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2017-04-18Btrfs: consistent usage of types in balance_argsHans van Kranenburg1-5/+5
The btrfs_balance_args are only used for the balance ioctl, so use __u instead of __le here for consistency. The __le usage was introduced in bc3094673f22d and dee32d0ac3719 and was probably a result of copy/pasting when the code was written. The usage of __le did not break anything, but it's unnecessary. Also, this change makes the code less confusing for the careful reader. Signed-off-by: Hans van Kranenburg <hans.van.kranenburg@mendix.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-04-17Remove compat_sys_getdents64()Al Viro1-2/+1
Unlike normal compat syscall variants, it is needed only for biarch architectures that have different alignement requirements for u64 in 32bit and 64bit ABI *and* have __put_user() that won't handle a store of 64bit value at 32bit-aligned address. We used to have one such (ia64), but its biarch support has been gone since 2010 (after being broken in 2008, which went unnoticed since nobody had been using it). It had escaped removal at the same time only because back in 2004 a patch that switched several syscalls on amd64 from private wrappers to generic compat ones had switched to use of compat_sys_getdents64(), which hadn't needed (or used) a compat wrapper on amd64. Let's bury it - it's at least 7 years overdue. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-04-17nbd: add a flag to destroy an nbd device on disconnectJosef Bacik1-1/+5
For ease of management it would be nice for users to specify that the device node for a nbd device is destroyed once it is disconnected and there are no more users. Add a client flag and enable this operation to happen. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-17nbd: add a status netlink commandJosef Bacik1-0/+25
Allow users to query the status of existing nbd devices. Right now this only returns whether or not the device is connected, but could be extended in the future to include more information. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-17nbd: handle dead connectionsJosef Bacik1-0/+1
Sometimes we like to upgrade our server without making all of our clients freak out and reconnect. This patch provides a way to specify a dead connection timeout to allow us to pause all requests and wait for new connections to be opened. With this in place I can take down the nbd server for less than the dead connection timeout time and bring it back up and everything resumes gracefully. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-17nbd: multicast dead link notificationsJosef Bacik1-2/+4
Provide a mechanism to notify userspace that there's been a link problem on a NBD device. This will allow userspace to re-establish a connection and provide the new socket to the device without disrupting the device. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-17nbd: add a reconfigure netlink commandJosef Bacik1-0/+1
We want to be able to reconnect dead connections to existing block devices, so add a reconfigure netlink command. We will also allow users to change their timeout on the fly, but everything else will require a disconnect and reconnect. You won't be able to add more connections either, simply replace dead connections with new more lively connections. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-17nbd: add a basic netlink interfaceJosef Bacik1-0/+69
The existing ioctl interface for configuring NBD devices is a bit cumbersome and hard to extend. The other problem is we leave a userspace app sitting in it's syscall until the device disconnects, which is less than ideal. This patch introduces a netlink interface for adding and disconnecting nbd devices. This has the benefits of being easily extendable without breaking older userspace applications, and allows us to configure a nbd device without leaving a userspace app sitting waiting for the device to disconnect. With this interface we also gain the ability to configure more devices than are preallocated at insmod time. We also have gained the ability to not specify a particular device and be provided one for us so that userspace doesn't need to find a free device to configure. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-16lightnvm: allow to init targets on factory modeJavier González1-0/+4
