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2019-06-26fs/adfs: correct disc record structureRussell King1-3/+3
Fill in some padding in the disc record structure, and add GCC packed and aligned attributes to ensure that it is correctly laid out. Signed-off-by: Russell King <[email protected]> Signed-off-by: Al Viro <[email protected]>
2019-06-26keys: Include target namespace in match criteriaDavid Howells1-0/+1
Currently a key has a standard matching criteria of { type, description } and this is used to only allow keys with unique criteria in a keyring. This means, however, that you cannot have keys with the same type and description but a different target namespace in the same keyring. This is a potential problem for a containerised environment where, say, a container is made up of some parts of its mount space involving netfs superblocks from two different network namespaces. This is also a problem for shared system management keyrings such as the DNS records keyring or the NFS idmapper keyring that might contain keys from different network namespaces. Fix this by including a namespace component in a key's matching criteria. Keyring types are marked to indicate which, if any, namespace is relevant to keys of that type, and that namespace is set when the key is created from the current task's namespace set. The capability bit KEYCTL_CAPS1_NS_KEY_TAG is set if the kernel is employing this feature. Signed-off-by: David Howells <[email protected]>
2019-06-26keys: Namespace keyring namesDavid Howells1-0/+1
Keyring names are held in a single global list that any process can pick from by means of keyctl_join_session_keyring (provided the keyring grants Search permission). This isn't very container friendly, however. Make the following changes: (1) Make default session, process and thread keyring names begin with a '.' instead of '_'. (2) Keyrings whose names begin with a '.' aren't added to the list. Such keyrings are system specials. (3) Replace the global list with per-user_namespace lists. A keyring adds its name to the list for the user_namespace that it is currently in. (4) When a user_namespace is deleted, it just removes itself from the keyring name list. The global keyring_name_lock is retained for accessing the name lists. This allows (4) to work. This can be tested by: # keyctl newring foo @s 995906392 # unshare -U $ keyctl show ... 995906392 --alswrv 65534 65534 \_ keyring: foo ... $ keyctl session foo Joined session keyring: 935622349 As can be seen, a new session keyring was created. The capability bit KEYCTL_CAPS1_NS_KEYRING_NAME is set if the kernel is employing this feature. Signed-off-by: David Howells <[email protected]> cc: Eric W. Biederman <[email protected]>
2019-06-26Merge tag 'v5.2-rc6' into asoc-5.3Mark Brown10-22/+43
Linux 5.2-rc6
2019-06-25media: uapi: Add MEDIA_BUS_FMT_RGB888_3X8 media bus formatPaul Cercueil1-1/+2
This patch adds MEDIA_BUS_FMT_RGB888_3X8, used for the GiantPlus GPM940B0 24-bit TFT panel, where the RGB components are transferred sequentially on a 8-bit bus. Signed-off-by: Paul Cercueil <[email protected]> Acked-by: Mauro Carvalho Chehab <[email protected]> Acked-by: Sakari Ailus <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2019-06-25RDMA/netlink: Audit policy settings for netlink attributesDoug Ledford1-4/+0
For all string attributes for which we don't currently accept the element as input, we only use it as output, set the string length to RDMA_NLDEV_ATTR_EMPTY_STRING which is defined as 1. That way we will only accept a null string for that element. This will prevent someone from writing a new input routine that uses the element without also updating the policy to have a valid value. Also while there, make sure the existing entries that are valid have the correct policy, if not, correct the policy. Remove unnecessary checks for nla_strlcpy() overflow once the policy has been set correctly. Signed-off-by: Doug Ledford <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2019-06-25Merge branch 'drm-next' into drm-next-5.3Alex Deucher8-5/+59
Backmerge drm-next and fix up conflicts due to drmP.h removal. Signed-off-by: Alex Deucher <[email protected]>
2019-06-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextPablo Neira Ayuso15-20/+78
Resolve conflict between d2912cb15bdd ("treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500") removing the GPL disclaimer and fe03d4745675 ("Update my email address") which updates Jozsef Kadlecsik's email. Signed-off-by: Pablo Neira Ayuso <[email protected]>
2019-06-24sched/uclamp: Extend sched_setattr() to support utilization clampingPatrick Bellasi2-10/+68
