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2018-11-27media: mediactl docs: Fix licensing messageMauro Carvalho Chehab7-7/+175
Right now, it mentions two SPDX headers that don't exist inside the Kernel: GFDL-1.1-or-later And an exception: no-invariant-sections While it would be trivial to add the first one, there's no way, currently, to distinguish, with SPDX, between a free and a non-free document under GFDL. Free documents with GFDL should not have invariant sections. There's an open issue at SPDX tree waiting for it to be solved. While we don't have this issue closed, let's just replace by a free-text license, and add a TODO note to remind us to revisit it later. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-26Merge tag 'phy-for-4.20-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linusGreg Kroah-Hartman1-8/+23
Kishon writes: phy: for 4.20-rc *) Fix updating HSTX_TRIM tuning parameter in qcom-qusb2 PHY driver *) Fix inconsistencies between dt-bindings and the driver *) Add "Depend on HAS_IOMEM" uniphier-pcie to avoid randconfig errors Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> * tag 'phy-for-4.20-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy: phy: qcom-qusb2: Fix HSTX_TRIM tuning with fused value for SDM845 phy: qcom-qusb2: Use HSTX_TRIM fused value as is dt-bindings: phy-qcom-qmp: Fix several mistakes from prior commits phy: uniphier-pcie: Depend on HAS_IOMEM
2018-11-24Merge tag 'xarray-4.20-rc4' of git://git.infradead.org/users/willy/linux-daxLinus Torvalds1-11/+41
Pull XArray updates from Matthew Wilcox: "We found some bugs in the DAX conversion to XArray (and one bug which predated the XArray conversion). There were a couple of bugs in some of the higher-level functions, which aren't actually being called in today's kernel, but surfaced as a result of converting existing radix tree & IDR users over to the XArray. Some of the other changes to how the higher-level APIs work were also motivated by converting various users; again, they're not in use in today's kernel, so changing them has a low probability of introducing a bug. Dan can still trigger a bug in the DAX code with hot-offline/online, and we're working on tracking that down" * tag 'xarray-4.20-rc4' of git://git.infradead.org/users/willy/linux-dax: XArray tests: Add missing locking dax: Avoid losing wakeup in dax_lock_mapping_entry dax: Fix huge page faults dax: Fix dax_unlock_mapping_entry for PMD pages dax: Reinstate RCU protection of inode dax: Make sure the unlocking entry isn't locked dax: Remove optimisation from dax_lock_mapping_entry XArray tests: Correct some 64-bit assumptions XArray: Correct xa_store_range XArray: Fix Documentation XArray: Handle NULL pointers differently for allocation XArray: Unify xa_store and __xa_store XArray: Add xa_store_bh() and xa_store_irq() XArray: Turn xa_erase into an exported function XArray: Unify xa_cmpxchg and __xa_cmpxchg XArray: Regularise xa_reserve nilfs2: Use xa_erase_irq XArray: Export __xa_foo to non-GPL modules XArray: Fix xa_for_each with a single element at 0
2018-11-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller5-12/+20
2018-11-24Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hidLinus Torvalds1-10/+1
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 git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds1-1/+1
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 ...
2018-11-23dt-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>
2018-11-22media: Revert "media: dt-bindings: Document the Rockchip VPU bindings"Ezequiel Garcia1-29/+0
This reverts commit e4183d3256e3cd668e899d06af66da5aac3a51af. The commit was picked by mistake, as the Rockchip VPU driver is not ready for inclusion yet, and it's still under discussion. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-22Merge tag 'char-misc-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds1-10/+11
Pull char/misc driver fixes from Greg KH: "Here are some small char/misc driver fixes for issues that have been reported. Nothing major, highlights include: - gnss sync write fixes - uio oops fix - nvmem fixes - other minor fixes and some documentation/maintainers updates Full details are in the shortlog. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: Documentation/security-bugs: Postpone fix publication in exceptional cases MAINTAINERS: Add Sasha as a stable branch maintainer gnss: sirf: fix synchronous write timeout gnss: serial: fix synchronous write timeout uio: Fix an Oops on load test_firmware: fix error return getting clobbered nvmem: core: fix regression in of_nvmem_cell_get() misc: atmel-ssc: Fix section annotation on atmel_ssc_get_driver_data drivers/misc/sgi-gru: fix Spectre v1 vulnerability Drivers: hv: kvp: Fix the recent regression caused by incorrect clean-up slimbus: ngd: remove unnecessary check
2018-11-22Merge tag 'usb-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds1-0/+2
