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2018-10-25dma-buf: test shared slot allocation when mutex debugging is activeChristian König1-0/+5
Set shared_max to the number of shared fences right before we release the lock. This way every attempt to add a shared fence without previously reserving a slot will cause an error. Signed-off-by: Christian König <[email protected]> Reviewed-by: Huang Rui <[email protected]> Acked-by: Junwei Zhang <[email protected]> Link: https://patchwork.kernel.org/patch/10626147/
2018-10-25dma-buf: allow reserving more than one shared fence slotChristian König1-1/+2
Let's support simultaneous submissions to multiple engines. Signed-off-by: Christian König <[email protected]> Reviewed-by: Michel Dänzer <[email protected]> Reviewed-by: Junwei Zhang <[email protected]> Reviewed-by: Huang Rui <[email protected]> Link: https://patchwork.kernel.org/patch/10626149/
2018-10-25dma-buf: remove shared fence staging in reservation objectChristian König1-4/+0
No need for that any more. Just replace the list when there isn't enough room any more for the additional fence. Signed-off-by: Christian König <[email protected]> Reviewed-by: Junwei Zhang <[email protected]> Reviewed-by: Huang Rui <[email protected]> Link: https://patchwork.kernel.org/patch/10626143/
2018-10-24Merge drm/drm-next into drm-misc-nextSean Paul7-12/+65
4.19 is out, Lyude asked for a backmerge, and it's been a while. All very good reasons on their own :-) Signed-off-by: Sean Paul <[email protected]>
2018-10-10list: introduce list_bulk_move_tail helperChristian König1-0/+23
Move all entries between @first and including @last before @head. This is useful for LRU lists where a whole block of entries should be moved to the end of the list. Used as a band aid in TTM, but better placed in the common list headers. Acked-by: Dave Airlie <[email protected]> Signed-off-by: Christian König <[email protected]> Reviewed-by: Huang Rui <[email protected]> Reviewed-by: Junwei Zhang <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2018-10-04BackMerge v4.19-rc6 into drm-nextDave Airlie6-12/+42
I have some pulls based on rc6, and I prefer to have an explicit backmerge. Signed-off-by: Dave Airlie <[email protected]>
2018-10-03video/hdmi: Constify infoframe passed to the pack functionsVille Syrjälä1-2/+17
Let's make the infoframe pack functions usable with a const infoframe structure. This allows us to precompute the infoframe earlier, and still pack it later when we're no longer allowed to modify the structure. So now we end up with a _check()+_pack_only() or _pack() functions depending on whether you want to precompute the infoframes or not. The names aren't great but I was lazy and didn't want to change all the drivers. v2: Deal with exynos churn Actually export the new funcs v3: Fix various documentation fails (Hans) Cc: Thierry Reding <[email protected]> Cc: Hans Verkuil <[email protected]> Cc: [email protected] Signed-off-by: Ville Syrjälä <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Acked-by: Hans Verkuil <[email protected]>
2018-10-01video/hdmi: Constify infoframe passed to the log functionsVille Syrjälä1-1/+1
The log functions don't modify the passed in infoframe so make it const. Cc: Thierry Reding <[email protected]> Cc: Hans Verkuil <[email protected]> Cc: [email protected] Signed-off-by: Ville Syrjälä <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Acked-by: Hans Verkuil <[email protected]>
2018-10-01video/hdmi: Pass buffer size to infoframe unpack functionsVille Syrjälä1-1/+1
To make sure the infoframe unpack functions don't end up examining stack garbage or oopsing, let's pass in the size of the buffer. v2: Convert tda1997x.c as well (kbuild test robot) Cc: Thierry Reding <[email protected]> Cc: Hans Verkuil <[email protected]> Cc: [email protected] Signed-off-by: Ville Syrjälä <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Acked-by: Hans Verkuil <[email protected]>
2018-10-01video/hdmi: Constify 'buffer' to the unpack functionsVille Syrjälä1-1/+2
The unpack functions just read from the passed in buffer, so make it const. Cc: Thierry Reding <[email protected]> Cc: Hans Verkuil <[email protected]> Cc: [email protected] Signed-off-by: Ville Syrjälä <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Acked-by: Hans Verkuil <[email protected]>
2018-09-28Merge tag 'spi-fix-v4.19-rc5' of ↵Greg Kroah-Hartman1-3/+4
