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* Merge tag 'for-linus-4.9-2' of git://git.code.sf.net/p/openipmi/linux-ipmiLinus Torvalds2016-10-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull IPMI updates from Corey Minyard: "A small bug fix and a new driver for acting as an IPMI device. I was on vacation during the merge window (a long vacation) but this is a bug fix that should go in and a new driver that shouldn't hurt anything. This has been in linux-next for a month or so" * tag 'for-linus-4.9-2' of git://git.code.sf.net/p/openipmi/linux-ipmi: ipmi: fix crash on reading version from proc after unregisted bmc ipmi/bt-bmc: remove redundant return value check of platform_get_resource() ipmi/bt-bmc: add a dependency on ARCH_ASPEED ipmi: Fix ioremap error handling in bt-bmc ipmi: add an Aspeed BT IPMI BMC driver
| * ipmi: add an Aspeed BT IPMI BMC driverAlistair Popple2016-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a simple device driver to expose the iBT interface on Aspeed SOCs (AST2400 and AST2500) as a character device. Such SOCs are commonly used as BMCs (BaseBoard Management Controllers) and this driver implements the BMC side of the BT interface. The BT (Block Transfer) interface is used to perform in-band IPMI communication between a host and its BMC. Entire messages are buffered before sending a notification to the other end, host or BMC, that there is data to be read. Usually, the host emits requests and the BMC responses but the specification provides a mean for the BMC to send SMS Attention (BMC-to-Host attention or System Management Software attention) messages. For this purpose, the driver introduces a specific ioctl on the device: 'BT_BMC_IOCTL_SMS_ATN' that can be used by the system running on the BMC to signal the host of such an event. The device name defaults to '/dev/ipmi-bt-host' Signed-off-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Joel Stanley <joel@jms.id.au> [clg: - checkpatch fixes - added a devicetree binding documentation - replace 'bt_host' by 'bt_bmc' to reflect that the driver is the BMC side of the IPMI BT interface - renamed the device to 'ipmi-bt-host' - introduced a temporary buffer to copy_{to,from}_user - used platform_get_irq() - moved the driver under drivers/char/ipmi/ but kept it as a misc device - changed the compatible cell to "aspeed,ast2400-bt-bmc" ] Signed-off-by: Cédric Le Goater <clg@kaod.org> Acked-by: Arnd Bergmann <arnd@arndb.de> [clg: - checkpatch --strict fixes - removed the use of devm_iounmap, devm_kfree in cleanup paths - introduced an atomic-t to limit opens to 1 - introduced a mutex to protect write/read operations] Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Corey Minyard <cminyard@mvista.com>
* | Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2016-10-11
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull drm updates from Dave Airlie: "Core: - Fence destaging work - DRIVER_LEGACY to split off legacy drm drivers - drm_mm refactoring - Splitting drm_crtc.c into chunks and documenting better - Display info fixes - rbtree support for prime buffer lookup - Simple VGA DAC driver Panel: - Add Nexus 7 panel - More simple panels i915: - Refactoring GEM naming - Refactored vma/active tracking - Lockless request lookups - Better stolen memory support - FBC fixes - SKL watermark fixes - VGPU improvements - dma-buf fencing support - Better DP dongle support amdgpu: - Powerplay for Iceland asics - Improved GPU reset support - UVD/VEC powergating support for CZ/ST - Preinitialised VRAM buffer support - Virtual display support - Initial SI support - GTT rework - PCI shutdown callback support - HPD IRQ storm fixes amdkfd: - bugfixes tilcdc: - Atomic modesetting support mediatek: - AAL + GAMMA engine support - Hook up gamma LUT - Temporal dithering support imx: - Pixel clock from devicetree - drm bridge support for LVDS bridges - active plane reconfiguration - VDIC deinterlacer support - Frame synchronisation unit support - Color space conversion support analogix: - PSR support - Better panel on/off support rockchip: - rk3399 vop/crtc support - PSR support vc4: - Interlaced vblank timing - 3D rendering CPU overhead reduction - HDMI output fixes tda998x: - HDMI audio ASoC support sunxi: - Allwinner A33 support - better TCON support msm: - DT binding cleanups - Explicit fence-fd support sti: - remove sti415/416 support etnaviv: - MMUv2 refactoring - GC3000 support exynos: - Refactoring HDMI DCC/PHY - G2D pm regression fix - Page fault issues with wait for vblank There is no nouveau work in this tree, as Ben didn't get a pull request in, and he was fighting moving to atomic and adding mst support, so maybe best it waits for a cycle" * tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux: (1412 commits) drm/crtc: constify drm_crtc_index parameter drm/i915: Fix conflict resolution from backmerge of v4.8-rc8 to drm-next drm/i915/guc: Unwind GuC workqueue reservation if request construction fails drm/i915: Reset the breadcrumbs IRQ more carefully drm/i915: Force relocations via cpu if we run out of idle aperture drm/i915: Distinguish last emitted request from last submitted request drm/i915: Allow DP to work w/o EDID drm/i915: Move long hpd handling into the hotplug work drm/i915/execlists: Reinitialise context image after GPU hang drm/i915: Use correct index for backtracking HUNG semaphores drm/i915: Unalias obj->phys_handle and obj->userptr drm/i915: Just clear the mmiodebug before a register access drm/i915/gen9: only add the planes actually affected by ddb changes drm/i915: Allow PCH DPLL sharing regardless of DPLL_SDVO_HIGH_SPEED drm/i915/bxt: Fix HDMI DPLL configuration drm/i915/gen9: fix the watermark res_blocks value drm/i915/gen9: fix plane_blocks_per_line on watermarks calculations drm/i915/gen9: minimum scanlines for Y tile is not always 4 drm/i915/gen9: fix the WaWmMemoryReadLatency implementation drm/i915/kbl: KBL also needs to run the SAGV code ...
| * | uapi: add missing install of sync_file.hEmilio López2016-10-04
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | As part of the sync framework destaging, the sync_file.h header was moved, but an entry was not added on Kbuild to install it. This patch resolves this omission so that "make headers_install" installs this header. Fixes: 460bfc41fd52 ("dma-buf/sync_file: de-stage sync_file headers") Reported-by: Michael Ellerman <mpe@ellerman.id.au> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Emilio López <emilio.lopez@collabora.co.uk> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/20160927143142.8975-1-emilio.lopez@collabora.co.uk
* | Merge branch 'work.misc' of ↵Linus Torvalds2016-10-10
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull misc vfs updates from Al Viro: "Assorted misc bits and pieces. There are several single-topic branches left after this (rename2 series from Miklos, current_time series from Deepa Dinamani, xattr series from Andreas, uaccess stuff from from me) and I'd prefer to send those separately" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (39 commits) proc: switch auxv to use of __mem_open() hpfs: support FIEMAP cifs: get rid of unused arguments of CIFSSMBWrite() posix_acl: uapi header split posix_acl: xattr representation cleanups fs/aio.c: eliminate redundant loads in put_aio_ring_file fs/internal.h: add const to ns_dentry_operations declaration compat: remove compat_printk() fs/buffer.c: make __getblk_slow() static proc: unsigned file descriptors fs/file: more unsigned file descriptors fs: compat: remove redundant check of nr_segs cachefiles: Fix attempt to read i_blocks after deleting file [ver #2] cifs: don't use memcpy() to copy struct iov_iter get rid of separate multipage fault-in primitives fs: Avoid premature clearing of capabilities fs: Give dentry to inode_change_ok() instead of inode fuse: Propagate dentry down to inode_change_ok() ceph: Propagate dentry down to inode_change_ok() xfs: Propagate dentry down to inode_change_ok() ...
