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2015-10-27Merge 4.3-rc7 into staging-nextGreg Kroah-Hartman
We want the other staging patches in this branch as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-26mmc: block: Add new ioctl to send multi commandsJon Hunter
Certain eMMC devices allow vendor specific device information to be read via a sequence of vendor commands. These vendor commands must be issued in sequence and an atomic fashion. One way to support this would be to add an ioctl function for sending a sequence of commands to the device atomically as proposed here. These multi commands are simple array of the existing mmc_ioc_cmd structure. The structure passed via the ioctl uses a __u64 type to specify the number of commands (so that the structure is aligned on a 64-bit boundary) and a zero length array as a header for list of commands to be issued. The maximum number of commands that can be sent is determined by MMC_IOC_MAX_CMDS (which defaults to 255 and should be more than sufficient). This based upon work by Seshagiri Holi <sholi@nvidia.com>. Signed-off-by: Seshagiri Holi <sholi@nvidia.com> Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-26Merge 4.3-rc7 into usb-nextGreg Kroah-Hartman
We want the USB and other fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: net/ipv6/xfrm6_output.c net/openvswitch/flow_netlink.c net/openvswitch/vport-gre.c net/openvswitch/vport-vxlan.c net/openvswitch/vport.c net/openvswitch/vport.h The openvswitch conflicts were overlapping changes. One was the egress tunnel info fix in 'net' and the other was the vport ->send() op simplification in 'net-next'. The xfrm6_output.c conflicts was also a simplification overlapping a bug fix. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-24raid5: add basic stripe logShaohua Li
This introduces a simple log for raid5. Data/parity writing to raid array first writes to the log, then write to raid array disks. If crash happens, we can recovery data from the log. This can speed up raid resync and fix write hole issue. The log structure is pretty simple. Data/meta data is stored in block unit, which is 4k generally. It has only one type of meta data block. The meta data block can track 3 types of data, stripe data, stripe parity and flush block. MD superblock will point to the last valid meta data block. Each meta data block has checksum/seq number, so recovery can scan the log correctly. We store a checksum of stripe data/parity to the metadata block, so meta data and stripe data/parity can be written to log disk together. otherwise, meta data write must wait till stripe data/parity is finished. For stripe data, meta data block will record stripe data sector and size. Currently the size is always 4k. This meta data record can be made simpler if we just fix write hole (eg, we can record data of a stripe's different disks together), but this format can be extended to support caching in the future, which must record data address/size. For stripe parity, meta data block will record stripe sector. It's size should be 4k (for raid5) or 8k (for raid6). We always store p parity first. This format should work for caching too. flush block indicates a stripe is in raid array disks. Fixing write hole doesn't need this type of meta data, it's for caching extension. Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: NeilBrown <neilb@suse.com>
2015-10-24md: override md superblock recovery_offset for journal deviceShaohua Li
Journal device stores data in a log structure. We need record the log start. Here we override md superblock recovery_offset for this purpose. This field of a journal device is meaningless otherwise. Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: NeilBrown <neilb@suse.com>
2015-10-24MD: add a new disk role to present write journal deviceSong Liu
Next patches will use a disk as raid5/6 journaling. We need a new disk role to present the journal device and add MD_FEATURE_JOURNAL to feature_map for backward compability. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: NeilBrown <neilb@suse.com>
2015-10-24MD: replace special disk roles with macrosSong Liu
Add the following two macros for special roles: spare and faulty MD_DISK_ROLE_SPARE 0xffff MD_DISK_ROLE_FAULTY 0xfffe Add MD_DISK_ROLE_MAX 0xff00 as the maximal possible regular role, and minimal value of special role. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: NeilBrown <neilb@suse.com>
2015-10-23i2c-dev: Fix typo in ioctl name referenceJean Delvare
The ioctl is named I2C_RDWR for "I2C read/write". But references to it were misspelled "rdrw". Fix them. Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-10-23if_link: Add control trust VFHiroshi Shimamoto
