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2018-06-27inotify: Add flag IN_MASK_CREATE for inotify_add_watch()Henry Wilson
The flag IN_MASK_CREATE is introduced as a flag for inotiy_add_watch() which prevents inotify from modifying any existing watches when invoked. If the pathname specified in the call has a watched inode associated with it and IN_MASK_CREATE is specified, fail with an errno of EEXIST. Use of IN_MASK_CREATE with IN_MASK_ADD is reserved for future use and will return EINVAL. RATIONALE In the current implementation, there is no way to prevent inotify_add_watch() from modifying existing watch descriptors. Even if the caller keeps a record of all watch descriptors collected, this is only sufficient to detect that an existing watch descriptor may have been modified. The assumption that a particular path will map to the same inode over multiple calls to inotify_add_watch() cannot be made as files can be renamed or deleted. It is also not possible to assume that two distinct paths do no map to the same inode, due to hard-links or a dereferenced symbolic link. Further uses of inotify_add_watch() to revert the change may cause other watch descriptors to be modified or created, merely compunding the problem. There is currently no system call such as inotify_modify_watch() to explicity modify a watch descriptor, which would be able to revert unwanted changes. Thus the caller cannot guarantee to be able to revert any changes to existing watch decriptors. Additionally the caller cannot assume that the events that are associated with a watch descriptor are within the set requested, as any future calls to inotify_add_watch() may unintentionally modify a watch descriptor's mask. Thus it cannot currently be guaranteed that a watch descriptor will only generate events which have been requested. The program must filter events which come through its watch descriptor to within its expected range. Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Henry Wilson <henry.wilson@acentic.com> Signed-off-by: Jan Kara <jack@suse.cz>
2018-06-27Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Three small bug fixes (barrier elimination, memory leak on unload, spinlock recursion) and a technical enhancement left over from the merge window: the TCMU read length support is required for tape devices read when the length of the read is greater than the tape block size" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: scsi_debug: Fix memory leak on module unload scsi: qla2xxx: Spinlock recursion in qla_target scsi: ipr: Eliminate duplicate barriers scsi: target: tcmu: add read length support
2018-06-26tcp: add SNMP counter for zero-window dropsYafang Shao
It will be helpful if we could display the drops due to zero window or no enough window space. So a new SNMP MIB entry is added to track this behavior. This entry is named LINUX_MIB_TCPZEROWINDOWDROP and published in /proc/net/netstat in TcpExt line as TCPZeroWindowDrop. Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-26Merge tag 'iio-for-4.19a' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First set of IIO new device support, features and cleanups in the 4.19 cycle The usual mixed bunch. Particular good to see is the generic touch screen driver. Will be interesting to see if this works for other ADCs without major changes. Core features * Channel types - New position relative channel type primarily for touch screen sensors to feed the generic touchscreen driver. New device support * ad5586 - Add support for the AD5311R DAC. * Generic touch screen driver as an IIO consumer. - Note this is in input, but due to dependencies is coming through the IIO tree. - Specific support for this added to the at91-sama5d2 ADC. - Various necessary DT bindings added. Staging Drops * ADIS16060 gyro - A device with a very odd interface that was never cleanly supported. It's now very difficult to get, so unlikely it'll ever be fixed up. Cleanups and minor features and fixes * core - Fix y2038 timestamp issues now the core support is in place. * 104-quad-8 - Provide some defines for magic numbers to help readability. - Fix an off by one error in register selection * ad7606 - Put in a missing function parameter name in a prototype. * adis16023 - Use generic sign_extend function rather than local version. * adis16240 - Use generic sign_extend funciton rather than local version. * at91-sama5d2 - Drop dependency on HAS_DMA now this is handled elsewhere. Will improve build test coverage. - Add oversampling ratio control. Note there is a minor ABI change here to increase the apparent depth to 14 bits so as to allow for transparent provision of different oversampling ratios that drop the actual bit depth to 13 or 12 bits. * hx711 - Add a MAINTAINERS entry for this device. * inv_mpu6050 - Replace the timestamp fifo 'special' code with generic timestamp handling. - Switch to using local store of timestamp divider rather than rate as that is more helpful for accurate time measurement. - Fix an unaligned access that didn't seem to be causing any trouble. - Use the fifo overflow bit to track the overflow status rather than a software counter. - New timestamping mechanism to deal with missed sample interrupts. * stm32-adc - Drop HAS_DMA build dependency. * sun4i-gpadc - Select REGMAP_IRQ a very rarely hit build issue fix.
