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Mitko Haralanov [Wed, 20 Apr 2016 13:05:36 +0000 (06:05 -0700)]
IB/hfi1: Don't attempt to free resources if initialization failed
Attempting to free resources which have not been allocated and
initialized properly led to the following kernel backtrace:
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<
ffffffffa09658fe>] unlock_exp_tids.isra.8+0x2e/0x120 [hfi1]
PGD
852a43067 PUD
85d4a6067 PMD 0
Oops: 0000 [#1] SMP
CPU: 0 PID: 2831 Comm: osu_bw Tainted: G IO 3.12.18-wfr+ #1
task:
ffff88085b15b540 ti:
ffff8808588fe000 task.ti:
ffff8808588fe000
RIP: 0010:[<
ffffffffa09658fe>] [<
ffffffffa09658fe>] unlock_exp_tids.isra.8+0x2e/0x120 [hfi1]
RSP: 0018:
ffff8808588ffde0 EFLAGS:
00010282
RAX:
0000000000000000 RBX:
ffff880858a31800 RCX:
0000000000000000
RDX:
ffff88085d971bc0 RSI:
ffff880858a318f8 RDI:
ffff880858a318c0
RBP:
ffff8808588ffe20 R08:
0000000000000000 R09:
0000000000000000
R10:
ffff88087ffd6f40 R11:
0000000001100348 R12:
ffff880852900000
R13:
ffff880858a318c0 R14:
0000000000000000 R15:
ffff88085d971be8
FS:
00007f4674e83740(0000) GS:
ffff88087f400000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
0000000000000000 CR3:
000000085c377000 CR4:
00000000001407f0
Stack:
ffffffffa0941a71 ffff880858a318f8 ffff88085d971bc0 ffff880858a31800
ffff880852900000 ffff880858a31800 00000000003ffff7 ffff88085d971bc0
ffff8808588ffe60 ffffffffa09663fc ffff8808588ffe60 ffff880858a31800
Call Trace:
[<
ffffffffa0941a71>] ? find_mmu_handler+0x51/0x70 [hfi1]
[<
ffffffffa09663fc>] hfi1_user_exp_rcv_free+0x6c/0x120 [hfi1]
[<
ffffffffa0932809>] hfi1_file_close+0x1a9/0x340 [hfi1]
[<
ffffffff8116c189>] __fput+0xe9/0x270
[<
ffffffff8116c35e>] ____fput+0xe/0x10
[<
ffffffff81065707>] task_work_run+0xa7/0xe0
[<
ffffffff81002969>] do_notify_resume+0x59/0x80
[<
ffffffff814ffc1a>] int_signal+0x12/0x17
This commit re-arranges the context initialization code in a way that
would allow for context event flags to be used to determine whether
the context has been successfully initialized.
In turn, this can be used to skip the resource de-allocation if they
were never allocated in the first place.
Fixes:
3abb33ac6521 ("staging/hfi1: Add TID cache receive init and free funcs")
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com.
Signed-off-by: Doug Ledford <dledford@redhat.com>
Mike Marciniszyn [Wed, 20 Apr 2016 13:05:30 +0000 (06:05 -0700)]
IB/hfi1: Fix missing lock/unlock in verbs drain callback
The iowait_sdma_drained() callback lacked locking to
protect the qp s_flags field.
This causes the s_flags to be out of sync
on multiple CPUs, potentially corrupting the s_flags.
Fixes:
a545f5308b6c ("staging/rdma/hfi: fix CQ completion order issue")
Reviewed-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Jubin John [Tue, 12 Apr 2016 17:47:00 +0000 (10:47 -0700)]
IB/rdmavt: Fix send scheduling
call_send is used to determine whether to send immediately or schedule
a send for later. The current logic in rdmavt is inverted and has a
negative impact on the latency of the hfi1 and qib drivers. Fix this
regression by correctly calling send immediately when call_send is set.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Mitko Haralanov [Tue, 12 Apr 2016 17:46:16 +0000 (10:46 -0700)]
IB/hfi1: Prevent unpinning of wrong pages
The routine used by the SDMA cache to handle already
cached nodes can extend an already existing node.
In its error handling code, the routine will unpin pages
when not all pages of the buffer extension were pinned.
There was a bug in that part of the routine, which would
mistakenly unpin pages from the original set rather than
the newly pinned pages.
This commit fixes that bug by offsetting the page array
to the proper place pointing at the beginning of the newly
pinned pages.
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Mitko Haralanov [Tue, 12 Apr 2016 17:46:03 +0000 (10:46 -0700)]
IB/hfi1: Fix deadlock caused by locking with wrong scope
The locking around the interval RB tree is designed to prevent
access to the tree while it's being modified. The locking in its
current form is too overzealous, which is causing a deadlock in
certain cases with the following backtrace:
Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu 0
CPU: 0 PID: 5836 Comm: IMB-MPI1 Tainted: G O 3.12.18-wfr+ #1
0000000000000000 ffff88087f206c50 ffffffff814f1caa ffffffff817b53f0
ffff88087f206cc8 ffffffff814ecd56 0000000000000010 ffff88087f206cd8
ffff88087f206c78 0000000000000000 0000000000000000 0000000000001662
Call Trace:
<NMI> [<
ffffffff814f1caa>] dump_stack+0x45/0x56
[<
ffffffff814ecd56>] panic+0xc2/0x1cb
[<
ffffffff810d4370>] ? restart_watchdog_hrtimer+0x50/0x50
[<
ffffffff810d4432>] watchdog_overflow_callback+0xc2/0xd0
[<
ffffffff81109b4e>] __perf_event_overflow+0x8e/0x2b0
[<
ffffffff8110a714>] perf_event_overflow+0x14/0x20
[<
ffffffff8101c906>] intel_pmu_handle_irq+0x1b6/0x390
[<
ffffffff814f927b>] perf_event_nmi_handler+0x2b/0x50
[<
ffffffff814f8ad8>] nmi_handle.isra.3+0x88/0x180
[<
ffffffff814f8d39>] do_nmi+0x169/0x310
[<
ffffffff814f8177>] end_repeat_nmi+0x1e/0x2e
[<
ffffffff81272600>] ? unmap_single+0x30/0x30
[<
ffffffff814f780d>] ? _raw_spin_lock_irqsave+0x2d/0x40
[<
ffffffff814f780d>] ? _raw_spin_lock_irqsave+0x2d/0x40
[<
ffffffff814f780d>] ? _raw_spin_lock_irqsave+0x2d/0x40
<<EOE>> <IRQ> [<
ffffffffa056c4a8>] hfi1_mmu_rb_search+0x38/0x70 [hfi1]
[<
ffffffffa05919cb>] user_sdma_free_request+0xcb/0x120 [hfi1]
[<
ffffffffa0593393>] user_sdma_txreq_cb+0x263/0x350 [hfi1]
[<
ffffffffa057fad7>] ? sdma_txclean+0x27/0x1c0 [hfi1]
[<
ffffffffa0593130>] ? user_sdma_send_pkts+0x1710/0x1710 [hfi1]
[<
ffffffffa057fdd6>] sdma_make_progress+0x166/0x480 [hfi1]
[<
ffffffff810762c9>] ? ttwu_do_wakeup+0x19/0xd0
[<
ffffffffa0581c7e>] sdma_engine_interrupt+0x8e/0x100 [hfi1]
[<
ffffffffa0546bdd>] sdma_interrupt+0x5d/0xa0 [hfi1]
[<
ffffffff81097e57>] handle_irq_event_percpu+0x47/0x1d0
[<
ffffffff81098017>] handle_irq_event+0x37/0x60
[<
ffffffff8109aa5f>] handle_edge_irq+0x6f/0x120
[<
ffffffff810044af>] handle_irq+0xbf/0x150
[<
ffffffff8104c9b7>] ? irq_enter+0x17/0x80
[<
ffffffff8150168d>] do_IRQ+0x4d/0xc0
[<
ffffffff814f7c6a>] common_interrupt+0x6a/0x6a
<EOI> [<
ffffffff81073524>] ? finish_task_switch+0x54/0xe0
[<
ffffffff814f56c6>] __schedule+0x3b6/0x7e0
[<
ffffffff810763a6>] __cond_resched+0x26/0x30
[<
ffffffff814f5eda>] _cond_resched+0x3a/0x50
[<
ffffffff814f4f82>] down_write+0x12/0x30
[<
ffffffffa0591619>] hfi1_release_user_pages+0x69/0x90 [hfi1]
[<
ffffffffa059173a>] sdma_rb_remove+0x9a/0xc0 [hfi1]
[<
ffffffffa056c00d>] __mmu_rb_remove.isra.5+0x5d/0x70 [hfi1]
[<
ffffffffa056c536>] hfi1_mmu_rb_remove+0x56/0x70 [hfi1]
[<
ffffffffa059427b>] hfi1_user_sdma_process_request+0x74b/0x1160 [hfi1]
[<
ffffffffa055c763>] hfi1_aio_write+0xc3/0x100 [hfi1]
[<
ffffffff8116a14c>] do_sync_readv_writev+0x4c/0x80
[<
ffffffff8116b58b>] do_readv_writev+0xbb/0x230
[<
ffffffff811a9da1>] ? fsnotify+0x241/0x320
[<
ffffffff81073524>] ? finish_task_switch+0x54/0xe0
[<
ffffffff8116b795>] vfs_writev+0x35/0x60
[<
ffffffff8116b8c9>] SyS_writev+0x49/0xc0
[<
ffffffff810cd876>] ? __audit_syscall_exit+0x1f6/0x2a0
[<
ffffffff814ff992>] system_call_fastpath+0x16/0x1b
As evident from the backtrace above, the process was being put to sleep
while holding the lock.
