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2016-07-06MAINTAINERS: Remove Jiang Liu from irq domainsThomas Gleixner
Jiang is not longer working for Intel and we have no new mail address. Avoid that people cc him. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-07-06nl80211: Move ACL parsing later to avoid a possible memory leakPurushottam Kushwaha
No support for pbss results in a memory leak for the acl_data (if parse_acl_data succeeds). Fix this by moving the ACL parsing later. Cc: stable@vger.kernel.org Fixes: 34d505193bd10 ("cfg80211: basic support for PBSS network type") Signed-off-by: Purushottam Kushwaha <pkushwah@qti.qualcomm.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2016-07-06x86/perf/intel/rapl: Fix module name collision with powercap intel-raplVille Syrjälä
Since commit 4b6e2571bf00 the rapl perf module calls itself intel-rapl. That name was already in use by the rapl powercap driver, which now fails to load if the perf module is loaded. Fix the problem by renaming the perf module to intel-rapl-perf, so that both modules can coexist. Fixes: 4b6e2571bf00 ("x86/perf/intel/rapl: Make the Intel RAPL PMU driver modular") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Stephane Eranian <eranian@google.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1466694409-3620-1-git-send-email-ville.syrjala@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-07-06workqueue: Fix a typo in workqueue.txtMasanari Iida
This patch fixes a spelling typo in workqueue.txt Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-07-06Merge tag 'sunxi-clk-fixes-for-4.7' of ↵Michael Turquette
https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-fixes Allwinner clock fixes for 4.7 A bunch of changes for the display clocks merged in 4.7
2016-07-06s390/mm: add support for 2GB hugepagesGerald Schaefer
This adds support for 2GB hugetlbfs pages on s390. Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-07-05ipv6: Fix mem leak in rt6i_pcpuMartin KaFai Lau
It was first reported and reproduced by Petr (thanks!) in https://bugzilla.kernel.org/show_bug.cgi?id=119581 free_percpu(rt->rt6i_pcpu) used to always happen in ip6_dst_destroy(). However, after fixing a deadlock bug in commit 9c7370a166b4 ("ipv6: Fix a potential deadlock when creating pcpu rt"), free_percpu() is not called before setting non_pcpu_rt->rt6i_pcpu to NULL. It is worth to note that rt6i_pcpu is protected by table->tb6_lock. kmemleak somehow did not report it. We nailed it down by observing the pcpu entries in /proc/vmallocinfo (first suggested by Hannes, thanks!). Signed-off-by: Martin KaFai Lau <kafai@fb.com> Fixes: 9c7370a166b4 ("ipv6: Fix a potential deadlock when creating pcpu rt") Reported-by: Petr Novopashenniy <pety@rusnet.ru> Tested-by: Petr Novopashenniy <pety@rusnet.ru> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: Petr Novopashenniy <pety@rusnet.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05net: fix decnet rtnexthop parsingVegard Nossum
dn_fib_count_nhs() could enter an infinite loop if nhp->rtnh_len == 0 (i.e. if userspace passes a malformed netlink message). Let's use the helpers from net/nexthop.h which take care of all this stuff. We can do exactly the same as e.g. fib_count_nexthops() and fib_get_nhs() from net/ipv4/fib_semantics.c. This fixes the softlockup for me. Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05ACPI / debugger: Fix regression introduced by IS_ERR_VALUE() removalLv Zheng
The FIFO unlocking mechanism in acpi_dbg has been broken by the following commit: Commit: 287980e49ffc0f6d911601e7e352a812ed27768e Subject: remove lots of IS_ERR_VALUE abuses It converted !IS_ERR_VALUE(ret) into !ret which was not entirely correct. Fix the regression by taking ret > 0 into account too as appropriate. Fixes: 287980e49ffc (remove lots of IS_ERR_VALUE abuses) Signed-off-by: Lv Zheng <lv.zheng@intel.com> [ rjw: Simplifications, changelog & subject massage ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-07-05platform/chrome: cros_ec_dev - double fetch bug in ioctlDan Carpenter