2018-06-24time: Introduce struct __kernel_itimerspecDeepa Dinamani
struct itimerspec is not y2038-safe. Introduce a new struct __kernel_itimerspec based on the kernel internal y2038-safe struct itimerspec64. The definition of struct __kernel_itimerspec includes two struct __kernel_timespec. Since struct __kernel_timespec has the same representation in native and compat modes, so does struct __kernel_itimerspec. This helps have a common entry point for syscalls using struct __kernel_itimerspec. New y2038-safe syscalls will use this new type. Since most of the new syscalls are just an update to the native syscalls with the type update, place the new definition under CONFIG_64BIT_TIME. This helps architectures that do not support the above config to keep using the old definition of struct itimerspec. Also change the get/put_itimerspec64 to use struct__kernel_itimerspec. This will help 32 bit architectures to use the new syscalls when architectures select CONFIG_64BIT_TIME. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: arnd@arndb.de Cc: viro@zeniv.linux.org.uk Cc: linux-fsdevel@vger.kernel.org Cc: linux-api@vger.kernel.org Cc: y2038@lists.linaro.org Link: https://lkml.kernel.org/r/20180617051144.29756-2-deepa.kernel@gmail.com
2018-06-24Merge tag 'for-linus-20180623' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: - Further timeout fixes. We aren't quite there yet, so expect another round of fixes for that to completely close some of the IRQ vs completion races. (Christoph/Bart) - Set of NVMe fixes from the usual suspects, mostly error handling - Two off-by-one fixes (Dan) - Another bdi race fix (Jan) - Fix nbd reconfigure with NBD_DISCONNECT_ON_CLOSE (Doron) * tag 'for-linus-20180623' of git://git.kernel.dk/linux-block: blk-mq: Fix timeout handling in case the timeout handler returns BLK_EH_DONE bdi: Fix another oops in wb_workfn() lightnvm: Remove depends on HAS_DMA in case of platform dependency nvme-pci: limit max IO size and segments to avoid high order allocations nvme-pci: move nvme_kill_queues to nvme_remove_dead_ctrl nvme-fc: release io queues to allow fast fail nbd: Add the nbd NBD_DISCONNECT_ON_CLOSE config flag. block: sed-opal: Fix a couple off by one bugs blk-mq-debugfs: Off by one in blk_mq_rq_state_name() nvmet: reset keep alive timer in controller enable nvme-rdma: don't override opts->queue_size nvme-rdma: Fix command completion race at error recovery nvme-rdma: fix possible free of a non-allocated async event buffer nvme-rdma: fix possible double free condition when failing to create a controller Revert "block: Add warning for bi_next not NULL in bio_endio()" block: fix timeout changes for legacy request drivers
2018-06-23xfrm: Add virtual xfrm interfacesSteffen Klassert
This patch adds support for virtual xfrm interfaces. Packets that are routed through such an interface are guaranteed to be IPsec transformed or dropped. It is a generic virtual interface that ensures IPsec transformation, no need to know what happens behind the interface. This means that we can tunnel IPv4 and IPv6 through the same interface and support all xfrm modes (tunnel, transport and beet) on it. Co-developed-by: Lorenzo Colitti <lorenzo@google.com> Co-developed-by: Benedict Wong <benedictwong@google.com> Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: Benedict Wong <benedictwong@google.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: Shannon Nelson <shannon.nelson@oracle.com> Tested-by: Benedict Wong <benedictwong@google.com> Tested-by: Antony Antony <antony@phenome.org> Reviewed-by: Eyal Birger <eyal.birger@gmail.com>
2018-06-23xfrm: Add a new lookup key to match xfrm interfaces.Steffen Klassert
This patch adds the xfrm interface id as a lookup key for xfrm states and policies. With this we can assign states and policies to virtual xfrm interfaces. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: Shannon Nelson <shannon.nelson@oracle.com> Acked-by: Benedict Wong <benedictwong@google.com> Tested-by: Benedict Wong <benedictwong@google.com> Tested-by: Antony Antony <antony@phenome.org> Reviewed-by: Eyal Birger <eyal.birger@gmail.com>
2018-06-23xfrm: Extend the output_mark to support input direction and masking.Steffen Klassert
We already support setting an output mark at the xfrm_state, unfortunately this does not support the input direction and masking the marks that will be applied to the skb. This change adds support applying a masked value in both directions. The existing XFRMA_OUTPUT_MARK number is reused for this purpose and as it is now bi-directional, it is renamed to XFRMA_SET_MARK. An additional XFRMA_SET_MARK_MASK attribute is added for setting the mask. If the attribute mask not provided, it is set to 0xffffffff, keeping the XFRMA_OUTPUT_MARK existing 'full mask' semantics. Co-developed-by: Tobias Brunner <tobias@strongswan.org> Co-developed-by: Eyal Birger <eyal.birger@gmail.com> Co-developed-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Tobias Brunner <tobias@strongswan.org> Signed-off-by: Eyal Birger <eyal.birger@gmail.com> Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
2018-06-22Merge branch 'drm-next-4.19' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next First feature request for 4.19. Highlights: - Add initial amdgpu documentation - Add initial GPU scheduler documention - GPU scheduler fixes for dying processes - Add support for the JPEG engine on VCN - Switch CI to use powerplay by default - EDC support for CZ - More powerplay cleanups - Misc DC fixes Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180621161138.3008-1-alexander.deucher@amd.com
2018-06-22Merge tag 'drm-misc-next-2018-06-21' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 4.19: UAPI Changes: - Add writeback connector (Brian Starkey/Liviu Dudau) - Add "content type" property to HDMI connectors (Stanislav Lisovskiy) Cross-subsystem Changes: - some devicetree Docs update - fix compile breakage on ION due to the dma-buf cleanups (Christian König) Core Changes: - Reject over-sized allocation requests early (Chris Wilson) - gem-fb-helper: Always do implicit sync (Daniel Vetter) - dma-buf cleanups (Christian König) Driver Changes: - Fixes for the otm8009a panel driver (Philippe Cornu) - Add Innolux TV123WAM panel driver support (Sandeep Panda) - Move GEM BO to drm_framebuffer in few drivers (Daniel Stone) - i915 pinning improvements (Chris Wilson) - Stop consulting plane->fb/crtc in a few drivers (Ville Syrjälä) Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180621105428.GA20795@juma
