- 24 Aug, 2016 5 commits
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Mustafa Ismail authored
iwpbl->iwmr points to the structure that contains iwpbl, which is iwmr. Setting this to NULL would result in writing to freed memory. So just free iwmr, and return. Fixes: d3749841 ("i40iw: add files for iwarp interface") Reported-by:
Stefan Assmann <sassmann@redhat.com> Signed-off-by:
Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by:
Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Mustafa Ismail authored
Memory allocated for iwqp; iwqp->allocated_buffer is freed twice in the create_qp error path. Correct this by having it freed only once in i40iw_free_qp_resources(). Fixes: d3749841 ("i40iw: add files for iwarp interface") Signed-off-by:
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Chris Wilson authored
This file does not use any structs or functions defined by io-mapping.h (nor does it directly use iomap, ioremap, iounamp or friends). Remove it to simplify verification of changes to io-mapping.h The include existed since its inception in commit e126ba97 Author: Eli Cohen <eli@mellanox.com> Date: Sun Jul 7 17:25:49 2013 +0300 mlx5: Add driver for Mellanox Connect-IB adapters which looks like a copy across from the Mellanox ethernet driver. Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Eli Cohen <eli@mellanox.com> Cc: Jack Morgenstein <jackm@dev.mellanox.co.il> Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: Matan Barak <matanb@mellanox.com> Cc: Leon Romanovsky <leonro@mellanox.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: linux-rdma@vger.kernel.org Reviewed-by:
Leon Romanovsky <leonro@mellanox.com> Reviewed-by:
Laurence Oberman <loberman@redhat.com> Tested-by:
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Mustafa Ismail authored
In i40iw_free_virt_mem(), do not set mem->va to NULL after freeing it as mem->va is a self-referencing pointer to mem. Fixes: 4e9042e6 ("i40iw: add hw and utils files") Reported-by:
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Shiraz Saleem authored
Add NULL check for pdata and pdata->addr before the memcpy in i40iw_form_cm_frame(). This fixes a NULL pointer de-reference which occurs when the MPA private data pointer is NULL. Also only copy pdata->size bytes in the memcpy to prevent reading past the length of the private data buffer provided by upper layer. Fixes: f27b4746 ("i40iw: add connection management code") Reported-by:
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- 23 Aug, 2016 6 commits
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Bharat Potnuri authored
Current cxgb4 arm CQ logic ignores IB_CQ_REPORT_MISSED_EVENTS for request completion notification on a CQ. Due to this ib_poll_handler() assumes all events polled and avoids further iopoll scheduling. This patch adds logic to cxgb4 ib_req_notify_cq() handler to check if CQ is not empty and return accordingly. Based on the return value of ib_req_notify_cq() handler, ib_poll_handler() will schedule a run of iopoll handler. Signed-off-by:
Potnuri Bharat Teja <bharat@chelsio.com> Reviewed-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
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Mustafa Ismail authored
In i40iw_open(), check if interface is already open and return success if it is. Fixes: 8e06af71 ("i40iw: add main, hdr, status") Reported-by:
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Mustafa Ismail authored
In i40iw_alloc_resource(), ensure that the update to req_resource_num is protected by the lock. Fixes: 8e06af71 ("i40iw: add main, hdr, status") Reported-by:
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Shiraz Saleem authored
iwdev->mem_resources is incorrectly defined as an unsigned long instead of u8. As a result, the offset into the dynamic allocated structures in i40iw_initialize_hw_resources() is incorrectly calculated and would lead to writing of memory regions outside of the allocated buffer. Fixes: 8e06af71 ("i40iw: add main, hdr, status") Reported-by:
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Markus Elfring authored
* Reuse existing functionality from memdup_user() instead of keeping duplicate source code. This issue was detected by using the Coccinelle software. * The local variable "ret" will be set to an appropriate value a bit later. Thus omit the explicit initialisation at the beginning. Signed-off-by:
Markus Elfring <elfring@users.sourceforge.net> Signed-off-by:
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Markus Elfring authored
Reuse existing functionality from memdup_user() instead of keeping duplicate source code. This issue was detected by using the Coccinelle software. Signed-off-by:
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- 22 Aug, 2016 20 commits
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Steve Wise authored
The i40iw initiator sends an MPA-request with ird=16 and ord=16. The cxgb4 responder sends an MPA-reply with ord = 32 causing i40iw to terminate due to insufficient resources. The logic to reduce the ORD to <= peer's IRD was wrong. Reported-by:
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Steve Wise authored
The i40iw initiator sends an MPA-request with ird = 63, ord = 63. The cxgb4 responder sends a RST. Since the inbound ord=63 and it exceeds the max_ird/c4iw_max_read_depth (=32 default), chelsio decides to abort. Instead, cxgb4 should adjust the ord/ird down before presenting it to the ULP. Reported-by:
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Ira Weiny authored
Testing with CONFIG_SLUB_DEBUG_ON=y resulted in the kernel panic below. This is the result of the mm_struct sometimes being free'd prior to hfi1_file_close being called. This was due to the combination of 2 reasons: 1) hfi1_file_close is deferred in process exit and it therefore may not be called synchronously with process exit. 2) exit_mm is called prior to exit_files in do_exit. Normally this is ok however, our kernel bypass code requires us to have access to the mm_struct for house keeping both at "normal" close time as well as at process exit. Therefore, the fix is to simply keep a reference to the mm_struct until we are done with it. [ 3006.340150] general protection fault: 0000 [#1] SMP [ 3006.346469] Modules linked in: hfi1 rdmavt rpcrdma ib_isert iscsi_target_mod ib_iser libiscsi scsi_transport_iscsi ib_srpt target_core_mod ib_srp scsi_transport_srp ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm dm_mirror dm_region_hash dm_log dm_mod snd_hda_code c_realtek iTCO_wdt snd_hda_codec_generic iTCO_vendor_support sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp coretemp kvm irqbypass c rct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel lrw snd_hda_intel gf128mul snd_hda_codec glue_helper snd_hda_core ablk_helper sn d_hwdep cryptd snd_seq snd_seq_device snd_pcm snd_timer snd soundcore pcspkr shpchp mei_me sg lpc_ich mei i2c_i801 mfd_core ioatdma ipmi_devi ntf wmi ipmi_si ipmi_msghandler acpi_cpufreq nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables ext4 jbd2 mbcache mlx4_en ib_core sr_mod s d_mod cdrom crc32c_intel mgag200 drm_kms_helper syscopyarea sysfillrect igb sysimgblt fb_sys_fops ptp mlx4_core ttm isci pps_core ahci drm li bsas libahci dca firewire_ohci i2c_algo_bit scsi_transport_sas firewire_core crc_itu_t i2c_core libata [last unloaded: mlx4_ib] [ 3006.461759] CPU: 16 PID: 11624 Comm: mpi_stress Not tainted 4.7.0-rc5+ #1 [ 3006.469915] Hardware name: Intel Corporation W2600CR ........../W2600CR, BIOS SE5C600.86B.01.08.0003.022620131521 02/26/2013 [ 3006.483027] task: ffff8804102f0040 ti: ffff8804102f8000 task.ti: ffff8804102f8000 [ 3006.491971] RIP: 0010:[<ffffffff810f0383>] [<ffffffff810f0383>] __lock_acquire+0xb3/0x19e0 [ 3006.501905] RSP: 0018:ffff8804102fb908 EFLAGS: 00010002 [ 3006.508447] RAX: 6b6b6b6b6b6b6b6b RBX: 0000000000000001 RCX: 0000000000000000 [ 3006.517012] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff880410b56a40 [ 3006.525569] RBP: ffff8804102fb9b0 R08: 0000000000000001 R09: 0000000000000000 [ 3006.534119] R10: ffff8804102f0040 R11: 0000000000000000 R12: 0000000000000000 [ 3006.542664] R13: ffff880410b56a40 R14: 0000000000000000 R15: 0000000000000000 [ 3006.551203] FS: 00007ff478c08700(0000) GS:ffff88042e200000(0000) knlGS:0000000000000000 [ 3006.560814] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3006.567806] CR2: 00007f667f5109e0 CR3: 0000000001c06000 CR4: 00000000000406e0 [ 3006.576352] Stack: [ 3006.579157] ffffffff8124b819 ffffffffffffffff 0000000000000000 ffff8804102fb940 [ 3006.588072] 0000000000000002 0000000000000000 ffff8804102f0040 0000000000000007 [ 3006.596971] 0000000000000006 ffff8803cad6f000 0000000000000000 ffff8804102f0040 [ 3006.605878] Call Trace: [ 3006.609220] [<ffffffff8124b819>] ? uncharge_batch+0x109/0x250 [ 3006.616382] [<ffffffff810f2313>] lock_acquire+0xd3/0x220 [ 3006.623056] [<ffffffffa0a30bfc>] ? hfi1_release_user_pages+0x7c/0xa0 [hfi1] [ 3006.631593] [<ffffffff81775579>] down_write+0x49/0x80 [ 3006.638022] [<ffffffffa0a30bfc>] ? hfi1_release_user_pages+0x7c/0xa0 [hfi1] [ 3006.646569] [<ffffffffa0a30bfc>] hfi1_release_user_pages+0x7c/0xa0 [hfi1] [ 3006.654898] [<ffffffffa0a2efb6>] cacheless_tid_rb_remove+0x106/0x330 [hfi1] [ 3006.663417] [<ffffffff810efd36>] ? mark_held_locks+0x66/0x90 [ 3006.670498] [<ffffffff817771f6>] ? _raw_spin_unlock_irqrestore+0x36/0x60 [ 3006.678741] [<ffffffffa0a2f1ee>] tid_rb_remove+0xe/0x10 [hfi1] [ 3006.686010] [<ffffffffa0a0c5d5>] hfi1_mmu_rb_unregister+0xc5/0x100 [hfi1] [ 3006.694387] [<ffffffffa0a2fcb9>] hfi1_user_exp_rcv_free+0x39/0x120 [hfi1] [ 3006.702732] [<ffffffffa09fc6ea>] hfi1_file_close+0x17a/0x330 [hfi1] [ 3006.710489] [<ffffffff81263e9a>] __fput+0xfa/0x230 [ 3006.716595] [<ffffffff8126400e>] ____fput+0xe/0x10 [ 3006.722696] [<ffffffff810b95c6>] task_work_run+0x86/0xc0 [ 3006.729379] [<ffffffff81099933>] do_exit+0x323/0xc40 [ 3006.735672] [<ffffffff8109a2dc>] do_group_exit+0x4c/0xc0 [ 3006.742371] [<ffffffff810a7f55>] get_signal+0x345/0x940 [ 3006.748958] [<ffffffff810340c7>] do_signal+0x37/0x700 [ 3006.755328] [<ffffffff8127872a>] ? poll_select_set_timeout+0x5a/0x90 [ 3006.763146] [<ffffffff811609cb>] ? __audit_syscall_exit+0x1db/0x260 [ 3006.770853] [<ffffffff8110f3e3>] ? rcu_read_lock_sched_held+0x93/0xa0 [ 3006.778765] [<ffffffff812347a4>] ? kfree+0x1e4/0x2a0 [ 3006.784986] [<ffffffff8108e75a>] ? exit_to_usermode_loop+0x33/0xac [ 3006.792551] [<ffffffff8108e785>] exit_to_usermode_loop+0x5e/0xac [ 3006.799907] [<ffffffff81003dca>] do_syscall_64+0x12a/0x190 [ 3006.806664] [<ffffffff81777a7f>] entry_SYSCALL64_slow_path+0x25/0x25 [ 3006.814396] Code: 24 08 44 89 44 24 10 89 4c 24 18 e8 a8 d8 ff ff 48 85 c0 8b 4c 24 18 44 8b 44 24 10 44 8b 4c 24 08 4c 8b 14 24 0f 84 30 08 00 00 <f0> ff 80 98 01 00 00 8b 3d 48 ad be 01 45 8b a2 90 0b 00 00 85 [ 3006.837158] RIP [<ffffffff810f0383>] __lock_acquire+0xb3/0x19e0 [ 3006.844401] RSP <ffff8804102fb908> [ 3006.851170] ---[ end trace b7b9f21cf06c27df ]--- [ 3006.927420] Kernel panic - not syncing: Fatal exception [ 3006.933954] Kernel Offset: disabled [ 3006.940961] ---[ end Kernel panic - not syncing: Fatal exception [ 3006.948249] ------------[ cut here ]------------ Fixes: 3faa3d9a ("IB/hfi1: Make use of mm consistent") Reviewed-by:
Dean Luick <dean.luick@intel.com> Signed-off-by:
Ira Weiny <ira.weiny@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
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Mike Marciniszyn authored
The unwind logic for creating a user QP has a double vfree of the non-shared receive queue when handling a "too many qps" failure. The code unwinds the mmmap info by decrementing a reference count which will call rvt_release_mmap_info() which in turn does the vfree() of the r_rq.wq. The unwind code then does the same free. Fix by guarding the vfree() with the same test that is done in close and only do the vfree() if qp->ip is NULL. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
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Mitko Haralanov authored
Previously, J_KEY generation was based on the lower 16 bits of the user's UID. While this works, it was not good enough as a non-root user could collide with a root user given a sufficiently large UID. This patch attempt to improve the J_KEY generation by using the following algorithm: The 16 bit J_KEY space is partitioned into 3 separate spaces reserved for different user classes: * all users with administtor privileges (including 'root') will use J_KEYs in the range of 0 to 31, * all kernel protocols, which use KDETH packets will use J_KEYs in the range of 32 to 63, and * all other users will use J_KEYs in the range of 64 to 65535. The above separation is aimed at preventing different user levels from sending packets to each other and, additionally, separate kernel protocols from all other types of users. The later is meant to prevent the potential corruption of kernel memory by any other type of user. Reviewed-by:Mitko Haralanov <mitko.haralanov@intel.com> Signed-off-by:
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Easwar Hariharan authored
The driver does not check if the CableInfo query is supported for the port type. Return early if CableInfo is not supported for the port type, making compliance with the specification explicit and preventing lower level code from potentially doing the wrong thing if the query is not supported for the hardware implementation. Reviewed-by:
Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by:
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Leon Romanovsky authored
The Soft RoCE (rxe) is located in drivers/inifiniband/sw and not in drivers/infiniband/hw/. This patch fixes it. Fixes: 8700e3e7 ("Soft RoCE driver") Signed-off-by:
Leon Romanovsky <leon@kernel.org> Signed-off-by:
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Christophe Jaillet authored
If 'pci_register_driver' fails, we return 'err' which is known to be 0. Return the error instead. Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