Limiting the scope of the lock only to the RB tree operation fixes the
above error allowing for proper locking and the process being put to
sleep when needed.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Mitko Haralanov [Tue, 12 Apr 2016 17:45:57 +0000 (10:45 -0700)]
IB/hfi1: Prevent NULL pointer deferences in caching code
There is a potential kernel crash when the MMU notifier calls the
invalidation routines in the hfi1 pinned page caching code for sdma.
The invalidation routine could call the remove callback
for the node, which in turn ends up dereferencing the
current task_struct to get a pointer to the mm_struct.
However, the mm_struct pointer could be NULL resulting in
the following backtrace:
BUG: unable to handle kernel NULL pointer dereference at
00000000000000a8
IP: [<
ffffffffa041f75a>] sdma_rb_remove+0xaa/0x100 [hfi1]
15
task:
ffff88085e66e080 ti:
ffff88085c244000 task.ti:
ffff88085c244000
RIP: 0010:[<
ffffffffa041f75a>] [<
ffffffffa041f75a>] sdma_rb_remove+0xaa/0x100 [hfi1]
RSP: 0000:
ffff88085c245878 EFLAGS:
00010002
RAX:
0000000000000000 RBX:
ffff88105b9bbd40 RCX:
ffffea003931a830
RDX:
0000000000000004 RSI:
ffff88105754a9c0 RDI:
ffff88105754a9c0
RBP:
ffff88085c245890 R08:
ffff88105b9bbd70 R09:
00000000fffffffb
R10:
ffff88105b9bbd58 R11:
0000000000000013 R12:
ffff88105754a9c0
R13:
0000000000000001 R14:
0000000000000001 R15:
ffff88105b9bbd40
FS:
0000000000000000(0000) GS:
ffff88107ef40000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
00000000000000a8 CR3:
0000000001a0b000 CR4:
00000000001407e0
Stack:
ffff88105b9bbd40 ffff88080ec481a8 ffff88080ec481b8 ffff88085c2458c0
ffffffffa03fa00e ffff88080ec48190 ffff88080ed9cd00 0000000001024000
0000000000000000 ffff88085c245920 ffffffffa03fa0e7 0000000000000282
Call Trace:
[<
ffffffffa03fa00e>] __mmu_rb_remove.isra.5+0x5e/0x70 [hfi1]
[<
ffffffffa03fa0e7>] mmu_notifier_mem_invalidate+0xc7/0xf0 [hfi1]
[<
ffffffffa03fa143>] mmu_notifier_page+0x13/0x20 [hfi1]
[<
ffffffff81156dd0>] __mmu_notifier_invalidate_page+0x50/0x70
[<
ffffffff81140bbb>] try_to_unmap_one+0x20b/0x470
[<
ffffffff81141ee7>] try_to_unmap_anon+0xa7/0x120
[<
ffffffff81141fad>] try_to_unmap+0x4d/0x60
[<
ffffffff8111fd7b>] shrink_page_list+0x2eb/0x9d0
[<
ffffffff81120ab3>] shrink_inactive_list+0x243/0x490
[<
ffffffff81121491>] shrink_lruvec+0x4c1/0x640
[<
ffffffff81121641>] shrink_zone+0x31/0x100
[<
ffffffff81121b0f>] kswapd_shrink_zone.constprop.62+0xef/0x1c0
[<
ffffffff811229e3>] kswapd+0x403/0x7e0
[<
ffffffff811225e0>] ? shrink_all_memory+0xf0/0xf0
[<
ffffffff81068ac0>] kthread+0xc0/0xd0
[<
ffffffff81068a00>] ? insert_kthread_work+0x40/0x40
[<
ffffffff814ff8ec>] ret_from_fork+0x7c/0xb0
[<
ffffffff81068a00>] ? insert_kthread_work+0x40/0x40
To correct this, the mm_struct passed to us by the MMU notifier is
used (which is what should have been done to begin with). This avoids
the broken derefences and ensures that the correct mm_struct is used.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Sagi Grimberg [Sun, 3 Apr 2016 12:03:12 +0000 (15:03 +0300)]
MAINTAINERS: Update iser/isert maintainer contact info
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Acked-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Sagi Grimberg [Thu, 31 Mar 2016 16:03:25 +0000 (19:03 +0300)]
IB/mlx5: Expose correct max_sge_rd limit
mlx5 devices (Connect-IB, ConnectX-4, ConnectX-4-LX) has a limitation
where rdma read work queue entries cannot exceed 512 bytes.
A rdma_read wqe needs to fit in 512 bytes:
- wqe control segment (16 bytes)
- rdma segment (16 bytes)
- scatter elements (16 bytes each)
So max_sge_rd should be: (512 - 16 - 16) / 16 = 30.
Cc: linux-stable@vger.kernel.org
Reported-by: Christoph Hellwig <hch@lst.de>
Tested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagig@grimberg.me>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Hariprasad S [Tue, 5 Apr 2016 04:53:48 +0000 (10:23 +0530)]
RDMA/iw_cxgb4: Fix bar2 virt addr calculation for T4 chips
For T4, kernel mode qps don't use the user doorbell. User mode qps during
flow control db ringing are forced into kernel, where user doorbell is
treated as kernel doorbell and proper bar2 offset in bar2 virtual space is
calculated, which incase of T4 is a bogus address, causing a kernel panic
due to illegal write during doorbell ringing.
In case of T4, kernel mode qp bar2 virtual address should be 0. Added T4
check during bar2 virtual address calculation to return 0. Fixed Bar2
range checks based on bar2 physical address.