| * | posix_acl: uapi header splitAndreas Gruenbacher2016-09-27
| |/ | | | | | | | | | | | | | | Export the base definitions and the xattr representation of POSIX ACLs to user space. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* / bpf: introduce BPF_PROG_TYPE_PERF_EVENT program typeAlexei Starovoitov2016-09-02
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce BPF_PROG_TYPE_PERF_EVENT programs that can be attached to HW and SW perf events (PERF_TYPE_HARDWARE and PERF_TYPE_SOFTWARE correspondingly in uapi/linux/perf_event.h) The program visible context meta structure is struct bpf_perf_event_data { struct pt_regs regs; __u64 sample_period; }; which is accessible directly from the program: int bpf_prog(struct bpf_perf_event_data *ctx) { ... ctx->sample_period ... ... ctx->regs.ip ... } The bpf verifier rewrites the accesses into kernel internal struct bpf_perf_event_data_kern which allows changing struct perf_sample_data without affecting bpf programs. New fields can be added to the end of struct bpf_perf_event_data in the future. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds2016-08-06
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull virtio/vhost updates from Michael Tsirkin: - new vsock device support in host and guest - platform IOMMU support in host and guest, including compatibility quirks for legacy systems. - misc fixes and cleanups. * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: VSOCK: Use kvfree() vhost: split out vringh Kconfig vhost: detect 32 bit integer wrap around vhost: new device IOTLB API vhost: drop vringh dependency vhost: convert pre sorted vhost memory array to interval tree vhost: introduce vhost memory accessors VSOCK: Add Makefile and Kconfig VSOCK: Introduce vhost_vsock.ko VSOCK: Introduce virtio_transport.ko VSOCK: Introduce virtio_vsock_common.ko VSOCK: defer sock removal to transports VSOCK: transport-specific vsock_transport functions vhost: drop vringh dependency vop: pull in vhost Kconfig virtio: new feature to detect IOMMU device quirk balloon: check the number of available pages in leak balloon vhost: lockless enqueuing vhost: simplify work flushing
| * VSOCK: Introduce virtio_vsock_common.koAsias He2016-08-01
| | | | | | | | | | | | | | | | | | | | This module contains the common code and header files for the following virtio_transporto and vhost_vsock kernel modules. Signed-off-by: Asias He <asias@redhat.com> Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* | rapidio: add RapidIO channelized messaging driverAlexandre Bounine2016-08-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add channelized messaging driver to support native RapidIO messaging exchange between multiple senders/recipients on devices that use kernel RapidIO subsystem services. This device driver is the result of collaboration within the RapidIO.org Software Task Group (STG) between Texas Instruments, Prodrive Technologies, Nokia Networks, BAE and IDT. Additional input was received from other members of RapidIO.org. The objective was to create a character mode driver interface which exposes messaging capabilities of RapidIO endpoint devices (mports) directly to applications, in a manner that allows the numerous and varied RapidIO implementations to interoperate. This char mode device driver allows user-space applications to setup messaging communication channels using single shared RapidIO messaging mailbox. By default this driver uses RapidIO MBOX_1 (MBOX_0 is reserved for use by RIONET Ethernet emulation driver). [weiyj.lk@gmail.com: rapidio/rio_cm: fix return value check in riocm_init()] Link: http://lkml.kernel.org/r/1469198221-21970-1-git-send-email-alexandre.bounine@idt.com Link: http://lkml.kernel.org/r/1468952862-18056-1-git-send-email-alexandre.bounine@idt.com Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Tested-by: Barry Wood <barry.wood@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com> Cc: Barry Wood <barry.wood@idt.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'next' of ↵Linus Torvalds2016-07-29
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security subsystem updates from James Morris: "Highlights: - TPM core and driver updates/fixes - IPv6 security labeling (CALIPSO) - Lots of Apparmor fixes - Seccomp: remove 2-phase API, close hole where ptrace can change syscall #" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (156 commits) apparmor: fix SECURITY_APPARMOR_HASH_DEFAULT parameter handling tpm: Add TPM 2.0 support to the Nuvoton i2c driver (NPCT6xx family) tpm: Factor out common startup code tpm: use devm_add_action_or_reset tpm2_i2c_nuvoton: add irq validity check tpm: read burstcount from TPM_STS in one 32-bit transaction tpm: fix byte-order for the value read by tpm2_get_tpm_pt tpm_tis_core: convert max timeouts from msec to jiffies apparmor: fix arg_size computation for when setprocattr is null terminated apparmor: fix oops, validate buffer size in apparmor_setprocattr() apparmor: do not expose kernel stack apparmor: fix module parameters can be changed after policy is locked apparmor: fix oops in profile_unpack() when policy_db is not present apparmor: don't check for vmalloc_addr if kvzalloc() failed apparmor: add missing id bounds check on dfa verification apparmor: allow SYS_CAP_RESOURCE to be sufficient to prlimit another task apparmor: use list_next_entry instead of list_entry_next apparmor: fix refcount race when finding a child profile apparmor: fix ref count leak when profile sha1 hash is read apparmor: check that xindex is in trans_table bounds ...