Target initialization has two responsibilities: creating the target partition and instantiating the target. This patch enables to create a factory partition (e.g., do not trigger recovery on the given target). This is useful for target development and for being able to restore the device state at any moment in time without requiring a full-device erase. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <matias@cnexlabs.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller3-3/+5
Conflicts were simply overlapping changes. In the net/ipv4/route.c case the code had simply moved around a little bit and the same fix was made in both 'net' and 'net-next'. In the net/sched/sch_generic.c case a fix in 'net' happened at the same time that a new argument was added to qdisc_hash_add(). Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-15drm/i915: Copy user requested buffers into the error stateChris Wilson1-1/+14
Introduce a new execobject.flag (EXEC_OBJECT_CAPTURE) that userspace may use to indicate that it wants the contents of this buffer preserved in the error state (/sys/class/drm/cardN/error) following a GPU hang involving this batch. Use this at your discretion, the contents of the error state. although compressed, are allocated with GFP_ATOMIC (i.e. limited) and kept for all eternity (until the error state is destroyed). Based on an earlier patch by Ben Widawsky <ben@bwidawsk.net> Testcase: igt/gem_exec_capture Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Matt Turner <mattst88@gmail.com> Acked-by: Ben Widawsky <ben@bwidawsk.net> Acked-by: Matt Turner <mattst88@gmail.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170415093902.22581-1-chris@chris-wilson.co.uk
2017-04-15netfilter: kill the fake untracked conntrack objectsFlorian Westphal1-2/+4
resurrect an old patch from Pablo Neira to remove the untracked objects. Currently, there are four possible states of an skb wrt. conntrack. 1. No conntrack attached, ct is NULL. 2. Normal (kmem cache allocated) ct attached. 3. a template (kmalloc'd), not in any hash tables at any point in time 4. the 'untracked' conntrack, a percpu nf_conn object, tagged via IPS_UNTRACKED_BIT in ct->status. Untracked is supposed to be identical to case 1. It exists only so users can check -m conntrack --ctstate UNTRACKED vs. -m conntrack --ctstate INVALID e.g. attempts to set connmark on INVALID or UNTRACKED conntracks is supposed to be a no-op. Thus currently we need to check ct == NULL || nf_ct_is_untracked(ct) in a lot of places in order to avoid altering untracked objects. The other consequence of the percpu untracked object is that all -j NOTRACK (and, later, kfree_skb of such skbs) result in an atomic op (inc/dec the untracked conntracks refcount). This adds a new kernel-private ctinfo state, IP_CT_UNTRACKED, to make the distinction instead. The (few) places that care about packet invalid (ct is NULL) vs. packet untracked now need to test ct == NULL vs. ctinfo == IP_CT_UNTRACKED, but all other places can omit the nf_ct_is_untracked() check. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-04-15[media] videodev.h: add V4L2_CTRL_FLAG_MODIFY_LAYOUTHans Verkuil1-0/+1
Add new flag to indicate that changing this control will change the buffer/mediabus layout as well. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-15[media] v4l: Define a pixel format for the R-Car VSP1 2-D histogram engineNiklas Söderlund1-1/+2
The format is used on the R-Car VSP1 video queues that carry 2-D histogram statistics data. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-15[media] v4l: Define a pixel format for the R-Car VSP1 1-D histogram engineLaurent Pinchart1-0/+3
The format is used on the R-Car VSP1 video queues that carry 1-D histogram statistics data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-15[media] v4l: Add metadata buffer type and formatLaurent Pinchart1-0/+13
The metadata buffer type is used to transfer metadata between userspace and kernelspace through a V4L2 buffers queue. It comes with a new metadata capture capability and format description. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> [hans.verkuil@cisco.com: removed left-over 'experimental' note] [hans.verkuil@cisco.com: add newline after _v4l2-meta-format label] Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-15Merge branch 'for-linus' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: "Just a small update to xpad driver to recognize yet another gamepad, and another change making sure userio.h is exported" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: xpad - add support for Razer Wildcat gamepad uapi: add missing install of userio.h