Add netlink directives and ndo entry to trust VF user. This controls the special permission of VF user. The administrator will dedicatedly trust VF user to use some features which impacts security and/or performance. The administrator never turn it on unless VF user is fully trusted. CC: Sy Jong Choi <sy.jong.choi@intel.com> Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Acked-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-22Merge tag 'firmware/psci-1.0' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/linux into next/drivers This pull request contains patches that enable PSCI 1.0 firmware features for arm/arm64 platforms: - Lorenzo Pieralisi adds support for the PSCI_FEATURES call, manages various 1.0 specifications updates (power state id and functions return values) and provides PSCI v1.0 DT bindings - Sudeep Holla implements PSCI v1.0 system suspend support to enable PSCI based suspend-to-RAM * tag 'firmware/psci-1.0' of git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/linux: drivers: firmware: psci: add system suspend support drivers: firmware: psci: define more generic PSCI_FN_NATIVE macro drivers: firmware: psci: add PSCI v1.0 DT bindings drivers: firmware: psci: add extended stateid power_state support drivers: firmware: psci: add PSCI_FEATURES call drivers: firmware: psci: move power_state handling to generic code drivers: firmware: psci: add INVALID_ADDRESS return value Signed-off-by: Olof Johansson <olof@lixom.net>
2015-10-22Merge tag 'mac80211-next-for-davem-2015-10-21' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg says: ==================== Here's another set of patches for the current cycle: * I merged net-next back to avoid a conflict with the * cfg80211 scheduled scan API extensions * preparations for better scan result timestamping * regulatory cleanups * mac80211 statistics cleanups * a few other small cleanups and fixes ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-22bpf: introduce bpf_perf_event_output() helperAlexei Starovoitov
This helper is used to send raw data from eBPF program into special PERF_TYPE_SOFTWARE/PERF_COUNT_SW_BPF_OUTPUT perf_event. User space needs to perf_event_open() it (either for one or all cpus) and store FD into perf_event_array (similar to bpf_perf_event_read() helper) before eBPF program can send data into it. Today the programs triggered by kprobe collect the data and either store it into the maps or print it via bpf_trace_printk() where latter is the debug facility and not suitable to stream the data. This new helper replaces such bpf_trace_printk() usage and allows programs to have dedicated channel into user space for post-processing of the raw data collected. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-21openvswitch: Clarify conntrack COMMIT behaviourJoe Stringer
The presence of this attribute does not modify the ct_state for the current packet, only future packets. Make this more clear in the header definition. Signed-off-by: Joe Stringer <joestringer@nicira.com> Acked-by: Thomas Graf <tgraf@suug.ch> Acked-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-21block: add an API for Persistent ReservationsChristoph Hellwig
This commits adds a driver API and ioctls for controlling Persistent Reservations s/genericly/generically/ at the block layer. Persistent Reservations are supported by SCSI and NVMe and allow controlling who gets access to a device in a shared storage setup. Note that we add a pr_ops structure to struct block_device_operations instead of adding the members directly to avoid bloating all instances of devices that will never support Persistent Reservations. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2015-10-21nfs: add missing linux/types.hPeng Tao
After merging the nfs tree, today's linux-next build (powerpc allyesconfig produced this warning: ./usr/include/linux/nfs.h:40: found __[us]{8,16,32,64} type without #include <linux/types.h> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2015-10-20[media] v4l: add type field to v4l2_modulator structAntti Palosaari
Add type field to that struct like it counterpart v4l2_tuner already has. We need type field to distinguish different tuner types from each others for transmitter too. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-20[media] v4l2: add support for SDR transmitterAntti Palosaari
New IOCTL ops: vidioc_enum_fmt_sdr_out vidioc_g_fmt_sdr_out vidioc_s_fmt_sdr_out vidioc_try_fmt_sdr_out New vb2 buffertype: V4L2_BUF_TYPE_SDR_OUTPUT New v4l2 capability: V4L2_CAP_SDR_OUTPUT Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-20[media] v4l2: add RF gain controlAntti Palosaari
Add new RF tuner gain control named RF Gain. That is aimed for first amplifier chip right after antenna connector. There is existing LNA Gain control, which is quite same, but it is aimed for cases amplifier is integrated to tuner chip. Some designs have both, as almost all recent tuner silicons has integrated LNA/RF amplifier in any case. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-20[media] v4l2: rename V4L2_TUNER_ADC to V4L2_TUNER_SDRAntti Palosaari