| * tpm: Proxy driver for supporting multiple emulated TPMsStefan Berger2016-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements a proxy driver for supporting multiple emulated TPMs in a system. The driver implements a device /dev/vtpmx that is used to created a client device pair /dev/tpmX (e.g., /dev/tpm10) and a server side that is accessed using a file descriptor returned by an ioctl. The device /dev/tpmX is the usual TPM device created by the core TPM driver. Applications or kernel subsystems can send TPM commands to it and the corresponding server-side file descriptor receives these commands and delivers them to an emulated TPM. The driver retrievs the TPM 1.2 durations and timeouts. Since this requires the startup of the TPM, we send a startup for TPM 1.2 as well as TPM 2. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> CC: linux-kernel@vger.kernel.org CC: linux-doc@vger.kernel.org CC: linux-api@vger.kernel.org Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
* | uapi: export lirc.h headerMauro Carvalho Chehab2016-07-15
|/ | | | | | | | | | | | | | | | | This header contains the userspace API for lirc. This is a fixup for commit b7be755733dc ("[media] bz#75751: Move internal header file lirc.h to uapi/"). It moved the header to the right place, but it forgot to add it at Kbuild. So, despite being at uapi, it is not copied to the right place. Fixes: b7be755733dc44c72 ("[media] bz#75751: Move internal header file lirc.h to uapi/") Link: http://lkml.kernel.org/r/320c765d32bfc82c582e336d52ffe1026c73c644.1468439021.git.mchehab@s-opensource.com Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Cc: Alec Leamas <leamas.alec@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)Pablo Neira2016-05-10
| | | | | | | | | | | | | | | | | | | | | | | This is an initial implementation of a netdev driver for GTP datapath (GTP-U) v0 and v1, according to the GSM TS 09.60 and 3GPP TS 29.060 standards. This tunneling protocol is used to prevent subscribers from accessing mobile carrier core network infrastructure. This implementation requires a GGSN userspace daemon that implements the signaling protocol (GTP-C), such as OpenGGSN [1]. This userspace daemon updates the PDP context database that represents active subscriber sessions through a genetlink interface. For more context on this tunneling protocol, you can check the slides that were presented during the NetDev 1.1 [2]. Only IPv4 is supported at this time. [1] http://git.osmocom.org/openggsn/ [2] http://www.netdevconf.org/1.1/proceedings/slides/schultz-welte-osmocom-gtp.pdf Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* devlink: add missing install of headerstephen hemminger2016-04-11
| | | | | | | | The new devlink.h in uapi was not being installed by make headers_install Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* rapidio: add mport char device driverAlexandre Bounine2016-03-22
| | | | | | | | | | | | | | | | | | | | Add mport character device driver to provide user space interface to basic RapidIO subsystem operations. See included Documentation/rapidio/mport_cdev.txt for more details. [akpm@linux-foundation.org: fix printk warning on i386] [dan.carpenter@oracle.com: mport_cdev: fix some error codes] Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Tested-by: Barry Wood <barry.wood@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com> Cc: Barry Wood <barry.wood@idt.com> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2016-03-19
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from David Miller: "Highlights: 1) Support more Realtek wireless chips, from Jes Sorenson. 2) New BPF types for per-cpu hash and arrap maps, from Alexei Starovoitov. 3) Make several TCP sysctls per-namespace, from Nikolay Borisov. 4) Allow the use of SO_REUSEPORT in order to do per-thread processing of incoming TCP/UDP connections. The muxing can be done using a BPF program which hashes the incoming packet. From Craig Gallek. 5) Add a multiplexer for TCP streams, to provide a messaged based interface. BPF programs can be used to determine the message boundaries. From Tom Herbert. 6) Add 802.1AE MACSEC support, from Sabrina Dubroca. 7) Avoid factorial complexity when taking down an inetdev interface with lots of configured addresses. We were doing things like traversing the entire address less for each address removed, and flushing the entire netfilter conntrack table for every address as well. 8) Add and use SKB bulk free infrastructure, from Jesper Brouer. 9) Allow offloading u32 classifiers to hardware, and implement for ixgbe, from John Fastabend. 10) Allow configuring IRQ coalescing parameters on a per-queue basis, from Kan Liang. 11) Extend ethtool so that larger link mode masks can be supported. From David Decotigny. 12) Introduce devlink, which can be used to configure port link types (ethernet vs Infiniband, etc.), port splitting, and switch device level attributes as a whole. From Jiri Pirko. 13) Hardware offload support for flower classifiers, from Amir Vadai. 14) Add "Local Checksum Offload". Basically, for a tunneled packet the checksum of the outer header is 'constant' (because with the checksum field filled into the inner protocol header, the payload of the outer frame checksums to 'zero'), and we can take advantage of that in various ways. From Edward Cree" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1548 commits) bonding: fix bond_get_stats() net: bcmgenet: fix dma api length mismatch net/mlx4_core: Fix backward compatibility on VFs phy: mdio-thunder: Fix some Kconfig typos lan78xx: add ndo_get_stats64 lan78xx: handle statistics counter rollover RDS: TCP: Remove unused constant RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket net: smc911x: convert pxa dma to dmaengine team: remove duplicate set of flag IFF_MULTICAST bonding: remove duplicate set of flag IFF_MULTICAST net: fix a comment typo ethernet: micrel: fix some error codes ip_tunnels, bpf: define IP_TUNNEL_OPTS_MAX and use it bpf, dst: add and use dst_tclassid helper bpf: make skb->tc_classid also readable net: mvneta: bm: clarify dependencies cls_bpf: reset class and reuse major in da ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c ldmvsw: Add ldmvsw.c driver code ...
| * uapi: add MACsec bitsSabrina Dubroca2016-03-13
| | | | | | | | | | | | Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | gpio: add a userspace chardev ABI for GPIOsLinus Walleij2016-02-09
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A new chardev that is to be used for userspace GPIO access is added in this patch. It is intended to gradually replace the horribly broken sysfs ABI. Using a chardev has many upsides: - All operations are per-gpiochip, which is the actual device underlying the GPIOs, making us tie in to the kernel device model properly. - Hotpluggable GPIO controllers can come and go, as this kind of problem has been know to userspace for character devices since ages, and if a gpiochip handle is held in userspace we know we will break something, whereas the sysfs is stateless. - The one-value-per-file rule of sysfs is really hard to maintain when you want to twist more than one knob at a time, for example have in-kernel APIs to switch several GPIO lines at the same time, and this will be possible to do with a single ioctl() from userspace, saving a lot of context switching. We also need to add a new bus type for GPIO. This is necessary for example for userspace coldplug, where sysfs is traversed to find the boot-time device nodes and create the character devices in /dev. This new chardev ABI is *non* *optional* and can be counted on to be present in the future, emphasizing the preference of this ABI. The ABI only implements one single ioctl() to get the name and number of GPIO lines of a chip. Even this is debatable: see it as a minimal example for review. This ABI shall be ruthlessly reviewed and etched in stone. The old /sys/class/gpio is still optional to compile in, but will be deprecated. Unique device IDs are created using IDR, which is overkill and insanely scalable, but also well tested. Cc: Johan Hovold <johan@kernel.org> Cc: Michael Welling <mwelling@ieee.org> Cc: Markus Pargmann <mpa@pengutronix.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* Merge branch 'for-4.5/nvme' of git://git.kernel.dk/linux-blockLinus Torvalds2016-01-21
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NVMe updates from Jens Axboe: "Last branch for this series is the nvme changes. It's in a separate branch to avoid splitting too much between core and NVMe changes, since NVMe is still helping drive some blk-mq changes. That said, not a huge amount of core changes in here. The grunt of the work is the continued split of the code" * 'for-4.5/nvme' of git://git.kernel.dk/linux-block: (67 commits) uapi: update install list after nvme.h rename NVMe: Export NVMe attributes to sysfs group NVMe: Shutdown controller only for power-off NVMe: IO queue deletion re-write NVMe: Remove queue freezing on resets NVMe: Use a retryable error code on reset NVMe: Fix admin queue ring wrap nvme: make SG_IO support optional nvme: fixes for NVME_IOCTL_IO_CMD on the char device nvme: synchronize access to ctrl->namespaces nvme: Move nvme_freeze/unfreeze_queues to nvme core PCI/AER: include header file NVMe: Export namespace attributes to sysfs NVMe: Add pci error handlers block: remove REQ_NO_TIMEOUT flag nvme: merge iod and cmd_info nvme: meta_sg doesn't have to be an array nvme: properly free resources for cancelled command nvme: simplify completion handling nvme: special case AEN requests ...