2018-06-20nbd: Add the nbd NBD_DISCONNECT_ON_CLOSE config flag.Doron Roberts-Kedes
If NBD_DISCONNECT_ON_CLOSE is set on a device, then the driver will issue a disconnect from nbd_release if the device has no remaining bdev->bd_openers. Fix ret val so reconfigure with only setting the flag succeeds. Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Doron Roberts-Kedes <doronrk@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-06-20Merge drm-upstream/drm-next into drm-misc-nextGustavo Padovan
We got a few conflicts in drm_atomic.c after merging the DRM writeback support, now we need a backmerge to unlock develop development on drm-misc-next. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
2018-06-20drm: writeback: Add client capability for exposing writeback connectorsLiviu Dudau
Due to the fact that writeback connectors behave in a special way in DRM (they always report being disconnected) we might confuse some userspace. Add a client capability for writeback connectors that will filter them out for clients that don't understand the capability. Changelog: - only accept the capability if the client has already set the DRM_CLIENT_CAP_ATOMIC one. Cc: Sean Paul <seanpaul@chromium.org> Cc: Brian Starkey <brian.starkey@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com> Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Brian Starkey <brian.starkey@arm.com> Link: https://patchwork.freedesktop.org/patch/229038/
2018-06-20drm: Add writeback connector typeBrian Starkey
Writeback connectors represent writeback engines which can write the CRTC output to a memory framebuffer. Add a writeback connector type and related support functions. Drivers should initialize a writeback connector with drm_writeback_connector_init() which takes care of setting up all the writeback-specific details on top of the normal functionality of drm_connector_init(). Writeback connectors have a WRITEBACK_FB_ID property, used to set the output framebuffer, and a WRITEBACK_PIXEL_FORMATS blob used to expose the supported writeback formats to userspace. When a framebuffer is attached to a writeback connector with the WRITEBACK_FB_ID property, it is used only once (for the commit in which it was included), and userspace can never read back the value of WRITEBACK_FB_ID. WRITEBACK_FB_ID can only be set if the connector is attached to a CRTC. Changes since v1: - Added drm_writeback.c + documentation - Added helper to initialize writeback connector in one go - Added core checks - Squashed into a single commit - Dropped the client cap - Writeback framebuffers are no longer persistent Changes since v2: Daniel Vetter: - Subclass drm_connector to drm_writeback_connector - Relax check to allow CRTC to be set without an FB - Add some writeback_ prefixes - Drop PIXEL_FORMATS_SIZE property, as it was unnecessary Gustavo Padovan: - Add drm_writeback_job to handle writeback signalling centrally Changes since v3: - Rebased - Rename PIXEL_FORMATS -> WRITEBACK_PIXEL_FORMATS Chances since v4: - Embed a drm_encoder inside the drm_writeback_connector to reduce the amount of boilerplate code required from the drivers that are using it. Changes since v5: - Added Rob Clark's atomic_commit() vfunc to connector helper funcs, so that writeback jobs are committed from atomic helpers - Updated create_writeback_properties() signature to return an error code rather than a boolean false for failure. - Free writeback job with the connector state rather than when doing the cleanup_work() Changes since v7: - fix extraneous use of out_fence that is only introduced in a subsequent patch. Changes since v8: - whitespace changes pull from subsequent patch Changes since v9: - Revert the v6 changes that free the writeback job in the connector state cleanup and return to doing it in the cleanup_work() function Signed-off-by: Brian Starkey <brian.starkey@arm.com> [rebased and fixed conflicts] Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> [rebased and added atomic_commit() vfunc for writeback jobs] Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/229037/
2018-06-19IB/mlx5: Add DEVX query EQN supportYishai Hadas
Return the matching device EQN for a given user vector number via the DEVX interface. Note: EQs are owned by the kernel and shared by all user processes. Basically, a user CQ can point to any EQ. The kernel doesn't enforce any such limitation today either. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-19IB/mlx5: Add DEVX support for memory registrationYishai Hadas
Add support to register a memory with the firmware via the DEVX interface. The driver translates a given user address to ib_umem then it will register the physical addresses with the firmware and get a unique id for this registration to be used for this virtual address. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-19IB/mlx5: Add support for DEVX query UARYishai Hadas
Return a device UAR index for a given user index via the DEVX interface. Security note: The hardware protection mechanism works like this: Each device object that is subject to UAR doorbells (QP/SQ/CQ) gets a UAR ID (called uar_page in the device specification manual) upon its creation. Then upon doorbell, hardware fetches the object context for which the doorbell was rang, and validates that the UAR through which the DB was rang matches the UAR ID of the object. If no match the doorbell is silently ignored by the hardware. Of course, the user cannot ring a doorbell on a UAR that was not mapped to it. Now in devx, as the devx kernel does not manipulate the QP/SQ/CQ command mailboxes (except tagging them with UID), we expose to the user its UAR ID, so it can embed it in these objects in the expected specification format. So the only thing the user can do is hurt itself by creating a QP/SQ/CQ with a UAR ID other than his, and then in this case other users may ring a doorbell on its objects. The consequence of that will be that another user can schedule a QP/SQ of the buggy user for execution (just insert it to the hardware schedule queue or arm its CQ for event generation), no further harm is expected. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-19IB/mlx5: Add DEVX support for modify and query commandsYishai Hadas
