on the already valid conntrack object. This fix comes with a preparation patch to simplify timeout adjustment by initializating the first position of the timeout array for all of the existing trackers. Patchset from Florian Westphal. 5) Fix missing dependency on from IPv4 chain NAT type, from Florian. 6) Release chain reference counter from the flush path, from Taehee Yoo. 7) After flushing an iptables ruleset, conntrack hooks are unregistered and entries are left stale to be cleaned up by the timeout garbage collector. No TCP tracking is done on established flows by this time. If ruleset is reloaded, then hooks are registered again and TCP tracking is restored, which considers packets to be invalid. Clear window tracking to exercise TCP flow pickup from the middle given that history is lost for us. Again from Florian. 8) Fix crash from netlink interface with CONFIG_NF_CONNTRACK_TIMEOUT=y and CONFIG_NF_CT_NETLINK_TIMEOUT=n. 9) Broken CT target due to returning incorrect type from ctnl_timeout_find_get(). 10) Solve conntrack clash on NF_REPEAT verdicts too, from Michal Vaner. 11) Missing conversion of hashlimit sysctl interface to new API, from Cong Wang. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-11PCI: Fix enabling of PASID on RC integrated endpointsFelix Kuehling
Set the eetlp_prefix_path on PCIE_EXP_TYPE_RC_END devices to allow PASID to be enabled on them. This fixes IOMMUv2 initialization on AMD Carrizo APUs. Link: https://bugzilla.kernel.org/show_bug.cgi?id=201079 Fixes: 7ce3f912ae ("PCI: Enable PASID only if entire path supports End-End TLP prefixes") Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-09-11IB/hfi1,PCI: Allow bus reset while probingDennis Dalessandro
Calling into the new API to reset the secondary bus results in a deadlock. This occurs because the device/bus is already locked at probe time. Reverting back to the old behavior while the API is improved. Link: https://bugzilla.kernel.org/show_bug.cgi?id=200985 Fixes: c6a44ba950d1 ("PCI: Rename pci_try_reset_bus() to pci_reset_bus()") Fixes: 409888e0966e ("IB/hfi1: Use pci_try_reset_bus() for initiating PCI Secondary Bus Reset") Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Cc: Sinan Kaya <okaya@codeaurora.org>
2018-09-11PCI: Fix faulty logic in pci_reset_bus()Dennis Dalessandro
The pci_reset_bus() function calls pci_probe_reset_slot() to determine whether to call the slot or bus reset. The check has faulty logic in that it does not account for pci_probe_reset_slot() being able to return an errno. Fix by only calling the slot reset when the function returns 0. Fixes: 811c5cb37df4 ("PCI: Unify try slot and bus reset API") Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Cc: Sinan Kaya <okaya@codeaurora.org>
2018-09-11Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid Pull HID fixes from Jiri Kosina: - functional regression fix for sensor-hub driver from Hans de Goede - stop doing device reset for i2c-hid devices, which unbreaks some of them (and is in line with the specification), from Kai-Heng Feng - error handling fix for hid-core from Gustavo A. R. Silva - functional regression fix for some Elan panels from Benjamin Tissoires - a few new device ID additions and misc small fixes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: i2c-hid: Don't reset device upon system resume HID: sensor-hub: Restore fixup for Lenovo ThinkPad Helix 2 sensor hub report HID: core: fix NULL pointer dereference HID: core: fix grouping by application HID: multitouch: fix Elan panels with 2 input modes declaration HID: hid-saitek: Add device ID for RAT 7 Contagion HID: core: fix memory leak on probe HID: input: fix leaking custom input node name HID: add support for Apple Magic Keyboards HID: i2c-hid: Fix flooded incomplete report after S3 on Rayd touchscreen HID: intel-ish-hid: Enable Sunrise Point-H ish driver
2018-09-11drm/amdgpu: fix error handling in amdgpu_cs_user_fence_chunkChristian König
Slowly leaking memory one page at a time :) Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds
Pull rdma fixes from Jason Gunthorpe: "This fixes one major regression with NFS and mlx4 due to the max_sg rework in this merge window, tidies a few minor error_path regressions, and various small fixes. The HFI1 driver is broken this cycle due to a regression caused by a PCI change, it is looking like Bjorn will merge a fix for this. Also, the lingering ipoib issue I mentioned earlier still remains unfixed. Summary: - Fix possible FD type confusion crash - Fix a user trigger-able crash in cxgb4 - Fix bad handling of IOMMU resources causing user controlled leaking in bnxt - Add missing locking in ipoib to fix a rare 'stuck tx' situation - Add missing locking in cma - Add two missing missing uverbs cleanups on failure paths, regressions from this merge window - Fix a regression from this merge window that caused RDMA NFS to not work with the mlx4 driver due to the max_sg changes" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: RDMA/mlx4: Ensure that maximal send/receive SGE less than supported by HW RDMA/cma: Protect cma dev list with lock RDMA/uverbs: Fix error cleanup path of ib_uverbs_add_one() bnxt_re: Fix couple of memory leaks that could lead to IOMMU call traces IB/ipoib: Avoid a race condition between start_xmit and cm_rep_handler iw_cxgb4: only allow 1 flush on user qps IB/core: Release object lock if destroy failed RDMA/ucma: check fd type in ucma_migrate_id()