| * uapi: update install list after nvme.h renameMike Frysinger2016-01-13
| | | | | | | | | | | | | | | | | | | | | | | | Commit 9d99a8dda154 ("nvme: move hardware structures out of the uapi version of nvme.h") renamed nvme.h to nvme_ioctl.h, but the uapi list still refers to nvme.h. People trying to install the headers hit a failure as the header no longer exists. Cc: stable@vger.kernel.org Signed-off-by: Mike Frysinger <vapier@gentoo.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
* | uapi: export ila.hstephen hemminger2015-12-11
|/ | | | | | | | The file ila.h used for lightweight tunnels is being used by iproute2 but is not exported yet. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-linus' of ↵Linus Torvalds2015-11-06
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "Items of note: - evdev users can now limit or mask the kind of events they will receive. This will allow applications such as power manager or network manager to only be woken when user presses special keys such as KEY_POWER or KEY_WIFI and not be bothered with ordinary key presses coming from keyboard - support for FocalTech FT6236 touchscreen controller - support for ROHM BU21023/24 touchscreen controller - edt-ft5x06 touchscreen driver got a face lift and can now be used with FT5506 - support for Google Fiber TV Box remote controls - improvements in xpad driver (with more to come) - several parport-based drivers have been switched to the new device model - other miscellaneous driver improvements" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (70 commits) HID: hid-gfrm: avoid warning for input_configured API change HID: hid-input: allow input_configured callback return errors Input: evdev - fix bug in checking duplicate clock change request Input: add userio module Input: evdev - add event-mask API Input: snvs_pwrkey - remove duplicated semicolon HID: hid-gfrm: Google Fiber TV Box remote controls Input: e3x0-button - update Kconfig description Input: tegra-kbc - drop use of IRQF_NO_SUSPEND flag Input: tegra-kbc - enable support for the standard "wakeup-source" property Input: xen - check return value of xenbus_printf Input: hp_sdc_rtc - fix y2038 problem in proc_show Input: nomadik-ske-keypad - fix a trivial typo Input: xpad - fix clash of presence handling with LED setting Input: edt-ft5x06 - work around FT5506 firmware bug Input: edt-ft5x06 - add support for FT5506 Input: edt-ft5x06 - add support for different max support points Input: edt-ft5x06 - use max support points to determine how much to read Input: rotary-encoder - add support for quarter-period mode Input: rotary-encoder - use of_property_read_bool ...
| * Input: add input-event-codes header fileHans de Goede2015-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | Add input-event-codes header file and move all type and axis defines there. The purpose of this new header file is to have a single canonical source for event-codes which can be used outside of C-code too. One example of such usage is the use of event-codes in devicetree source files. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* | uapi: add mpls_iptunnel.hstephen hemminger2015-10-19
|/ | | | | | | | Add missing rule to export mpls iptunnel header needed by iproute2 Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sys_membarrier(): system-wide memory barrier (generic, x86)Mathieu Desnoyers2015-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here is an implementation of a new system call, sys_membarrier(), which executes a memory barrier on all threads running on the system. It is implemented by calling synchronize_sched(). It can be used to distribute the cost of user-space memory barriers asymmetrically by transforming pairs of memory barriers into pairs consisting of sys_membarrier() and a compiler barrier. For synchronization primitives that distinguish between read-side and write-side (e.g. userspace RCU [1], rwlocks), the read-side can be accelerated significantly by moving the bulk of the memory barrier overhead to the write-side. The existing applications of which I am aware that would be improved by this system call are as follows: * Through Userspace RCU library (http://urcu.so) - DNS server (Knot DNS) https://www.knot-dns.cz/ - Network sniffer (http://netsniff-ng.org/) - Distributed object storage (https://sheepdog.github.io/sheepdog/) - User-space tracing (http://lttng.org) - Network storage system (https://www.gluster.org/) - Virtual routers (https://events.linuxfoundation.org/sites/events/files/slides/DPDK_RCU_0MQ.pdf) - Financial software (https://lkml.org/lkml/2015/3/23/189) Those projects use RCU in userspace to increase read-side speed and scalability compared to locking. Especially in the case of RCU used by libraries, sys_membarrier can speed up the read-side by moving the bulk of the memory barrier cost to synchronize_rcu(). * Direct users of sys_membarrier - core dotnet garbage collector (https://github.com/dotnet/coreclr/issues/198) Microsoft core dotnet GC developers are planning to use the mprotect() side-effect of issuing memory barriers through IPIs as a way to implement Windows FlushProcessWriteBuffers() on Linux. They are referring to sys_membarrier in their github thread, specifically stating that sys_membarrier() is what they are looking for. To explain the benefit of this scheme, let's introduce two example threads: Thread A (non-frequent, e.g. executing liburcu synchronize_rcu()) Thread B (frequent, e.g. executing liburcu rcu_read_lock()/rcu_read_unlock()) In a scheme where all smp_mb() in thread A are ordering memory accesses with respect to smp_mb() present in Thread B, we can change each smp_mb() within Thread A into calls to sys_membarrier() and each smp_mb() within Thread B into compiler barriers "barrier()". Before the change, we had, for each smp_mb() pairs: Thread A Thread B previous mem accesses previous mem accesses smp_mb() smp_mb() following mem accesses following mem accesses After the change, these pairs become: Thread A Thread B prev mem accesses prev mem accesses sys_membarrier() barrier() follow mem accesses follow mem accesses As we can see, there are two possible scenarios: either Thread B memory accesses do not happen concurrently with Thread A accesses (1), or they do (2). 1) Non-concurrent Thread A vs Thread B accesses: Thread A Thread B prev mem accesses sys_membarrier() follow mem accesses prev mem accesses barrier() follow mem accesses In this case, thread B accesses will be weakly ordered. This is OK, because at that point, thread A is not particularly interested in ordering them with respect to its own accesses. 2) Concurrent Thread A vs Thread B accesses Thread A Thread B prev mem accesses prev mem accesses sys_membarrier() barrier() follow mem accesses follow mem accesses In this case, thread B accesses, which are ensured to be in program order thanks to the compiler barrier, will be "upgraded" to full smp_mb() by synchronize_sched(). * Benchmarks On Intel Xeon E5405 (8 cores) (one thread is calling sys_membarrier, the other 7 threads are busy looping) 1000 non-expedited sys_membarrier calls in 33s =3D 33 milliseconds/call. * User-space user of this system call: Userspace RCU library Both the signal-based and the sys_membarrier userspace RCU schemes permit us to remove the memory barrier from the userspace RCU rcu_read_lock() and rcu_read_unlock() primitives, thus significantly accelerating them. These memory barriers are replaced by compiler barriers on the read-side, and all matching memory barriers on the write-side are turned into an invocation of a memory barrier on all active threads in the process. By letting the kernel perform this synchronization rather than dumbly sending a signal to every process threads (as we currently do), we diminish the number of unnecessary wake ups and only issue the memory barriers on active threads. Non-running threads do not need to execute such barrier anyway, because these are