2017-04-14Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds1-1/+1
Pull virtio fixes from Michael S. Tsirkin: "virtio oops fixes The virtio pci rework using shared interrupts caused a lot of issues. We tried to fix them but run out of time. Revert for now, and revisit the issue for the next kernel. Luckily we are able to do this without loosing automatic interrupt NUMA affinity which was the main motivator for the rework" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio-pci: Remove affinity hint before freeing the interrupt Revert "virtio_pci: remove struct virtio_pci_vq_info" Revert "virtio_pci: use shared interrupts for virtqueues" Revert "virtio_pci: don't duplicate the msix_enable flag in struct pci_dev" Revert "virtio_pci: simplify MSI-X setup" Revert "virtio_pci: fix out of bound access for msix_names" MAINTAINERS: fix virtio file pattern virtio_console: fix uninitialized variable use virtio_net: clear MTU when out of range virtio: allow drivers to validate features virtio_net: enable big packets for large MTU values
2017-04-14xfrm: Add an IPsec hardware offloading APISteffen Klassert1-0/+8
This patch adds all the bits that are needed to do IPsec hardware offload for IPsec states and ESP packets. We add xfrmdev_ops to the net_device. xfrmdev_ops has function pointers that are needed to manage the xfrm states in the hardware and to do a per packet offloading decision. Joint work with: Ilan Tayari <ilant@mellanox.com> Guy Shapiro <guysh@mellanox.com> Yossi Kuperman <yossiku@mellanox.com> Signed-off-by: Guy Shapiro <guysh@mellanox.com> Signed-off-by: Ilan Tayari <ilant@mellanox.com> Signed-off-by: Yossi Kuperman <yossiku@mellanox.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2017-04-13netlink: allow sending extended ACK with cookie on successJohannes Berg1-0/+4
Now that we have extended error reporting and a new message format for netlink ACK messages, also extend this to be able to return arbitrary cookie data on success. This will allow, for example, nl80211 to not send an extra message for cookies identifying newly created objects, but return those directly in the ACK message. The cookie data size is currently limited to 20 bytes (since Jamal talked about using SHA1 for identifiers.) Thanks to Jamal Hadi Salim for bringing up this idea during the discussions. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-13netlink: extended ACK reportingJohannes Berg1-0/+32
Add the base infrastructure and UAPI for netlink extended ACK reporting. All "manual" calls to netlink_ack() pass NULL for now and thus don't get extended ACK reporting. Big thanks goes to Pablo Neira Ayuso for not only bringing up the whole topic at netconf (again) but also coming up with the nlattr passing trick and various other ideas. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Reviewed-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-13Merge branch 'for-4.11/libnvdimm' into for-4.12/daxDan Williams5-49/+25
2017-04-12switchtec: Add IOCTLs to the Switchtec driverLogan Gunthorpe1-0/+132
Add a couple of special IOCTLs to: * Inform userspace of firmware partition locations * Pass event counts and allow userspace to wait on events * Translate PFF numbers used by the switch to port numbers [Dan Carpenter <dan.carpenter@oracle.com>: fix off-by-one in ioctl_event_ctl()] Tested-by: Krishna Dhulipala <krishnad@fb.com> Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Stephen Bates <stephen.bates@microsemi.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Wei Zhang <wzhang@fb.com> Reviewed-by: Jens Axboe <axboe@fb.com>
2017-04-12drm/i915: Treat WC a separate cache domainChris Wilson1-0/+2
When discussing a new WC mmap, we based the interface upon the assumption that GTT was fully coherent. How naive! Commits 3b5724d702ef ("drm/i915: Wait for writes through the GTT to land before reading back") and ed4596ea992d ("drm/i915/guc: WA to address the Ringbuffer coherency issue") demonstrate that writes through the GTT are indeed delayed and may be overtaken by direct WC access. To be safe, if userspace is mixing WC mmaps with other potential GTT access (pwrite, GTT mmaps) it should use set_domain(WC). Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96563 Testcase: igt/gem_pwrite/small-gtt* Testcase: igt/drv_selftest/coherency Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170412110111.26626-2-chris@chris-wilson.co.uk