Add support in DEVX for modify and query commands, the required lock is taken (i.e. READ/WRITE) by the KABI infrastructure accordingly. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-19IB/mlx5: Add obj create and destroy functionalityYishai Hadas
Add support to create and destroy firmware objects via the DEVX interface. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-19IB/mlx5: Add support for DEVX general commandYishai Hadas
Add support to run general firmware command via the DEVX interface. A command that works on some object (e.g. CQ, WQ, etc.) will be added in next patches while maintaining the required object lock. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-19IB/mlx5: Introduce DEVXYishai Hadas
Introduce DEVX to enable direct device commands in downstream patches from this series. In that mode of work the firmware manages the isolation between processes' resources and as such a DEVX user id is created and assigned to the given user context upon allocation request. A capability check is done to make sure that this feature is really supported by the firmware prior to creating the DEVX user id. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-19audit: rename FILTER_TYPE to FILTER_EXCLUDERichard Guy Briggs
The AUDIT_FILTER_TYPE name is vague and misleading due to not describing where or when the filter is applied and obsolete due to its available filter fields having been expanded. Userspace has already renamed it from AUDIT_FILTER_TYPE to AUDIT_FILTER_EXCLUDE without checking if it already exists. The userspace maintainer assures that as long as it is set to the same value it will not be a problem since the userspace code does not treat compiler warnings as errors. If this policy changes then checks if it already exists can be added at the same time. See: https://github.com/linux-audit/audit-kernel/issues/89 Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
2018-06-18scsi: target: tcmu: add read length supportbstroesser@ts.fujitsu.com
Generally target core and TCMUser seem to work fine for tape devices and media changers. But there is at least one situation where TCMUser is not able to support sequential access device emulation correctly. The situation is when an initiator sends a SCSI READ CDB with a length that is greater than the length of the tape block to read. We can distinguish two subcases: A) The initiator sent the READ CDB with the SILI bit being set. In this case the sequential access device has to transfer the data from the tape block (only the length of the tape block) and transmit a good status. The current interface between TCMUser and the userspace does not support reduction of the read data size by the userspace program. The patch below fixes this subcase by allowing the userspace program to specify a reduced data size in read direction. B) The initiator sent the READ CDB with the SILI bit not being set. In this case the sequential access device has to transfer the data from the tape block as in A), but additionally has to transmit CHECK CONDITION with the ILI bit set and NO SENSE in the sensebytes. The information field in the sensebytes must contain the residual count. With the below patch a user space program can specify the real read data length and appropriate sensebytes. TCMUser then uses the se_cmd flag SCF_TREAT_READ_AS_NORMAL, to force target core to transmit the real data size and the sensebytes. Note: the flag SCF_TREAT_READ_AS_NORMAL is introduced by Lee Duncan's patch "[PATCH v4] target: transport should handle st FM/EOM/ILI reads" from Tue, 15 May 2018 18:25:24 -0700. Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com> Acked-by: Mike Christie <mchristi@redhat.com> Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-06-18fsi: scom: Major overhaulBenjamin Herrenschmidt
This was too hard to split ... this adds a number of features to the SCOM user interface: - Support for indirect SCOMs - read()/write() interface now handle errors and retries - New ioctl() "raw" interface for use by debuggers Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Eddie James <eajames@linux.vnet.ibm.com> Reviewed-by: Alistair Popple <alistair@popple.id.au>
2018-06-17Merge tag 'docs-broken-links' of git://linuxtv.org/mchehab/experimentalLinus Torvalds
Pull documentation fixes from Mauro Carvalho Chehab: "This solves a series of broken links for files under Documentation, and improves a script meant to detect such broken links (see scripts/documentation-file-ref-check). The changes on this series are: - can.rst: fix a footnote reference; - crypto_engine.rst: Fix two parsing warnings; - Fix a lot of broken references to Documentation/*; - improve the scripts/documentation-file-ref-check script, in order to help detecting/fixing broken references, preventing false-positives. After this patch series, only 33 broken references to doc files are detected by scripts/documentation-file-ref-check" * tag 'docs-broken-links' of git://linuxtv.org/mchehab/experimental: (26 commits) fix a series of Documentation/ broken file name references Documentation: rstFlatTable.py: fix a broken reference ABI: sysfs-devices-system-cpu: remove a broken reference devicetree: fix a series of wrong file references devicetree: fix name of pinctrl-bindings.txt devicetree: fix some bindings file names MAINTAINERS: fix location of DT npcm files MAINTAINERS: fix location of some display DT bindings kernel-parameters.txt: fix pointers to sound parameters bindings: nvmem/zii: Fix location of nvmem.txt docs: Fix more broken references scripts/documentation-file-ref-check: check tools/*/Documentation scripts/documentation-file-ref-check: get rid of false-positives scripts/documentation-file-ref-check: hint: dash or underline scripts/documentation-file-ref-check: add a fix logic for DT scripts/documentation-file-ref-check: accept more wildcards at filenames scripts/documentation-file-ref-check: fix help message media: max2175: fix location of driver's companion documentation media: v4l: fix broken video4linux docs locations media: dvb: point to the location of the old README.dvb-usb file ...