The below oops will be fixed
<1>BUG: unable to handle kernel paging request at
000000000002aa08
<1>IP: [<
ffffffffa011d800>] c4iw_uld_control+0x4e0/0x880 [iw_cxgb4]
<4>PGD
1416a8067 PUD
15bf35067 PMD 0
<4>Oops: 0002 [#1] SMP
<4>last sysfs file:
/sys/devices/pci0000:00/0000:00:03.0/0000:02:00.4/infiniband/cxgb4_0/node_guid
<4>CPU 5
<4>Modules linked in: rdma_ucm rdma_cm ib_cm ib_sa ib_mad ib_uverbs
ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE
iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack
ipt_REJECT xt_CHECKSUM iptable_mangle iptable_filter ip_tables bridge autofs4
target_core_iblock target_core_file target_core_pscsi target_core_mod
configfs bnx2fc cnic uio fcoe libfcoe libfc scsi_transport_fc scsi_tgt 8021q
garp stp llc cpufreq_ondemand acpi_cpufreq freq_table mperf vhost_net macvtap
macvlan tun kvm uinput microcode iTCO_wdt iTCO_vendor_support sg joydev
serio_raw i2c_i801 i2c_core lpc_ich mfd_core e1000e ptp pps_core ioatdma dca
i7core_edac edac_core shpchp ext3 jbd mbcache sd_mod crc_t10dif pata_acpi
ata_generic ata_piix iw_cxgb4 iw_cm ib_core ib_addr cxgb4 ipv6 dm_mirror
dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan]
<4>
Supermicro X8ST3/X8ST3
<4>RIP: 0010:[<
ffffffffa011d800>] [<
ffffffffa011d800>]
c4iw_uld_control+0x4e0/0x880 [iw_cxgb4]
<4>RSP: 0000:
ffff880155a03db0 EFLAGS:
00010006
<4>RAX:
000000000000001d RBX:
ffff88013ae5fc00 RCX:
ffff880155adb180
<4>RDX:
000000000002aa00 RSI:
0000000000000001 RDI:
ffff88013ae5fdf8
<4>RBP:
ffff880155a03e10 R08:
0000000000000000 R09:
0000000000000001
<4>R10:
0000000000000000 R11:
0000000000000000 R12:
0000000000000000
<4>R13:
000000000000001d R14:
ffff880156414ab0 R15:
ffffe8ffffc05b88
<4>FS:
0000000000000000(0000) GS:
ffff8800282a0000(0000) knlGS:
0000000000000000
<4>CS: 0010 DS: 0018 ES: 0018 CR0:
000000008005003b
<4>CR2:
000000000002aa08 CR3:
000000015bd0e000 CR4:
00000000000007e0
<4>DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
<4>DR3:
0000000000000000 DR6:
00000000ffff0ff0 DR7:
0000000000000400
<4>Process cxgb4 (pid: 394, threadinfo
ffff880155a00000, task
ffff880156414ab0)
<4>Stack:
<4>
ffff880156415068 ffff880155adb180 ffff880155a03df0 ffffffffa00a344b
<4><d>
00000000000003e8 ffff880155920000 0000000000000004 ffff880155920000
<4><d>
ffff88015592d438 ffffffffa00a3860 ffff880155a03fd8 ffffe8ffffc05b88
<4>Call Trace:
<4> [<
ffffffffa00a344b>] ? enable_txq_db+0x2b/0x80 [cxgb4]
<4> [<
ffffffffa00a3860>] ? process_db_full+0x0/0xa0 [cxgb4]
<4> [<
ffffffffa00a38a6>] process_db_full+0x46/0xa0 [cxgb4]
<4> [<
ffffffff8109fda0>] worker_thread+0x170/0x2a0
<4> [<
ffffffff810a6aa0>] ? autoremove_wake_function+0x0/0x40
<4> [<
ffffffff8109fc30>] ? worker_thread+0x0/0x2a0
<4> [<
ffffffff810a660e>] kthread+0x9e/0xc0
<4> [<
ffffffff8100c28a>] child_rip+0xa/0x20
<4> [<
ffffffff810a6570>] ? kthread+0x0/0xc0
<4> [<
ffffffff8100c280>] ? child_rip+0x0/0x20
<4>Code: e9 ba 00 00 00 66 0f 1f 44 00 00 44 8b 05 29 07 02 00 45 85 c0 0f 85
71 02 00 00 8b 83 70 01 00 00 45 0f b7 ed c1 e0 0f 44 09 e8 <89> 42 08 0f ae f8
66 c7 83 82 01 00 00 00 00 44 0f b7 ab dc 01
<1>RIP [<
ffffffffa011d800>] c4iw_uld_control+0x4e0/0x880 [iw_cxgb4]
<4> RSP <
ffff880155a03db0>
<4>CR2:
000000000002aa08`
Based on original work by Bharat Potnuri <bharat@chelsio.com>
Fixes:
74217d4c6a4fb0d8 ("iw_cxgb4: support for bar2 qid densities exceeding the page size")
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Reviewed-by: Leon Romanovsky <leon@leon.nu>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Steve Wise [Tue, 12 Apr 2016 13:55:03 +0000 (06:55 -0700)]
iw_cxgb4: handle draining an idle qp
In c4iw_drain_sq/rq(), if the particular queue is already empty
then don't block.
Fixes:
ce4af14d94aa ('iw_cxgb4: add queue drain functions')
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Steve Wise [Tue, 12 Apr 2016 13:55:01 +0000 (06:55 -0700)]
iw_cxgb3: initialize ibdev.iwcm->ifname for port mapping
The IWCM uses ibdev.iwcm->ifname for registration with the iwarp
port map daemon. But iw_cxgb3 did not initialize this field which
causes intermittent registration failures based on the contents of the
uninitialized memory.
Fixes:
c1340e8aa628 ("iw_cxgb3: support for iWARP port mapping")
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Steve Wise [Tue, 12 Apr 2016 13:54:54 +0000 (06:54 -0700)]
iw_cxgb4: initialize ibdev.iwcm->ifname for port mapping
The IWCM uses ibdev.iwcm->ifname for registration with the iwarp
port map daemon. But iw_cxgb4 did not initialize this field which
causes intermittent registration failures based on the contents of the
uninitialized memory.
Fixes:
170003c894d9 ("iw_cxgb4: remove port mapper related code")
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Sagi Grimberg [Tue, 26 Apr 2016 14:55:38 +0000 (17:55 +0300)]
IB/core: Don't drain non-existent rq queue-pair
The drain_rq function expects a normal receive qp to drain. A qp can
only have either a normal rq or an srq. If there is an srq, there
is no rq to drain. Until the API supports draining SRQs, simply
skip draining the rq when the qp has an srq attached.
Fixes:
765d67748bcf ("IB: new common API for draining queues")
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Doug Ledford [Sat, 23 Apr 2016 00:14:58 +0000 (20:14 -0400)]
IB/core: Fix oops in ib_cache_gid_set_default_gid
When we fail to find the default gid index, we can't continue
processing in this routine or else we will pass a negative
index to later routines resulting in invalid memory access
attempts and a kernel oops.
Fixes:
03db3a2d81e6 (IB/core: Add RoCE GID table management)
Signed-off-by: Doug Ledford <dledford@redhat.com>
Arnd Bergmann [Wed, 23 Mar 2016 10:34:36 +0000 (11:34 +0100)]
i40iw: avoid potential uninitialized variable use
gcc finds that the i40iw_make_cm_node() function in the recently added
i40iw driver uses an uninitilized variable as an index into an array
if CONFIG_IPV6 is disabled and the driver uses IPv6 mode:
drivers/infiniband/hw/i40iw/i40iw_cm.c: In function 'i40iw_make_cm_node':
drivers/infiniband/hw/i40iw/i40iw_cm.c:2206:52: error: 'arpindex' may be used uninitialized in this function [-Werror=maybe-uninitialized]
ether_addr_copy(cm_node->rem_mac, iwdev->arp_table[arpindex].mac_addr);
As far as I can tell, this code path can not be used because the ipv4
variable is always set with CONFIG_IPV6 is disabled, but it's better
to be sure and prevent the undefined behavior, as well as shut up
that warning in a proper way.