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Mark writes: "spi: Fixes for v4.19 Quite a few fixes for the Renesas drivers in here, plus a fix for the Tegra driver and some documentation fixes for the recently added spi-mem code. The Tegra fix is relatively large but fairly straightforward and mechanical, it runs on probe so it's been reasonably well covered in -next testing." * tag 'spi-fix-v4.19-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: spi-mem: Move the DMA-able constraint doc to the kerneldoc header spi: spi-mem: Add missing description for data.nbytes field spi: rspi: Fix interrupted DMA transfers spi: rspi: Fix invalid SPI use during system suspend spi: sh-msiof: Fix handling of write value for SISTR register spi: sh-msiof: Fix invalid SPI use during system suspend spi: gpio: Fix copy-and-paste error spi: tegra20-slink: explicitly enable/disable clock
2018-09-28Merge tag 'regulator-v4.19-rc5' of ↵Greg Kroah-Hartman2-6/+33
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Mark writes: "regulator: Fixes for 4.19 A collection of fairly minor bug fixes here, a couple of driver specific ones plus two core fixes. There's one fix for the new suspend state code which fixes some confusion with constant values that are supposed to indicate noop operation and another fixing a race condition with the creation of sysfs files on new regulators." * tag 'regulator-v4.19-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: fix crash caused by null driver data regulator: Fix 'do-nothing' value for regulators without suspend state regulator: da9063: fix DT probing with constraints regulator: bd71837: Disable voltage monitoring for LDO3/4
2018-09-27BackMerge v4.19-rc5 into drm-nextDave Airlie20-42/+95
Sean Paul requested an -rc5 backmerge from some sun4i fixes. Signed-off-by: Dave Airlie <[email protected]>
2018-09-25erge tag 'libnvdimm-fixes-4.19-rc6' of ↵Greg Kroah-Hartman1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Dan writes: "libnvdimm/dax for 4.19-rc6 * (2) fixes for the dax error handling updates that were merged for v4.19-rc1. My mails to Al have been bouncing recently, so I do not have his ack but the uaccess change is of the trivial / obviously correct variety. The address_space_operations fixes a regression. * A filesystem-dax fix to correct the zero page lookup to be compatible with non-x86 (mips and s390) architectures." * tag 'libnvdimm-fixes-4.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: device-dax: Add missing address_space_operations uaccess: Fix is_source param for check_copy_size() in copy_to_iter_mcsafe() filesystem-dax: Fix use of zero page
2018-09-25Merge gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/netGreg Kroah-Hartman2-2/+4
Dave writes: "Networking fixes: 1) Fix multiqueue handling of coalesce timer in stmmac, from Jose Abreu. 2) Fix memory corruption in NFC, from Suren Baghdasaryan. 3) Don't write reserved bits in ravb driver, from Kazuya Mizuguchi. 4) SMC bug fixes from Karsten Graul, YueHaibing, and Ursula Braun. 5) Fix TX done race in mvpp2, from Antoine Tenart. 6) ipv6 metrics leak, from Wei Wang. 7) Adjust firmware version requirements in mlxsw, from Petr Machata. 8) Fix autonegotiation on resume in r8169, from Heiner Kallweit. 9) Fixed missing entries when dumping /proc/net/if_inet6, from Jeff Barnhill. 10) Fix double free in devlink, from Dan Carpenter. 11) Fix ethtool regression from UFO feature removal, from Maciej Żenczykowski. 12) Fix drivers that have a ndo_poll_controller() that captures the cpu entirely on loaded hosts by trying to drain all rx and tx queues, from Eric Dumazet. 13) Fix memory corruption with jumbo frames in aquantia driver, from Friedemann Gerold." * gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/net: (79 commits) net: mvneta: fix the remaining Rx descriptor unmapping issues ip_tunnel: be careful when accessing the inner header mpls: allow routes on ip6gre devices net: aquantia: memory corruption on jumbo frames tun: remove ndo_poll_controller nfp: remove ndo_poll_controller bnxt: remove ndo_poll_controller bnx2x: remove ndo_poll_controller mlx5: remove ndo_poll_controller mlx4: remove ndo_poll_controller i40evf: remove ndo_poll_controller ice: remove ndo_poll_controller igb: remove ndo_poll_controller ixgb: remove ndo_poll_controller fm10k: remove ndo_poll_controller ixgbevf: remove ndo_poll_controller ixgbe: remove ndo_poll_controller bonding: use netpoll_poll_dev() helper netpoll: make ndo_poll_controller() optional rds: Fix build regression. ...