Pull USB fixes from Greg KH: "Here are a number of small USB fixes for 4.20-rc4. There's the usual xhci and dwc2/3 fixes as well as a few minor other issues resolved for problems that have been reported. Full details are in the shortlog. All have been in linux-next for a while with no reported issues" * tag 'usb-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: cdc-acm: add entry for Hiro (Conexant) modem usb: xhci: Prevent bus suspend if a port connect change or polling state is detected usb: core: Fix hub port connection events lost usb: dwc3: gadget: fix ISOC TRB type on unaligned transfers Revert "usb: gadget: ffs: Fix BUG when userland exits with submitted AIO transfers" usb: dwc2: pci: Fix an error code in probe usb: dwc3: Fix NULL pointer exception in dwc3_pci_remove() xhci: Add quirk to workaround the errata seen on Cavium Thunder-X2 Soc usb: xhci: fix timeout for transition from RExit to U0 usb: xhci: fix uninitialized completion when USB3 port got wrong status xhci: Add check for invalid byte size error when UAS devices are connected. xhci: handle port status events for removed USB3 hcd xhci: Fix leaking USB3 shared_hcd at xhci removal USB: misc: appledisplay: add 20" Apple Cinema Display USB: quirks: Add no-lpm quirk for Raydium touchscreens usb: quirks: Add delay-init quirk for Corsair K70 LUX RGB USB: Wait for extra delay time after USB_PORT_FEAT_RESET for quirky hub usb: dwc3: gadget: Properly check last unaligned/zero chain TRB usb: dwc3: core: Clean up ULPI device
2018-11-22Revert "Input: Add the `REL_WHEEL_HI_RES` event code"Benjamin Tissoires1-10/+1
This reverts commit aaf9978c3c0291ef3beaa97610bc9c3084656a85. Quoting Peter: There is a HID feature report called "Resolution Multiplier" Described in the "Enhanced Wheel Support in Windows" doc and the "USB HID Usage Tables" page 30. http://download.microsoft.com/download/b/d/1/bd1f7ef4-7d72-419e-bc5c-9f79ad7bb66e/wheel.docx https://www.usb.org/sites/default/files/documents/hut1_12v2.pdf This was new for Windows Vista, so we're only a decade behind here. I only accidentally found this a few days ago while debugging a stuck button on a Microsoft mouse. The docs above describe it like this: a wheel control by default sends value 1 per notch. If the resolution multiplier is active, the wheel is expected to send a value of $multiplier per notch (e.g. MS Sculpt mouse) or just send events more often, i.e. for less physical motion (e.g. MS Comfort mouse). For the latter, you need the right HW of course. The Sculpt mouse has tactile wheel clicks, so nothing really changes. The Comfort mouse has continuous motion with no tactile clicks. Similar to the free-wheeling Logitech mice but without any inertia. Note that the doc also says that Vista and onwards *always* enable this feature where available. An example HID definition looks like this: Usage Page Generic Desktop (0x01) Usage Resolution Multiplier (0x48) Logical Minimum 0 Logical Maximum 1 Physical Minimum 1 Physical Maximum 16 Report Size 2 # in bits Report Count 1 Feature (Data, Var, Abs) So the actual bits have values 0 or 1 and that reflects real values 1 or 16. We've only seen single-bits so far, so there's low-res and hi-res, but nothing in between. The multiplier is available for HID usages "Wheel" and "AC Pan" (horiz wheel). Microsoft suggests that > Vendors should ship their devices with smooth scrolling disabled and allow > Windows to enable it. This ensures that the device works like a regular HID > device on legacy operating systems that do not support smooth scrolling. (see the wheel doc linked above) The mice that we tested so far do reset on unplug. Device Support looks to be all (?) Microsoft mice but nothing else Not supported: - Logitech G500s, G303 - Roccat Kone XTD - all the cheap Lenovo, HP, Dell, Logitech USB mice that come with a workstation that I could find don't have it. - Etekcity something something - Razer Imperator Supported: - Microsoft Comfort Optical Mouse 3000 - yes, physical: 1:4 - Microsoft Sculpt Ergonomic Mouse - yes, physical: 1:12 - Microsoft Surface mouse - yes, physical: 1:4 So again, I think this is really just available on Microsoft mice, but probably all decent MS mice released over the last decade. Looking at the hardware itself: - no noticeable notches in the weel - low-res: 18 events per 360deg rotation (click angle 20 deg) - high-res: 72 events per 360deg → matches multiplier of 4 - I can feel the notches during wheel turns - low-res: 24 events per 360 deg rotation (click angle 15 deg) - horiz wheel is tilt-based, continuous output value 1 - high-res: 24 events per 360deg with value 12 → matches multiplier of 12 - horiz wheel output rate doubles/triples?, values is 3 - It's a touch strip, not a wheel so no notches - high-res: events have value 4 instead of 1 a bit strange given that it doesn't actually have notches. Ok, why is this an issue for the current API? First, because the logitech multiplier used in Harry's patches looks suspiciously like the Resolution Multiplier so I think we should assume it's the same thing. Nestor, can you shed some light on that? - `REL_WHEEL` is defined as the number of notches, emulated where needed. - `REL_WHEEL_HI_RES` is the movement of the user's finger in microns. - `WM_MOUSEWHEEL` (Windows) is is a multiple of 120, defined as "the threshold for action to be taken and one such action" https://docs.microsoft.com/en-us/windows/desktop/inputdev/wm-mousewheel If the multiplier is set to M, this means we need an accumulated value of M until we can claim there was a wheel click. So after enabling the multiplier and setting it to the maximum (like Windows): - M units are 15deg rotation → 1 unit is 2620/M micron (see below). This is the `REL_WHEEL_HI_RES` value. - wheel diameter 20mm: 15 deg rotation is 2.62mm, 2620 micron (pi * 20mm / (360deg/15deg)) - For every M units accumulated, send one `REL_WHEEL` event The problem here is that we've now hardcoded 20mm/15 deg into the kernel and we have no way of getting the size of the wheel or the click angle into the kernel. In userspace we now have to undo the kernel's calculation. If our click angle is