This adds an 'else' clause for the case we get the warning about,
causing the function to return an error in a controlled way.
To avoid adding extra mess with combined io()/#ifdef clauses,
I'm also converting the existing #ifdef into a more readable
if(IS_ENABLED()) check.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes:
f27b4746f378 ("i40iw: add connection management code")
Acked-by: Mustafa Ismail <Mustafa.ismail@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Arnd Bergmann [Wed, 23 Mar 2016 10:37:45 +0000 (11:37 +0100)]
IB/mlx5: fix VFs callback function prototypes
The previous patch that added a couple of callback functions put
the declarations inside of an #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING,
which causes the build to fail if that option is disabled:
drivers/infiniband/hw/mlx5/main.c: In function 'mlx5_ib_add':
drivers/infiniband/hw/mlx5/main.c:2358:31: error: 'mlx5_ib_get_vf_config' undeclared (first use in this function)
This moves the four declarations below the #ifdef section so they
are always available.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes:
eff901d30e6c ("IB/mlx5: Implement callbacks for manipulating VFs")
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Linus Torvalds [Sun, 3 Apr 2016 14:09:40 +0000 (09:09 -0500)]
Linux 4.6-rc2
Linus Torvalds [Sun, 3 Apr 2016 12:22:12 +0000 (07:22 -0500)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Misc kernel side fixes:
- fix event leak
- fix AMD PMU driver bug
- fix core event handling bug
- fix build bug on certain randconfigs
Plus misc tooling fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/amd/ibs: Fix pmu::stop() nesting
perf/core: Don't leak event in the syscall error path
perf/core: Fix time tracking bug with multiplexing
perf jit: genelf makes assumptions about endian
perf hists: Fix determination of a callchain node's childlessness
perf tools: Add missing initialization of perf_sample.cpumode in synthesized samples
perf tools: Fix build break on powerpc
perf/x86: Move events_sysfs_show() outside CPU_SUP_INTEL
perf bench: Fix detached tarball building due to missing 'perf bench memcpy' headers
perf tests: Fix tarpkg build test error output redirection
Linus Torvalds [Sun, 3 Apr 2016 12:06:53 +0000 (07:06 -0500)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull core kernel fixes from Ingo Molnar:
"This contains the nohz/atomic cleanup/fix for the fetch_or() ugliness
you noted during the original nohz pull request, plus there's also
misc fixes:
- fix liblockdep build bug
- fix uapi header build bug
- print more lockdep hash collision info to help debug recent reports
of hash collisions
- update MAINTAINERS email address"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Update my email address
locking/lockdep: Print chain_key collision information
uapi/linux/stddef.h: Provide __always_inline to userspace headers
tools/lib/lockdep: Fix unsupported 'basename -s' in run_tests.sh
locking/atomic, sched: Unexport fetch_or()
timers/nohz: Convert tick dependency mask to atomic_t
locking/atomic: Introduce atomic_fetch_or()
Linus Torvalds [Sun, 3 Apr 2016 12:03:49 +0000 (07:03 -0500)]
v4l2-mc: avoid warning about unused variable
Commit
840f5b0572ea ("media: au0828 disable tuner to demod link in
au0828_media_device_register()") removed all uses of the 'dtv_demod',
but left the variable itself around.
Remove it.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 3 Apr 2016 11:32:28 +0000 (06:32 -0500)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"This lot contains:
- Some fixups for the fallout of the topology consolidation which
unearthed AMD/Intel inconsistencies
- Documentation for the x86 topology management
- Support for AMD advanced power management bits
- Two simple cleanups removing duplicated code"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu: Add advanced power management bits
x86/thread_info: Merge two !__ASSEMBLY__ sections
x86/cpufreq: Remove duplicated TDP MSR macro definitions
x86/Documentation: Start documenting x86 topology
x86/cpu: Get rid of compute_unit_id
perf/x86/amd: Cleanup Fam10h NB event constraints
x86/topology: Fix AMD core count
Linus Torvalds [Sat, 2 Apr 2016 23:57:49 +0000 (18:57 -0500)]
Merge tag 'rproc-v4.6-rc1' of git://github.com/andersson/remoteproc
Pull remoteproc fix from Bjorn Andersson:
"Fix incorrect error check in the ST remoteproc driver and advertise
the newly created linux-remoteproc mailing list"
* tag 'rproc-v4.6-rc1' of git://github.com/andersson/remoteproc:
MAINTAINERS: Add mailing list for remote processor subsystems
remoteproc: st: fix check of syscon_regmap_lookup_by_phandle() return value
Linus Torvalds [Sat, 2 Apr 2016 23:48:37 +0000 (18:48 -0500)]
Merge git://git./linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
"This includes fixes from HCH for -rc1 configfs default_groups
conversion changes that ended up breaking some iscsi-target
default_groups, along with Sagi's ib_drain_qp() conversion for
iser-target to use the common caller now available to RDMA kernel
consumers in v4.6+ code"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
target: add a new add_wwn_groups fabrics method
target: initialize the nacl base CIT begfore init_nodeacl
target: remove ->fabric_cleanup_nodeacl
iser-target: Use ib_drain_qp
Linus Torvalds [Sat, 2 Apr 2016 23:35:05 +0000 (18:35 -0500)]
Convert straggling drivers to new six-argument get_user_pages()
Commit
d4edcf0d5695 ("mm/gup: Switch all callers of get_user_pages() to
not pass tsk/mm") switched get_user_pages() callers to the simpler model
where they no longer pass in the thread and mm pointer. But since then
we've merged changes to a few drivers that re-introduce use of the old
interface. Let's fix them up.
They continued to work fine (thanks to the truly disgusting macros
introduced in commit
cde70140fed8: "mm/gup: Overload get_user_pages()
functions"), but cause unnecessary build noise.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 2 Apr 2016 21:46:56 +0000 (16:46 -0500)]
Merge tag 'configfs-for-linus-2' of git://git.infradead.org/users/hch/configfs
Pull configfs fix from Christoph Hellwig:
"A trivial fix to the recently introduced binary attribute helper
macros"
* tag 'configfs-for-linus-2' of git://git.infradead.org/users/hch/configfs:
configfs: fix CONFIGFS_BIN_ATTR_[RW]O definitions
Linus Torvalds [Sat, 2 Apr 2016 01:03:33 +0000 (20:03 -0500)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Missing device reference in IPSEC input path results in crashes
during device unregistration. From Subash Abhinov Kasiviswanathan.
2) Per-queue ISR register writes not being done properly in macb
driver, from Cyrille Pitchen.
3) Stats accounting bugs in bcmgenet, from Patri Gynther.
4) Lightweight tunnel's TTL and TOS were swapped in netlink dumps, from
Quentin Armitage.
5) SXGBE driver has off-by-one in probe error paths, from Rasmus
Villemoes.
6) Fix race in save/swap/delete options in netfilter ipset, from
Vishwanath Pai.
7) Ageing time of bridge not set properly when not operating over a
switchdev device. Fix from Haishuang Yan.
8) Fix GRO regression wrt nested FOU/GUE based tunnels, from Alexander
Duyck.
9) IPV6 UDP code bumps wrong stats, from Eric Dumazet.