2018-09-23netpoll: make ndo_poll_controller() optionalEric Dumazet1-2/+3
As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. It seems that all networking drivers that do use NAPI for their TX completions, should not provide a ndo_poll_controller(). NAPI drivers have netpoll support already handled in core networking stack, since netpoll_poll_dev() uses poll_napi(dev) to iterate through registered NAPI contexts for a device. This patch allows netpoll_poll_dev() to process NAPI contexts even for drivers not providing ndo_poll_controller(), allowing for following patches in NAPI drivers. Also we export netpoll_poll_dev() so that it can be called by bonding/team drivers in following patches. Reported-by: Song Liu <[email protected]> Signed-off-by: Eric Dumazet <[email protected]> Tested-by: Song Liu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2018-09-23Merge tag 'mfd-fixes-4.19' of ↵Greg Kroah-Hartman1-7/+9
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Lee writes: "MFD fixes for v4.19 - Fix Dialog DA9063 regulator constraints issue causing failure in probe - Fix OMAP Device Tree compatible strings to match DT" * tag 'mfd-fixes-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: mfd: omap-usb-host: Fix dts probe of children mfd: da9063: Fix DT probing with constraints
2018-09-23Merge tag 'for-linus-20180922' of git://git.kernel.dk/linux-blockGreg Kroah-Hartman1-1/+4
Jens writes: "Just a single fix in this pull request, fixing a regression in /proc/diskstats caused by the unification of timestamps." * tag 'for-linus-20180922' of git://git.kernel.dk/linux-block: block: use nanosecond resolution for iostat
2018-09-21block: use nanosecond resolution for iostatOmar Sandoval1-1/+4
Klaus Kusche reported that the I/O busy time in /proc/diskstats was not updating properly on 4.18. This is because we started using ktime to track elapsed time, and we convert nanoseconds to jiffies when we update the partition counter. However, this gets rounded down, so any I/Os that take less than a jiffy are not accounted for. Previously in this case, the value of jiffies would sometimes increment while we were doing I/O, so at least some I/Os were accounted for. Let's convert the stats to use nanoseconds internally. We still report milliseconds as before, now more accurately than ever. The value is still truncated to 32 bits for backwards compatibility. Fixes: 522a777566f5 ("block: consolidate struct request timestamp fields") Cc: [email protected] Reported-by: Klaus Kusche <[email protected]> Signed-off-by: Omar Sandoval <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2018-09-21Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmGreg Kroah-Hartman1-2/+0
Paolo writes: "It's mostly small bugfixes and cleanups, mostly around x86 nested virtualization. One important change, not related to nested virtualization, is that the ability for the guest kernel to trap CPUID instructions (in Linux that's the ARCH_SET_CPUID arch_prctl) is now masked by default. This is because the feature is detected through an MSR; a very bad idea that Intel seems to like more and more. Some applications choke if the other fields of that MSR are not initialized as on real hardware, hence we have to disable the whole MSR by default, as was the case before Linux 4.12." * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (23 commits) KVM: nVMX: Fix bad cleanup on error of get/set nested state IOCTLs kvm: selftests: Add platform_info_test KVM: x86: Control guest reads of MSR_PLATFORM_INFO KVM: x86: Turbo bits in MSR_PLATFORM_INFO nVMX x86: Check VPID value on vmentry of L2 guests nVMX x86: check posted-interrupt descriptor addresss on vmentry of L2 KVM: nVMX: Wake blocked vCPU in guest-mode if pending interrupt in virtual APICv KVM: VMX: check nested state and CR4.VMXE against SMM kvm: x86: make kvm_{load|put}_guest_fpu() static x86/hyper-v: rename ipi_arg_{ex,non_ex} structures KVM: VMX: use preemption timer to force immediate VMExit KVM: VMX: modify preemption timer bit only when arming timer KVM: VMX: immediately mark preemption timer expired only for zero value KVM: SVM: Switch to bitmap_zalloc() KVM/MMU: Fix comment in walk_shadow_page_lockless_end() kvm: selftests: use -pthread instead of -lpthread KVM: x86: don't reset root in kvm_mmu_setup() kvm: mmu: Don't read PDPTEs when paging is not enabled x86/kvm/lapic: always disable MMIO interface in x2APIC mode KVM: s390: Make huge pages unavailable in ucontrol VMs ...