The SCHED_DEADLINE scheduling class provides an advanced and formal model to define tasks requirements that can translate into proper decisions for both task placements and frequencies selections. Other classes have a more simplified model based on the POSIX concept of priorities. Such a simple priority based model however does not allow to exploit most advanced features of the Linux scheduler like, for example, driving frequencies selection via the schedutil cpufreq governor. However, also for non SCHED_DEADLINE tasks, it's still interesting to define tasks properties to support scheduler decisions. Utilization clamping exposes to user-space a new set of per-task attributes the scheduler can use as hints about the expected/required utilization for a task. This allows to implement a "proactive" per-task frequency control policy, a more advanced policy than the current one based just on "passive" measured task utilization. For example, it's possible to boost interactive tasks (e.g. to get better performance) or cap background tasks (e.g. to be more energy/thermal efficient). Introduce a new API to set utilization clamping values for a specified task by extending sched_setattr(), a syscall which already allows to define task specific properties for different scheduling classes. A new pair of attributes allows to specify a minimum and maximum utilization the scheduler can consider for a task. Do that by validating the required clamp values before and then applying the required changes using _the_ same pattern already in use for __setscheduler(). This ensures that the task is re-enqueued with the new clamp values. Signed-off-by: Patrick Bellasi <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Alessio Balsini <[email protected]> Cc: Dietmar Eggemann <[email protected]> Cc: Joel Fernandes <[email protected]> Cc: Juri Lelli <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Morten Rasmussen <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Quentin Perret <[email protected]> Cc: Rafael J . Wysocki <[email protected]> Cc: Steve Muckle <[email protected]> Cc: Suren Baghdasaryan <[email protected]> Cc: Tejun Heo <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Todd Kjos <[email protected]> Cc: Vincent Guittot <[email protected]> Cc: Viresh Kumar <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2019-06-24sched/core: Allow sched_setattr() to use the current policyPatrick Bellasi1-1/+3
The sched_setattr() syscall mandates that a policy is always specified. This requires to always know which policy a task will have when attributes are configured and this makes it impossible to add more generic task attributes valid across different scheduling policies. Reading the policy before setting generic tasks attributes is racy since we cannot be sure it is not changed concurrently. Introduce the required support to change generic task attributes without affecting the current task policy. This is done by adding an attribute flag (SCHED_FLAG_KEEP_POLICY) to enforce the usage of the current policy. Add support for the SETPARAM_POLICY policy, which is already used by the sched_setparam() POSIX syscall, to the sched_setattr() non-POSIX syscall. Signed-off-by: Patrick Bellasi <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Alessio Balsini <[email protected]> Cc: Dietmar Eggemann <[email protected]> Cc: Joel Fernandes <[email protected]> Cc: Juri Lelli <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Morten Rasmussen <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Quentin Perret <[email protected]> Cc: Rafael J . Wysocki <[email protected]> Cc: Steve Muckle <[email protected]> Cc: Suren Baghdasaryan <[email protected]> Cc: Tejun Heo <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Todd Kjos <[email protected]> Cc: Vincent Guittot <[email protected]> Cc: Viresh Kumar <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2019-06-24io_uring: add support for sqe linksJens Axboe1-0/+1
With SQE links, we can create chains of dependent SQEs. One example would be queueing an SQE that's a read from one file descriptor, with the linked SQE being a write to another with the same set of buffers. An SQE link will not stall the pipeline, it'll just ensure that dependent SQEs aren't issued before the previous link has completed. Any error at submission or completion time will break the chain of SQEs. For completions, this also includes short reads or writes, as the next SQE could depend on the previous one being fully completed. Any SQE in a chain that gets canceled due to any of the above errors, will get an CQE fill with -ECANCELED as the error value. Signed-off-by: Jens Axboe <[email protected]>
2019-06-24binfmt_flat: remove the uapi <linux/flat.h> headerChristoph Hellwig1-59/+0
The split between the two flat.h files is completely arbitrary, and the uapi version even contains CONFIG_ ifdefs that can't work in userspace. The only userspace program known to use the header is elf2flt, and it ships with its own version of the combined header. Use the chance to move the <asm/flat.h> inclusion out of this file, as it is in no way needed for the format defintion, but just for the binfmt implementation. Signed-off-by: Christoph Hellwig <[email protected]> Tested-by: Vladimir Murzin <[email protected]> Reviewed-by: Vladimir Murzin <[email protected]> Signed-off-by: Greg Ungerer <[email protected]>