2017-04-11Merge tag 'kvm-s390-next-4.12-1' of ↵Radim Krčmář2-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux From: Christian Borntraeger <borntraeger@de.ibm.com> KVM: s390: features for 4.12 1. guarded storage support for guests This contains an s390 base Linux feature branch that is necessary to implement the KVM part 2. Provide an interface to implement adapter interruption suppression which is necessary for proper zPCI support 3. Use more defines instead of numbers 4. Provide logging for lazy enablement of runtime instrumentation
2017-04-11usb: gadget: f_fs: Fix ExtCompat documentation in uapi headerVincent Pelletier1-1/+1
The code was fixed in commit 53642399aa71 ("usb: gadget: f_fs: Fix wrong check on reserved1 wof OS_DESC_EXT_COMPAT") but the in-header documentation kept referencing 0 as the expected value. Reference 1 instead as per original commit message. Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-04-11Merge tag 'v4.11-rc6' into perf/core, to pick up fixesIngo Molnar1-2/+3
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-04-11Merge branch 'msm-next' of git://people.freedesktop.org/~robclark/linux into ↵Dave Airlie1-0/+1
drm-next Noteworthy changes this time: 1) 4k support for newer chips (ganging up hwpipes and mixers) 2) using OPP bindings for gpu 3) more prep work towards per-process pagetables * 'msm-next' of git://people.freedesktop.org/~robclark/linux: (47 commits) msm/drm: gpu: Dynamically locate the clocks from the device tree drm/msm: gpu: Use OPP tables if we can drm/msm: Hard code the GPU "slow frequency" drm/msm: Add MSM_PARAM_GMEM_BASE drm/msm: Reference count address spaces drm/msm: Make sure to detach the MMU during GPU cleanup drm/msm/mdp5: Enable 3D mux in mdp5_ctl drm/msm/mdp5: Reset CTL blend registers before configuring them drm/msm/mdp5: Assign 'right' mixer to CRTC state drm/msm/mdp5: Stage border out on base stage if CRTC has 2 LMs drm/msm/mdp5: Stage right side hwpipes on Right-side Layer Mixer drm/msm/mdp5: Prepare Layer Mixers for source split drm/msm/mdp5: Configure 'right' hwpipe drm/msm/mdp5: Assign a 'right hwpipe' to plane state drm/msm/mdp5: Create mdp5_hwpipe_mode_set drm/msm/mdp5: Add optional 'right' Layer Mixer in CRTC state drm/msm/mdp5: Add a CAP for Source Split drm/msm/mdp5: Remove mixer/intf pointers from mdp5_ctl drm/msm/mdp5: Start using parameters from CRTC state drm/msm/mdp5: Add more stuff to CRTC state ...
2017-04-11Merge tag 'drm-misc-next-2017-04-07' of ↵Dave Airlie2-3/+13
git://anongit.freedesktop.org/git/drm-misc into drm-next Last drm-misc-next pull req for 4.12 Core changes: - fb_helper checkpatch cleanup and simplified _add_one_connector() (Thierry) - drm_ioctl and drm_sysfs improved/gained documentation (Daniel) - [ABI] Repurpose reserved field in drm_event_vblank for crtc_id (Ander) - Plumb acquire ctx through legacy paths to avoid lock_all and legacy_backoff (Daniel) - Add connector_atomic_check to check conn constraints on modeset (Maarten) - Add drm_of_find_panel_or_bridge to remove boilerplate in drivers (Rob) Driver changes: - meson moved to drm-misc (Neil) - Added support for Amlogic GX SoCs in dw-hdmi (Neil) - Rockchip unbind actually cleans up the things bind initializes (Jeffy) - A couple misc fixes in virtio, dw-hdmi NOTE: this also includes a backmerge of drm-next as well rc5 (we needed vmwgfx as well as the new synopsys media formats) * tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc: (77 commits) Revert "drm: Don't allow interruptions when opening debugfs/crc" drm: Only take cursor locks when the cursor plane exists drm/vmwgfx: Fix fbdev emulation using legacy functions drm/rockchip: Shutdown all crtcs when unbinding drm drm/rockchip: Reorder drm bind/unbind sequence drm/rockchip: analogix_dp: Disable clock when unbinding drm/rockchip: vop: Unprepare clocks when unbinding drm/rockchip: vop: Enable pm domain before vop_initial drm/rockchip: cdn-dp: Don't unregister audio dev when unbinding drm/rockchip: cdn-dp: Don't try to release firmware when not loaded drm: bridge: analogix: Destroy connector & encoder when unbinding drm: bridge: analogix: Disable clock when unbinding drm: bridge: analogix: Unregister dp aux when unbinding drm: bridge: analogix: Detach panel when unbinding analogix dp drm: Don't allow interruptions when opening debugfs/crc drm/virtio: don't leak bo on drm_gem_object_init failure drm: bridge: dw-hdmi: fix input format/encoding from plat_data drm: omap: use common OF graph helpers drm: convert drivers to use drm_of_find_panel_or_bridge drm: convert drivers to use of_graph_get_remote_node ...