10) FEC driver should only access registers that actually exist on the
given chipset, fix from Fabio Estevam.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (73 commits)
net: mvneta: fix changing MTU when using per-cpu processing
stmmac: fix MDIO settings
Revert "stmmac: Fix 'eth0: No PHY found' regression"
stmmac: fix TX normal DESC
net: mvneta: use cache_line_size() to get cacheline size
net: mvpp2: use cache_line_size() to get cacheline size
net: mvpp2: fix maybe-uninitialized warning
tun, bpf: fix suspicious RCU usage in tun_{attach, detach}_filter
net: usb: cdc_ncm: adding Telit LE910 V2 mobile broadband card
rtnl: fix msg size calculation in if_nlmsg_size()
fec: Do not access unexisting register in Coldfire
net: mvneta: replace MVNETA_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES
net: mvpp2: replace MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES
net: dsa: mv88e6xxx: Clear the PDOWN bit on setup
net: dsa: mv88e6xxx: Introduce _mv88e6xxx_phy_page_{read, write}
bpf: make padding in bpf_tunnel_key explicit
ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates
bnxt_en: Fix ethtool -a reporting.
bnxt_en: Fix typo in bnxt_hwrm_set_pause_common().
bnxt_en: Implement proper firmware message padding.
...
Linus Torvalds [Sat, 2 Apr 2016 00:57:13 +0000 (19:57 -0500)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A handful of const updates for reset ops and a couple fixes to the
newly introduced IPQ4019 clock driver"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: ipq4019: add some fixed clocks for ddrppl and fepll
clk: qcom: ipq4019: switch remaining defines to enums
clk: qcom: Make reset_control_ops const
clk: tegra: Make reset_control_ops const
clk: sunxi: Make reset_control_ops const
clk: atlas7: Make reset_control_ops const
clk: rockchip: Make reset_control_ops const
clk: mmp: Make reset_control_ops const
clk: mediatek: Make reset_control_ops const
Linus Torvalds [Sat, 2 Apr 2016 00:52:10 +0000 (19:52 -0500)]
Merge tag 'pm+acpi-4.6-rc2' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fix from Rafael J. Wysocki:
"Just one fix for a nasty boot failure on some systems based on Intel
Skylake that shipped with broken firmware where enabling
hardware-coordinated P-states management (HWP) causes a faulty
interrupt handler in SMM to be invoked and crash the system (Srinivas
Pandruvada)"
* tag 'pm+acpi-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / processor: Request native thermal interrupt handling via _OSC
Linus Torvalds [Sat, 2 Apr 2016 00:31:19 +0000 (19:31 -0500)]
Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
"11 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
.mailmap: add Christophe Ricard
Make CONFIG_FHANDLE default y
mm/page_isolation.c: fix the function comments
oom, oom_reaper: do not enqueue task if it is on the oom_reaper_list head
mm/page_isolation: fix tracepoint to mirror check function behavior
mm/rmap: batched invalidations should use existing api
x86/mm: TLB_REMOTE_SEND_IPI should count pages
mm: fix invalid node in alloc_migrate_target()
include/linux/huge_mm.h: return NULL instead of false for pmd_trans_huge_lock()
mm, kasan: fix compilation for CONFIG_SLAB
MAINTAINERS: orangefs mailing list is subscribers-only
Rafael J. Wysocki [Fri, 1 Apr 2016 23:17:36 +0000 (01:17 +0200)]
Merge branch 'acpi-processor'
* acpi-processor:
ACPI / processor: Request native thermal interrupt handling via _OSC
Linus Torvalds [Fri, 1 Apr 2016 23:08:34 +0000 (18:08 -0500)]
Merge branch 'for-linus-4.6' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"This has a few fixes Dave Sterba had queued up. These are all pretty
small, but since they were tested I decided against waiting for more"
* 'for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: transaction_kthread() is not freezable
btrfs: cleaner_kthread() doesn't need explicit freeze
btrfs: do not write corrupted metadata blocks to disk
btrfs: csum_tree_block: return proper errno value
Linus Torvalds [Fri, 1 Apr 2016 22:17:32 +0000 (17:17 -0500)]
Merge tag 'for-linus' of git://github.com/martinbrandenburg/linux
Pull OrangeFS fixes from Martin Brandenburg:
"Two bugfixes for OrangeFS.
One is a reference counting bug and the other is a typo in client
minimum version"
* tag 'for-linus' of git://github.com/martinbrandenburg/linux:
orangefs: minimum userspace version is 2.9.3
orangefs: don't put readdir slot twice
Linus Torvalds [Fri, 1 Apr 2016 22:15:51 +0000 (17:15 -0500)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
- fix oops when patching in alternative sequences on big-endian CPUs
- reconcile asm/perf_event.h after merge window fallout with KVM ARM
- defconfig updates
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: defconfig: updates for 4.6
arm64: perf: Move PMU register related defines to asm/perf_event.h
arm64: opcodes.h: Add arm big-endian config options before including arm header
Linus Torvalds [Fri, 1 Apr 2016 22:13:23 +0000 (17:13 -0500)]
Merge tag 'sound-4.6-rc2' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes:
- a fix in ALSA timer core to avoid possible BUG() trigger
- a fix in ALSA timer core 32bit compat layer
- a few HD-audio quirks for ASUS and HP machines
- AMD HD-audio HDMI controller quirks
- fixes of USB-audio double-free at some error paths
- a fix for memory leak in DICE driver at hotunplug"
* tag 'sound-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: timer: Use mod_timer() for rearming the system timer
ALSA: hda - fix front mic problem for a HP desktop
ALSA: usb-audio: Fix double-free in error paths after snd_usb_add_audio_stream() call
ALSA: hda: add AMD Polaris-10/11 AZ PCI IDs with proper driver caps
ALSA: dice: fix memory leak when unplugging
ALSA: hda - Apply fix for white noise on Asus N550JV, too
ALSA: hda - Fix white noise on Asus N750JV headphone
ALSA: hda - Asus N750JV external subwoofer fixup
ALSA: timer: fix gparams ioctl compatibility for different architectures
Christophe Ricard [Fri, 1 Apr 2016 21:31:42 +0000 (14:31 -0700)]
.mailmap: add Christophe Ricard
Different computers had different settings in the mail client. Some
contributions appear as Christophe Ricard, others as Christophe RICARD.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andi Kleen [Fri, 1 Apr 2016 21:31:40 +0000 (14:31 -0700)]
Make CONFIG_FHANDLE default y
Newer Fedora and OpenSUSE didn't boot with my standard configuration.
It took me some time to figure out why, in fact I had to write a script
to try different config options systematically.
The problem is that something (systemd) in dracut depends on
CONFIG_FHANDLE, which adds open by file handle syscalls.
While it is set in defconfigs it is very easy to miss when updating
older configs because it is not default y.
Make it default y and also depend on EXPERT, as dracut use is likely
widespread.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Richard Weinberger <richard.weinberger@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Neil Zhang [Fri, 1 Apr 2016 21:31:37 +0000 (14:31 -0700)]
mm/page_isolation.c: fix the function comments
Commit
fea85cff11de ("mm/page_isolation.c: return last tested pfn rather
than failure indicator") changed the meaning of the return value. Let's
change the function comments as well.
Signed-off-by: Neil Zhang <neilzhang1123@hotmail.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michal Hocko [Fri, 1 Apr 2016 21:31:34 +0000 (14:31 -0700)]
oom, oom_reaper: do not enqueue task if it is on the oom_reaper_list head
Commit
bb29902a7515 ("oom, oom_reaper: protect oom_reaper_list using
simpler way") has simplified the check for tasks already enqueued for
the oom reaper by checking tsk->oom_reaper_list != NULL. This check is
not sufficient because the tsk might be the head of the queue without
any other tasks queued and then we would simply lockup looping on the
same task. Fix the condition by checking for the head as well.