2018-06-16Merge branch 'work.aio' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull aio fixes from Al Viro: "Assorted AIO followups and fixes" * 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: eventpoll: switch to ->poll_mask aio: only return events requested in poll_mask() for IOCB_CMD_POLL eventfd: only return events requested in poll_mask() aio: mark __aio_sigset::sigmask const
2018-06-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Various netfilter fixlets from Pablo and the netfilter team. 2) Fix regression in IPVS caused by lack of PMTU exceptions on local routes in ipv6, from Julian Anastasov. 3) Check pskb_trim_rcsum for failure in DSA, from Zhouyang Jia. 4) Don't crash on poll in TLS, from Daniel Borkmann. 5) Revert SO_REUSE{ADDR,PORT} change, it regresses various things including Avahi mDNS. From Bart Van Assche. 6) Missing of_node_put in qcom/emac driver, from Yue Haibing. 7) We lack checking of the TCP checking in one special case during SYN receive, from Frank van der Linden. 8) Fix module init error paths of mac80211 hwsim, from Johannes Berg. 9) Handle 802.1ad properly in stmmac driver, from Elad Nachman. 10) Must grab HW caps before doing quirk checks in stmmac driver, from Jose Abreu. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits) net: stmmac: Run HWIF Quirks after getting HW caps neighbour: skip NTF_EXT_LEARNED entries during forced gc net: cxgb3: add error handling for sysfs_create_group tls: fix waitall behavior in tls_sw_recvmsg tls: fix use-after-free in tls_push_record l2tp: filter out non-PPP sessions in pppol2tp_tunnel_ioctl() l2tp: reject creation of non-PPP sessions on L2TPv2 tunnels mlxsw: spectrum_switchdev: Fix port_vlan refcounting mlxsw: spectrum_router: Align with new route replace logic mlxsw: spectrum_router: Allow appending to dev-only routes ipv6: Only emit append events for appended routes stmmac: added support for 802.1ad vlan stripping cfg80211: fix rcu in cfg80211_unregister_wdev mac80211: Move up init of TXQs mac80211_hwsim: fix module init error paths cfg80211: initialize sinfo in cfg80211_get_station nl80211: fix some kernel doc tag mistakes hv_netvsc: Fix the variable sizes in ipsecv2 and rsc offload rds: avoid unenecessary cong_update in loop transport l2tp: clean up stale tunnel or session in pppol2tp_connect's error path ...
2018-06-16Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds
Pull virtio updates from Michael Tsirkin: "virtio, vhost: features, fixes - PCI virtual function support for virtio - DMA barriers for virtio strong barriers - bugfixes" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio: update the comments for transport features virtio_pci: support enabling VFs vhost: fix info leak due to uninitialized memory virtio_ring: switch to dma_XX barriers for rpmsg
2018-06-15docs: Fix some broken referencesMauro Carvalho Chehab
As we move stuff around, some doc references are broken. Fix some of them via this script: ./scripts/documentation-file-ref-check --fix Manually checked if the produced result is valid, removing a few false-positives. Acked-by: Takashi Iwai <tiwai@suse.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Coly Li <colyli@suse.de> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15uapi/drm: add AMDGPU_HW_IP_VCN_JPEG for jpeg CSBoyuan Zhang
Add AMDGPU_HW_IP_VCN_JPEG define for jpeg CS Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-15drm/amdgpu: add kernel doc for memory domains.Samuel Li
Document the GEM domains exposed to userspace. Suggested-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Samuel Li <Samuel.Li@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-15cfg80211: Add support for HELuca Coelho
Add support for the HE in cfg80211 and also add userspace API to nl80211 to send rate information out, conforming with P802.11ax_D2.0. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Ido Yariv <idox.yariv@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2018-06-15nl80211: add scan features for improved scan privacyJohannes Berg
Add the scan flags for randomized SN and minimized probe request content for improved scan privacy. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2018-06-15nl80211: fix some kernel doc tag mistakesLuca Coelho
There is a bunch of tags marking constants with &, which means struct or enum name. Replace them with %, which is the correct tag for constants. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2018-06-15Merge tag 'sound-fix-4.18-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Here is a collection of small fixes on top of the previous update. All small and obvious fixes. Mostly for usual suspects, USB-audio and HD-audio, but a few trivial error handling fixes for misc drivers as well" * tag 'sound-fix-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: usb-audio: Always create the interrupt pipe for the mixer ALSA: usb-audio: Add insertion control for UAC3 BADD ALSA: usb-audio: Change in connectors control creation interface ALSA: usb-audio: Add bi-directional terminal types ALSA: lx6464es: add error handling for pci_ioremap_bar ALSA: sonicvibes: add error handling for snd_ctl_add ALSA: usb-audio: Remove explicitly listed Mytek devices ALSA: usb-audio: Generic DSD detection for XMOS-based implementations ALSA: usb-audio: Add native DSD support for Mytek DACs ALSA: hda/realtek - Add shutup hint ALSA: usb-audio: Disable the quirk for Nura headset ALSA: hda: add dock and led support for HP ProBook 640 G4 ALSA: hda: add dock and led support for HP EliteBook 830 G5 ALSA: emu10k1: add error handling for snd_ctl_add ALSA: fm801: add error handling for snd_ctl_add