2017-04-11Backmerge tag 'v4.11-rc6' into drm-nextDave Airlie1-2/+3
Linux 4.11-rc6 drm-misc needs 4.11-rc5, may as well fix conflicts with rc6.
2017-04-11Revert "virtio_pci: don't duplicate the msix_enable flag in struct pci_dev"Michael S. Tsirkin1-1/+1
This reverts commit 53a020c661741f3b87ad3ac6fa545088aaebac9b. The cleanup seems to be one of the changes that broke hybernation for some users. We are still not sure why but revert helps. Tested-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-04-10[media] videodev2.h: fix outdated commentHans Verkuil1-2/+1
The XV601/709 Y'CbCr encoding was changed to limited range, but the comment still indicates full range. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10[media] serio.h: add SERIO_RAINSHADOW_CEC IDHans Verkuil1-0/+1
Add a new serio ID for the RainShadow Tech USB HDMI CEC adapter. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10Merge 4.11-rc6 into driver-core-nextGreg Kroah-Hartman1-2/+3
We want the fixes in here as well for testing. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-10crypto: user - Prepare for CRYPTO_MAX_ALG_NAME expansionHerbert Xu1-5/+5
This patch hard-codes CRYPTO_MAX_NAME in the user-space API to 64, which is the current value of CRYPTO_MAX_ALG_NAME. This patch also replaces all remaining occurences of CRYPTO_MAX_ALG_NAME in the user-space API with CRYPTO_MAX_NAME. This way the user-space API will not be modified when we raise the value of CRYPTO_MAX_ALG_NAME. Furthermore, the code has been updated to handle names longer than the user-space API. They will be truncated. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Tested-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
2017-04-10[media] Documentation: Intel SR300 Depth camera INZI formatEvgeni Raikhel1-0/+1
Provide the frame structure and data layout of V4L2-PIX-FMT-INZI format utilized by Intel SR300 Depth camera. Signed-off-by: Evgeni Raikhel <evgeni.raikhel@intel.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10bpf: fix comment typoAlexander Alemayhu1-1/+1
o s/bpf_bpf_get_socket_cookie/bpf_get_socket_cookie Signed-off-by: Alexander Alemayhu <alexander@alemayhu.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10Revert "rtnl: Add support for netdev event to link messages"David S. Miller1-21/+0
This reverts commit def12888c161e6fec0702e5ec9c3962846e3a21d. As per discussion between Roopa Prabhu and David Ahern, it is advisable that we instead have the code collect the setlink triggered events into a bitmask emitted in the IFLA_EVENT netlink attribute. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-09KVM: arm/arm64: Add ARM user space interrupt signaling ABIAlexander Graf1-0/+8
We have 2 modes for dealing with interrupts in the ARM world. We can either handle them all using hardware acceleration through the vgic or we can emulate a gic in user space and only drive CPU IRQ pins from there. Unfortunately, when driving IRQs from user space, we never tell user space about events from devices emulated inside the kernel, which may result in interrupt line state changes, so we lose out on for example timer and PMU events if we run with user space gic emulation. Define an ABI to publish such device output levels to userspace. Reviewed-by: Alexander Graf <agraf@suse.de> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-04-08aspeed-lpc-ctrl: include linux/types.h for uapi headerArnd Bergmann1-0/+1
The newly added header file triggers a sanity check: usr/include/linux/aspeed-lpc-ctrl.h:44: found __[us]{8,16,32,64} type without #include <linux/types.h> We should include linux/types.h explicitly to ensure the header can be included from user space. Fixes: 6c4e97678501 ("drivers/misc: Add Aspeed LPC control driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08netlink: uapi: use hex numbers for NLM_F_* flagsJohannes Berg1-6/+6
It's rather confusing that the netlink message flags are numbered 1, 2, 4, 8, 16, 32, <unused>, 0x100. Make that more understandable by numbering the lower ones with hex constants as well. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-08New getsockopt option to get socket cookieChenbo Feng1-0/+2