implied by the scheduler context switches. Results in liburcu: Operations in 10s, 6 readers, 2 writers: memory barriers in reader: 1701557485 reads, 2202847 writes signal-based scheme: 9830061167 reads, 6700 writes sys_membarrier: 9952759104 reads, 425 writes sys_membarrier (dyn. check): 7970328887 reads, 425 writes The dynamic sys_membarrier availability check adds some overhead to the read-side compared to the signal-based scheme, but besides that, sys_membarrier slightly outperforms the signal-based scheme. However, this non-expedited sys_membarrier implementation has a much slower grace period than signal and memory barrier schemes. Besides diminishing the number of wake-ups, one major advantage of the membarrier system call over the signal-based scheme is that it does not need to reserve a signal. This plays much more nicely with libraries, and with processes injected into for tracing purposes, for which we cannot expect that signals will be unused by the application. An expedited version of this system call can be added later on to speed up the grace period. Its implementation will likely depend on reading the cpu_curr()->mm without holding each CPU's rq lock. This patch adds the system call to x86 and to asm-generic. [1] http://urcu.so membarrier(2) man page: MEMBARRIER(2) Linux Programmer's Manual MEMBARRIER(2) NAME membarrier - issue memory barriers on a set of threads SYNOPSIS #include <linux/membarrier.h> int membarrier(int cmd, int flags); DESCRIPTION The cmd argument is one of the following: MEMBARRIER_CMD_QUERY Query the set of supported commands. It returns a bitmask of supported commands. MEMBARRIER_CMD_SHARED Execute a memory barrier on all threads running on the system. Upon return from system call, the caller thread is ensured that all running threads have passed through a state where all memory accesses to user-space addresses match program order between entry to and return from the system call (non-running threads are de facto in such a state). This covers threads from all pro=E2=80=90 cesses running on the system. This command returns 0. The flags argument needs to be 0. For future extensions. All memory accesses performed in program order from each targeted thread is guaranteed to be ordered with respect to sys_membarrier(). If we use the semantic "barrier()" to represent a compiler barrier forcing memory accesses to be performed in program order across the barrier, and smp_mb() to represent explicit memory barriers forcing full memory ordering across the barrier, we have the following ordering table for each pair of barrier(), sys_membarrier() and smp_mb(): The pair ordering is detailed as (O: ordered, X: not ordered): barrier() smp_mb() sys_membarrier() barrier() X X O smp_mb() X O O sys_membarrier() O O O RETURN VALUE On success, these system calls return zero. On error, -1 is returned, and errno is set appropriately. For a given command, with flags argument set to 0, this system call is guaranteed to always return the same value until reboot. ERRORS ENOSYS System call is not implemented. EINVAL Invalid arguments. Linux 2015-04-15 MEMBARRIER(2) Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Nicholas Miell <nmiell@comcast.net> Cc: Ingo Molnar <mingo@redhat.com> Cc: Alan Cox <gnomes@lxorguk.ukuu.org.uk> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: David Howells <dhowells@redhat.com> Cc: Pranith Kumar <bobby.prani@gmail.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* userfaultfd: uAPIAndrea Arcangeli2015-09-04
| | | | | | | | | | | | | | | | | | | | | | | Defines the uAPI of the userfaultfd, notably the ioctl numbers and protocol. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Cc: Sanidhya Kashyap <sanidhya.gatech@gmail.com> Cc: zhang.zhanghailiang@huawei.com Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Andres Lagar-Cavilla <andreslc@google.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Hugh Dickins <hughd@google.com> Cc: Peter Feiner <pfeiner@google.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "Huangpeng (Peter)" <peter.huangpeng@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* lwtunnel: export linux/lwtunnel.h to userspaceNicolas Dichtel2015-07-27
| | | | | | | | | | | Note also that include/linux/lwtunnel.h is not needed. CC: Thomas Graf <tgraf@suug.ch> CC: Roopa Prabhu <roopa@cumulusnetworks.com> Fixes: 499a24256862 ("lwtunnel: infrastructure for handling light weight tunnels like mpls") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'libnvdimm-for-4.2' of ↵Linus Torvalds2015-06-29
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm Pull libnvdimm subsystem from Dan Williams: "The libnvdimm sub-system introduces, in addition to the libnvdimm-core, 4 drivers / enabling modules: NFIT: Instantiates an "nvdimm bus" with the core and registers memory devices (NVDIMMs) enumerated by the ACPI 6.0 NFIT (NVDIMM Firmware Interface table). After registering NVDIMMs the NFIT driver then registers "region" devices. A libnvdimm-region defines an access mode and the boundaries of persistent memory media. A region may span multiple NVDIMMs that are interleaved by the hardware memory controller. In turn, a libnvdimm-region can be carved into a "namespace" device and bound to the PMEM or BLK driver which will attach a Linux block device (disk) interface to the memory. PMEM: Initially merged in v4.1 this driver for contiguous spans of persistent memory address ranges is re-worked to drive PMEM-namespaces emitted by the libnvdimm-core. In this update the PMEM driver, on x86, gains the ability to assert that writes to persistent memory have been flushed all the way through the caches and buffers in the platform to persistent media. See memcpy_to_pmem() and wmb_pmem(). BLK: This new driver enables access to persistent memory media through "Block Data Windows" as defined by the NFIT. The primary difference of this driver to PMEM is that only a small window of persistent memory is mapped into system address space at any given point in time. Per-NVDIMM windows are reprogrammed at run time, per-I/O, to access different portions of the media. BLK-mode, by definition, does not support DAX. BTT: This is a library, optionally consumed by either PMEM or BLK, that converts a byte-accessible namespace into a disk with atomic sector update semantics (prevents sector tearing on crash or power loss). The sinister aspect of sector tearing is that most applications do not know they have a atomic sector dependency. At least today's disk's rarely ever tear sectors and if they do one almost certainly gets a CRC error on access. NVDIMMs will always tear and always silently. Until an application is audited to be robust in the presence of sector-tearing the usage of BTT is recommended. Thanks to: Ross Zwisler, Jeff Moyer, Vishal Verma, Christoph Hellwig, Ingo Molnar, Neil Brown, Boaz Harrosh, Robert Elliott, Matthew Wilcox, Andy Rudoff, Linda Knippers, Toshi Kani, Nicholas Moulin, Rafael Wysocki, and Bob Moore" * tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm: (33 commits) arch, x86: pmem api for ensuring durability of persistent memory updates libnvdimm: Add sysfs numa_node to NVDIMM devices libnvdimm: Set numa_node to NVDIMM devices acpi: Add acpi_map_pxm_to_online_node() libnvdimm, nfit: handle unarmed dimms, mark namespaces read-only pmem: flag pmem block devices as non-rotational libnvdimm: enable iostat pmem: make_request cleanups libnvdimm, pmem: fix up max_hw_sectors libnvdimm, blk: add support for blk integrity libnvdimm, btt: add support for blk integrity fs/block_dev.c: skip rw_page if bdev has integrity libnvdimm: Non-Volatile Devices tools/testing/nvdimm: libnvdimm unit test infrastructure libnvdimm, nfit, nd_blk: driver for BLK-mode access persistent memory nd_btt: atomic sector updates libnvdimm: infrastructure for btt devices libnvdimm: write blk label set libnvdimm: write pmem label set libnvdimm: blk labels and namespace instantiation ...