2018-09-20spi: spi-mem: Move the DMA-able constraint doc to the kerneldoc headerBoris Brezillon1-3/+2
We'd better have that documented in the kerneldoc header, so that it's exposed to the doc generated by Sphinx. Signed-off-by: Boris Brezillon <[email protected]> Signed-off-by: Mark Brown <[email protected]>
2018-09-20spi: spi-mem: Add missing description for data.nbytes fieldBoris Brezillon1-0/+2
Add a description for spi_mem_op.data.nbytes to the kerneldoc header. Fixes: c36ff266dc82 ("spi: Extend the core to ease integration of SPI memory controllers") Signed-off-by: Boris Brezillon <[email protected]> Signed-off-by: Mark Brown <[email protected]>
2018-09-20Compiler Attributes: naked can be sharedMiguel Ojeda2-8/+8
The naked attribute is supported by at least gcc >= 4.6 (for ARM, which is the only current user), gcc >= 8 (for x86), clang >= 3.1 and icc >= 13. See https://godbolt.org/z/350Dyc Therefore, move it out of compiler-gcc.h so that the definition is shared by all compilers. This also fixes Clang support for ARM32 --- 815f0ddb346c ("include/linux/compiler*.h: make compiler-*.h mutually exclusive"). Fixes: 815f0ddb346c ("include/linux/compiler*.h: make compiler-*.h mutually exclusive") Cc: Rasmus Villemoes <[email protected]> Cc: Eli Friedman <[email protected]> Cc: Christopher Li <[email protected]> Cc: Kees Cook <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Joe Perches <[email protected]> Cc: Dominique Martinet <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: [email protected] Suggested-by: Arnd Bergmann <[email protected]> Tested-by: Stefan Agner <[email protected]> Reviewed-by: Stefan Agner <[email protected]> Reviewed-by: Luc Van Oostenryck <[email protected]> Reviewed-by: Nick Desaulniers <[email protected]> Signed-off-by: Miguel Ojeda <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2018-09-20Compiler Attributes: naked was fixed in gcc 4.6Miguel Ojeda1-7/+1
Commit 9c695203a7dd ("compiler-gcc.h: gcc-4.5 needs noclone and noinline on __naked functions") added noinline and noclone as a workaround for a gcc 4.5 bug, which was resolved in 4.6.0. Since now the minimum gcc supported version is 4.6, we can clean it up. See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44290 and https://godbolt.org/z/h6NMIL Fixes: 815f0ddb346c ("include/linux/compiler*.h: make compiler-*.h mutually exclusive") Cc: Rasmus Villemoes <[email protected]> Cc: Eli Friedman <[email protected]> Cc: Christopher Li <[email protected]> Cc: Kees Cook <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Joe Perches <[email protected]> Cc: Dominique Martinet <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: [email protected] Tested-by: Stefan Agner <[email protected]> Reviewed-by: Stefan Agner <[email protected]> Reviewed-by: Luc Van Oostenryck <[email protected]> Reviewed-by: Nick Desaulniers <[email protected]> Signed-off-by: Miguel Ojeda <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2018-09-20Merge tag 'sound-4.19-rc5' of ↵Greg Kroah-Hartman1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Takashi writes: "sound fixes for 4.19-rc5 here comes a collection of various fixes, mostly for stable-tree or regression fixes. Two relatively high LOCs are about the (rather simple) conversion of uapi integer types in topology API, and a regression fix about HDMI hotplug notification on AMD HD-audio. The rest are all small individual fixes like ASoC Intel Skylake race condition, minor uninitialized page leak in emu10k1 ioctl, Firewire audio error paths, and so on." * tag 'sound-4.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (33 commits) ALSA: fireworks: fix memory leak of response buffer at error path ALSA: oxfw: fix memory leak of discovered stream formats at error path ALSA: oxfw: fix memory leak for model-dependent data at error path ALSA: bebob: fix memory leak for M-Audio FW1814 and ProjectMix I/O at error path ALSA: hda - Enable runtime PM only for discrete GPU ALSA: oxfw: fix memory leak of private data ALSA: firewire-tascam: fix memory leak of private data ALSA: firewire-digi00x: fix memory leak of private data sound: don't call skl_init_chip() to reset intel skl soc sound: enable interrupt after dma buffer initialization Revert "ASoC: Intel: Skylake: Acquire irq after RIRB allocation" ALSA: emu10k1: fix possible info leak to userspace on SNDRV_EMU10K1_IOCTL_INFO ASoC: cs4265: fix MMTLR Data switch control ASoC: AMD: Ensure reset bit is cleared before configuring ALSA: fireface: fix memory leak in ff400_switch_fetching_mode() ALSA: bebob: use address returned by kmalloc() instead of kernel stack for streaming DMA mapping ASoC: rsnd: don't fallback to PIO mode when -EPROBE_DEFER ASoC: rsnd: adg: care clock-frequency size ASoC: uniphier: change status to orphan ASoC: rsnd: fixup not to call clk_get/set under non-atomic ...