We verify "u_cmd.outsize" and "u_cmd.insize" but we need to make sure that those values have not changed between the two copy_from_user() calls. Otherwise it could lead to a buffer overflow. Additionally, cros_ec_cmd_xfer() can set s_cmd->insize to a lower value. We should use the new smaller value so we don't copy too much data to the user. Reported-by: Pengfei Wang <wpengfeinudt@gmail.com> Fixes: a841178445bb ('mfd: cros_ec: Use a zero-length array for command data') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Kees Cook <keescook@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Cc: <stable@vger.kernel.org> # v4.2+ Signed-off-by: Olof Johansson <olof@lixom.net>
2016-07-06drm/nouveau/disp/sor/gf119: select correct sor when poking training patternBen Skeggs
Fixes a regression caused by a stupid thinko from "disp/sor/gf119: both links use the same training register". Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org
2016-07-05ACPICA: Namespace: Fix namespace/interpreter lock orderingLv Zheng
There is a lock order issue in acpi_load_tables(). The namespace lock is held before holding the interpreter lock. With ACPI_MUTEX_DEBUG enabled in the kernel, this is printed to the log during boot: [ 0.885699] ACPI Error: Invalid acquire order: Thread 405884224 owns [ACPI_MTX_Namespace], wants [ACPI_MTX_Interpreter] (20160422/utmutex-263) [ 0.885881] ACPI Error: Could not acquire AML Interpreter mutex (20160422/exutils-95) [ 0.893846] ACPI Error: Mutex [0x0] is not acquired, cannot release (20160422/utmutex-326) [ 0.894019] ACPI Error: Could not release AML Interpreter mutex (20160422/exutils-133) The issue has been introduced by the following commit: Commit: 2f38b1b16d9280689e5cfa47a4c50956bf437f0d ACPICA Commit: bfe03ffcde8ed56a7eae38ea0b188aeb12f9c52e Subject: ACPICA: Namespace: Fix a regression that MLC support triggers dead lock in dynamic table loading Which fixed a deadlock issue for acpi_ns_load_table() in acpi_ex_add_table() but didn't take care of the lock order in acpi_ns_load_table() correctly. Originally (before the above commit), ACPICA used the namespace/interpreter locks in the following 2 key code paths: 1. Table loading: acpi_ns_load_table L(Namespace) acpi_ns_parse_table acpi_ns_one_complete_parse U(Namespace) 2. Object evaluation: acpi_ns_evaluate L(Interpreter) acpi_ps_execute_method U(Interpreter) acpi_ns_load_table L(Namespace) U(Namespace) acpi_ev_initialize_region L(Namespace) U(Namespace) address_space.setup L(Namespace) U(Namespace) address_space.handler L(Namespace) U(Namespace) acpi_os_wait_semaphore acpi_os_acquire_mutex acpi_os_sleep L(Interpreter) U(Interpreter) During runtime, while acpi_ns_evaluate is called, the lock order is always Interpreter -> Namespace. In turn, the problematic commit acquires the locks in the following order: 3. Table loading: acpi_ns_load_table L(Namespace) acpi_ns_parse_table L(Interpreter) acpi_ns_one_complete_parse U(Interpreter) U(Namespace) To fix the lock order issue, move the interpreter lock to acpi_ns_load_table() to ensure the lock order correctness: 4. Table loading: acpi_ns_load_table L(Interpreter) L(Namespace) acpi_ns_parse_table acpi_ns_one_complete_parse U(Namespace) U(Interpreter) However, this doesn't fix the current design issues related to the namespace lock. For example, we can notice that in acpi_ns_evaluate(), outside of acpi_ns_load_table(), the namespace objects may be created by the named object creation control methods. And the creation of the method-owned namespace objects are not locked by the namespace lock. This patch doesn't try to fix such kind of existing issues. Fixes: 2f38b1b16d92 (ACPICA: Namespace: Fix a regression that MLC support triggers dead lock in dynamic table loading) Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-07-05drivers:iio:accel:mma8452: removed unwanted return statementsBijosh Thykkoottathil