Introduce a new getsockopt operation to retrieve the socket cookie for a specific socket based on the socket fd. It returns a unique non-decreasing cookie for each socket. Tested: https://android-review.googlesource.com/#/c/358163/ Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Chenbo Feng <fengc@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-08drm/msm: Add MSM_PARAM_GMEM_BASEJordan Crouse1-0/+1
User space needs to know where the GMEM whole starts so that they can set up the addressing correctly. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-04-07KVM: s390: introduce AIS capabilityYi Min Zhao1-0/+1
Introduce a cap to enable AIS facility bit, and add documentation for this capability. Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com> Signed-off-by: Fei Li <sherrylf@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2017-04-06Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into ↵Dave Airlie1-0/+8
drm-next Highlights: - Cooling device support from Russell, to allow GPU throttling on system thermal overload. - Explicit fencing support from Philipp, implemented in a similar way to drm/msm. * 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux: drm/etnaviv: submit support for out-fences drm/etnaviv: return GPU fence through the submit structure drm/etnaviv: submit support for in-fences drm/etnaviv: add etnaviv cooling device drm/etnaviv: switch to postclose drm/etnaviv: add lockdep assert to fence allocation
2017-04-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2-2/+5
Mostly simple cases of overlapping changes (adding code nearby, a function whose name changes, for example). Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-05ALSA: fireface: add hwdep interfaceTakashi Sakamoto2-2/+3
This commit adds hwdep interface so as the other drivers for audio and music units on IEEE 1394 have. This interface is designed for mixer/control applications. By using this interface, an application can get information about firewire node, can lock/unlock kernel streaming and can get notification at starting/stopping kernel streaming. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-04-05drm/tegra: Add tiling FB modifiersAlexandre Courbot1-0/+45
Add FB modifiers to allow user-space to specify that a surface is in one of the two tiling formats supported by Tegra chips, and add support in the tegradrm driver to handle them properly. This is necessary for the display controller to directly display buffers generated by the GPU. This feature is intended to replace the dedicated IOCTL enabled by TEGRA_STAGING and to provide a non-staging alternative to that solution. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-04-05rtnl: Add support for netdev event to link messagesVlad Yasevich1-0/+21
When netdev events happen, a rtnetlink_event() handler will send messages for every event in it's white list. These messages contain current information about a particular device, but they do not include the iformation about which event just happened. The consumer of the message has to try to infer this information. In some cases (ex: NETDEV_NOTIFY_PEERS), that is not possible. This patch adds a new extension to RTM_NEWLINK message called IFLA_EVENT that would have an encoding of the which event triggered this message. This would allow the the message consumer to easily determine if it is interested in a particular event or not. Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-05netlink/diag: report flags for netlink socketsAndrey Vagin1-0/+10
cb_running is reported in /proc/self/net/netlink and it is reported by the ss tool, when it gets information from the proc files. sock_diag is a new interface which is used instead of proc files, so it looks reasonable that this interface has to report no less information about sockets than proc files. We use these flags to dump and restore netlink sockets. Signed-off-by: Andrei Vagin <avagin@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>