2018-09-20kvm: x86: make kvm_{load|put}_guest_fpu() staticSebastian Andrzej Siewior1-2/+0
The functions kvm_load_guest_fpu() kvm_put_guest_fpu() are only used locally, make them static. This requires also that both functions are moved because they are used before their implementation. Those functions were exported (via EXPORT_SYMBOL) before commit e5bb40251a920 ("KVM: Drop kvm_{load,put}_guest_fpu() exports"). Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2018-09-18net: stmmac: Rework coalesce timer and fix multi-queue racesJose Abreu1-0/+1
This follows David Miller advice and tries to fix coalesce timer in multi-queue scenarios. We are now using per-queue coalesce values and per-queue TX timer. Coalesce timer default values was changed to 1ms and the coalesce frames to 25. Tested in B2B setup between XGMAC2 and GMAC5. Signed-off-by: Jose Abreu <[email protected]> Fixes: ce736788e8a ("net: stmmac: adding multiple buffers for TX") Cc: Florian Fainelli <[email protected]> Cc: Neil Armstrong <[email protected]> Cc: Jerome Brunet <[email protected]> Cc: Martin Blumenstingl <[email protected]> Cc: David S. Miller <[email protected]> Cc: Joao Pinto <[email protected]> Cc: Giuseppe Cavallaro <[email protected]> Cc: Alexandre Torgue <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2018-09-14Merge tag 'usb-4.19-rc4' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are a number of small USB driver fixes for -rc4. The usual suspects of gadget, xhci, and dwc2/3 are in here, along with some reverts of reported problem changes, and a number of build documentation warning fixes. Full details are in the shortlog. All of these have been in linux-next with no reported issues" * tag 'usb-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (28 commits) Revert "cdc-acm: implement put_char() and flush_chars()" usb: Change usb_of_get_companion_dev() place to usb/common usb: xhci: fix interrupt transfer error happened on MTK platforms usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt() usb: misc: uss720: Fix two sleep-in-atomic-context bugs usb: host: u132-hcd: Fix a sleep-in-atomic-context bug in u132_get_frame() usb: Avoid use-after-free by flushing endpoints early in usb_set_interface() linux/mod_devicetable.h: fix kernel-doc missing notation for typec_device_id usb/typec: fix kernel-doc notation warning for typec_match_altmode usb: Don't die twice if PCI xhci host is not responding in resume usb: mtu3: fix error of xhci port id when enable U3 dual role usb: uas: add support for more quirk flags USB: Add quirk to support DJI CineSSD usb: typec: fix kernel-doc parameter warning usb/dwc3/gadget: fix kernel-doc parameter warning USB: yurex: Check for truncation in yurex_read() USB: yurex: Fix buffer over-read in yurex_write() usb: host: xhci-plat: Iterate over parent nodes for finding quirks xhci: Fix use after free for URB cancellation on a reallocated endpoint USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB controller ...
2018-09-14drm: shmobile: convert to SPDX identifiersKuninori Morimoto1-5/+1
Signed-off-by: Kuninori Morimoto <[email protected]> Acked-by: Laurent Pinchart <[email protected]> Reviewed-by: Simon Horman <[email protected]> Signed-off-by: Laurent Pinchart <[email protected]>
2018-09-13Merge tag 'ovl-fixes-4.19-rc4' of ↵Linus Torvalds1-0/+5
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs Pull overlayfs fixes from Miklos Szeredi: "This fixes a regression in the recent file stacking update, reported and fixed by Amir Goldstein. The fix is fairly trivial, but involves adding a fadvise() f_op and the associated churn in the vfs. As discussed on -fsdevel, there are other possible uses for this method, than allowing proper stacking for overlays. And there's one other fix for a syzkaller detected oops" * tag 'ovl-fixes-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: fix oopses in ovl_fill_super() failure paths ovl: add ovl_fadvise() vfs: implement readahead(2) using POSIX_FADV_WILLNEED vfs: add the fadvise() file operation Documentation/filesystems: update documentation of file_operations ovl: fix GPF in swapfile_activate of file from overlayfs over xfs ovl: respect FIEMAP_FLAG_SYNC flag
2018-09-13Merge tag 'for-linus-20180913' of git://git.kernel.dk/linux-blockLinus Torvalds1-1/+1
Pull block fixes from Jens Axboe: "Three fixes that should go into this series. This contains: - Increase number of policies supported by blk-cgroup. With blk-iolatency, we now have four in kernel, but we had a hard limit of three... - Fix regression in null_blk, where the zoned supported broke queue_mode=0 (bio based). - NVMe pull request, with a single fix for an issue in the rdma code" * tag 'for-linus-20180913' of git://git.kernel.dk/linux-block: null_blk: fix zoned support for non-rq based operation blk-cgroup: increase number of supported policies nvmet-rdma: fix possible bogus dereference under heavy load