Removed unwanted return statements from the function mma8452_set_freefall_mode. Signed-off-by: Bijosh Thykkoottathil <bijosh.t@hotmail.com> Acked-by: Martin Kepplinger <martink@posteo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-05drivers:iio:accel:mma8452: added cleanup provision in case of failure.Bijosh Thykkoottathil
mma8452_set_freefall_mode can return -ve value in case if i2c_smbus_read_byte_data fails. This function is called from mma8452_probe, and returning -ve value from probe indicates probe failure. Need to call iio_triggered_buffer_cleanup & iio_trigger_cleanup in this case. Signed-off-by: Bijosh Thykkoottathil <bijosh.t@hotmail.com> Acked-by: Martin Kepplinger <martink@posteo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-05nfs_atomic_open(): prevent parallel nfs_lookup() on a negative hashedAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-07-05Use the right predicate in ->atomic_open() instancesAl Viro
->atomic_open() can be given an in-lookup dentry *or* a negative one found in dcache. Use d_in_lookup() to tell one from another, rather than d_unhashed(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-07-05qla2xxx: Fix NULL pointer deref in QLA interruptBruno Prémont
In qla24xx_process_response_queue() rsp->msix->cpuid may trigger NULL pointer dereference when rsp->msix is NULL: [ 5.622457] NULL pointer dereference at 0000000000000050 [ 5.622457] IP: [<ffffffff8155e614>] qla24xx_process_response_queue+0x44/0x4b0 [ 5.622457] PGD 0 [ 5.622457] Oops: 0000 [#1] SMP [ 5.622457] Modules linked in: [ 5.622457] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.6.3-x86_64 #1 [ 5.622457] Hardware name: HP ProLiant DL360 G5, BIOS P58 05/02/2011 [ 5.622457] task: ffff8801a88f3740 ti: ffff8801a8954000 task.ti: ffff8801a8954000 [ 5.622457] RIP: 0010:[<ffffffff8155e614>] [<ffffffff8155e614>] qla24xx_process_response_queue+0x44/0x4b0 [ 5.622457] RSP: 0000:ffff8801afb03de8 EFLAGS: 00010002 [ 5.622457] RAX: 0000000000000000 RBX: 0000000000000032 RCX: 00000000ffffffff [ 5.622457] RDX: 0000000000000002 RSI: ffff8801a79bf8c8 RDI: ffff8800c8f7e7c0 [ 5.622457] RBP: ffff8801afb03e68 R08: 0000000000000000 R09: 0000000000000000 [ 5.622457] R10: 00000000ffff8c47 R11: 0000000000000002 R12: ffff8801a79bf8c8 [ 5.622457] R13: ffff8800c8f7e7c0 R14: ffff8800c8f60000 R15: 0000000000018013 [ 5.622457] FS: 0000000000000000(0000) GS:ffff8801afb00000(0000) knlGS:0000000000000000 [ 5.622457] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.622457] CR2: 0000000000000050 CR3: 0000000001e07000 CR4: 00000000000006e0 [ 5.622457] Stack: [ 5.622457] ffff8801afb03e30 ffffffff810c0f2d 0000000000000086 0000000000000002 [ 5.622457] ffff8801afb03e28 ffffffff816570e1 ffff8800c8994628 0000000000000002 [ 5.622457] ffff8801afb03e60 ffffffff816772d4 b47c472ad6955e68 0000000000000032 [ 5.622457] Call Trace: [ 5.622457] <IRQ> [ 5.622457] [<ffffffff810c0f2d>] ? __wake_up_common+0x4d/0x80 [ 5.622457] [<ffffffff816570e1>] ? usb_hcd_resume_root_hub+0x51/0x60 [ 5.622457] [<ffffffff816772d4>] ? uhci_hub_status_data+0x64/0x240 [ 5.622457] [<ffffffff81560d00>] qla24xx_intr_handler+0xf0/0x2e0 [ 5.622457] [<ffffffff810d569e>] ? get_next_timer_interrupt+0xce/0x200 [ 5.622457] [<ffffffff810c89b4>] handle_irq_event_percpu+0x64/0x100 [ 5.622457] [<ffffffff810c8a77>] handle_irq_event+0x27/0x50 [ 5.622457] [<ffffffff810cb965>] handle_edge_irq+0x65/0x140 [ 5.622457] [<ffffffff8101a498>] handle_irq+0x18/0x30 [ 5.622457] [<ffffffff8101a276>] do_IRQ+0x46/0xd0 [ 5.622457] [<ffffffff817f8fff>] common_interrupt+0x7f/0x7f [ 5.622457] <EOI> [ 5.622457] [<ffffffff81020d38>] ? mwait_idle+0x68/0x80 [ 5.622457] [<ffffffff8102114a>] arch_cpu_idle+0xa/0x10 [ 5.622457] [<ffffffff810c1b97>] default_idle_call+0x27/0x30 [ 5.622457] [<ffffffff810c1d3b>] cpu_startup_entry+0x19b/0x230 [ 5.622457] [<ffffffff810324c6>] start_secondary+0x136/0x140 [ 