Fixes:
bb29902a7515 ("oom, oom_reaper: protect oom_reaper_list using simpler way")
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Lucas Stach [Fri, 1 Apr 2016 21:31:32 +0000 (14:31 -0700)]
mm/page_isolation: fix tracepoint to mirror check function behavior
Page isolation has not failed if the fin pfn extends beyond the end pfn
and test_pages_isolated checks this correctly. Fix the tracepoint to
report the same result as the actual check function.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nadav Amit [Fri, 1 Apr 2016 21:31:26 +0000 (14:31 -0700)]
mm/rmap: batched invalidations should use existing api
The recently introduced batched invalidations mechanism uses its own
mechanism for shootdown. However, it does wrong accounting of
interrupts (e.g., inc_irq_stat is called for local invalidations),
trace-points (e.g., TLB_REMOTE_SHOOTDOWN for local invalidations) and
may break some platforms as it bypasses the invalidation mechanisms of
Xen and SGI UV.
This patch reuses the existing TLB flushing mechnaisms instead. We use
NULL as mm to indicate a global invalidation is required.
Fixes
72b252aed506b8 ("mm: send one IPI per CPU to TLB flush all entries after unmapping pages")
Signed-off-by: Nadav Amit <namit@vmware.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nadav Amit [Fri, 1 Apr 2016 21:31:23 +0000 (14:31 -0700)]
x86/mm: TLB_REMOTE_SEND_IPI should count pages
TLB_REMOTE_SEND_IPI was recently introduced, but it counts bytes instead
of pages. In addition, it does not report correctly the case in which
flush_tlb_page flushes a page. Fix it to be consistent with other TLB
counters.
Fixes:
5b74283ab251b9d ("x86, mm: trace when an IPI is about to be sent")
Signed-off-by: Nadav Amit <namit@vmware.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Xishi Qiu [Fri, 1 Apr 2016 21:31:20 +0000 (14:31 -0700)]
mm: fix invalid node in alloc_migrate_target()
It is incorrect to use next_node to find a target node, it will return
MAX_NUMNODES or invalid node. This will lead to crash in buddy system
allocation.
Fixes:
c8721bbbdd36 ("mm: memory-hotplug: enable memory hotplug to handle hugepage")
Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: "Laura Abbott" <lauraa@codeaurora.org>
Cc: Hui Zhu <zhuhui@xiaomi.com>
Cc: Wang Xiaoqiang <wangxq10@lzu.edu.cn>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Chen Gang [Fri, 1 Apr 2016 21:31:17 +0000 (14:31 -0700)]
include/linux/huge_mm.h: return NULL instead of false for pmd_trans_huge_lock()
The return value of pmd_trans_huge_lock() is a pointer, not a boolean
value, so use NULL instead of false as the return value.
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexander Potapenko [Fri, 1 Apr 2016 21:31:15 +0000 (14:31 -0700)]
mm, kasan: fix compilation for CONFIG_SLAB
Add the missing argument to set_track().
Fixes:
cd11016e5f52 ("mm, kasan: stackdepot implementation. Enable stackdepot for SLAB")
Signed-off-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <adech.fo@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Konstantin Serebryany <kcc@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joe Perches [Fri, 1 Apr 2016 21:31:12 +0000 (14:31 -0700)]
MAINTAINERS: orangefs mailing list is subscribers-only
So update MAINTAINERS to say so.
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Mike Marshall <hubcap@omnibond.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Marcin Wojtas [Fri, 1 Apr 2016 13:21:18 +0000 (15:21 +0200)]
net: mvneta: fix changing MTU when using per-cpu processing
After enabling per-cpu processing it appeared that under heavy load
changing MTU can result in blocking all port's interrupts and
transmitting data is not possible after the change.
This commit fixes above issue by disabling percpu interrupts for the
time, when TXQs and RXQs are reconfigured.
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 1 Apr 2016 18:38:59 +0000 (14:38 -0400)]
Merge branch 'stmmac-fixes'
Giuseppe Cavallaro says:
====================
stmmac MDIO and normal descr fixes
This patch series is to fix the problems below and recently debugged
in this mailing list:
o to fix a problem for the HW where the normal descriptor
o to fix the mdio registration according to the different
platform configurations
I am resending all the patches again: built on top of net.git repo.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Giuseppe CAVALLARO [Fri, 1 Apr 2016 07:07:16 +0000 (09:07 +0200)]
stmmac: fix MDIO settings
Initially the phy_bus_name was added to manipulate the
driver name but it was recently just used to manage the
fixed-link and then to take some decision at run-time.
So the patch uses the is_pseudo_fixed_link and removes
the phy_bus_name variable not necessary anymore.
The driver can manage the mdio registration by using phy-handle,
dwmac-mdio and own parameter e.g. snps,phy-addr.
This patch takes care about all these possible configurations
and fixes the mdio registration in case of there is a real
transceiver or a switch (that needs to be managed by using
fixed-link).
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Tested-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Cc: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Cc: Dinh Nguyen <dinh.linux@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Phil Reid <preid@electromag.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Giuseppe CAVALLARO [Fri, 1 Apr 2016 07:07:15 +0000 (09:07 +0200)]
Revert "stmmac: Fix 'eth0: No PHY found' regression"
This reverts commit
88f8b1bb41c6208f81b6a480244533ded7b59493.
due to problems on GeekBox and Banana Pi M1 board when
connected to a real transceiver instead of a switch via
fixed-link.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Cc: Andreas Färber <afaerber@suse.de>
Cc: Frank Schäfer <fschaefer.oss@googlemail.com>
Cc: Dinh Nguyen <dinh.linux@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Giuseppe CAVALLARO [Fri, 1 Apr 2016 07:07:14 +0000 (09:07 +0200)]
stmmac: fix TX normal DESC
This patch fixs a regression raised when test on chips that use
the normal descriptor layout. In fact, no len bits were set for
the TDES1 and no OWN bit inside the TDES0.
Signed-off-by: Giuseppe CAVALLARO <peppe.cavallaro@st.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Cc: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jisheng Zhang [Fri, 1 Apr 2016 09:12:49 +0000 (17:12 +0800)]
net: mvneta: use cache_line_size() to get cacheline size
L1_CACHE_BYTES may not be the real cacheline size, use cache_line_size
to determine the cacheline size in runtime.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Suggested-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jisheng Zhang [Fri, 1 Apr 2016 09:11:05 +0000 (17:11 +0800)]
net: mvpp2: use cache_line_size() to get cacheline size
L1_CACHE_BYTES may not be the real cacheline size, use cache_line_size
to determine the cacheline size in runtime.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Suggested-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jisheng Zhang [Thu, 31 Mar 2016 09:01:23 +0000 (17:01 +0800)]
net: mvpp2: fix maybe-uninitialized warning
This is to fix the following maybe-uninitialized warning:
drivers/net/ethernet/marvell/mvpp2.c:6007:18: warning: 'err' may be
used uninitialized in this function [-Wmaybe-uninitialized]
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Thu, 31 Mar 2016 00:13:18 +0000 (02:13 +0200)]
tun, bpf: fix suspicious RCU usage in tun_{attach, detach}_filter
Sasha Levin reported a suspicious rcu_dereference_protected() warning
found while fuzzing with trinity that is similar to this one:
[ 52.765684] net/core/filter.c:2262 suspicious rcu_dereference_protected() usage!
[ 52.765688] other info that might help us debug this:
[ 52.765695] rcu_scheduler_active = 1, debug_locks = 1
[ 52.765701] 1 lock held by a.out/1525:
[ 52.765704] #0: (rtnl_mutex){+.+.+.}, at: [<
ffffffff816a64b7>] rtnl_lock+0x17/0x20
[ 52.765721] stack backtrace:
[ 52.765728] CPU: 1 PID: 1525 Comm: a.out Not tainted 4.5.0+ #264
[...]