2018-09-13mm: get rid of vmacache_flush_all() entirelyLinus Torvalds4-8/+2
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 <[email protected]> Suggested-by: Will Deacon <[email protected]> Acked-by: Davidlohr Bueso <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: [email protected] Signed-off-by: Linus Torvalds <[email protected]>
2018-09-14Merge tag 'drm-misc-next-2018-09-13' of ↵Dave Airlie3-11/+6
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 4.20: UAPI Changes: - Add host endian variants for the most common formats (Gerd) - Fail ADDFB2 for big-endian drivers that don't advertise BE quirk (Gerd) - clear smem_start in fbdev for drm drivers to avoid leaking fb addr (Daniel) Cross-subsystem Changes: Core Changes: - fix drm_mode_addfb() on big endian machines (Gerd) - add timeline point to syncobj find+replace (Chunming) - more drmP.h removal effort (Daniel) - split uapi portions of drm_atomic.c into drm_atomic_uapi.c (Daniel) Driver Changes: - bochs: Convert open-coded portions to use helpers (Peter) - vkms: Add cursor support (Haneen) - udmabuf: Lots of fixups (mostly cosmetic afaict) (Gerd) - qxl: Convert to use fbdev helper (Peter) Cc: Gerd Hoffmann <[email protected]> Cc: Chunming Zhou <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Peter Wu <[email protected]> Cc: Haneen Mohammed <[email protected]> Signed-off-by: Dave Airlie <[email protected]> From: Sean Paul <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/20180913130254.GA156437@art_vandelay
2018-09-13ALSA: hda - Enable runtime PM only for discrete GPUTakashi Iwai1-0/+3
The recent change of vga_switcheroo allowed the runtime PM for HD-audio on AMD GPUs, but this also resulted in a regression. When the HD-audio controller driver gets runtime-suspended, HD-audio link is turned off, and the hotplug notification is ignored. This leads to the inconsistent audio state (the connection isn't notified and ELD is ignored). The best fix would be to implement the proper ELD notification via the audio component, but it's still not ready. As a quick workaround, this patch adds the check of runtime_idle and allows the runtime suspend only when the vga_switcheroo is bound with discrete GPU. That is, a system with a single GPU and APU would be again without runtime PM to keep the HD-audio link for the hotplug notification and ELD read out. Also, the codec->auto_runtime_pm flag is set only for the discrete GPU at the time GPU gets bound via vga_switcheroo (i.e. only dGPU is forcibly runtime-PM enabled), so that APU can still get the ELD notification. For identifying which GPU is bound, a new vga_switcheroo client callback, gpu_bound, is implemented. The vga_switcheroo simply calls this when GPU is bound, and tells whether it's dGPU or APU. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200945 Fixes: 07f4f97d7b4b ("vga_switcheroo: Use device link for HDA controller") Reported-by: Jian-Hong Pan <[email protected]> Tested-by: Jian-Hong Pan <[email protected]> Acked-by: Lukas Wunner <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2018-09-12Merge tag 'pci-v4.19-fixes-1' of ↵Linus Torvalds1-0/+3
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 git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds1-4/+4
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 ...
2018-09-12uaccess: Fix is_source param for check_copy_size() in copy_to_iter_mcsafe()Dave Jiang1-1/+1
copy_to_iter_mcsafe() is passing in the is_source parameter as "false" to check_copy_size(). This is different than what copy_to_iter() does. Also, the addr parameter passed to check_copy_size() is the source so therefore we should be passing in "true" instead. Fixes: 8780356ef630 ("x86/asm/memcpy_mcsafe: Define copy_to_iter_mcsafe()") Cc: <[email protected]> Reported-by: Fan Du <[email protected]> Signed-off-by: Dave Jiang <[email protected]> Reviewed-by: Vishal Verma <[email protected]> Reported-by: Wenwei Tao <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2018-09-11IB/hfi1,PCI: Allow bus reset while probingDennis Dalessandro1-0/+3
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 <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Michael J. Ruhl <[email protected]> Cc: Sinan Kaya <[email protected]>
2018-09-11Merge branch 'for-linus' of ↵Linus Torvalds1-0/+1
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
2018-09-11blk-cgroup: increase number of supported policiesJens Axboe1-1/+1
After merging the iolatency policy, we potentially now have 4 policies being registered, but only support 3. This causes one of them to fail loading. Takashi reports that BFQ no longer works for him, because it fails to load due to policy registration failure. Bump to 5 policies, and also add a warning for when we have exceeded the global amount. If we have to touch this again, we should switch to a dynamic scheme instead. Reported-by: Takashi Iwai <[email protected]> Reviewed-by: Jeff Moyer <[email protected]> Tested-by: Takashi Iwai <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2018-09-11fbdev: Add FBINFO_HIDE_SMEM_START flagDaniel Vetter1-0/+7