e.g. 20 degree we have to undo the (lossy) calculation from the kernel and calculate the correct angle instead. This also means the 15 is a hardcoded option forever and cannot be changed. In hid-logitech-hidpp.c, the microns per unit is hardcoded per device. Harry, did you measure those by hand? We'd need to update the kernel for every device and there are 10 years worth of devices from MS alone. The multiplier default is 8 which is in the right ballpark, so I'm pretty sure this is the same as the Resolution Multiplier, just in HID++ lingo. And given that the 120 magic factor is what Windows uses in the end, I can't imagine Logitech rolling their own thing here. Nestor? And we're already fairly inaccurate with the microns anyway. The MX Anywhere 2S has a click angle of 20 degrees (18 stops) and a 17mm wheel, so a wheel notch is approximately 2.67mm, one event at multiplier 8 (1/8 of a notch) would be 334 micron. That's only 80% of the fallback value of 406 in the kernel. Multiplier 6 gives us 445micron (10% off). I'm assuming multiplier 7 doesn't exist because it's not a factor of 120. Summary: Best option may be to simply do what Windows is doing, all the HW manufacturers have to use that approach after all. Switch `REL_WHEEL_HI_RES` to report in fractions of 120, with 120 being one notch and divide that by the multiplier for the actual events. So e.g. the Logitech multiplier 8 would send value 15 for each event in hi-res mode. This can be converted in userspace to whatever userspace needs (combined with a hwdb there that tells you wheel size/click angle/...). Conflicts: include/uapi/linux/input-event-codes.h -> I kept the new reserved event in the code, so I had to adapt the revert slightly Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Harry Cutts <hcutts@chromium.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Jiri Kosina <jkosina@suse.cz>
2018-11-21docs-networking: fix typo in defineJesse Brandeburg1-1/+1
The #define for NETIF_F_GSO_UDP_L4 was incorrect in the documentation, fix it by making it match the actual code. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-21ixgbe: add ipsec hw offload note to ixgbe DocumentationShannon Nelson1-0/+13
Add a short note about using IPsec Hardware Offload with the ixgbe driver. Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-11-21dt-bindings: clk: Introduce 'protected-clocks' propertyStephen Boyd1-0/+16
Add a generic clk property for clks which are not intended to be used by the OS due to security restrictions put in place by firmware. For example, on some Qualcomm firmwares reading or writing certain clk registers causes the entire system to reboot, but on other firmwares reading and writing those same registers is required to make devices like QSPI work. Rather than adding one-off properties each time a new set of clks appears to be protected, let's add a generic clk property to describe any set of clks that shouldn't be touched by the OS. This way we never need to register the clks or use them in certain firmware configurations. Cc: Rob Herring <robh+dt@kernel.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Taniya Das <tdas@codeaurora.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-11-20perf/x86/intel: Fix regression by default disabling perfmon v4 interrupt handlingPeter Zijlstra1-1/+2
Kyle Huey reported that 'rr', a replay debugger, broke due to the following commit: af3bdb991a5c ("perf/x86/intel: Add a separate Arch Perfmon v4 PMI handler") Rework the 'disable_counter_freezing' __setup() parameter such that we can explicitly enable/disable it and switch to default disabled. To this purpose, rename the parameter to "perf_v4_pmi=" which is a much better description and allows requiring a bool argument. [ mingo: Improved the changelog some more. ] Reported-by: Kyle Huey <me@kylehuey.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert O'Callahan <robert@ocallahan.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: acme@kernel.org Link: http://lkml.kernel.org/r/20181120170842.GZ2131@hirez.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-11-20Documentation/security-bugs: Postpone fix publication in exceptional casesWill Deacon1-10/+11
At the request of the reporter, the Linux kernel security team offers to postpone the publishing of a fix for up to 5 business days from the date of a report. While it is generally undesirable to keep a fix private after it has been developed, this short window is intended to allow distributions to package the fix into their kernel builds and permits early inclusion of the security team in the case of a co-ordinated disclosure with other parties. Unfortunately, discussions with major Linux distributions and cloud providers has revealed that 5 business days is not sufficient to achieve either of these two goals. As an example, cloud providers need to roll out KVM security fixes to a global fleet of hosts with sufficient early ramp-up and monitoring. An end-to-end timeline of less than two weeks dramatically cuts into the amount of early validation and increases the chance of guest-visible regressions. The consequence of this timeline mismatch is that security issues are commonly fixed without the involvement of the Linux kernel security team and are instead analysed and addressed by an ad-hoc group of developers across companies contributing to Linux. In some cases, mainline (and therefore the official stable kernels) can be left to languish for extended periods of time. This undermines the Linux kernel security process and puts upstream developers in a difficult position should they find themselves involved with an undisclosed security problem that they are unable to report due to restrictions from their employer. To accommodate the needs of these users of the Linux kernel and encourage them to engage with the Linux security team when security issues are first uncovered, extend the maximum period for which fixes may be delayed to 7 calendar days, or 14 calendar days in exceptional cases, where the logistics of QA and large scale rollouts specifically need to be accommodated. This brings parity with the linux-distros@ maximum embargo period of 14 calendar days. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Amit Shah <aams@amazon.com> Cc: Laura Abbott <labbott@redhat.com> Acked-by: Kees Cook <keescook@chromium.org> Co-developed-by: Thomas Gleixner <tglx@linutronix.de> Co-developed-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Tyler Hicks <tyhicks@canonical.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-11-20Merge tag 'media/v4.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds2-1/+6
Pull media fixes from Mauro Carvalho Chehab: - add a missing include at v4l2-controls uAPI header - minor kAPI update for the request API - some fixes at CEC core - use a lower minimum height for the virtual codec driver - cleanup a gcc warning due to the lack of a fall though markup - tc358743: Remove unnecessary self assignment - fix the V4L event subscription logic - docs: Document metadata format in struct v4l2_format - omap3isp and ipu3-cio2: fix unbinding logic * tag 'media/v4.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: media: ipu3-cio2: Use cio2_queues_exit media: ipu3-cio2: Unregister device nodes first, then release resources media: omap3isp: Unregister media device as first media: docs: Document metadata format in struct v4l2_format media: v4l: event: Add subscription to list before calling "add" operation media: dm365_ipipeif: better annotate a fall though media: Rename vb2_m2m_request_queue -> v4l2_m2m_request_queue media: cec: increase debug level for 'queue full' media: cec: check for non-OK/NACK conditions while claiming a LA media: vicodec: lower minimum height to 360 media: tc358743: Remove unnecessary self assignment media: v4l: fix uapi mpeg slice params definition v4l2-controls: add a missing include
2018-11-20x86/boot: Mostly revert commit ae7e1238e68f2a ("Add ACPI RSDP address to setup_header")Juergen Gross1-31/+1
Peter Anvin pointed out that commit: ae7e1238e68f2a ("x86/boot: Add ACPI RSDP address to setup_header") should be reverted as setup_header should only contain items set by the legacy BIOS. So revert said commit. Instead of fully reverting the dependent commit of: e7b66d16fe4172 ("x86/acpi, x86/boot: Take RSDP address for boot params if available") just remove the setup_header reference in order to replace it by a boot_params in a followup patch. Suggested-by: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Juergen Gross <jgross@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: boris.ostrovsky@oracle.com Cc: bp@alien8.de Cc: daniel.kiper@oracle.com Cc: sstabellini@kernel.org Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/20181120072529.5489-2-jgross@suse.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-11-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller6-86/+36
2018-11-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds3-17/+30
Pull networking fixes from David Miller: 1) Fix some potentially uninitialized variables and use-after-free in kvaser_usb can drier, from Jimmy Assarsson. 2) Fix leaks in qed driver, from Denis Bolotin. 3) Socket leak in l2tp, from Xin Long. 4) RSS context allocation fix in bnxt_en from Michael Chan. 5) Fix cxgb4 build errors, from Ganesh Goudar. 6) Route leaks in ipv6 when removing exceptions, from Xin Long. 7) Memory leak in IDR allocation handling of act_pedit, from Davide Caratti. 8) Use-after-free of bridge vlan stats, from Nikolay Aleksandrov. 9) When MTU is locked, do not force DF bit on ipv4 tunnels. From Sabrina Dubroca. 10) When NAPI cached skb is reused, we must set it to the proper initial state which includes skb->pkt_type. From Eric Dumazet. 11) Lockdep and non-linear SKB handling fix in tipc from Jon Maloy. 12) Set RX queue properly in various tuntap receive paths, from Matthew Cover. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (61 commits) tuntap: fix multiqueue rx ipv6: Fix PMTU updates for UDP/raw sockets in presence of VRF tipc: don't assume linear buffer when reading ancillary data tipc: fix lockdep warning when reinitilaizing sockets net-gro: reset skb->pkt_type in napi_reuse_skb() tc-testing: tdc.py: Guard against lack of returncode in executed command tc-testing: tdc.py: ignore errors when decoding stdout/stderr ip_tunnel: don't force DF when MTU is locked MAINTAINERS: Add entry for CAKE qdisc net: bridge: fix vlan stats use-after-free on destruction socket: do a generic_file_splice_read when proto_ops has no splice_read net: phy: mdio-gpio: Fix working over slow can_sleep GPIOs Revert "net: phy: mdio-gpio: Fix working over slow can_sleep GPIOs" net: phy: mdio-gpio: Fix working over slow can_sleep GPIOs net/sched: act_pedit: fix memory leak when IDR allocation fails net: lantiq: Fix returned value in case of error in 'xrx200_probe()' ipv6: fix a dst leak when removing its exception net: mvneta: Don't advertise 2.5G modes drivers/net/ethernet/qlogic/qed/qed_rdma.h: fix typo net/mlx4: Fix UBSAN warning of signed integer overflow ...