2019-06-23Merge 5.2-rc6 into usb-nextGreg Kroah-Hartman4-10/+7
We need the USB fixes in here too. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-06-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2-8/+2
Minor SPDX change conflict. Signed-off-by: David S. Miller <[email protected]>
2019-06-21drm/amdgpu: add pa_sc_tile_steering_override to drm_amdgpu_info_deviceHawking Zhang1-0/+2
the initial/default value of pa_sc_tile_steering_override need to be exposed to user mode driver Signed-off-by: Hawking Zhang <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2019-06-21media: videodev2.h: Fix shifting signed 32-bit value by 31 bits problemShuah Khan1-1/+1
Fix v4l2_fourcc define to use "U" cast to avoid shifting signed 32-bit value by 31 bits problem. This isn't a problem for kernel builds with gcc. This could be problem since this header is part of public API which could be included for builds using compilers that don't handle this condition safely resulting in undefined behavior. Signed-off-by: Shuah Khan <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2019-06-21media: media.h: Fix shifting signed 32-bit value by 31 bits problemShuah Khan1-1/+1
Fix MEDIA_ENT_ID_FLAG_NEXT to use "U" cast to avoid shifting signed 32-bit value by 31 bits problem. This isn't a problem for kernel builds with gcc. This could be problem since this header is part of public API which could be included for builds using compilers that don't handle this condition safely resulting in undefined behavior. Signed-off-by: Shuah Khan <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2019-06-21Merge tag 'v5.2-rc5' into patchworkMauro Carvalho Chehab1-1/+1
Linux 5.2-rc5 There are some media fixes on -rc5, so merge from it at media devel tree. * tag 'v5.2-rc5': (210 commits) Linux 5.2-rc5 x86/microcode, cpuhotplug: Add a microcode loader CPU hotplug callback Smack: Restore the smackfsdef mount option and add missing prefixes ftrace: Fix NULL pointer dereference in free_ftrace_func_mapper() module: Fix livepatch/ftrace module text permissions race tracing/uprobe: Fix obsolete comment on trace_uprobe_create() tracing/uprobe: Fix NULL pointer dereference in trace_uprobe_create() tracing: Make two symbols static tracing: avoid build warning with HAVE_NOP_MCOUNT tracing: Fix out-of-range read in trace_stack_print() gfs2: Fix rounding error in gfs2_iomap_page_prepare x86/kasan: Fix boot with 5-level paging and KASAN timekeeping: Repair ktime_get_coarse*() granularity Revert "ALSA: hda/realtek - Improve the headset mic for Acer Aspire laptops" mm/devm_memremap_pages: fix final page put race PCI/P2PDMA: track pgmap references per resource, not globally lib/genalloc: introduce chunk owners PCI/P2PDMA: fix the gen_pool_add_virt() failure path mm/devm_memremap_pages: introduce devm_memunmap_pages drivers/base/devres: introduce devm_release_action() ...
2019-06-21Merge tag 'spdx-5.2-rc6' of ↵Linus Torvalds2-8/+2
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx Pull still more SPDX updates from Greg KH: "Another round of SPDX updates for 5.2-rc6 Here is what I am guessing is going to be the last "big" SPDX update for 5.2. It contains all of the remaining GPLv2 and GPLv2+ updates that were "easy" to determine by pattern matching. The ones after this are going to be a bit more difficult and the people on the spdx list will be discussing them on a case-by-case basis now. Another 5000+ files are fixed up, so our overall totals are: Files checked: 64545 Files with SPDX: 45529 Compared to the 5.1 kernel which was: Files checked: 63848 Files with SPDX: 22576 This is a huge improvement. Also, we deleted another 20000 lines of boilerplate license crud, always nice to see in a diffstat" * tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (65 commits) treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 507 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 506 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 503 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 502 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 501 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 498 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 496 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 495 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 490 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 489 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 488 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 487 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 486 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 485 ...