| * libnvdimm: control (ioctl) messages for nvdimm_bus and nvdimm devicesDan Williams2015-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most discovery/configuration of the nvdimm-subsystem is done via sysfs attributes. However, some nvdimm_bus instances, particularly the ACPI.NFIT bus, define a small set of messages that can be passed to the platform. For convenience we derive the initial libnvdimm-ioctl command formats directly from the NFIT DSM Interface Example formats. ND_CMD_SMART: media health and diagnostics ND_CMD_GET_CONFIG_SIZE: size of the label space ND_CMD_GET_CONFIG_DATA: read label space ND_CMD_SET_CONFIG_DATA: write label space ND_CMD_VENDOR: vendor-specific command passthrough ND_CMD_ARS_CAP: report address-range-scrubbing capabilities ND_CMD_ARS_START: initiate scrubbing ND_CMD_ARS_STATUS: report on scrubbing state ND_CMD_SMART_THRESHOLD: configure alarm thresholds for smart events If a platform later defines different commands than this set it is straightforward to extend support to those formats. Most of the commands target a specific dimm. However, the address-range-scrubbing commands target the bus. The 'commands' attribute in sysfs of an nvdimm_bus, or nvdimm, enumerate the supported commands for that object. Cc: <linux-acpi@vger.kernel.org> Cc: Robert Moore <robert.moore@intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reported-by: Nicholas Moulin <nicholas.w.moulin@linux.intel.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | Merge tag 'tty-4.2-rc1' of ↵Linus Torvalds2015-06-26
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here's the tty and serial driver patches for 4.2-rc1. A number of individual driver updates, some code cleanups, and other minor things, full details in the shortlog. All have been in linux-next for a while with no reported issues" * tag 'tty-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (152 commits) Doc: serial-rs485.txt: update RS485 driver interface Doc: tty.txt: remove mention of the BKL MAINTAINERS: tty: add serial docs directory serial: sprd: check for NULL after calling devm_clk_get serial: 8250_pci: Correct uartclk for xr17v35x expansion chips serial: 8250_pci: Add support for 12 port Exar boards serial: 8250_uniphier: add bindings document for UniPhier UART serial: core: cleanup in uart_get_baud_rate() serial: stm32-usart: Add STM32 USART Driver tty/serial: kill off set_irq_flags usage tty: move linux/gsmmux.h to uapi doc: dt: add documentation for nxp,lpc1850-uart serial: 8250: add LPC18xx/43xx UART driver serial: 8250_uniphier: add UniPhier serial driver serial: 8250_dw: support ACPI platforms with integrated DMA engine serial: of_serial: check the return value of clk_prepare_enable() serial: of_serial: use devm_clk_get() instead of clk_get() serial: earlycon: Add support for big-endian MMIO accesses serial: sirf: use hrtimer for data rx serial: sirf: correct the fifo empty_bit ...
| * | tty: move linux/gsmmux.h to uapiJiri Slaby2015-05-31
| |/ | | | | | | | | | | | | | | | | | | | | | | | | linux/gsmmux.h defines a user interface and therefore should be installed with other headers. Make the file include: * linux/if.h for IFNAMSIZ * linux/ioctl.h for _IO* macros Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge tag 'char-misc-4.2-rc1' of ↵Linus Torvalds2015-06-26
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here's the big char/misc driver pull request for 4.2-rc1. Lots of mei, extcon, coresight, uio, mic, and other driver updates in here. Full details in the shortlog. All of these have been in linux-next for some time with no reported problems" * tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (176 commits) mei: me: wait for power gating exit confirmation mei: reset flow control on the last client disconnection MAINTAINERS: mei: add mei_cl_bus.h to maintained file list misc: sram: sort and clean up included headers misc: sram: move reserved block logic out of probe function misc: sram: add private struct device and virt_base members misc: sram: report correct SRAM pool size misc: sram: bump error message level on unclean driver unbinding misc: sram: fix device node reference leak on error misc: sram: fix enabled clock leak on error path misc: mic: Fix reported static checker warning misc: mic: Fix randconfig build error by including errno.h uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config uio: pruss: Add CONFIG_HAS_IOMEM dependence uio: pruss: Include <linux/sizes.h> extcon: Redefine the unique id of supported external connectors without 'enum extcon' type char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration(). Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion parport: check exclusive access before register w1: use correct lock on error in w1_seq_show() ...
| * | misc: mic: SCIF header file and IOCTL interfaceSudeep Dutt2015-05-24
| |/ | | | | | | | | | | | | | | | | | | | | | | This patch introduces the SCIF documentation in the header file and describes the IOCTL interface for user mode. mic_overview.txt is updated with documentation on SCIF and a new document describing SCIF in more details is available in scif_overview.txt. Reviewed-by: Nikhil Rao <nikhil.rao@intel.com> Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* / Add virtio gpu driver.Dave Airlie2015-06-03
|/ | | | | | | | | | | | | | | | | | | | | This patch adds a kms driver for the virtio gpu. The xorg modesetting driver can handle the device just fine, the framebuffer for fbcon is there too. Qemu patches for the host side are under review currently. The pci version of the device comes in two variants: with and without vga compatibility. The former has a extra memory bar for the vga framebuffer, the later is a pure virtio device. The only concern for this driver is that in the virtio-vga case we have to kick out the firmware framebuffer. Initial revision has only 2d support, 3d (virgl) support requires some more work on the qemu side and will be added later. Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com>
* Merge tag 'virtio-next-for-linus' of ↵Linus Torvalds2015-04-22
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull virtio updates from Rusty Russell: "Some virtio internal cleanups, a new virtio device "virtio input", and a change to allow the legacy virtio balloon. Most excitingly, some lguest work! No seriously, I got some cleanup patches" * tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: virtio: drop virtio_device_is_legacy_only virtio_pci: support non-legacy balloon devices virtio_mmio: support non-legacy balloon devices virtio_ccw: support non-legacy balloon devices virtio: balloon might not be a legacy device virtio_balloon: transitional interface virtio_ring: Update weak barriers to use dma_wmb/rmb virtio_pci_modern: switch to type-safe io accessors virtio_pci_modern: type-safe io accessors lguest: handle traps on the "interrupt suppressed" iret instruction. virtio: drop a useless config read virtio_config: reorder functions Add virtio-input driver. lguest: suppress interrupts for single insn, not range. lguest: simplify lguest_iret lguest: rename i386_head.S in the comments lguest: explicitly set miscdevice's private_data NULL lguest: fix pending interrupt test.
| * Add virtio-input driver.Gerd Hoffmann2015-03-28
| | | | | | | | | | | | | | | | | | | | virtio-input is basically evdev-events-over-virtio, so this driver isn't much more than reading configuration from config space and forwarding incoming events to the linux input layer. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* | Merge branch 'drm-next-merged' of ↵Mauro Carvalho Chehab2015-04-21
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://people.freedesktop.org/~airlied/linux into v4l_for_linus * 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux: (9717 commits) media-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format hexdump: avoid warning in test function fs: take i_mutex during prepare_binprm for set[ug]id executables smp: Fix error case handling in smp_call_function_*() iommu-common: Fix PARISC compile-time warnings sparc: Make LDC use common iommu poll management functions sparc: Make sparc64 use scalable lib/iommu-common.c functions Break up monolithic iommu table/lock into finer graularity pools and lock sparc: Revert generic IOMMU allocator. tools/power turbostat: correct dumped pkg-cstate-limit value tools/power turbostat: calculate TSC frequency from CPUID(0x15) on SKL tools/power turbostat: correct DRAM RAPL units on recent Xeon processors tools/power turbostat: Initial Skylake support tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile tools/power turbostat: modprobe msr, if needed tools/power turbostat: dump MSR_TURBO_RATIO_LIMIT2 tools/power turbostat: use new MSR_TURBO_RATIO_LIMIT names Bluetooth: hidp: Fix regression with older userspace and flags validation config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected perf/x86/intel/pt: Fix and clean up error handling in pt_event_add() ... That solves several merge conflicts: Documentation/DocBook/media/v4l/subdev-formats.xml Documentation/devicetree/bindings/vendor-prefixes.txt drivers/staging/media/mn88473/mn88473.c include/linux/kconfig.h include/uapi/linux/media-bus-format.h The ones at subdev-formats.xml and media-bus-format.h are not trivial. That's why we opted to merge from DRM.