5.622457] Code: 00 00 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 48 8b 47 58 a8 02 0f 84 c5 00 00 00 48 8b 46 50 49 89 f4 65 8b 15 34 bb aa 7e <39> 50 50 74 11 89 50 50 48 8b 46 50 8b 40 50 41 89 86 60 8b 00 [ 5.622457] RIP [<ffffffff8155e614>] qla24xx_process_response_queue+0x44/0x4b0 [ 5.622457] RSP <ffff8801afb03de8> [ 5.622457] CR2: 0000000000000050 [ 5.622457] ---[ end trace fa2b19c25106d42b ]--- [ 5.622457] Kernel panic - not syncing: Fatal exception in interrupt The affected code was introduced by commit cdb898c52d1dfad4b4800b83a58b3fe5d352edde (qla2xxx: Add irq affinity notification). Only dereference rsp->msix when it has been set so the machine can boot fine. Possibly rsp->msix is unset because: [ 3.479679] qla2xxx [0000:00:00.0]-0005: : QLogic Fibre Channel HBA Driver: 8.07.00.33-k. [ 3.481839] qla2xxx [0000:13:00.0]-001d: : Found an ISP2432 irq 17 iobase 0xffffc90000038000. [ 3.484081] qla2xxx [0000:13:00.0]-0035:0: MSI-X; Unsupported ISP2432 (0x2, 0x3). [ 3.485804] qla2xxx [0000:13:00.0]-0037:0: Falling back-to MSI mode -258. [ 3.890145] scsi host0: qla2xxx [ 3.891956] qla2xxx [0000:13:00.0]-00fb:0: QLogic QLE2460 - PCI-Express Single Channel 4Gb Fibre Channel HBA. [ 3.894207] qla2xxx [0000:13:00.0]-00fc:0: ISP2432: PCIe (2.5GT/s x4) @ 0000:13:00.0 hdma+ host#=0 fw=7.03.00 (9496). [ 5.714774] qla2xxx [0000:13:00.0]-500a:0: LOOP UP detected (4 Gbps). Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org> Acked-by: Quinn Tran <quinn.tran@qlogic.com> CC: <stable@vger.kernel.org> # 4.5+ Fixes: cdb898c52d1dfad4b4800b83a58b3fe5d352edde Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>
2016-07-05cxgb4: update latest firmware version supportedGanesh Goudar
Change t4fw_version.h to update latest firmware version number Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05net/mlx5: Avoid setting unused var when modifying vport node GUIDOr Gerlitz
GCC complains on unused-but-set-variable, clean this up. Fixes: 23898c763f4a ('net/mlx5: E-Switch, Modify node guid on vf set MAC') Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05bonding: fix enslavement slave link notificationsAviv Heller
Currently, link notifications are not sent by bond_set_slave_link_state() upon enslavement if the slave is enslaved when up. This happens because slave->link default init value is 0, which is the same as BOND_LINK_UP, resulting in bond_set_slave_link_state() ignoring this transition. This patch sets the default value of slave->link to BOND_LINK_NOCHANGE, assuring it will count as a state transition and thus trigger notification logic. Signed-off-by: Aviv Heller <avivh@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05bcache: Remove redundant block_size assignmentYijing Wang
We have assigned sb->block_size before the switch, so remove the redundant one. Reviewed-by: Coly Li <colyli@suse.de> Signed-off-by: Yijing Wang <wangyijing@huawei.com> Acked-by: Eric Wheeler <bcache@lists.ewheeler.net> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05bcache: update document infoYijing Wang
There is no return in continue_at(), update the documentation. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Acked-by: Coly Li <colyli@suse.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05bcache: Remove redundant parameter for cache_alloc()Yijing Wang
Cache_sb is not used in cache_alloc, and we have copied sb info to cache->sb already, remove it. Reviewed-by: Coly Li <colyli@suse.de> Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05nvme-loop: add a NVMe loopback host driverChristoph Hellwig
This patch implements adds nvme-loop which allows to access local devices exported as NVMe over Fabrics namespaces. This module can be useful for easy evaluation, testing and also feature experimentation. To createa nvme-loop device you need to configure the NVMe target to export a loop port (see the nvmetcli documentaton for that) and then connect to it using nvme connect-all -t loop which requires the very latest nvme-cli version with Fabrics support. Signed-off-by: Jay Freyensee <james.p.freyensee@intel.com> Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05nvmet: add a generic NVMe targetChristoph Hellwig