2018-06-14aio: mark __aio_sigset::sigmask constAvi Kivity
io_pgetevents() will not change the signal mask. Mark it const to make it clear and to reduce the need for casts in user code. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Avi Kivity <avi@scylladb.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-06-14ALSA: usb-audio: Add bi-directional terminal typesJorge Sanjuan
Define the bi-directional USB terminal types for audio devices. Signed-off-by: Jorge Sanjuan <jorge.sanjuan@codethink.co.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-12Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM updates from Paolo Bonzini: "Small update for KVM: ARM: - lazy context-switching of FPSIMD registers on arm64 - "split" regions for vGIC redistributor s390: - cleanups for nested - clock handling - crypto - storage keys - control register bits x86: - many bugfixes - implement more Hyper-V super powers - implement lapic_timer_advance_ns even when the LAPIC timer is emulated using the processor's VMX preemption timer. - two security-related bugfixes at the top of the branch" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (79 commits) kvm: fix typo in flag name kvm: x86: use correct privilege level for sgdt/sidt/fxsave/fxrstor access KVM: x86: pass kvm_vcpu to kvm_read_guest_virt and kvm_write_guest_virt_system KVM: x86: introduce linear_{read,write}_system kvm: nVMX: Enforce cpl=0 for VMX instructions kvm: nVMX: Add support for "VMWRITE to any supported field" kvm: nVMX: Restrict VMX capability MSR changes KVM: VMX: Optimize tscdeadline timer latency KVM: docs: nVMX: Remove known limitations as they do not exist now KVM: docs: mmu: KVM support exposing SLAT to guests kvm: no need to check return value of debugfs_create functions kvm: Make VM ioctl do valloc for some archs kvm: Change return type to vm_fault_t KVM: docs: mmu: Fix link to NPT presentation from KVM Forum 2008 kvm: x86: Amend the KVM_GET_SUPPORTED_CPUID API documentation KVM: x86: hyperv: declare KVM_CAP_HYPERV_TLBFLUSH capability KVM: x86: hyperv: simplistic HVCALL_FLUSH_VIRTUAL_ADDRESS_{LIST,SPACE}_EX implementation KVM: x86: hyperv: simplistic HVCALL_FLUSH_VIRTUAL_ADDRESS_{LIST,SPACE} implementation KVM: introduce kvm_make_vcpus_request_mask() API KVM: x86: hyperv: do rep check for each hypercall separately ...
2018-06-12netfilter: nft_dynset: do not reject set updates with NFT_SET_EVALPablo Neira Ayuso
NFT_SET_EVAL is signalling the kernel that this sets can be updated from the evaluation path, even if there are no expressions attached to the element. Otherwise, set updates with no expressions fail. Update description to describe the right semantics. Fixes: 22fe54d5fefc ("netfilter: nf_tables: add support for dynamic set updates") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-06-12kvm: fix typo in flag nameMichael S. Tsirkin
KVM_X86_DISABLE_EXITS_HTL really refers to exit on halt. Obviously a typo: should be named KVM_X86_DISABLE_EXITS_HLT. Fixes: caa057a2cad ("KVM: X86: Provide a capability to disable HLT intercepts") Cc: stable@vger.kernel.org Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-12virtio: update the comments for transport featuresTiwei Bie
The existing comments for transport features are outdated. So update them to address the latest changes in the spec. Suggested-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Tiwei Bie <tiwei.bie@intel.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-06-12virtio_pci: support enabling VFsTiwei Bie
There is a new feature bit allocated in virtio spec to support SR-IOV (Single Root I/O Virtualization): https://github.com/oasis-tcs/virtio-spec/issues/11 This patch enables the support for this feature bit in virtio driver. Signed-off-by: Tiwei Bie <tiwei.bie@intel.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-06-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter/IPVS fixes for net The following patchset contains Netfilter/IPVS fixes for your net tree: 1) Reject non-null terminated helper names from xt_CT, from Gao Feng. 2) Fix KASAN splat due to out-of-bound access from commit phase, from Alexey Kodanev. 3) Missing conntrack hook registration on IPVS FTP helper, from Julian Anastasov. 4) Incorrect skbuff allocation size in bridge nft_reject, from Taehee Yoo. 5) Fix inverted check on packet xmit to non-local addresses, also from Julian. 