| * \ Merge tag 'iio-for-4.1a' of ↵Greg Kroah-Hartman2015-03-24
| |\ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First set of new drivers, cleanups and functionality for IIO in the 4.1 cycle. New drivers * CM3323 color sensor. * MS5611 pressure and temperature sensor. New functionality * mup6050 - create mux clients for devices described via ACPI. The reasoning and approach taken in this patch are complex. Basically there is no otherway of finding out what is there than by some esoteric look ups in the ACPI data. * cm3232 - PM support * itg3200 - suspend/resume support * mcp320x - add more ADCs to the kconfig to reflect what the driver supports (this patch and the bindings got left behind when the support was added a while back). Docs / utils * ti-adc128s052 - DT bindings. * mcp3422 - DT bindings. * mcp320x - DT bindings * ABI docs for event threshold scale attributes, in_magn_offset, proximity scan_element and thresh falling/rising values for accelerometers. All elements long in use that have slipped by being explicitly documented. * Tidy up the tools previously in drivers/staging/iio/Documentation and move them out to /tools/iio. Yet another move that should have happened long ago. This time Roberta Dobrescu did the leg work. Thanks! Core Cleanups * Export userspace IIO headers. We should have done the appropriate header splitting a long time ago. Thanks to Daniel for sorting this out. * Refactor the registring of attributes for buffers to move all non-custom ones to a vector allowing easier additions to the current set in the future. Driver Cleanups * gpiod related cleanups. Make use of the additional parameter to specify initial direciton to avoid extra code. * bmc150 - Various refactorings to reduce code repitition and prepare for hardware buffer support. Some of these cleanups are good even without the new functionality. * kmx61 - direct use of index to an array avoiding a structure element which was always the index to an element in an array of that structure. * vf610 - avoid incorrect type for return from wait_for_completion_timeout. * gp2ap020a00f - use put_unaligned_le32 for slight code simplification. * ade7754 - improve error handling including suppressing some build warnings. * ade7759 - improve error handling including suppressing some build warnings. * hmc5843 - Long line and indentation fixes. Also some constifying of various constant data. * ade7854 - 80+ character line splitting. * ad2s1210 - fix wrong printf format string. * mxs-lradc - fix wrong printf format string. * ade7954-i2c - code alignment fixes and other trivial but worthwhile bits. * periodic rtc trigger - make the frequency type an unsigned int as it is always treated as such. * jsa1212 - constify struct regmap_config as it is constant. * ad7793 - typo in the MODULE_DESCRIPTION * mma9551 - check gpiod_to_irq errors. Note that this doesn't actually cause any trouble but is worth tidying up as obviously incorrect. * mlx90614 - refactor the register symbols to make it clear which reads are to RAM not PROM.
| | * iio: Export userspace IIO headersDaniel Baluta2015-02-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After UAPI header file split [1] all user-kernel interfaces were placed under include/uapi/. This patch moves IIO user specific API from: * include/linux/iio/events.h => include/uapi/linux/iio/events.h * include/linux/types.h => include/uapi/linux/types.h Now there is no need for nasty tricks to compile userspace programs (e.g iio_event_monitor). Just installing the kernel headers with make headers_install command does the job. [1] http://lwn.net/Articles/507794/ Signed-off-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | | [media] v4l: xilinx: Add Test Pattern Generator driverLaurent Pinchart2015-04-03
|/ / | | | | | | | | | | | | | | | | | | | | | | The TPG generates multiple static or dynamic test patterns. The driver currently hardcodes the pattern to the moving box pattern. Signed-off-by: Christian Kohn <christian.kohn@xilinx.com> Signed-off-by: Hyun Kwon <hyun.kwon@xilinx.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* | fs/binfmt_som: Drop kernel support for HP-UX SOM binariesHelge Deller2015-02-17
| | | | | | | | | | | | | | | | | | | | | | | | The parisc arch has been the only user of HP-UX SOM binaries. Support for HP-UX executables was never finished and since we now drop support for the HP-UX compat layer anyway, it does not makes sense to keep the BINFMT_SOM support. Cc: linux-fsdevel@vger.kernel.org Cc: linux-parisc@vger.kernel.org Signed-off-by: Helge Deller <deller@gmx.de>
* | Merge tag 'media/v3.20-1' of ↵Linus Torvalds2015-02-11
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - Some documentation updates and a few new pixel formats - Stop btcx-risc abuse by cx88 and move it to bt8xx driver - New platform driver: am437x - New webcam driver: toptek - New remote controller hardware protocols added to img-ir driver - Removal of a few very old drivers that relies on old kABIs and are for very hard to find hardware: parallel port webcam drivers (bw-qcam, c-cam, pms and w9966), tlg2300, Video In/Out for SGI (vino) - Removal of the USB Telegent driver (tlg2300). The company that developed this driver has long gone and the hardware is hard to find. As it relies on a legacy set of kABI symbols and nobody seems to care about it, remove it. - several improvements at rtl2832 driver - conversion on cx28521 and au0828 to use videobuf2 (VB2) - several improvements, fixups and board additions * tag 'media/v3.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (321 commits) [media] dvb_net: Convert local hex dump to print_hex_dump_debug [media] dvb_net: Use standard debugging facilities [media] dvb_net: Use vsprintf %pM extension to print Ethernet addresses [media] staging: lirc_serial: adjust boolean assignments [media] stb0899: use sign_extend32() for sign extension [media] si2168: add support for 1.7MHz bandwidth [media] si2168: return error if set_frontend is called with invalid parameters [media] lirc_dev: avoid potential null-dereference [media] mn88472: simplify bandwidth registers setting code [media] dvb: tc90522: re-add symbol-rate report [media] lmedm04: add read snr, signal strength and ber call backs [media] lmedm04: Create frontend call back for read status [media] lmedm04: create frontend callbacks for signal/snr/ber/ucblocks [media] lmedm04: Fix usb_submit_urb BOGUS urb xfer, pipe 1 != type 3 in interrupt urb [media] lmedm04: Increase Interupt due time to 200 msec [media] cx88-dvb: whitespace cleanup [media] rtl28xxu: properly initialize pdata [media] rtl2832: declare functions as static [media] rtl2830: declare functions as static [media] rtl2832_sdr: add kernel-doc comments for platform_data ...