This patch introduces a implementation of NVMe subsystems, controllers and discovery service which allows to export NVMe namespaces across fabrics such as Ethernet, FC etc. The implementation conforms to the NVMe 1.2.1 specification and interoperates with NVMe over fabrics host implementations. Configuration works using configfs, and is best performed using the nvmetcli tool from http://git.infradead.org/users/hch/nvmetcli.git, which also has a detailed explanation of the required steps in the README file. Signed-off-by: Armen Baloyan <armenx.baloyan@intel.com> Signed-off-by: Anthony Knapp <anthony.j.knapp@intel.com> Signed-off-by: Jay Freyensee <james.p.freyensee@intel.com> Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05block: Export blk_pollSagi Grimberg
The new NVMe over fabrics target will make use of this outside from a module. Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05nvme: add keep-alive supportSagi Grimberg
Periodic keep-alive is a mandatory feature in NVMe over Fabrics, and optional in NVMe 1.2.1 for PCIe. This patch adds periodic keep-alive sent from the host to verify that the controller is still responsive and vice-versa. The keep-alive timeout is user-defined (with keep_alive_tmo connection parameter) and defaults to 5 seconds. In order to avoid a race condition where the host sends a keep-alive competing with the target side keep-alive timeout expiration, the host adds a grace period of 10 seconds when publishing the keep-alive timeout to the target. In case a keep-alive failed (or timed out), a transport specific error recovery kicks in. For now only NVMe over Fabrics is wired up to support keep alive, but we can add PCIe support easily once controllers actually supporting it become available. Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Steve Wise <swise@chelsio.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05nvme.h: Add keep-alive opcode and identify controller attributeSagi Grimberg
KAS: keep-alive support and granularity of kato in units of 100 ms nvme_admin_keep_alive opcode: 0x18 Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05nvme-fabrics: add a generic NVMe over Fabrics libraryChristoph Hellwig
The NVMe over Fabrics library provides an interface for both transports and the nvme core to handle fabrics specific commands and attributes independent of the underlying transport. In addition, the fabrics library adds a misc device interface that allow actually creating a fabrics controller, as we can't just autodiscover it like in the PCI case. The nvme-cli utility has been enhanced to use this interface to support fabric connect and discovery. Signed-off-by: Armen Baloyan <armenx.baloyan@intel.com>, Signed-off-by: Jay Freyensee <james.p.freyensee@intel.com>, Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05nvme.h: add NVMe over Fabrics definitionsChristoph Hellwig
The NVMe over Fabrics specification defines a protocol interface and related extensions to NVMe that enable operation over network protocols. The NVMe over Fabrics specification has an NVMe Transport binding for each NVMe Transport. This patch adds the fabrics related definitions: - fabric specific command set and error codes - transport addressing and binding definitions - fabrics sgl extensions - controller identification fabrics enhancements - discovery log page definition Signed-off-by: Armen Baloyan <armenx.baloyan@intel.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Jay Freyensee <james.p.freyensee@intel.com> Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05nvme: add fabrics sysfs attributesMing Lin