2018-11-18dt-bindings: net: phy: add bindings for the IC Plus Corp. IP101A/G PHYsMartin Blumenstingl1-0/+19
The IP101A and IP101G series both have various models. Depending on the board implementation we need a special property for the IP101GR (32-pin LQFP package) PHY: pin 21 ("RXER/INTR_32") outputs the "receive error" signal by default (LOW means "normal operation", HIGH means that there's either a decoding error of the received signal or that the PHY is receiving LPI). This pin can also be switched to INTR32 mode, where the interrupt signal is routed to this pin. The other PHYs don't need this special handling because they have more pins available so the interrupt function gets a dedicated pin. This adds two properties to either select the "receive error" or "interrupt" function of pin 21. Not specifying any function means that the default set by the bootloader is used. This is required because the IP101GR cannot be differentiated between other IP101 PHYs as the PHY identification registers on all of these is 0x02430c54. The IP101G (sold as die only, without package) may suffer from the same issue depending on how it's integrated into a multi chip package by another manufacturer. If only the RXER/INTR_32 pin is routed then the users of the die-only variant may also have to explicitly configure the mode of hte RXER/INTR_32 pin. This is the reason why no "is-ip101gr" property was added. I have no evidence though which would confirm this theory - so the binding itself is independent of that. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-18dt-bindings: vendor-prefix: add prefix for IC Plus Corp.Martin Blumenstingl1-0/+1
IC Plus Corp. has various Ethernet related products such as Ethernet transceivers, Ethernet controllers, Ethernet switches, etc. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-18net: Add part of TCP counts explanations in snmp_counters.rstyupeng1-1/+524
Add explanations of some generic TCP counters, fast open related counters and TCP abort related counters and several examples. Signed-off-by: yupeng <yupeng0921@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-15rxrpc: Fix life checkDavid Howells1-6/+11
The life-checking function, which is used by kAFS to make sure that a call is still live in the event of a pending signal, only samples the received packet serial number counter; it doesn't actually provoke a change in the counter, rather relying on the server to happen to give us a packet in the time window. Fix this by adding a function to force a ping to be transmitted. kAFS then keeps track of whether there's been a stall, and if so, uses the new function to ping the server, resetting the timeout to allow the reply to come back. If there's a stall, a ping and the call is *still* stalled in the same place after another period, then the call will be aborted. Fixes: bc5e3a546d55 ("rxrpc: Use MSG_WAITALL to tell sendmsg() to temporarily ignore signals") Fixes: f4d15fb6f99a ("rxrpc: Provide functions for allowing cleaner handling of signals") Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-14Merge tag 'pm-4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds3-69/+6
Pull power management fixes from Rafael Wysocki: "These remove a stale DT entry left behind after recent removal of a cpufreq driver without users, fix up error handling in the imx6q cpufreq driver, fix two issues in the cpufreq documentation, and update the ARM cpufreq driver. Specifics: - Drop stale DT binding for the arm_big_little_dt driver removed recently (Sudeep Holla). - Fix up error handling in the imx6q cpufreq driver to make it report voltage scaling failures (Anson Huang). - Fix two issues in the cpufreq documentation (Viresh Kumar, Zhao Wei Liew). - Fix ARM cpuidle driver initialization regression from the 4.19 time frame and rework the driver registration part of it to simplify code (Ulf Hansson)" * tag 'pm-4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ARM: cpuidle: Convert to use cpuidle_register|unregister() ARM: cpuidle: Don't register the driver when back-end init returns -ENXIO dt-bindings: cpufreq: remove stale arm_big_little_dt entry Documentation: cpufreq: Correct a typo cpufreq: imx6q: add return value check for voltage scale Documentation: cpu-freq: Frequencies aren't always sorted
2018-11-13Merge tag 'linux-can-fixes-for-4.20-20181109' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mkl/linux-canDavid S. Miller2-11/+19
Marc Kleine-Budde says: ==================== pull-request: can 2018-11-09 this is a pull request of 20 patches for net/master. First we have a patch by Oliver Hartkopp which changes the raw socket's raw_sendmsg() to return an error value if the user tries to send a CANFD frame to a CAN-2.0 device. The next two patches are by Jimmy Assarsson and fix potential problems in the kvaser_usb driver. YueHaibing's patches for the ucan driver fix a compile time warning and remove a duplicate include. Eugeniu Rosca patch adds more binding documentation to the rcar_can driver bindings. The next two patches are by Fabrizio Castro for the rcar_can driver and fixes a problem in the driver's probe function and document the r8a774a1 binding. Lukas Wunner's patch fixes a recpetion problem in hi311x driver by switching from edge to level triggered interruts. The