2019-06-21netfilter: nf_tables: add support for matching IPv4 optionsStephen Suryaputra1-0/+2
This is the kernel change for the overall changes with this description: Add capability to have rules matching IPv4 options. This is developed mainly to support dropping of IP packets with loose and/or strict source route route options. Signed-off-by: Stephen Suryaputra <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
2019-06-21Merge tag 'drm-misc-next-2019-06-20' of ↵Dave Airlie3-0/+28
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for v5.3: UAPI Changes: - Give each dma-buf their own inode, add DMA_BUF_SET_NAME ioctl and a show_fdinfo handler. Cross-subsystem Changes: - Pull in the topic/remove-fbcon-notifiers branch: * remove fbdev notifier usage for fbcon, as prep work to clean up the fbcon locking * assorted locking checks in vt/console code * assorted notifier and cleanups in fbdev and backlight code Core Changes: - Make drm_debugfs_create_files() never fail. - add debug print to update_vblank_count. - Add DP_DPCD_QUIRK_NO_SINK_COUNT quirk. - Add todo item for drm_gem_objects. - Unexport drm_gem_(un)pin/v(un)map. - Document struct drm_cmdline_mode. - Rewrite the command handler for mode names, and add support to specify rotation, reflection and overscan. With a new selftest! :) - Fixes to drm/client for improving rotation support, and fixing variable scope. - Small fixes to self refresh helper. Driver Changes: - Add rockchip RK3328 support. - Assorted driver fixes to rockchip, vc4, rcar-du, vkms. - Expose panfrost performance counters through unstable ioctl's, hidden behind a module parameter. - Enumerate CRC sources list in vkms. - Add a basic kms driver for the Ingenic JZ47xx SoC, which will be expanded soon with more advanced features. - Suspend/resume fix for stm. Signed-off-by: Dave Airlie <[email protected]> From: Maarten Lankhorst <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2019-06-21Merge branch 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux ↵Dave Airlie1-1/+3
into drm-next - The coherent memory changes including mm changes. - Some vmwgfx debug fixes. - Removal of vmwgfx legacy security checks. Signed-off-by: Dave Airlie <[email protected]> From: Thomas Hellstrom <VMware> <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2019-06-20drm/amdgpu: add GDDR6 vram typeHuang Rui1-0/+1
New vram type. Signed-off-by: Huang Rui <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Reviewed-by: Hawking Zhang <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2019-06-20drm/amdgpu: add NV series gpu family idHuang Rui1-0/+1
Signed-off-by: Huang Rui <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Reviewed-by: Hawking Zhang <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2019-06-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller2-0/+8
Alexei Starovoitov says: ==================== pull-request: bpf-next 2019-06-19 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) new SO_REUSEPORT_DETACH_BPF setsocktopt, from Martin. 2) BTF based map definition, from Andrii. 3) support bpf_map_lookup_elem for xskmap, from Jonathan. 4) bounded loops and scalar precision logic in the verifier, from Alexei. ==================== Signed-off-by: David S. Miller <[email protected]>
2019-06-19net: sched: act_ctinfo: tidy UAPI definitionKevin Darbyshire-Bryant1-5/+0
Remove some enums from the UAPI definition that were only used internally and are NOT part of the UAPI. Signed-off-by: Kevin Darbyshire-Bryant <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2-8/+2
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Enrico Weigelt <[email protected]> Reviewed-by: Kate Stewart <[email protected]> Reviewed-by: Allison Randal <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-06-19USB: fix types in uapi includeStephen Rothwell1-2/+2
Signed-off-by: Stephen Rothwell <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-06-19act_ctinfo: Don't use BIT() in UAPI headers.David S. Miller1-2/+2
Use _BITUL() instead. Reported-by: Stephen Rothwell <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-06-19keys: Add capability-checking keyctl functionDavid Howells1-0/+14
Add a keyctl function that requests a set of capability bits to find out what features are supported. Signed-off-by: David Howells <[email protected]>
2019-06-19Merge remote-tracking branch 'drm/drm-next' into drm-misc-nextMaarten Lankhorst4-4/+28