- delete_controller: This attribute allows to delete a controller. A driver is not obligated to support it (pci doesn't) so it is created only if the driver supports it. The new fabrics drivers will support it (essentialy a disconnect operation). Usage: echo > /sys/class/nvme/nvme0/delete_controller - subsysnqn: This attribute shows the subsystem nqn of the configured device. If a driver does not implement the get_subsysnqn method, the file will not appear in sysfs. - transport: This attribute shows the transport name. Added a "name" field to struct nvme_ctrl_ops. For loop, cat /sys/class/nvme/nvme0/transport loop For RDMA, cat /sys/class/nvme/nvme0/transport rdma For PCIe, cat /sys/class/nvme/nvme0/transport pcie - address: This attributes shows the controller address. The fabrics drivers that will implement get_address can show the address of the connected controller. example: cat /sys/class/nvme/nvme0/address traddr=192.168.2.2,trsvcid=1023 Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Reviewed-by: Jay Freyensee <james.p.freyensee@intel.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05nvme: Modify and export sync command submission for fabricsChristoph Hellwig
NVMe over fabrics will use __nvme_submit_sync_cmd in the the transport and require a few tweaks to it. For that we export it and add a few more paramters: 1. allow passing a queue ID to the block layer For the NVMe over Fabrics connect command we need to able to specify a queue ID that we want to send the command on. Add a qid parameter to the relevant functions to enable this behavior. 2. allow submitting at_head commands In cases where we want to (re)connect to a controller where we have inflight queued commands we want to first connect and only then allow the other queued commands to be kicked. This will prevents failures in controller resets and reconnects. 3. allow passing flags to blk_mq_allocate_request Both for Fabrics connect the the keep-alive feature in NVMe 1.2.1 we want to be able to use reserved requests. Reviewed-by: Jay Freyensee <james.p.freyensee@intel.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Tested-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05nvme: allow transitioning from NEW to LIVE stateChristoph Hellwig
For Fabrics we're not going through an intermediate reset state (at least for now). Reviewed-by: Jay Freyensee <james.p.freyensee@intel.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05blk-mq: add blk_mq_alloc_request_hctxMing Lin
For some protocols like NVMe over Fabrics we need to be able to send initialization commands to a specific queue. Based on an earlier patch from Christoph Hellwig <hch@lst.de>. Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> [hch: disallow sleeping allocation, req_op fixes] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-05r8152: fix runtime function for RTL8152hayeswang
The RTL8152 doesn't have U1U2 and U2P3 features, so use different runtime functions for RTL812 and RTL8153 by adding autosuspend_en() to rtl_ops. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05Revert "gpio: gpiolib-of: Allow compile testing"Linus Walleij
This reverts commit 1e4a80640338924b9f9fd7a121ac31d08134410a. This creates more problems than it solves right now. Compile testing needs to go in with patches fixing the problems it uncovers. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-07-06i2c: mux: reg: wrong condition checked for of_address_to_resource return valueLukasz Gemborowski
of_address_to_resource return 0 on successful call but devm_ioremap_resource is called only if it returns non-zero value Signed-off-by: Lukasz Gemborowski <lukasz.gemborowski@nokia.com> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Cc: stable@kernel.org
2016-07-06i2c: tegra: Correct error path in probeJon Hunter