next three patches all target the flexcan driver. Pankaj Bansal's patch unconditionally unlocks the last mailbox used for RX. Alexander Stein provides a better workaround for a hardware limitation when sending RTR frames, by using the last mailbox for TX, resulting in fewer lost frames. The patch by me simplyfies the driver, by making a runtime value a compile time constant. The following 4 patches are by me and provide the groundwork for the next patches by Oleksij Rempel. To avoid code duplication common code in the common CAN driver infrastructure is factured out and error handling is cleaned up. The next 4 patches are by Oleksij Rempel and fix the problem in the flexcan driver that other processes see TX frames arrive out of order with ragards to a RX'ed frame (which are send by a different system on the CAN bus as the result of our TX frame). ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-12Input: dt-bindings - fix a typo in file input-reset.txtDing Tao1-1/+1
Replace sysrq-reset-seq with keyset. Signed-off-by: Ding Tao <miyatsu@qq.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-11-12dt-bindings: phy-qcom-qmp: Fix several mistakes from prior commitsDouglas Anderson1-8/+23
Digging through the "phy-qcom-qmp" showed me many inconsistencies between the bindings and the reality of the driver. Let's fix them all. * In commit 2d66eab18375 ("dt-bindings: phy: qmp: Add support for QMP phy in IPQ8074") we probably should have explicitly listed that there are no clocks for this PHY and also added the reset names in alphabetical order. You can see that there are no clocks in the driver where "clk_list" is NULL. * In commit 8587b220f05e ("dt-bindings: phy-qcom-qmp: Update bindings for QMP V3 USB PHY") we probably should have listed the resets for this new PHY and also removed the "(Optional)" marking for the "cfg" reset since PHYs that need "cfg" really do need it. It's just that not all PHYs need it. * In commit 7f0802074120 ("dt-bindings: phy-qcom-qmp: Update bindings for sdm845") we forgot to update one instance of the string "qcom,qmp-v3-usb3-phy" to be "qcom,sdm845-qmp-usb3-phy". Let's fix that. We should also have added "qcom,sdm845-qmp-usb3-uni-phy" to the clock-names and reset-names lists. * In commit 99c7c7364b71 ("dt-bindings: phy-qcom-qmp: Add UFS phy compatible string for sdm845") we should have added the set of clocks and resets for "qcom,sdm845-qmp-ufs-phy". These were taken from the driver. * Cleanup the wording for what properties child nodes have to make it more obvious which types of PHYs need clocks and resets. This was sorta implicit in the "-names" description but I found myself confused. * As per the code not all "pcie qmp phys" have resets. Specifically note that the "has_lane_rst" property in the driver is false for "ipq8074-qmp-pcie-phy". Thus make it clear exactly which PHYs need child nodes with resets. Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Evan Green <evgreen@chromium.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-11-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller6-22/+46
2018-11-11Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds2-17/+19
Pull x86 fixes from Thomas Gleixner: "A set of x86 fixes: - Cure the LDT remapping to user space on 5 level paging which ended up in the KASLR space - Remove LDT mapping before freeing the LDT pages - Make NFIT MCE handling more robust - Unbreak the VSMP build by removing the dependency on paravirt ops - Support broken PIT emulation on Microsoft hyperV - Don't trace vmware_sched_clock() to avoid tracer recursion - Remove -pipe from KBUILD CFLAGS which breaks clang and is also slower on GCC - Trivial coding style and typo fixes" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu/vmware: Do not trace vmware_sched_clock() x86/vsmp: Remove dependency on pv_irq_ops x86/ldt: Remove unused variable in map_ldt_struct() x86/ldt: Unmap PTEs for the slot before freeing LDT pages x86/mm: Move LDT remap out of KASLR region on 5-level paging acpi/nfit, x86/mce: Validate a MCE's address before using it acpi/nfit, x86/mce: Handle only uncorrectable machine checks x86/build: Remove -pipe from KBUILD_CFLAGS x86/hyper-v: Fix indentation in hv_do_fast_hypercall16() Documentation/x86: Fix typo in zero-page.txt x86/hyper-v: Enable PIT shutdown quirk clockevents/drivers/i8253: Add support for PIT shutdown quirk
2018-11-11tcp: tsq: no longer use limit_output_bytes for paced flowsEric Dumazet1-1/+1
FQ pacing guarantees that paced packets queued by one flow do not add head-of-line blocking for other flows. After TCP GSO conversion, increasing limit_output_bytes to 1 MB is safe, since this maps to 16 skbs at most in qdisc or device queues. (or slightly more if some drivers lower {gso_max_segs|size}) We still can queue at most 1 ms worth of traffic (this can be scaled by wifi drivers if they need to) Tested: # ethtool -c eth0 | egrep "tx-usecs:|tx-frames:" # 40 Gbit mlx4 NIC tx-usecs: 16 tx-frames: 16 # tc qdisc replace dev eth0 root fq # for f in {1..10};do netperf -P0 -H lpaa24,6 -o THROUGHPUT;done Before patch: 27711 26118 27107 27377 27712 27388 27340 27117 27278 27509 After patch: 37434 36949 36658 36998 37711 37291 37605 36659 36544 37349 Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-11documentation of some IP/ICMP snmp countersyupeng2-0/+223