SDR receiver has ADC (Analog-to-Digital Converter) and SDR transmitter has DAC (Digital-to-Analog Converter). Originally I though it could be good idea to have own type for receiver and transmitter, but now I feel one common type for SDR is enough. So lets rename it. Signed-off-by: Antti Palosaari <crope@iki.fi> Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> [hans.verkuil@cisco.com: this was added in 4.4, so update 4.2 to 4.4] Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/usb/asix_common.c net/ipv4/inet_connection_sock.c net/switchdev/switchdev.c In the inet_connection_sock.c case the request socket hashing scheme is completely different in net-next. The other two conflicts were overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-20perf: Add PERF_SAMPLE_BRANCH_CALLStephane Eranian
Add a new branch sample type to cover only call branches (function calls). The current ANY_CALL included direct, indirect calls and far jumps. We want to be able to differentiate indirect from direct calls. Therefore we introduce PERF_SAMPLE_BRANCH_CALL. The implementation is up to each architecture. Signed-off-by: Stephane Eranian <eranian@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: khandual@linux.vnet.ibm.com Link: http://lkml.kernel.org/r/1444720151-10275-2-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-10-20perf/x86: Fix time_shift in perf_event_mmap_pageAdrian Hunter
Commit: b20112edeadf ("perf/x86: Improve accuracy of perf/sched clock") allowed the time_shift value in perf_event_mmap_page to be as much as 32. Unfortunately the documented algorithms for using time_shift have it shifting an integer, whereas to work correctly with the value 32, the type must be u64. In the case of perf tools, Intel PT decodes correctly but the timestamps that are output (for example by perf script) have lost 32-bits of granularity so they look like they are not changing at all. Fix by limiting the shift to 31 and adjusting the multiplier accordingly. Also update the documentation of perf_event_mmap_page so that new code based on it will be more future-proof. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: b20112edeadf ("perf/x86: Improve accuracy of perf/sched clock") Link: http://lkml.kernel.org/r/1445001845-13688-2-git-send-email-adrian.hunter@intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-10-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter/IPVS updates for net-next The following patchset contains Netfilter/IPVS updates for your net-next tree. Most relevantly, updates for the nfnetlink_log to integrate with conntrack, fixes for cttimeout and improvements for nf_queue core, they are: 1) Remove useless ifdef around static inline function in IPVS, from Eric W. Biederman. 2) Simplify the conntrack support for nfnetlink_queue: Merge nfnetlink_queue_ct.c file into nfnetlink_queue_core.c, then rename it back to nfnetlink_queue.c 3) Use y2038 safe timestamp from nfnetlink_queue. 4) Get rid of dead function definition in nf_conntrack, from Flavio Leitner. 5) Attach conntrack support for nfnetlink_log.c, from Ken-ichirou MATSUZAWA. This adds a new NETFILTER_NETLINK_GLUE_CT Kconfig switch that controls enabling both nfqueue and nflog integration with conntrack. The userspace application can request this via NFULNL_CFG_F_CONNTRACK configuration flag. 6) Remove unused netns variables in IPVS, from Eric W. Biederman and Simon Horman. 7) Don't put back the refcount on the cttimeout object from xt_CT on success. 8) Fix crash on cttimeout policy object removal. We have to flush out the cttimeout extension area of the conntrack not to refer to an unexisting object that was just removed. 9) Make sure rcu_callback completion before removing nfnetlink_cttimeout module removal. 10) Fix compilation warning in br_netfilter when no nf_defrag_ipv4 and nf_defrag_ipv6 are enabled. Patch from Arnd Bergmann. 11) Autoload ctnetlink dependencies when NFULNL_CFG_F_CONNTRACK is requested. Again from Ken-ichirou MATSUZAWA. 12) Don't use pointer to previous hook when reinjecting traffic via nf_queue with NF_REPEAT verdict since it may be already gone. This also avoids a deadloop if the userspace application keeps returning NF_REPEAT. 13) A bunch of cleanups for netfilter IPv4 and IPv6 code from Ian Morris. 14) Consolidate logger instance existence check in nfulnl_recv_config(). 15) Fix broken atomicity when applying configuration updates to logger instances in nfnetlink_log. 16) Get rid of the .owner attribute in our hook object. We don't need this anymore since we're dropping pending packets that have escaped from the kernel when unremoving the hook. Patch from Florian Westphal. 17) Remove unnecessary rcu_read_lock() from nf_reinject code, we always assume RCU read side lock from .call_rcu in nfnetlink. Also from Florian. 18) Use static inline function instead of macros to define NF_HOOK() and NF_HOOK_COND() when no netfilter support in on, from Arnd Bergmann. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-18uapi: add mpls_iptunnel.hstephen hemminger