6) Fix ebtables alignment compat problems, from Alin Nastac. 7) Hook mask checks are not correct in xt_set, from Serhey Popovych. 8) Fix timeout listing of element in ipsets, from Jozsef. 9) Cap maximum timeout value in ipset, also from Jozsef. 10) Don't allow family option for hash:mac sets, from Florent Fourcot. 11) Restrict ebtables to work with NFPROTO_BRIDGE targets only, this Florian. 12) Another bug reported by KASAN in the rbtree set backend, from Taehee Yoo. 13) Missing __IPS_MAX_BIT update doesn't include IPS_OFFLOAD_BIT. From Gao Feng. 14) Missing initialization of match/target in ebtables, from Florian Westphal. 15) Remove useless nft_dup.h file in include path, from C. Labbe. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-11Merge tag 'rpmsg-v4.18' of git://github.com/andersson/remoteprocLinus Torvalds
Pull rpmsg updates from Bjorn Andersson: "This migrates rpmsg to use SPDX license headers and fixes a use-after-free in SMD" * tag 'rpmsg-v4.18' of git://github.com/andersson/remoteproc: rpmsg: smd: do not use mananged resources for endpoints and channels rpmsg: char: Switch to SPDX license identifier rpmsg: glink: Switch to SPDX license identifier rpmsg: smd: Switch to SPDX license identifier rpmsg: virtio_rpmsg_bus: Switch to SPDX license identifier rpmsg: Switch to SPDX license identifier rpmsg: qcom_smd: Access APCS through mailbox framework rpmsg: Add driver_override device attribute for rpmsg_device
2018-06-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix several bpfilter/UMH bugs, in particular make the UMH build not depend upon X86 specific Kconfig symbols. From Alexei Starovoitov. 2) Fix handling of modified context pointer in bpf verifier, from Daniel Borkmann. 3) Kill regression in ifdown/ifup sequences for hv_netvsc driver, from Dexuan Cui. 4) When the bonding primary member name changes, we have to re-evaluate the bond->force_primary setting, from Xiangning Yu. 5) Eliminate possible padding beyone end of SKB in cdc_ncm driver, from Bjørn Mork. 6) RX queue length reported for UDP sockets in procfs and socket diag are inaccurate, from Paolo Abeni. 7) Fix br_fdb_find_port() locking, from Petr Machata. 8) Limit sk_rcvlowat values properly in TCP, from Soheil Hassas Yeganeh. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (23 commits) tcp: limit sk_rcvlowat by the maximum receive buffer net: phy: dp83822: use BMCR_ANENABLE instead of BMSR_ANEGCAPABLE for DP83620 socket: close race condition between sock_close() and sockfs_setattr() net: bridge: Fix locking in br_fdb_find_port() udp: fix rx queue len reported by diag and proc interface cdc_ncm: avoid padding beyond end of skb net/sched: act_simple: fix parsing of TCA_DEF_DATA net: fddi: fix a possible null-ptr-deref net: aquantia: fix unsigned numvecs comparison with less than zero net: stmmac: fix build failure due to missing COMMON_CLK dependency bpfilter: fix race in pipe access bpf, xdp: fix crash in xdp_umem_unaccount_pages xsk: Fix umem fill/completion queue mmap on 32-bit tools/bpf: fix selftest get_cgroup_id_user bpfilter: fix OUTPUT_FORMAT umh: fix race condition net: mscc: ocelot: Fix uninitialized error in ocelot_netdevice_event() bonding: re-evaluate force_primary when the primary slave name changes ip_tunnel: Fix name string concatenate in __ip_tunnel_create() hv_netvsc: Fix a network regression after ifdown/ifup ...
2018-06-10Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: "This is mostly updates to the usual drivers: ufs, qedf, mpt3sas, lpfc, xfcp, hisi_sas, cxlflash, qla2xxx. In the absence of Nic, we're also taking target updates which are mostly minor except for the tcmu refactor. The only real core change to worry about is the removal of high page bouncing (in sas, storvsc and iscsi). This has been well tested and no problems have shown up so far" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (268 commits) scsi: lpfc: update driver version to 12.0.0.4 scsi: lpfc: Fix port initialization failure. scsi: lpfc: Fix 16gb hbas failing cq create. scsi: lpfc: Fix crash in blk_mq layer when executing modprobe -r lpfc scsi: lpfc: correct oversubscription of nvme io requests for an adapter scsi: lpfc: Fix MDS diagnostics failure (Rx < Tx) scsi: hisi_sas: Mark PHY as in reset for nexus reset scsi: hisi_sas: Fix return value when get_free_slot() failed scsi: hisi_sas: Terminate STP reject quickly for v2 hw scsi: hisi_sas: Add v2 hw force PHY function for internal ATA command scsi: hisi_sas: Include TMF elements in struct hisi_sas_slot scsi: hisi_sas: Try wait commands before before controller reset scsi: hisi_sas: Init disks after controller reset scsi: hisi_sas: Create a scsi_host_template per HW module scsi: hisi_sas: Reset disks when discovered scsi: hisi_sas: Add LED feature for v3 hw scsi: hisi_sas: Change common allocation mode of device id scsi: hisi_sas: change slot index allocation mode scsi: hisi_sas: Introduce hisi_sas_phy_set_linkrate() scsi: hisi_sas: fix a typo in hisi_sas_task_prep() ...