The snmp_counter.rst explains the meanings of snmp counters. It also provides a set of experiments (only 1 for this initial patch), combines the experiments' resutls and the snmp counters' meanings. This is an initial path, only explains a part of IP/ICMP counters and provide a simple ping test. Signed-off-by: yupeng <yupeng0921@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-10Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds2-2/+24
Pull i2c updates from Wolfram Sang: "I2C has one bugfix (qcom-geni driver), one arch enablement (i2c-omap driver, no code change), and a new driver (nvidia-gpu) this time" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: usb: typec: ucsi: add support for Cypress CCGx i2c: nvidia-gpu: make pm_ops static i2c: add i2c bus driver for NVIDIA GPU i2c: qcom-geni: Fix runtime PM mismatch with child devices MAINTAINERS: Add entry for i2c-omap driver i2c: omap: Enable for ARCH_K3 dt-bindings: i2c: omap: Add new compatible for AM654 SoCs
2018-11-09i2c: add i2c bus driver for NVIDIA GPUAjay Gupta1-0/+18
Latest NVIDIA GPU card has USB Type-C interface. There is a Type-C controller which can be accessed over I2C. This driver adds I2C bus driver to communicate with Type-C controller. I2C client driver will be part of USB Type-C UCSI driver. Signed-off-by: Ajay Gupta <ajayg@nvidia.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> [wsa: kept Makefile sorting] Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-11-09dt-bindings: i2c: omap: Add new compatible for AM654 SoCsVignesh R1-2/+6
AM654 SoCs have same I2C IP as OMAP SoCs. Add new compatible to handle AM654 SoCs. While at that reformat the existing compatible list for older SoCs to list one valid compatible per line. Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-11-09can: hi311x: Use level-triggered interruptLukas Wunner1-1/+1
If the hi3110 shares the SPI bus with another traffic-intensive device and packets are received in high volume (by a separate machine sending with "cangen -g 0 -i -x"), reception stops after a few minutes and the counter in /proc/interrupts stops incrementing. Bus state is "active". Bringing the interface down and back up reconvenes the reception. The issue is not observed when the hi3110 is the sole device on the SPI bus. Using a level-triggered interrupt makes the issue go away and lets the hi3110 successfully receive 2 GByte over the course of 5 days while a ks8851 Ethernet chip on the same SPI bus handles 6 GByte of traffic. Unfortunately the hi3110 datasheet is mum on the trigger type. The pin description on page 3 only specifies the polarity (active high): http://www.holtic.com/documents/371-hi-3110_v-rev-kpdf.do Cc: Mathias Duckeck <m.duckeck@kunbus.de> Cc: Akshay Bhat <akshay.bhat@timesys.com> Cc: Casey Fitzpatrick <casey.fitzpatrick@timesys.com> Signed-off-by: Lukas Wunner <lukas@wunner.de> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-11-09dt-bindings: can: rcar_can: Add r8a774a1 supportFabrizio Castro1-5/+13
Document RZ/G2M (r8a774a1) SoC specific bindings. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Signed-off-by: Chris Paterson <Chris.Paterson2@renesas.com> Reviewed-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-11-09dt-bindings: can: rcar_can: document r8a77965 supportEugeniu Rosca1-5/+5
Document the support for rcar_can on R8A77965 SoC devices. Add R8A77965 to the list of SoCs which require the "assigned-clocks" and "assigned-clock-rates" properties (thanks, Sergei). Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-11-08Merge tag 'led-fixes-for-4.20-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-ledsLinus Torvalds1-2/+2
Pull LED fixes from Jacek Anaszewski: "All three fixes are related to the newly added pattern trigger: - remove mutex_lock() from timer callback, which would trigger problems related to sleeping in atomic context, the removal is harmless since mutex protection turned out to be redundant in this case - fix pattern parsing to properly handle intervals with brightness == 0 - fix typos in the ABI documentation" * tag 'led-fixes-for-4.20-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: Documentation: ABI: led-trigger-pattern: Fix typos leds: trigger: Fix sleeping function called from invalid context Fix pattern handling optimalization
2018-11-08dt-bindings: cpufreq: remove stale arm_big_little_dt entrySudeep Holla1-65/+0
Most of the ARM platforms used v2 OPP bindings to support big-little configurations. This arm_big_little_dt binding is incomplete and was never used. Commit f174e49e4906 (cpufreq: remove unused arm_big_little_dt driver) removed the driver supporting this binding, but the binding was left unnoticed, so let's get rid of it now. Fixes: f174e49e4906 (cpufreq: remove unused arm_big_little_dt driver) Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-11-07net: provide a sysctl raw_l3mdev_accept for raw socket lookup with VRFsMike Manning2-0/+25