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>
2015-10-17ext4: reserve code points for the project quota featureTheodore Ts'o
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-10-17Merge branch 'master' of ↵Pablo Neira Ayuso
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next This merge resolves conflicts with 75aec9df3a78 ("bridge: Remove br_nf_push_frag_xmit_sk") as part of Eric Biederman's effort to improve netns support in the network stack that reached upstream via David's net-next tree. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Conflicts: net/bridge/br_netfilter_hooks.c
2015-10-16Input: document and check on implicitly defined FF_MAX_EFFECTSElias Vanderstuyft
There is an undocumented upper bound for the total number of ff effects: FF_GAIN (= 96). This can be found as follows: - user: write(EV_FF, effect_id, iterations) calls kernel: ff->playback(effect_id, ...): starts effect "effect_id" - user: write(EV_FF, FF_GAIN, gain) calls kernel: ff->set_gain(gain, ...): sets gain A collision occurs when effect_id equals FF_GAIN. According to input_ff_event(), FF_GAIN is the smallest value where a collision occurs. Therefore the greatest safe value for effect_id is FF_GAIN - 1, and thus the total number of effects should never exceed FF_GAIN. Define FF_MAX_EFFECTS as FF_GAIN and check on this limit in ff-core. Signed-off-by: Elias Vanderstuyft <elias.vds@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-16Input: fix EVIOCSFF macro inconsistency by using _IOW()Elias Vanderstuyft
Just like the EVIOCSABS(abs) macro, use the more compact _IOW(..., type) instead of _IOC(_IOC_WRITE, ..., sizeof(type)) for the EVIOCSFF macro. Signed-off-by: Elias Vanderstuyft <elias.vds@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-10-16Input: add input-event-codes header fileHans de Goede
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>
2015-10-16virtio-gpu: add 3d/virgl supportGerd Hoffmann
Add the bits needed for opengl rendering support: query capabilities, new virtio commands, drm ioctls. Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-10-15nfs42: add NFS_IOC_CLONE_RANGE ioctlPeng Tao
It follows btrfs BTRFS_IOC_CLONE_RANGE lead on ioctl number and arguments. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2015-10-15nfs42: add NFS_IOC_CLONE ioctlPeng Tao
It can be called by user space to CLONE two files. Follow btrfs lead and define NFS_IOC_CLONE same as BTRFS_IOC_CLONE. Thus we don't mess up userspace with too many ioctls. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2015-10-14Merge tag 'efi-next' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into core/efi Pull v4.4 EFI updates from Matt Fleming: - Make the EFI System Resource Table (ESRT) driver explicitly non-modular by ripping out the module_* code since Kconfig doesn't allow it to be built as a module anyway. (Paul Gortmaker) - Make the x86 efi=debug kernel parameter, which enables EFI debug code and output, generic and usable by arm64. (Leif Lindholm) - Add support to the x86 EFI boot stub for 64-bit Graphics Output Protocol frame buffer addresses. (Matt Fleming) - Detect when the UEFI v2.5 EFI_PROPERTIES_TABLE feature is enabled in the firmware and set an efi.flags bit so the kernel knows when it can apply more strict runtime mapping attributes - Ard Biesheuvel - Auto-load the efi-pstore module on EFI systems, just like we currently do for the efivars module. (Ben Hutchings) - Add "efi_fake_mem" kernel parameter which allows the system's EFI memory map to be updated with additional attributes for specific memory ranges. This is useful for testing the kernel code that handles the EFI_MEMORY_MORE_RELIABLE memmap bit even if your firmware doesn't include support. (Taku Izumi) Note: there is a semantic conflict between the following two commits: 8a53554e12e9 ("x86/efi: Fix multiple GOP device support") ae2ee627dc87 ("efifb: Add support for 64-bit frame buffer addresses") I fixed up the interaction in the merge commit, changing the type of current_fb_base from u32 to u64. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-10-14Merge branch 'md-next' of git://github.com/goldwynr/linux into for-nextNeilBrown