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Christophe Jaillet authored
It is likely that checking the result of 'setup_ctxt' is expected here. Signed-off-by:
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Wei Yongjun authored
The callback function of call_rcu() just calls a kfree(), so we can use kfree_rcu() instead of call_rcu() + callback function. Signed-off-by:
Wei Yongjun <weiyj.lk@gmail.com> Tested-by:
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Mike Marciniszyn authored
Validate the etype to insure that the header is correct. Reviewed-by:
Don Hiatt <don.hiatt@intel.com> Signed-off-by:
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Mike Marciniszyn authored
The "packet" parameter was being passed on the stack, change it to a pointer. Reviewed-by:
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Easwar Hariharan authored
The monitor values from bytes 22 through 81 of the QSFP memory space (SFF 8636) are dynamic and serving them out of the QSFP memory cache maintained by the driver provides stale data to the CableInfo SMA query. This patch refreshes the dynamic values from the QSFP memory on request and overwrites the stale data from the cache for the overlap between the requested range and the monitor range. Reviewed-by:
Jubin John <jubin.john@intel.com> Reviewed-by:
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Mike Marciniszyn authored
The qp init function does a kzalloc() while holding the RCU lock that encounters the following warning with a debug kernel when a cat of the qp_stats is done: [ 231.723948] rcu_scheduler_active = 1, debug_locks = 0 [ 231.731939] 3 locks held by cat/11355: [ 231.736492] #0: (debugfs_srcu){......}, at: [<ffffffff813001a5>] debugfs_use_file_start+0x5/0x90 [ 231.746955] #1: (&p->lock){+.+.+.}, at: [<ffffffff81289a6c>] seq_read+0x4c/0x3c0 [ 231.755873] #2: (rcu_read_lock){......}, at: [<ffffffffa0a0c535>] _qp_stats_seq_start+0x5/0xd0 [hfi1] [ 231.766862] The init functions do an implicit next which requires the rcu read lock before the kzalloc(). Fix for both drivers is to change the scope of the init function to only do the allocation and the initialization of the just allocated iter. The implict next is moved back into the respective start functions to fix the issue. Signed-off-by: -
Wei Yongjun authored
Remove duplicated include. Signed-off-by:
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Wei Yongjun authored
Fix to return error code -ENOMEM from the alloc error handling case instead of 0, as done elsewhere in this function. Signed-off-by:
Sagi Grimberg <sagi@grimberg.me> Reviewed-by:
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Wei Yongjun authored
'work' and 'route->path_rec' are malloced in cma_resolve_iboe_route() and should be freed before leaving from the error handling cases, otherwise it will cause memory leak. Fixes: 20029832 ('IB/core: Validate route when we init ah') Signed-off-by:
Haggai Eran <haggaie@mellanox.com> Signed-off-by:
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Tadeusz Struk authored
If CONFIG_FRAME_WARN is small (1K) and CONFIG_NR_CPUS big then a frame size warning is triggered during build. Allocate the cpu mask dynamically to silence the warning. Reviewed-by:
Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by:
Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by:
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Yuval Shaia authored
Error code EAGAIN should be used when errors are temporary and next call might succeeds. When error code other than EAGAIN is returned, the caller (mlx4_ib_poll) will assume all CQE in the same bunch are error too and will drop them all. Signed-off-by:
Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by:
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Yuval Shaia authored
No need to return int if function always returns 0 Signed-off-by:
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- 21 Aug, 2016 3 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linuxLinus Torvalds authored
Pull two parisc fixes from Helge Deller: "The first patch ensures that the high-res cr16 clocksource (which was added in kernel 4.7) gets choosen as default clocksource for parisc. The second patch moves the #define of EREFUSED down inside errno.h and thus unbreaks building the gccgo compiler" * 'parisc-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix order of EREFUSED define in errno.h parisc: Fix automatic selection of cr16 clocksource
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Tony Luck authored