remove-fbcon-notifiers topic branch is based on rc4, so we need a fresh backmerge of drm-next to pull it in. Signed-off-by: Maarten Lankhorst <[email protected]>
2019-06-19Merge v5.2-rc5 into drm-nextDaniel Vetter4-4/+28
Maarten needs -rc4 backmerged so he can pull in the fbcon notifier removal topic branch into drm-misc-next. Signed-off-by: Daniel Vetter <[email protected]>
2019-06-18RDMA: Report available cdevs through RDMA_NLDEV_CMD_GET_CHARDEVJason Gunthorpe1-0/+1
Update the struct ib_client for all modules exporting cdevs related to the ibdevice to also implement RDMA_NLDEV_CMD_GET_CHARDEV. All cdevs are now autoloadable and discoverable by userspace over netlink instead of relying on sysfs. uverbs also exposes the DRIVER_ID for drivers that are able to support driver id binding in rdma-core. Signed-off-by: Jason Gunthorpe <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2019-06-18RDMA: Add NLDEV_GET_CHARDEV to allow char dev discovery and autoloadJason Gunthorpe1-0/+14
Allow userspace to issue a netlink query against the ib_device for something like "uverbs" and get back the char dev name, inode major/minor, and interface ABI information for "uverbs0". Since we are now in netlink this can also trigger a module autoload to make the uverbs device come into existence. Largely this will let us replace searching and reading inside sysfs to setup devices, and provides an alternative (using driver_id) to device name based provider binding for things like rxe. Signed-off-by: Jason Gunthorpe <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2019-06-18ipoib: show VF broadcast addressDenis Kirjanov1-0/+5
in IPoIB case we can't see a VF broadcast address for but can see for PF Before: 11: ib1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2044 qdisc pfifo_fast state UP mode DEFAULT group default qlen 256 link/infiniband 80:00:00:66:fe:80:00:00:00:00:00:00:24:8a:07:03:00:a4:3e:7c brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff vf 0 MAC 14:80:00:00:66:fe, spoof checking off, link-state disable, trust off, query_rss off ... After: 11: ib1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2044 qdisc pfifo_fast state UP mode DEFAULT group default qlen 256 link/infiniband 80:00:00:66:fe:80:00:00:00:00:00:00:24:8a:07:03:00:a4:3e:7c brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff vf 0 link/infiniband 80:00:00:66:fe:80:00:00:00:00:00:00:24:8a:07:03:00:a4:3e:7c brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff, spoof checking off, link-state disable, trust off, query_rss off v1->v2: add the IFLA_VF_BROADCAST constant v2->v3: put IFLA_VF_BROADCAST at the end to avoid KABI breakage and set NLA_REJECT dev_setlink Signed-off-by: Denis Kirjanov <[email protected]> Acked-by: Doug Ledford <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-06-18drm/panfrost: Expose performance counters through unstable ioctlsBoris Brezillon1-0/+24
Expose performance counters through 2 driver specific ioctls: one to enable/disable the perfcnt block, and one to dump the counter values. There are discussions to expose global performance monitors (those counters that can't be retrieved on a per-job basis) in a consistent way, but this is likely to take time to settle on something that works for various HW/users. The ioctls are marked unstable so we can get rid of them when the time comes. We initally went for a debugfs-based interface, but this was making the transition to per-FD address space more complicated (we need to specify the namespace the GPU has to use when dumping the perf counters), hence the decision to switch back to driver specific ioctls which are passed the FD they operate on and thus will have a dedicated address space attached to them. Other than that, the implementation is pretty simple: it basically dumps all counters and copy the values to a userspace buffer. The parsing is left to userspace which has to know the specific layout that's used by the GPU (layout differs on a per-revision basis). Signed-off-by: Boris Brezillon <[email protected]> Acked-by: Alyssa Rosenzweig <[email protected]> Signed-off-by: Rob Herring <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2019-06-18iommu: Add padding to struct iommu_faultJean-Philippe Brucker1-0/+2