md-cluster: A better way for METADATA_UPDATED processing The processing of METADATA_UPDATED message is too simple and prone to errors. Besides, it would not update the internal data structures as required. This set of patches reads the superblock from one of the device of the MD and checks for changes in the in-memory data structures. If there is a change, it performs the necessary actions to keep the internal data structures as it would be in the primary node. An example is if a devices turns faulty. The algorithm is: 1. The initiator node marks the device as faulty and updates the superblock 2. The initiator node sends METADATA_UPDATED with an advisory device number to the rest of the nodes. 3. The receiving node on receiving the METADATA_UPDATED message 3.1 Reads the superblock 3.2 Detects a device has failed by comparing with memory structure 3.3 Calls the necessary functions to record the failure and get the device out of the active array. 3.4 Acknowledges the message. The patch series also fixes adding the disk which was impacted because of the changes. Patches can also be found at https://github.com/goldwynr/linux branch md-next Changes since V2: - Fix status synchrnoization after --add and --re-add operations - Included Guoqing's patches on endian correctness, zeroing cmsg etc - Restructure add_new_disk() and cancel()
2015-10-13can: avoid using timeval for uapiArnd Bergmann
The can subsystem communicates with user space using a bcm_msg_head header, which contains two timestamps. This is problematic for multiple reasons: a) The structure layout is currently incompatible between 64-bit user space and 32-bit user space, and cannot work in compat mode (other than x32). b) The timeval structure layout will change in 32-bit user space when we fix the y2038 overflow problem by redefining time_t to 64-bit, making new 32-bit user space incompatible with the current kernel interface. Cars last a long time and often use old kernels, so the actual users of this code are the most likely ones to migrate to y2038 safe user space. This tries to work around part of the problem by changing the publicly visible user interface in the header, but not the binary interface. Fortunately, the values passed around in the structure are relative times and do not actually suffer from the y2038 overflow, so 32-bit is enough here. We replace the use of 'struct timeval' with a newly defined 'struct bcm_timeval' that uses the exact same binary layout as before and that still suffers from problem a) but not problem b). The downside of this approach is that any user space program that currently assigns a timeval structure to these members rather than writing the tv_sec/tv_usec portions individually will suffer a compile-time error when built with an updated kernel header. Fixing this error makes it work fine with old and new headers though. We could address problem a) by using '__u32' or 'int' members rather than 'long', but that would have a more significant downside in also breaking support for all existing 64-bit user binaries that might be using this interface, which is likely not acceptable. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Cc: linux-can@vger.kernel.org Cc: linux-api@vger.kernel.org Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-10-13cfg80211: Add multiple scan plans for scheduled scanAvraham Stern
Add the option to configure multiple 'scan plans' for scheduled scan. Each 'scan plan' defines the number of scan cycles and the interval between scans. The scan plans are executed in the order they were configured. The last scan plan will always run infinitely and thus defines only the interval between scans. The maximum number of scan plans supported by the device and the maximum number of iterations in a single scan plan are advertised to userspace so it can configure the scan plans appropriately. When scheduled scan results are received there is no way to know which scan plan is being currently executed, so there is no way to know when the next scan iteration will start. This is not a problem, however. The scan start timestamp is only used for flushing old scan results, and there is no difference between flushing all results received until the end of the previous iteration or the start of the current one, since no results will be received in between. Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-13nl80211: allow BSS data to include CLOCK_BOOTTIME timestampDmitry Shmidt
For location and connectivity services, userspace would often like to know the time when the BSS was last seen. The current "last seen" value is calculated in a way that makes it less useful, especially if the system suspended in the meantime. Add the ability for the driver to report a real CLOCK_BOOTTIME stamp that can then be reported to userspace (if present). Drivers wishing to use this must be converted to the new API to call cfg80211_inform_bss_data() or cfg80211_inform_bss_frame_data(). They need to ensure the reported value is accurate enough even when the frame might have been buffered in the device (e.g. firmware.) Signed-off-by: Dmitry Shmidt <dimitrysh@google.com> [modified to use struct, inlines] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-12rtnetlink: fix gcc -Wconversion warningArad, Ronen