DRM drivers really, really, really don't want random userspace to share buffer behind it's back, bypassing the dma-buf buffer sharing machanism. For that reason we've ruthlessly rejected any IOCTL exposing the physical address of any graphics buffer. Unfortunately fbdev comes with that built-in. We could just set smem_start to 0, but that means we'd have to hand-roll our own fb_mmap implementation. For good reasons many drivers do that, but smem_start/length is still super convenient. Hence instead just stop the leak in the ioctl, to keep fb mmap working as-is. A second patch will set this flag for all drm drivers. Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Cc: Bartlomiej Zolnierkiewicz <[email protected]> Cc: Kees Cook <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: [email protected] Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-09-11vt: Remove vc_panic_force_writeDaniel Vetter2-8/+0
It was only used by the panic support in fbcon, which is now gone. Remove this now dead code too. Acked-by: Greg Kroah-Hartman <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Kees Cook <[email protected]> Cc: Joe Perches <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Meng Xu <[email protected]> Cc: Nicolas Pitre <[email protected]> Cc: Thomas Meyer <[email protected]> Cc: Mike Frysinger <[email protected]> Cc: Bartlomiej Zolnierkiewicz <[email protected]> Cc: Hans de Goede <[email protected]> Cc: Thierry Reding <[email protected]> Cc: David Lechner <[email protected]> Cc: Philippe Ombredanne <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Kate Stewart <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-09-11fbdev: Drop FBINFO_CAN_FORCE_OUTPUT flagDaniel Vetter1-4/+0
This was only added for the drm's fbdev emulation support, so that it would try harder to show the Oops. Unfortunately this never really worked reliably, and in practice ended up pushing the real Oops off the screen due to plentyfull locking, sleep-while-atomic and other issues. So we removed all that support from the fbdev emulation a while back. Aside: We've also removed the kgdb support, for similar reasons. Since it's such a small patch I figured I don't split this up into the usual 3-phase removal. Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Cc: Ben Skeggs <[email protected]> Cc: Bartlomiej Zolnierkiewicz <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Hans de Goede <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Alexander Kapshuk <[email protected]> Cc: Kees Cook <[email protected]> Cc: Thierry Reding <[email protected]> Cc: David Lechner <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-09-10mfd: da9063: Fix DT probing with constraintsPhilipp Zabel1-7/+9
Commit 1c892e38ce59 ("regulator: da9063: Handle less LDOs on DA9063L") reordered the da9063_regulator_info[] array, but not the DA9063_ID_* regulator ids and not the da9063_matches[] array, because ids are used as indices in the array initializer. This mismatch between regulator id and da9063_regulator_info[] array index causes the driver probe to fail because constraints from DT are not applied to the correct regulator: da9063 0-0058: Device detected (chip-ID: 0x61, var-ID: 0x50) DA9063_BMEM: Bringing 900000uV into 3300000-3300000uV DA9063_LDO9: Bringing 3300000uV into 2500000-2500000uV DA9063_LDO1: Bringing 900000uV into 3300000-3300000uV DA9063_LDO1: failed to apply 3300000-3300000uV constraint(-22) This patch reorders the DA9063_ID_* as apparently intended, and with them the entries in the da90630_matches[] array. Fixes: 1c892e38ce59 ("regulator: da9063: Handle less LDOs on DA9063L") Signed-off-by: Philipp Zabel <[email protected]> Reviewed-by: Marek Vasut <[email protected]> Reviewed-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Lee Jones <[email protected]>
2018-09-09Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timekeeping fixes from Thomas Gleixner: "Two fixes for timekeeping: - Revert to the previous kthread based update, which is unfortunately required due to lock ordering issues. The removal caused boot failures on old Core2 machines. Add a proper comment why the thread needs to stay to prevent accidental removal in the future. - Fix a silly typo in a function declaration" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource: Revert "Remove kthread" timekeeping: Fix declaration of read_persistent_wall_and_boot_offset()
2018-09-07Merge tag 'drm-misc-next-2018-09-05' of ↵Dave Airlie1-0/+2