[ 52.765768] Call Trace:
[ 52.765775] [<
ffffffff813e488d>] dump_stack+0x85/0xc8
[ 52.765784] [<
ffffffff810f2fa5>] lockdep_rcu_suspicious+0xd5/0x110
[ 52.765792] [<
ffffffff816afdc2>] sk_detach_filter+0x82/0x90
[ 52.765801] [<
ffffffffa0883425>] tun_detach_filter+0x35/0x90 [tun]
[ 52.765810] [<
ffffffffa0884ed4>] __tun_chr_ioctl+0x354/0x1130 [tun]
[ 52.765818] [<
ffffffff8136fed0>] ? selinux_file_ioctl+0x130/0x210
[ 52.765827] [<
ffffffffa0885ce3>] tun_chr_ioctl+0x13/0x20 [tun]
[ 52.765834] [<
ffffffff81260ea6>] do_vfs_ioctl+0x96/0x690
[ 52.765843] [<
ffffffff81364af3>] ? security_file_ioctl+0x43/0x60
[ 52.765850] [<
ffffffff81261519>] SyS_ioctl+0x79/0x90
[ 52.765858] [<
ffffffff81003ba2>] do_syscall_64+0x62/0x140
[ 52.765866] [<
ffffffff817d563f>] entry_SYSCALL64_slow_path+0x25/0x25
Same can be triggered with PROVE_RCU (+ PROVE_RCU_REPEATEDLY) enabled
from tun_attach_filter() when user space calls ioctl(tun_fd, TUN{ATTACH,
DETACH}FILTER, ...) for adding/removing a BPF filter on tap devices.
Since the fix in
f91ff5b9ff52 ("net: sk_{detach|attach}_filter() rcu
fixes") sk_attach_filter()/sk_detach_filter() now dereferences the
filter with rcu_dereference_protected(), checking whether socket lock
is held in control path.
Since its introduction in
994051625981 ("tun: socket filter support"),
tap filters are managed under RTNL lock from __tun_chr_ioctl(). Thus the
sock_owned_by_user(sk) doesn't apply in this specific case and therefore
triggers the false positive.
Extend the BPF API with __sk_attach_filter()/__sk_detach_filter() pair
that is used by tap filters and pass in lockdep_rtnl_is_held() for the
rcu_dereference_protected() checks instead.
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 1 Apr 2016 12:21:18 +0000 (07:21 -0500)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Nothing too crazy in here: a bunch of AMD fixes/quirks, two msm fixes,
some rockchip fixes, and a udl warning fix, along with one locking fix
for displayport that seems to fix some dodgy monitors"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/udl: Use unlocked gem unreferencing
drm/dp: move hw_mutex up the call stack
drm/amdgpu: Don't move pinned BOs
drm/radeon: Don't move pinned BOs
drm/radeon: add a dpm quirk for all R7 370 parts
drm/radeon: add another R7 370 quirk
drm/rockchip: dw_hdmi: Don't call platform_set_drvdata()
drm/rockchip: vop: Fix vop crtc cleanup
drm/rockchip: dw_hdmi: Call drm_encoder_cleanup() in error path
drm/rockchip: vop: Disable planes when disabling CRTC
drm/rockchip: vop: Don't reject empty modesets
drm/rockchip: cancel pending vblanks on close
drm/rockchip: vop: fix crtc size in plane check
drm/radeon: add a dpm quirk for sapphire Dual-X R7 370 2G D5
drm/amd: Beef up ACP Kconfig menu text
drm/msm: fix typo in the !COMMON_CLK case
drm/msm: fix bug after preclose removal
Linus Torvalds [Fri, 1 Apr 2016 12:18:27 +0000 (07:18 -0500)]
Merge tag 'powerpc-4.6-2' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fixup preempt underflow with huge pages from Sebastian Siewior
- Fix altivec SPR not being saved from Oliver O'Halloran
- Correct used_vsr comment from Simon Guo
* tag 'powerpc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Correct used_vsr comment
powerpc/process: Fix altivec SPR not being saved
powerpc/mm: Fixup preempt underflow with huge pages
Linus Torvalds [Fri, 1 Apr 2016 12:15:54 +0000 (07:15 -0500)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
- A proper fix for the locking issue in the dasd driver
- Wire up the new preadv2 nad pwritev2 system calls
- Add the mark_rodata_ro function and set DEBUG_RODATA=y
- A few more bug fixes.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: wire up preadv2/pwritev2 syscalls
s390/pci: PCI function group 0 is valid for clp_query_pci_fn
s390/crypto: provide correct file mode at device register.
s390/mm: handle PTE-mapped tail pages in fast gup
s390: add DEBUG_RODATA support
s390: disable postinit-readonly for now
s390/dasd: reorder lcu and device lock
s390/cpum_sf: Fix cpu hotplug notifier transitions
s390/cpum_cf: Fix missing cpu hotplug notifier transition
Takashi Iwai [Fri, 1 Apr 2016 10:28:16 +0000 (12:28 +0200)]
ALSA: timer: Use mod_timer() for rearming the system timer
ALSA system timer backend stops the timer via del_timer() without sync
and leaves del_timer_sync() at the close instead. This is because of
the restriction by the design of ALSA timer: namely, the stop callback
may be called from the timer handler, and calling the sync shall lead
to a hangup. However, this also triggers a kernel BUG() when the
timer is rearmed immediately after stopping without sync:
kernel BUG at kernel/time/timer.c:966!
Call Trace:
<IRQ>
[<
ffffffff8239c94e>] snd_timer_s_start+0x13e/0x1a0
[<
ffffffff8239e1f4>] snd_timer_interrupt+0x504/0xec0
[<
ffffffff8122fca0>] ? debug_check_no_locks_freed+0x290/0x290
[<
ffffffff8239ec64>] snd_timer_s_function+0xb4/0x120
[<
ffffffff81296b72>] call_timer_fn+0x162/0x520
[<
ffffffff81296add>] ? call_timer_fn+0xcd/0x520
[<
ffffffff8239ebb0>] ? snd_timer_interrupt+0xec0/0xec0
....
It's the place where add_timer() checks the pending timer. It's clear
that this may happen after the immediate restart without sync in our
cases.
So, the workaround here is just to use mod_timer() instead of
add_timer(). This looks like a band-aid fix, but it's a right move,
as snd_timer_interrupt() takes care of the continuous rearm of timer.
Reported-by: Jiri Slaby <jslaby@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Heiko Carstens [Mon, 21 Mar 2016 12:48:43 +0000 (13:48 +0100)]
s390: wire up preadv2/pwritev2 syscalls
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Pierre Morel [Wed, 16 Mar 2016 12:56:35 +0000 (13:56 +0100)]
s390/pci: PCI function group 0 is valid for clp_query_pci_fn
The PCI function group 0 is a valid function group,
it is wrong to reject it.
Let's accept PCI function group 0.
Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Masami Hiramatsu [Thu, 31 Mar 2016 13:33:23 +0000 (22:33 +0900)]
MAINTAINERS: Update my email address
Since I moved to Linaro, this old address doesn't work anymore.
I'll use my kernel.org account for upstreaming.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: acme@redhat.com
Cc: rostedt@goodmis.org
Link: http://lkml.kernel.org/r/1459431203-7438-1-git-send-email-mhiramat@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Hui Wang [Fri, 1 Apr 2016 03:00:15 +0000 (11:00 +0800)]
ALSA: hda - fix front mic problem for a HP desktop
The front mic jack (pink color) can't detect any plug or unplug. After
applying this fix, both detecting function and recording function
work well.