Commit 497fbe24987b ("i2c: tegra: enable multi master mode for tegra210") enables the Tegra I2C 'div_clk' for adapters using the multi-master mode during the device probe. Although the probe error path was updated to disable the clock on probe failure, there is one place after calling tegra_i2c_init() where the clock will not be disabled on failure. Correct the error path so that the 'div_clk' is disabled if calling tegra_i2c_init() fails. Fixes: 497fbe24987b ("i2c: tegra: enable multi master mode for tegra210") Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Acked-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-07-05crypto: qat - Add RSA CRT modeSalvatore Benedetto
Extend qat driver to use RSA CRT mode when all CRT related components are present in the private key. Simplify code in qat_rsa_setkey by adding qat_rsa_clear_ctx. Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-05crypto: testmgr - Add 4K private key to RSA testvectorSalvatore Benedetto
Key generated with openssl. It also contains all fields required for testing CRT mode Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-05crypto: rsa - Store rest of the private key componentsSalvatore Benedetto
When parsing a private key, store all non-optional fields. These are required for enabling CRT mode for decrypt and verify Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-05crypto: qat - Use alternative reset methods depending on the specific deviceConor McLoughlin
Different product families will use FLR or SBR. Virtual Function devices have no reset method. Signed-off-by: Conor McLoughlin <conor.mcloughlin@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-05crypto: bfin_crc - Simplify use of devm_ioremap_resourceAmitoj Kaur Chawla
Remove unneeded error handling on the result of a call to platform_get_resource when the value is passed to devm_ioremap_resource. The Coccinelle semantic patch that makes this change is as follows: // <smpl> @@ expression pdev,res,n,e,e1; expression ret != 0; identifier l; @@ - res = platform_get_resource(pdev, IORESOURCE_MEM, n); ... when != res - if (res == NULL) { ... \(goto l;\|return ret;\) } ... when != res + res = platform_get_resource(pdev, IORESOURCE_MEM, n); e = devm_ioremap_resource(e1, res); // </smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-05crypto: caam - add support for RSA algorithmTudor Ambarus
Add RSA support to caam driver. Initial author is Yashpal Dutta <yashpal.dutta@freescale.com>. Signed-off-by: Tudor Ambarus <tudor-dan.ambarus@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-05crypto: testmgr - Set err before proceedingSalvatore Benedetto
Report correct error in case of failure Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-05crypto: qat - Switch to new rsa_helper functionsSalvatore Benedetto
Drop all asn1 related code and use the new rsa_helper functions rsa_parse_[pub|priv]_key for parsing the key Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-05crypto: powerpc - Add POWER8 optimised crc32cAnton Blanchard
Use the vector polynomial multiply-sum instructions in POWER8 to speed up crc32c. This is just over 41x faster than the slice-by-8 method that it replaces. Measurements on a 4.1 GHz POWER8 show it sustaining 52 GiB/sec. A simple btrfs write performance test: dd if=/dev/zero of=/mnt/tmpfile bs=1M count=4096 sync is over 3.7x faster. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-05powerpc: define FUNC_START/FUNC_ENDAnton Blanchard
gcc provides FUNC_START/FUNC_END macros to help with creating assembly functions. Mirror these in the kernel so we can more easily share code between userspace and the kernel. FUNC_END is just a stub since we don't currently annotate the end of kernel functions. It might make sense to do a wholesale search and replace, but for now just create a couple of defines. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-05tick/broadcast-hrtimer: Set name of the ce_broadcast_hrtimerJisheng Zhang