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 4.20: UAPI Changes: - Add userspace dma-buf device to turn memfd regions into dma-bufs (Gerd) - Add per-plane blend mode property (Lowry) - Change in drm_fourcc.h is documentation only (Brian) Cross-subsystem Changes: - None Core Changes: - Remove user logspam and useless lock in vma_offset_mgr destroy (Chris) - Add get/verify_crc_source for improved crc source selection (Mahesh) - Add __drm_atomic_helper_plane_reset to reduce copypasta (Alexandru) Driver Changes: - various: Replance ref/unref calls with drm_dev_get/put (Thomas) - bridge: Add driver for TI SN65DSI86 chip (Sandeep) - rockchip: Add PX30 support (Sandy) - sun4i: Add support for R40 TCON (Jernej) - vkms: Continued building out vkms, added gem support (Haneen)Driver Changes: - various: fbdev: Wrap remove_conflicting_framebuffers with resource_len accessors to remove a bunch of cargo-cult (Michał) - rockchip: Add rgb output iface support + fixes (Sandy/Heiko) - nouveau/amdgpu: Add cec-over-aux support (Hans) - sun4i: Add support for Allwinner A64 (Jagan) Cc: Gerd Hoffmann <[email protected]> Cc: Chris Wilson <[email protected]> Cc: Michał Mirosław <[email protected]> Cc: Heiko Stuebner <[email protected]> Cc: Sandy Huang <[email protected]> Cc: Hans Verkuil <[email protected]> Cc: Jagan Teki <[email protected]> Signed-off-by: Dave Airlie <[email protected]> From: Sean Paul <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/20180905202210.GA95199@art_vandelay
2018-09-06Merge tag 'for-linus-20180906' of git://git.kernel.dk/linux-blockLinus Torvalds1-1/+44
Pull block fixes from Jens Axboe: "Small collection of fixes that should go into this release. This contains: - Small series that fixes a race between blkcg teardown and writeback (Dennis Zhou) - Fix disallowing invalid block size settings from the nbd ioctl (me) - BFQ fix for a use-after-free on last release of a bfqg (Konstantin Khlebnikov) - Fix for the "don't warn for flush" fix (Mikulas)" * tag 'for-linus-20180906' of git://git.kernel.dk/linux-block: block: bfq: swap puts in bfqg_and_blkg_put block: don't warn when doing fsync on read-only devices nbd: don't allow invalid blocksize settings blkcg: use tryget logic when associating a blkg with a bio blkcg: delay blkg destruction until after writeback has finished Revert "blk-throttle: fix race between blkcg_bio_issue_check() and cgroup_rmdir()"
2018-09-06Merge tag 'trace-v4.19-rc2' of ↵Linus Torvalds1-2/+6
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "This fixes two annoying bugs: - The first one is a side effect caused by using SRCU for rcuidle tracepoints. It seems that the perf was depending on the rcuidle tracepoints to make RCU watch when it wasn't. The real fix will be to have perf use SRCU instead of depending on RCU watching, but that can't be done until SRCU is safe to use in NMI context (Paul's working on that). - The second bug fix is for a bug that's been periodically making my tests fail randomly for some time. I haven't had time to track it down, but finally have. It has to do with stressing NMIs (via perf) while enabling or disabling ftrace function handling with lockdep enabled. If an interrupt happens and just as it returns, it sets lockdep back to "interrupts enabled" but before it returns an NMI is triggered, and if this happens while printk_nmi_enter has a breakpoint attached to it (because ftrace is converting it to or from nop to call fentry), the breakpoint trap also calls into lockdep, and since returning from the NMI to a interrupt handler, interrupts were disabled when the NMI went off, lockdep keeps its state as interrupts disabled when it returns back from the interrupt handler where interrupts are enabled. This causes lockdep_assert_irqs_enabled() to trigger a false positive" * tag 'trace-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: printk/tracing: Do not trace printk_nmi_enter() tracing: Add back in rcu_irq_enter/exit_irqson() for rcuidle tracepoints
2018-09-05net/mlx5: Use u16 for Work Queue buffer strides offsetTariq Toukan1-2/+2
Minimal stride size is 16. Hence, the number of strides in a fragment (of PAGE_SIZE) is <= PAGE_SIZE / 16 <= 4K. u16 is sufficient to represent this. Fixes: d7037ad73daa ("net/mlx5: Fix QP fragmented buffer allocation") Signed-off-by: Tariq Toukan <[email protected]> Reviewed-by: Eran Ben Elisha <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
2018-09-05net/mlx5: Use u16 for Work Queue buffer fragment sizeTariq Toukan1-1/+1
Minimal stride size is 16. Hence, the number of strides in a fragment (of PAGE_SIZE) is <= PAGE_SIZE / 16 <= 4K. u16 is sufficient to represent this. Fixes: 388ca8be0037 ("IB/mlx5: Implement fragmented completion queue (CQ)") Signed-off-by: Tariq Toukan <[email protected]> Reviewed-by: Eran Ben Elisha <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
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