Ease future extensions of struct iommu_fault_page_request and struct iommu_fault_unrecoverable by adding a few bytes of padding. That way, a new field can be added to either of these structures by simply introducing a new flag. To extend it after the size limit is reached, a new fault reporting structure will have to be negotiated with userspace. With 56 bytes of padding, the total size of iommu_fault is 64 bytes and fits in a cache line on a lot of contemporary machines, while providing 16 and 24 bytes of extension to structures iommu_fault_page_request and iommu_fault_unrecoverable respectively. Signed-off-by: Jean-Philippe Brucker <[email protected]> Acked-by: Jacob Pan <[email protected]> Reviewed-by: Eric Auger <[email protected]> Signed-off-by: Joerg Roedel <[email protected]>
2019-06-18drm/vmwgfx: Add surface dirty-tracking callbacksThomas Hellstrom1-1/+3
Add the callbacks necessary to implement emulated coherent memory for surfaces. Add a flag to the gb_surface_create ioctl to indicate that surface memory should be coherent. Also bump the drm minor version to signal the availability of coherent surfaces. Signed-off-by: Thomas Hellstrom <[email protected]> Reviewed-by: Deepak Rawat <[email protected]>
2019-06-18USB: add usbfs ioctl to retrieve the connection parametersDmitry Torokhov1-0/+26
Recently usfbs gained availability to retrieve device speed, but there is sill no way to determine the bus number or list of ports the device is connected to when using usbfs. While this information can be obtained from sysfs, not all environments allow sysfs access. In a jailed environment a program might be simply given an opened file descriptor to usbfs device, and it is really important that all data can be gathered from said file descriptor. This patch introduces a new ioctl, USBDEVFS_CONNINFO_EX, which return extended connection information for the device, including the bus number, address, port list and speed. The API allows kernel to extend amount of data returned by the ioctl and userspace has an option of adjusting the amount of data it is willing to consume. A new capability, USBDEVFS_CAP_CONNINFO_EX, is introduced to help userspace in determining whether the kernel supports this new ioctl. Signed-off-by: Dmitry Torokhov <[email protected]> Acked-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-06-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller4-5/+26
Honestly all the conflicts were simple overlapping changes, nothing really interesting to report. Signed-off-by: David S. Miller <[email protected]>
2019-06-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2-2/+5
Pull networking fixes from David Miller: "Lots of bug fixes here: 1) Out of bounds access in __bpf_skc_lookup, from Lorenz Bauer. 2) Fix rate reporting in cfg80211_calculate_bitrate_he(), from John Crispin. 3) Use after free in psock backlog workqueue, from John Fastabend. 4) Fix source port matching in fdb peer flow rule of mlx5, from Raed Salem. 5) Use atomic_inc_not_zero() in fl6_sock_lookup(), from Eric Dumazet. 6) Network header needs to be set for packet redirect in nfp, from John Hurley. 7) Fix udp zerocopy refcnt, from Willem de Bruijn. 8) Don't assume linear buffers in vxlan and geneve error handlers, from Stefano Brivio. 9) Fix TOS matching in mlxsw, from Jiri Pirko. 10) More SCTP cookie memory leak fixes, from Neil Horman. 11) Fix VLAN filtering in rtl8366, from Linus Walluij. 12) Various TCP SACK payload size and fragmentation memory limit fixes from Eric Dumazet. 13) Use after free in pneigh_get_next(), also from Eric Dumazet. 14) LAPB control block leak fix from Jeremy Sowden" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (145 commits) lapb: fixed leak of control-blocks. tipc: purge deferredq list for each grp member in tipc_group_delete ax25: fix inconsistent lock state in ax25_destroy_timer neigh: fix use-after-free read in pneigh_get_next tcp: fix compile error if !CONFIG_SYSCTL hv_sock: Suppress bogus "may be used uninitialized" warnings be2net: Fix number of Rx queues used for flow hashing net: handle 802.1P vlan 0 packets properly tcp: enforce tcp_min_snd_mss in tcp_mtu_probing() tcp: add tcp_min_snd_mss sysctl tcp: tcp_fragment() should apply sane memory limits tcp: limit payload size of sacked skbs Revert "net: phylink: set the autoneg state in phylink_phy_change" bpf: fix nested bpf tracepoints with per-cpu data bpf: Fix out of bounds memory access in bpf_sk_storage vsock/virtio: set SOCK_DONE on peer shutdown net: dsa: rtl8366: Fix up VLAN filtering net: phylink: set the autoneg state in phylink_phy_change net: add high_order_alloc_disable sysctl/static key tcp: add tcp_tx_skb_cache sysctl ...