This is to avoid the "null" name when we either ~ # cat /sys/devices/system/clockevents/broadcast/current_device (null) or ~ # cat /proc/timer_list ... Tick Device: mode: 1 Broadcast device Clock Event Device: (null) ... Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1467709071-3667-1-git-send-email-jszhang@marvell.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-07-05irqchip/mips-gic: Match IPI IRQ domain by bus token onlyPaul Burton
Commit fbde2d7d8290 ("MIPS: Add generic SMP IPI support") introduced code which calls irq_find_matching_host with a NULL node parameter in order to discover IPI IRQ domains which are not associated with the DT root node's interrupt parent. This suggests that implementations of IPI IRQ domains should effectively ignore the node parameter if it is NULL and search purely based upon the bus token. Commit 2af70a962070 ("irqchip/mips-gic: Add a IPI hierarchy domain") did not do this when implementing the GIC IPI IRQ domain, and on MIPS Boston boards this leads to no IPI domain being discovered and a NULL pointer dereference when attempting to send an IPI: CPU 0 Unable to handle kernel paging request at virtual address 0000000000000040, epc == ffffffff8016e70c, ra == ffffffff8010ff5c Oops[#1]: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.7.0-rc6-00223-gad0d1b6 #945 task: a8000000ff066fc0 ti: a8000000ff068000 task.ti: a8000000ff068000 $ 0 : 0000000000000000 0000000000000001 ffffffff80730000 0000000000000003 $ 4 : 0000000000000000 ffffffff8057e5b0 a800000001e3ee00 0000000000000000 $ 8 : 0000000000000000 0000000000000023 0000000000000001 0000000000000001 $12 : 0000000000000000 ffffffff803323d0 0000000000000000 0000000000000000 $16 : 0000000000000000 0000000000000000 0000000000000001 ffffffff801108fc $20 : 0000000000000000 ffffffff8057e5b0 0000000000000001 0000000000000000 $24 : 0000000000000000 ffffffff8012de28 $28 : a8000000ff068000 a8000000ff06fbc0 0000000000000000 ffffffff8010ff5c Hi : ffffffff8014c174 Lo : a800000001e1e140 epc : ffffffff8016e70c __ipi_send_mask+0x24/0x11c ra : ffffffff8010ff5c mips_smp_send_ipi_mask+0x68/0x178 Status: 140084e2 KX SX UX KERNEL EXL Cause : 00800008 (ExcCode 02) BadVA : 0000000000000040 PrId : 0001a920 (MIPS I6400) Process swapper/0 (pid: 1, threadinfo=a8000000ff068000, task=a8000000ff066fc0, tls=0000000000000000) Stack : 0000000000000000 0000000000000000 0000000000000001 ffffffff801108fc 0000000000000000 ffffffff8057e5b0 0000000000000001 ffffffff8010ff5c 0000000000000001 0000000000000020 0000000000000000 0000000000000000 0000000000000000 ffffffff801108fc 0000000000000000 0000000000000001 0000000000000001 0000000000000000 0000000000000000 ffffffff801865e8 a8000000ff0c7500 a8000000ff06fc90 0000000000000001 0000000000000002 ffffffff801108fc ffffffff801868b8 0000000000000000 ffffffff801108fc 0000000000000000 0000000000000003 ffffffff8068c700 0000000000000001 ffffffff80730000 0000000000000001 a8000000ff00a290 ffffffff80110c50 0000000000000003 a800000001e48308 0000000000000003 0000000000000008 ... Call Trace: [<ffffffff8016e70c>] __ipi_send_mask+0x24/0x11c [<ffffffff8010ff5c>] mips_smp_send_ipi_mask+0x68/0x178 [<ffffffff801865e8>] generic_exec_single+0x150/0x170 [<ffffffff801868b8>] smp_call_function_single+0x108/0x160 [<ffffffff80110c50>] cps_boot_secondary+0x328/0x394 [<ffffffff80110534>] __cpu_up+0x38/0x90 [<ffffffff8012de4c>] bringup_cpu+0x24/0xac [<ffffffff8012df40>] cpuhp_up_callbacks+0x58/0xdc [<ffffffff8012e648>] cpu_up+0x118/0x18c [<ffffffff806dc158>] smp_init+0xbc/0xe8 [<ffffffff806d4c18>] kernel_init_freeable+0xa0/0x228 [<ffffffff8056c908>] kernel_init+0x10/0xf0 [<ffffffff80105098>] ret_from_kernel_thread+0x14/0x1c Fix this by allowing the GIC IPI IRQ domain to match purely based upon the bus token if the node provided is NULL. Fixes: 2af70a962070 ("irqchip/mips-gic: Add a IPI hierarchy domain") Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Jason Cooper <jason@lakedaemon.net> Cc: Qais Yousef <qsyousef@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20160705132600.27730-2-paul.burton@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
generated by cgit (git 2.34.1) at 2025-09-17 06:05:36 +0000