This is an entirely new driver instead of yet another set of patches to sb_edac.c because: 1) Mapping from PCI devices to socket/memory controller is significantly different. Skylake scatters devices on a socket across a number of PCI buses. 2) There is an extra level of interleaving via the "mcroute" register that would be a little messy to squeeze into the old driver. 3) Validation is getting too expensive. Changes to sb_edac need to be checked against Sandy Bridge, Ivy Bridge, Haswell, Broadwell and Knights Landing. Acked-by:
Aristeu Rozanski <aris@redhat.com> Acked-by:
Borislav Petkov <bp@suse.de> Signed-off-by:
Tony Luck <tony.luck@intel.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- 20 Aug, 2016 2 commits
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Helge Deller authored
When building gccgo in userspace, errno.h gets parsed and the go include file sysinfo.go is generated. Since EREFUSED is defined to the same value as ECONNREFUSED, and ECONNREFUSED is defined later on in errno.h, this leads to go complaining that EREFUSED isn't defined yet. Fix this trivial problem by moving the define of EREFUSED down after ECONNREFUSED in errno.h (and clean up the indenting while touching this line). Signed-off-by:Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org
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Helge Deller authored
Commit 54b66800 (parisc: Add native high-resolution sched_clock() implementation) added support to use the CPU-internal cr16 counters as reliable clocksource with the help of HAVE_UNSTABLE_SCHED_CLOCK. Sadly the commit missed to remove the hack which prevented cr16 to become the default clocksource even on SMP systems. Signed-off-by:
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- 19 Aug, 2016 4 commits
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Linus Torvalds authored
The kernel test robot reported a usercopy failure in the new hardened sanity checks, due to a page-crossing copy of the FPU state into the task structure. This happened because the kernel test robot was testing with SLOB, which doesn't actually do the required book-keeping for slab allocations, and as a result the hardening code didn't realize that the task struct allocation was one single allocation - and the sanity checks fail. Since SLOB doesn't even claim to support hardening (and you really shouldn't use it), the straightforward solution is to just make the usercopy hardening code depend on the allocator supporting it. Reported-by:
kernel test robot <xiaolong.ye@intel.com> Cc: Kees Cook <keescook@chromium.org> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c fixes from Wolfram Sang: "I2C has some pretty standard driver bugfixes and one minor cleanup" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: meson: Use complete() instead of complete_all() i2c: brcmstb: Use complete() instead of complete_all() i2c: bcm-kona: Use complete() instead of complete_all() i2c: bcm-iproc: Use complete() instead of complete_all() i2c: at91: fix support of the "alternative command" feature i2c: ocores: add missed clk_disable_unprepare() on failure paths i2c: cros-ec-tunnel: Fix usage of cros_ec_cmd_xfer() i2c: mux: demux-pinctrl: properly roll back when adding adapter fails
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dmLinus Torvalds authored
Pull device mapper fixes from Mike Snitzer: - a stable fix for DM round robin multipath path selector to disable preemption before using this_cpu_ptr() - a slight increase in DM crypt's mempool reserves to make swap ontop of DM crypt more performant - a few DM raid fixes to issues found while testing changes that were merged in v4.8-rc1 * tag 'dm-4.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm raid: support raid0 with missing metadata devices dm raid: enhance attempt_restore_of_faulty_devices() to support more devices dm raid: fix restoring of failed devices regression dm raid: fix frozen recovery regression dm crypt: increase mempool reserve to better support swapping dm round robin: do not use this_cpu_ptr() without having preemption disabled
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "Six fairly small fixes. The ipr, mpt3sas and ses ones all trigger oopses. The megaraid one fixes an attach failure on io mapped only cards, the fcoe one is an obvious problem in the error path and the aacraid one is a theoretical security issue (ability to trick the kernel into a buffer overrun)" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: ses: Fix racy cleanup of /sys in remove_dev() mpt3sas: Fix resume on WarpDrive flash cards ipr: Fix sync scsi scan megaraid_sas: Fix probing cards without io port aacraid: Check size values after double-fetch from user fcoe: Use kfree_skb() instead of kfree()
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