2018-09-11drm/i915/overlay: Allocate physical registers from stolenChris Wilson
Given that we are now reasonably confident in our ability to detect and reserve the stolen memory (physical memory reserved for graphics by the BIOS) for ourselves on most machines, we can put it to use. In this case, we need a page to hold the overlay registers. On an i915g running MythTv, H Buus noticed that commit 6a2c4232ece145d8b5a8f95f767bd6d0d2d2f2bb Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Tue Nov 4 04:51:40 2014 -0800 drm/i915: Make the physical object coherent with GTT introduced stuttering into his video playback. After discarding the likely suspect of it being the physical cursor updates, we were left with the use of the phys object for the overlay. And lo, if we completely avoid using the phys object (allocated just once on module load!) by switching to stolen memory, the stuttering goes away. For lack of a better explanation, claim victory and kill two birds with one stone. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107600 Fixes: 6a2c4232ece1 ("drm/i915: Make the physical object coherent with GTT") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180906190144.1272-1-chris@chris-wilson.co.uk (cherry picked from commit c8124d399224d626728e2ffb95a1d564a7c06968) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-09-11PCI: pciehp: Fix hot-add vs powerfault detection orderKeith Busch
If both hot-add and power fault were observed in a single interrupt, we handled the hot-add first, then the power fault, in this path: pciehp_ist if (events & (PDC | DLLSC)) pciehp_handle_presence_or_link_change case OFF_STATE: pciehp_enable_slot __pciehp_enable_slot board_added pciehp_power_on_slot ctrl->power_fault_detected = 0 pcie_write_cmd(ctrl, PCI_EXP_SLTCTL_PWR_ON, PCI_EXP_SLTCTL_PCC) pciehp_green_led_on(p_slot) # power LED on pciehp_set_attention_status(p_slot, 0) # attention LED off if ((events & PFD) && !ctrl->power_fault_detected) ctrl->power_fault_detected = 1 pciehp_set_attention_status(1) # attention LED on pciehp_green_led_off(slot) # power LED off This left the attention indicator on (even though the hot-add succeeded) and the power indicator off (even though the slot power was on). Fix this by checking for power faults before checking for new devices. Prior to 0e94916e6091, this was successful because everything was chained through work queues and the order was: INT_PRESENCE_ON -> INT_POWER_FAULT -> ENABLE_REQ The ENABLE_REQ cleared the power fault at the end, but now everything is handled inline with the interrupt thread, such that the work ENABLE_REQ was doing happens before power fault handling now. Fixes: 0e94916e6091 ("PCI: pciehp: Handle events synchronously") Signed-off-by: Keith Busch <keith.busch@intel.com> [bhelgaas: changelog] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Lukas Wunner <lukas@wunner.de>
2018-09-11switchtec: Fix Spectre v1 vulnerabilityGustavo A. R. Silva
p.port can is indirectly controlled by user-space, hence leading to a potential exploitation of the Spectre variant 1 vulnerability. This issue was detected with the help of Smatch: drivers/pci/switch/switchtec.c:912 ioctl_port_to_pff() warn: potential spectre issue 'pcfg->dsp_pff_inst_id' [r] Fix this by sanitizing p.port before using it to index pcfg->dsp_pff_inst_id Notice that given that speculation windows are large, the policy is to kill the speculation on the first load and not worry if it can be completed with a dependent load/store [1]. [1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2 Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Logan Gunthorpe <logang@deltatee.com> Cc: stable@vger.kernel.org
2018-09-11Revert "PCI: Add ACS quirk for Intel 300 series"Mika Westerberg
This reverts f154a718e6cc ("PCI: Add ACS quirk for Intel 300 series"). It turns out that erratum "PCH PCIe* Controller Root Port (ACSCTLR) Appear As Read Only" has been fixed in 300 series chipsets, even though the datasheet [1] claims otherwise. To make ACS work properly on 300 series root ports, revert the faulty commit. [1] https://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/300-series-c240-series-chipset-pch-spec-update.pdf Fixes: f154a718e6cc ("PCI: Add ACS quirk for Intel 300 series") Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org # v4.18+
2018-09-11MAINTAINERS: Add Gustavo Pimentel as DesignWare PCI maintainerJoao Pinto
Currently I am managing the Synopsys drivers & tools team (full-time) and so I am passing the pcie-designware maintenance to Gustavo. Signed-off-by: Joao Pinto <jpinto@synopsys.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Gustavo Pimentel <gustavo.pimentel@synopsys.com> CC: Jingoo Han <jingoohan1@gmail.com>
2018-09-11MAINTAINERS: Add entries for PPC64 RPA PCI hotplug driversTyrel Datwyler
Add myself as maintainer of the IBM RPA hotplug modules in the drivers/pci/hotplug directory. These modules provide kernel interfaces for support of Dynamic Logical Partitioning (DLPAR) of Logical and Physical IO slots, and hotplug of physical PCI slots of a PHB on RPA-compliant ppc64 platforms (pseries). Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>