RTA_ALIGNTO is currently define as 4. It has to be 4U to prevent warning for RTA_ALIGN and RTA_DATA expansions when -Wconversion gcc option is enabled. This follows NLMSG_ALIGNTO definition in <include/uapi/linux/netlink.h>. Signed-off-by: Ronen Arad <ronen.arad@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-12Merge 4.3-rc5 into usb-nextGreg Kroah-Hartman
We want the USB fixes in here as well to make merges easier. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-12Merge 4.3-rc5 into staging-nextGreg Kroah-Hartman
We want the fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-12efifb: Add support for 64-bit frame buffer addressesMatt Fleming
The EFI Graphics Output Protocol uses 64-bit frame buffer addresses but these get truncated to 32-bit by the EFI boot stub when storing the address in the 'lfb_base' field of 'struct screen_info'. Add a 'ext_lfb_base' field for the upper 32-bits of the frame buffer address and set VIDEO_TYPE_CAPABILITY_64BIT_BASE when the field is useable. It turns out that the reason no one has required this support so far is that there's actually code in tianocore to "downgrade" PCI resources that have option ROMs and 64-bit BARS from 64-bit to 32-bit to cope with legacy option ROMs that can't handle 64-bit addresses. The upshot is that basically all GOP devices in the wild use a 32-bit frame buffer address. Still, it is possible to build firmware that uses a full 64-bit GOP frame buffer address. Chad did, which led to him reporting this issue. Add support in anticipation of GOP devices using 64-bit addresses more widely, and so that efifb works out of the box when that happens. Reported-by: Chad Page <chad.page@znyx.com> Cc: Pete Hawkins <pete.hawkins@znyx.com> Acked-by: Peter Jones <pjones@redhat.com> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2015-10-12md: Increment version for clustered bitmapsGoldwyn Rodrigues
Add BITMAP_MAJOR_CLUSTERED as 5, in order to prevent older kernels to assemble a clustered device. In order to maximize compatibility, the major version is set to BITMAP_MAJOR_CLUSTERED *only* if the bitmap is clustered. Added MD_FEATURE_CLUSTERED in order to return error for older kernels which would assemble MD even if the bitmap is corrupted. Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com> Signed-off-by: NeilBrown <neilb@suse.com>
2015-10-09nvme: move hardware structures out of the uapi version of nvme.hChristoph Hellwig
Currently all NVMe command and completion structures are exposed to userspace through the uapi version of nvme.h. They are not an ABI between the kernel and userspace, and will change in C-incompatible way for future versions of the spec. Move them to the kernel version of the file and rename the uapi header to nvme_ioctl.h so that userspace can easily detect the presence of the new clean header. Nvme-cli already carries a local copy of the header, so it won't be affected by this move. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2015-10-09Merge branch 'for-4.4/core' into for-4.4/driversJens Axboe
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-10-07openvswitch: Change CT_ATTR_FLAGS to CT_ATTR_COMMITJoe Stringer
Previously, the CT_ATTR_FLAGS attribute, when nested under the OVS_ACTION_ATTR_CT, encoded a 32-bit bitmask of flags that modify the semantics of the ct action. It's more extensible to just represent each flag as a nested attribute, and this requires no additional error checking to reject flags that aren't currently supported. Suggested-by: Ben Pfaff <blp@nicira.com> Signed-off-by: Joe Stringer <joestringer@nicira.com> Acked-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07openvswitch: Extend ct_state match field to 32 bitsJoe Stringer
The ct_state field was initially added as an 8-bit field, however six of the bits are already being used and use cases are already starting to appear that may push the limits of this field. This patch extends the field to 32 bits while retaining the internal representation of 8 bits. This should cover forward compatibility of the ABI for the foreseeable future. This patch also reorders the OVS_CS_F_* bits to be sequential. Suggested-by: Jarno Rajahalme <jrajahalme@nicira.com> Signed-off-by: Joe Stringer <joestringer@nicira.com> Acked-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07openvswitch: Fix typos in CT headersJoe Stringer
These comments hadn't caught up to their implementations, fix them. Fixes: 7f8a436eaa2c "openvswitch: Add conntrack action" Signed-off-by: Joe Stringer <joestringer@nicira.com> Acked-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07bridge: netlink: add support for port's multicast_router attributeNikolay Aleksandrov
Add IFLA_BRPORT_MULTICAST_ROUTER to allow setting/getting port's multicast_router via netlink. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07bridge: netlink: allow to flush port's fdbNikolay Aleksandrov
Add IFLA_BRPORT_FLUSH to allow flushing port's fdb similar to sysfs's flush. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>