2019-06-17RDMA: Move rdma_node_type to uapi/Jason Gunthorpe1-0/+12
This enum is exposed over the sysfs file 'node_type' and over netlink via RDMA_NLDEV_ATTR_DEV_NODE_TYPE, so declare it in the uapi headers. Signed-off-by: Jason Gunthorpe <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2019-06-17netfilter: synproxy: add common uapi for SYNPROXY infrastructureFernando Fernandez Mancera2-11/+26
This new UAPI file is going to be used by the xt and nft common SYNPROXY infrastructure. It is needed to avoid duplicated code. Signed-off-by: Fernando Fernandez Mancera <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
2019-06-17Merge branch 'master' of git://blackhole.kfki.hu/nf-nextPablo Neira Ayuso1-1/+1
Jozsef Kadlecsik says: ==================== ipset patches for nf-next - Remove useless memset() calls, nla_parse_nested/nla_parse erase the tb array properly, from Florent Fourcot. - Merge the uadd and udel functions, the code is nicer this way, also from Florent Fourcot. - Add a missing check for the return value of a nla_parse[_deprecated] call, from Aditya Pakki. - Add the last missing check for the return value of nla_parse[_deprecated] call. - Fix error path and release the references properly in set_target_v3_checkentry(). - Fix memory accounting which is reported to userspace for hash types on resize, from Stefano Brivio. - Update my email address to [email protected]. The patch covers all places in the source tree where my [email protected] address could be found. ==================== Signed-off-by: Pablo Neira Ayuso <[email protected]>
2019-06-17netfilter: xt_owner: bail out with EINVAL in case of unsupported flagsPablo Neira Ayuso1-0/+5
Reject flags that are not supported with EINVAL. Signed-off-by: Pablo Neira Ayuso <[email protected]>
2019-06-17netfilter: nft_ct: add ct expectations supportStéphane Veyret1-1/+13
This patch allows to add, list and delete expectations via nft objref infrastructure and assigning these expectations via nft rule. This allows manual port triggering when no helper is defined to manage a specific protocol. For example, if I have an online game which protocol is based on initial connection to TCP port 9753 of the server, and where the server opens a connection to port 9876, I can set rules as follow: table ip filter { ct expectation mygame { protocol udp; dport 9876; timeout 2m; size 1; } chain input { type filter hook input priority 0; policy drop; tcp dport 9753 ct expectation set "mygame"; } chain output { type filter hook output priority 0; policy drop; udp dport 9876 ct status expected accept; } } Signed-off-by: Stéphane Veyret <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
2019-06-17Merge remote-tracking branch 'drm/drm-next' into drm-misc-nextMaarten Lankhorst1-4/+31
Pick up rc3 and rc4 and the merges from the other branches, we're a bit out of date. Signed-off-by: Maarten Lankhorst <[email protected]>
2019-06-15tcp: tcp_fragment() should apply sane memory limitsEric Dumazet1-0/+1
Jonathan Looney reported that a malicious peer can force a sender to fragment its retransmit queue into tiny skbs, inflating memory usage and/or overflow 32bit counters. TCP allows an application to queue up to sk_sndbuf bytes, so we need to give some allowance for non malicious splitting of retransmit queue. A new SNMP counter is added to monitor how many times TCP did not allow to split an skb if the allowance was exceeded. Note that this counter might increase in the case applications use SO_SNDBUF socket option to lower sk_sndbuf. CVE-2019-11478 : tcp_fragment, prevent fragmenting a packet when the socket is already using more than half the allowed space Signed-off-by: Eric Dumazet <[email protected]> Reported-by: Jonathan Looney <[email protected]> Acked-by: Neal Cardwell <[email protected]> Acked-by: Yuchung Cheng <[email protected]> Reviewed-by: Tyler Hicks <[email protected]> Cc: Bruce Curtis <[email protected]> Cc: Jonathan Lemon <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-06-15net: sched: remove NET_CLS_IND config optionJiri Pirko1-1/+1
This config option makes only couple of lines optional. Two small helpers and an int in couple of cls structs. Remove the config option and always compile this in. This saves the user from unexpected surprises when he adds a filter with ingress device match which is silently ignored in case the config option is not set. Signed-off-by: Jiri Pirko <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-06-15kbuild: re-implement Makefile.headersinst without recursionMasahiro Yamada1-3/+3
Since commit fcc8487d477a ("uapi: export all headers under uapi directories"), the headers in uapi directories are all exported by default although exceptional cases are still allowed by the syntax 'no-export-headers'. The traditional directory descending has been kept (in a somewhat hacky way), but it is actually unneeded. Get rid of it to simplify the code. Also, handle files one by one instead of the previous per-directory processing. This will emit much more log, but I like it. Signed-off-by: Masahiro Yamada <[email protected]>
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