2018-06-10Merge branch 'core-rseq-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull restartable sequence support from Thomas Gleixner: "The restartable sequences syscall (finally): After a lot of back and forth discussion and massive delays caused by the speculative distraction of maintainers, the core set of restartable sequences has finally reached a consensus. It comes with the basic non disputed core implementation along with support for arm, powerpc and x86 and a full set of selftests It was exposed to linux-next earlier this week, so it does not fully comply with the merge window requirements, but there is really no point to drag it out for yet another cycle" * 'core-rseq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: rseq/selftests: Provide Makefile, scripts, gitignore rseq/selftests: Provide parametrized tests rseq/selftests: Provide basic percpu ops test rseq/selftests: Provide basic test rseq/selftests: Provide rseq library selftests/lib.mk: Introduce OVERRIDE_TARGETS powerpc: Wire up restartable sequences system call powerpc: Add syscall detection for restartable sequences powerpc: Add support for restartable sequences x86: Wire up restartable sequence system call x86: Add support for restartable sequences arm: Wire up restartable sequences system call arm: Add syscall detection for restartable sequences arm: Add restartable sequences support rseq: Introduce restartable sequences system call uapi/headers: Provide types_32_64.h
2018-06-10iio: Add channel for Position RelativeEugen Hristev
Add new channel type for relative position on a pad. These type of analog sensor offers the position of a pen on a touchpad, and is represented as a voltage, which can be converted to a position on X and Y axis on the pad. The channel will hand the relative position on the pad in both directions. The channel can then be consumed by a touchscreen driver or read as-is for a raw indication of the touchpen on a touchpad. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-06-09Merge tag 'staging-4.18-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/IIO updates from Greg KH: "Here is the big staging and IIO driver update for 4.18-rc1. It was delayed as I wanted to make sure the final driver deletions did not cause any major merge issues, and all now looks good. There are a lot of patches here, just over 1000. The diffstat summary shows the major changes here: 1007 files changed, 16828 insertions(+), 227770 deletions(-) Because of this, we might be close to shrinking the overall kernel source code size for two releases in a row. There was loads of work in this release cycle, primarily: - tons of ks7010 driver cleanups - lots of mt7621 driver fixes and cleanups - most driver cleanups - wilc1000 fixes and cleanups - lots and lots of IIO driver cleanups and new additions - debugfs cleanups for all staging drivers - lots of other staging driver cleanups and fixes, the shortlog has the full details. but the big user-visable things here are the removal of 3 chunks of code: - ncpfs and ipx were removed on schedule, no one has cared about this code since it moved to staging last year, and if it needs to come back, it can be reverted. - lustre file system is removed. I've ranted at the lustre developers about once a year for the past 5 years, with no real forward progress at all to clean things up and get the code into the "real" part of the kernel. Given that the lustre developers continue to work on an external tree and try to port those changes to the in-kernel tree every once in a while, this whole thing really really is not working out at all. So I'm deleting it so that the developers can spend the time working in their out-of-tree location and get things cleaned up properly to get merged into the tree correctly at a later date. Because of these file removals, you will have merge issues on some of these files (2 in the ipx code, 1 in the ncpfs code, and 1 in the atomisp driver). Just delete those files, it's a simple merge :) All of this has been in linux-next for a while with no reported problems" * tag 'staging-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1011 commits) staging: ipx: delete it from the tree ncpfs: remove uapi .h files ncpfs: remove Documentation ncpfs: remove compat functionality staging: ncpfs: delete it staging: lustre: delete the filesystem from the tree. staging: vc04_services: no need to save the log debufs dentries staging: vc04_services: vchiq_debugfs_log_entry can be a void * staging: vc04_services: remove struct vchiq_debugfs_info staging: vc04_services: move client dbg directory into static variable staging: vc04_services: remove odd vchiq_debugfs_top() wrapper staging: vc04_services: no need to check debugfs return values staging: mt7621-gpio: reorder includes alphabetically staging: mt7621-gpio: change gc_map to don't use pointers staging: mt7621-gpio: use GPIOF_DIR_OUT and GPIOF_DIR_IN macros instead of custom values staging: mt7621-gpio: change 'to_mediatek_gpio' to make just a one line return staging: mt7621-gpio: dt-bindings: update documentation for #interrupt-cells property staging: mt7621-gpio: update #interrupt-cells for the gpio node staging: mt7621-gpio: dt-bindings: complete documentation for the gpio staging: mt7621-dts: add missing properties to gpio node ...