| * | [media] media: platform: add VPFE capture driver support for AM437XBenoit Parrot2014-12-23
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds Video Processing Front End (VPFE) driver for AM437X family of devices Driver supports the following: - V4L2 API using MMAP buffer access based on videobuf2 api - Asynchronous sensor/decoder sub device registration - DT support Signed-off-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Darren Etheridge <detheridge@ti.com> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> [hans.verkuil@cisco.com: swapped two lines to fix vpfe_release() & add pinctrl include] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* / netns: add rtnl cmd to add and get peer netns idsNicolas Dichtel2015-01-19
|/ | | | | | | | | | | | | | | | With this patch, a user can define an id for a peer netns by providing a FD or a PID. These ids are local to the netns where it is added (ie valid only into this netns). The main function (ie the one exported to other module), peernet2id(), allows to get the id of a peer netns. If no id has been assigned by the user, this function allocates one. These ids will be used in netlink messages to point to a peer netns, for example in case of a x-netns interface. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'next' of ↵Linus Torvalds2014-12-17
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management update from Zhang Rui: "Summary: - of-thermal extension to allow drivers to register and use its functionality in a better way, without exploiting thermal core. From Lukasz Majewski. - Fix a bug in intel_soc_dts_thermal driver which calls a sleep function in interrupt handler. From Maurice Petallo. - add a thermal UAPI header file for exporting the thermal generic netlink information to user-space. From Florian Fainelli. - First round of refactoring in Exynos driver. Bartlomiej and Lukasz are attempting to make it lean and easier to understand. - New thermal driver for Rockchip (rk3288), with support for DT thermal. From Caesar Wang. - New thermal driver for Nvidia, Tegra124 SOCTHERM driver, with support for DT thermal. From Mikko Perttunen. - New cooling device, based on common clock framework. From Eduardo Valentin. - a couple of small fixes in thermal core framework. From Srinivas Pandruvada, Javi Merino, Luis Henriques. - Dropping Armada A375-Z1 SoC thermal support as the chip is not in the market, armada folks decided to drop its support. - a couple of small fixes and cleanups in int340x thermal driver" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (58 commits) thermal: provide an UAPI header file Thermal/int340x: Clear the error value of the last acpi_bus_get_device() call thermal/powerclamp: add id for braswell cpu thermal: Intel SoC DTS: Don't do thermal zone update inside spin_lock Thermal: fix platform_no_drv_owner.cocci warnings Thermal/int340x: avoid unnecessary pointer casting thermal: int3403: Delete a check before thermal_zone_device_unregister() thermal/int3400: export uuids thermal: of: Extend current of-thermal.c code to allow setting emulated temp thermal: of: Extend of-thermal to export table of trip points thermal: of: Rename struct __thermal_trip to struct thermal_trip thermal: of: Extend of-thermal.c to provide check if trip point is valid thermal: of: Extend of-thermal.c to provide number of trip points thermal: Fix error path in thermal_init() thermal: lock the thermal zone when switching governors thermal: core: ignore invalid trip temperature thermal: armada: Remove support for A375-Z1 SoC thermal: rockchip: add driver for thermal dt-bindings: document Rockchip thermal thermal: exynos: remove exynos_tmu_data.h include ...
| * thermal: provide an UAPI header fileFlorian Fainelli2014-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | include/linux/thermal.h contains definitions for the Thermal generic netlink family, but none of the valuable information relevant to user-space such as the Genl family name, multicast group, version or command set and data types is exported to user-space. Export all the relevant generic netlink information to user-space to make this genl family usable by user-space, and while at it, export THERMAL_NAME_LENGTH since it limits name length for thermal_hwmon devices. Kbuild and MAINTAINERS are also updated accordingly to reflect this new file: include/uapi/linux/thermal.h. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
* | Merge tag 'linux-kselftest-3.19-rc1' of ↵Linus Torvalds2014-12-16
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest update from Shuah Khan: "kselftest updates for 3.19-rc1: - kcmp test include file cleanup - kcmp change to build on all architectures - A light weight kselftest framework that provides a set of interfaces for tests to use to report results. In addition, several tests are updated to use the framework. - A new runtime system size test that prints the amount of RAM that the currently running system is using" * tag 'linux-kselftest-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftest: size: Add size test for Linux kernel selftests/kcmp: Always try to build the test selftests/kcmp: Don't include kernel headers kcmp: Move kcmp.h into uapi selftests/timers: change test to use ksft framework selftests/kcmp: change test to use ksft framework selftests/ipc: change test to use ksft framework selftests/breakpoints: change test to use ksft framework selftests: add kselftest framework for uniform test reporting selftests/user: move test out of Makefile into a shell script selftests/net: move test out of Makefile into a shell script
| * | kcmp: Move kcmp.h into uapiMichael Ellerman2014-12-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kcmp.h appears to be part of the API, it's documented in kcmp(2), and the selftests/kcmp code uses it. So move it to uapi so it's actually exported. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* | | Merge tag 'staging-3.19-rc1' of ↵Linus Torvalds2014-12-15
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver updates from Greg KH: "Here's the big staging tree pull request for 3.19-rc1. We continued to delete more lines than were added, always a good thing, but not at a huge rate this release, only about 70k lines removed overall mostly from removing the horrid bcm driver. Lots of normal staging driver cleanups and fixes all over the place, well over a thousand of them, the shortlog shows all the horrid details. The "contentious" thing here is the movement of the Android binder code out of staging into the "real" part of the kernel. This is code that has been stable for a few years now and is working as-is in the tens of millions of devices with no issues. Yes, the code is horrid, and the userspace api leaves a lot to be desired, but it's not going to change due to legacy issues that we have no control over. Because so many devices and companies rely on this, and the code is stable, might as well promote it out of staging. This was all discussed at the Linux Plumbers conference, and everyone participating agreed that this was the best way forward. There is work happening to replace the binder code with something new that is happening right now, but I don't expect to see the results of that work for another year at the earliest. If that ever happens, and Android switches over to it, I'll gladly remove this version. As for maintainers, I'll be glad to maintain this code, I've been doing it for the past few years with no problems. I'll send a MAINTAINERS entry for it before 3.19-final is out, still need to talk to the Google developers about if they are willing to help with it or not, last I checked they were, which was good. All of these patches have been in linux-next for a while with no reported issues" * tag 'staging-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1382 commits) Staging: slicoss: Fix long line issues in slicoss.c staging: rtl8712: remove unnecessary else after return staging: comedi: change some printk calls to pr_err staging: rtl8723au: hal: Removed the extra semicolon lustre: Deletion of unnecessary checks before three function calls staging: lustre: fix sparse warnings: static function declaration staging: lustre: fixed sparse warnings related to static declarations staging: unisys: remove duplicate header staging: unisys: remove unneeded structure staging: ft1000 : replace __attribute ((__packed__) with __packed drivers: staging: rtl8192e: Include "asm/unaligned.h" instead of "access_ok.h" in "rtl819x_BAProc.c" Drivers:staging:rtl8192e: Fixed checkpatch warning Drivers:staging:clocking-wizard: Added a newline staging: clocking-wizard: check for a valid clk_name pointer staging: rtl8723au: Hal_InitPGData() avoid unnecessary typecasts staging: rtl8723au: _DisableAnalog(): Avoid zero-init variables unnecessarily staging: rtl8723au: Remove unnecessary wrapper _ResetDigitalProcedure1() staging: rtl8723au: _ResetDigitalProcedure1_92C() reduce code obfuscation staging: rtl8723au: Remove unnecessary wrapper _DisableRFAFEAndResetBB() staging: rtl8723au: _DisableRFAFEAndResetBB8192C(): Reduce code obfuscation ...