Add a sysctl raw_l3mdev_accept to control raw socket lookup in a manner similar to use of tcp_l3mdev_accept for stream and of udp_l3mdev_accept for datagram sockets. Have this default to enabled for reasons of backwards compatibility. This is so as to specify the output device with cmsg and IP_PKTINFO, but using a socket not bound to the corresponding VRF. This allows e.g. older ping implementations to be run with specifying the device but without executing it in the VRF. If the option is disabled, packets received in a VRF context are only handled by a raw socket bound to the VRF, and correspondingly packets in the default VRF are only handled by a socket not bound to any VRF. Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com> Reviewed-by: David Ahern <dsahern@gmail.com> Tested-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net: allow binding socket in a VRF when there's an unbound socketRobert Shearman1-4/+5
Change the inet socket lookup to avoid packets arriving on a device enslaved to an l3mdev from matching unbound sockets by removing the wildcard for non sk_bound_dev_if and instead relying on check against the secondary device index, which will be 0 when the input device is not enslaved to an l3mdev and so match against an unbound socket and not match when the input device is enslaved. Change the socket binding to take the l3mdev into account to allow an unbound socket to not conflict sockets bound to an l3mdev given the datapath isolation now guaranteed. Signed-off-by: Robert Shearman <rshearma@vyatta.att-mail.com> Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com> Reviewed-by: David Ahern <dsahern@gmail.com> Tested-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07Documentation: ABI: led-trigger-pattern: Fix typosGeert Uytterhoeven1-2/+2
- Spelling s/brigntess/brightness/, - Double "use". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2018-11-07Documentation: cpufreq: Correct a typoZhao Wei Liew1-1/+1
Fix a typo in the admin-guide documentation for cpufreq. Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-11-07Documentation: cpu-freq: Frequencies aren't always sortedViresh Kumar1-3/+5
The order in which the frequencies are displayed in cpufreq stats depends on the order in which the frequencies were sorted in the frequency table provided to cpufreq core by the cpufreq driver. They can be completely unsorted as well. The documentation's claim that the stats will be sorted in descending order is hence incorrect and here is an attempt to fix it. Reported-by: Pavel <pavel2000@ngs.ru> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-11-07USB: Wait for extra delay time after USB_PORT_FEAT_RESET for quirky hubKai-Heng Feng1-0/+2
Devices connected under Terminus Technology Inc. Hub (1a40:0101) may fail to work after the system resumes from suspend: [ 206.063325] usb 3-2.4: reset full-speed USB device number 4 using xhci_hcd [ 206.143691] usb 3-2.4: device descriptor read/64, error -32 [ 206.351671] usb 3-2.4: device descriptor read/64, error -32 Info for this hub: T: Bus=03 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=480 MxCh= 4 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=1a40 ProdID=0101 Rev=01.11 S: Product=USB 2.0 Hub C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub Some expirements indicate that the USB devices connected to the hub are innocent, it's the hub itself is to blame. The hub needs extra delay time after it resets its port. Hence wait for extra delay, if the device is connected to this quirky hub. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Cc: stable <stable@vger.kernel.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-11-06x86/mm: Move LDT remap out of KASLR region on 5-level pagingKirill A. Shutemov1-16/+18
On 5-level paging the LDT remap area is placed in the middle of the KASLR randomization region and it can overlap with the direct mapping, the vmalloc or the vmap area. The LDT mapping is per mm, so it cannot be moved into the P4D page table next to the CPU_ENTRY_AREA without complicating PGD table allocation for 5-level paging. The 4 PGD slot gap just before the direct mapping is reserved for hypervisors, so it cannot be used. Move the direct mapping one slot deeper and use the resulting gap for the LDT remap area. The resulting layout is the same for 4 and 5 level paging. [ tglx: Massaged changelog ] Fixes: f55f0501cbf6 ("x86/pti: Put the LDT in its own PGD if PTI is on") Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Andy Lutomirski <luto@kernel.org> Cc: bp@alien8.de Cc: hpa@zytor.com Cc: dave.hansen@linux.intel.com Cc: peterz@infradead.org Cc: boris.ostrovsky@oracle.com Cc: jgross@suse.com Cc: bhe@redhat.com Cc: willy@infradead.org Cc: linux-mm@kvack.org Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20181026122856.66224-2-kirill.shutemov@linux.intel.com
2018-11-06media: docs: Document metadata format in struct v4l2_formatSakari Ailus2-1/+6
The format fields in struct v4l2_format were otherwise documented but the meta field was missing. Document it. Reported-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-05XArray: Fix DocumentationMatthew Wilcox1-1/+5
Minor fixes. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-11-05XArray: Handle NULL pointers differently for allocationMatthew Wilcox1-9/+19
For allocating XArrays, it makes sense to distinguish beteen erasing an entry and storing NULL. Storing NULL keeps the index allocated with a NULL pointer associated with it while xa_erase() frees the index. Some existing IDR users rely on this ability. Signed-off-by: Matthew Wilcox <willy@infradead.org>