BugLink: https://bugs.launchpad.net/bugs/1564712
Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Daniel Vetter [Wed, 30 Mar 2016 09:40:43 +0000 (11:40 +0200)]
drm/udl: Use unlocked gem unreferencing
For drm_gem_object_unreference callers are required to hold
dev->struct_mutex, which these paths don't. Enforcing this requirement
has become a bit more strict with
commit
ef4c6270bf2867e2f8032e9614d1a8cfc6c71663
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu Oct 15 09:36:25 2015 +0200
drm/gem: Check locking in drm_gem_object_unreference
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Rob Clark [Thu, 25 Feb 2016 21:15:05 +0000 (16:15 -0500)]
drm/dp: move hw_mutex up the call stack
1) don't let other threads trying to bang on aux channel interrupt the
defer timeout/logic
2) don't let other threads interrupt the i2c over aux logic
Technically, according to people who actually have the DP spec, this
should not be required. In practice, it makes some troublesome Dell
monitor (and perhaps others) work, so probably a case of "It's compliant
if it works with windows" on the hw vendor's part..
v2: rebased to come before DPCD/AUX logging patch for easier backport
to stable branches.
Reported-by: Dave Wysochanski <dwysocha@redhat.com>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=
1274157
Cc: stable@vger.kernel.org
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Fri, 1 Apr 2016 03:14:24 +0000 (13:14 +1000)]
Merge branch 'drm-rockchip-next-fixes-2016-03-28' of https://github.com/markyzq/kernel-drm-rockchip into drm-fixes
bunch of rockchip fixes.
* 'drm-rockchip-next-fixes-2016-03-28' of https://github.com/markyzq/kernel-drm-rockchip:
drm/rockchip: dw_hdmi: Don't call platform_set_drvdata()
drm/rockchip: vop: Fix vop crtc cleanup
drm/rockchip: dw_hdmi: Call drm_encoder_cleanup() in error path
drm/rockchip: vop: Disable planes when disabling CRTC
drm/rockchip: vop: Don't reject empty modesets
drm/rockchip: cancel pending vblanks on close
drm/rockchip: vop: fix crtc size in plane check
Dave Airlie [Fri, 1 Apr 2016 03:14:10 +0000 (13:14 +1000)]
Merge branch 'msm-fixes-4.6-rc1' of git://people.freedesktop.org/~robclark/linux into drm-fixes
two minor msm fixes.
* 'msm-fixes-4.6-rc1' of git://people.freedesktop.org/~robclark/linux:
drm/msm: fix typo in the !COMMON_CLK case
drm/msm: fix bug after preclose removal
Dave Airlie [Fri, 1 Apr 2016 03:13:34 +0000 (13:13 +1000)]
Merge branch 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Just a few fixes for 4.6 this week:
- Add some SI DPM quirks
- Improve the ACP Kconfig text
- Additional BO pinning checks
* 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux:
drm/amdgpu: Don't move pinned BOs
drm/radeon: Don't move pinned BOs
drm/radeon: add a dpm quirk for all R7 370 parts
drm/radeon: add another R7 370 quirk
drm/radeon: add a dpm quirk for sapphire Dual-X R7 370 2G D5
drm/amd: Beef up ACP Kconfig menu text
Daniele Palmas [Thu, 31 Mar 2016 13:16:47 +0000 (15:16 +0200)]
net: usb: cdc_ncm: adding Telit LE910 V2 mobile broadband card
Telit LE910 V2 is a mobile broadband card with no ARP capabilities:
the patch makes this device to use wwan_noarp_info struct
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Reviewed-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Thu, 31 Mar 2016 16:10:31 +0000 (18:10 +0200)]
rtnl: fix msg size calculation in if_nlmsg_size()
Size of the attribute IFLA_PHYS_PORT_NAME was missing.
Fixes:
db24a9044ee1 ("net: add support for phys_port_name")
CC: David Ahern <dsahern@gmail.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabio Estevam [Thu, 31 Mar 2016 15:05:17 +0000 (12:05 -0300)]
fec: Do not access unexisting register in Coldfire
Commit
55cd48c821de ("net: fec: stop the "rcv is not +last, " error
messages") introduces a write to a register that does not exist in
Coldfire.
Move the FEC_FTRL register access inside the FEC_QUIRK_HAS_RACC 'if' block,
so that we guarantee it will not be used on Coldfire CPUs.
Reported-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jisheng Zhang [Wed, 30 Mar 2016 11:55:21 +0000 (19:55 +0800)]
net: mvneta: replace MVNETA_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES
The mvneta is also used in some Marvell berlin family SoCs which may
have 64bytes cacheline size. Replace the MVNETA_CPU_D_CACHE_LINE_SIZE
usage with L1_CACHE_BYTES.
And since dma_alloc_coherent() is always cacheline size aligned, so
remove the align checks.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jisheng Zhang [Wed, 30 Mar 2016 11:53:41 +0000 (19:53 +0800)]
net: mvpp2: replace MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES
The mvpp2 ip maybe used in SoCs which may have have 64bytes cacheline
size. Replace the MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES.
And since dma_alloc_coherent() is always cacheline size aligned, so
remove the align checks.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick Uiterwijk [Wed, 30 Mar 2016 01:39:41 +0000 (01:39 +0000)]
net: dsa: mv88e6xxx: Clear the PDOWN bit on setup
Some of the vendor-specific bootloaders set up this part
of the initialization for us, so this was never added.
However, since upstream bootloaders don't initialize the
chip specifically, they leave the fiber MII's PDOWN flag
set, which means that the CPU port doesn't connect.
This patch checks whether this flag has been clear prior
by something else, and if not make us clear it.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick Uiterwijk [Wed, 30 Mar 2016 01:39:40 +0000 (01:39 +0000)]
net: dsa: mv88e6xxx: Introduce _mv88e6xxx_phy_page_{read, write}
Add versions of the phy_page_read and _write functions to
be used in a context where the SMI mutex is held.
Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladis Dronov [Thu, 31 Mar 2016 16:05:43 +0000 (12:05 -0400)]
ALSA: usb-audio: Fix double-free in error paths after snd_usb_add_audio_stream() call
create_fixed_stream_quirk(), snd_usb_parse_audio_interface() and
create_uaxx_quirk() functions allocate the audioformat object by themselves
and free it upon error before returning. However, once the object is linked
to a stream, it's freed again in snd_usb_audio_pcm_free(), thus it'll be
double-freed, eventually resulting in a memory corruption.
This patch fixes these failures in the error paths by unlinking the audioformat
object before freeing it.
Based on a patch by Takashi Iwai <tiwai@suse.de>
[Note for stable backports:
this patch requires the commit
902eb7fd1e4a ('ALSA: usb-audio: Minor
code cleanup in create_fixed_stream_quirk()')]
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=
1283358
Reported-by: Ralf Spenneberg <ralf@spenneberg.net>
Cc: <stable@vger.kernel.org> # see the note above
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Martin Brandenburg [Wed, 30 Mar 2016 20:18:43 +0000 (16:18 -0400)]
orangefs: minimum userspace version is 2.9.3
Version 2.9.4 isn't even released yet.
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Martin Brandenburg [Mon, 28 Mar 2016 21:18:27 +0000 (17:18 -0400)]
orangefs: don't put readdir slot twice
This was quite an oversight. After a readdir, the module could not be
unloaded, the number of slots is wrong, and memory near the slot bitmap
is possibly corrupt. Oops.
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
David S. Miller [Thu, 31 Mar 2016 15:40:16 +0000 (11:40 -0400)]
Merge branch '10GbE' of git://git./linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2016-03-29
This series contains fixes to ixgbe and ixgbevf.
Tushar fixes an issue which was introduced with an earlier commit, where
hardware register RAR0 default MAC address does not get set properly.
Alex fixes two issues, first being the VXLAN port number should be stored
in network order instead of in host order. The second fix corrects the ATR
code to handle IPv6 extension headers. The issue was ATR code was assuming
that it would be able to use tcp_hdr for every TCP frame that came through,
but that is not the case, which resulted in bad filters being setup.
Mark fixes a use of usleep_range() to udelay() in the case where a lock
is being held.
Stefan fixes the offline self tests where ndo_stop() should be used instead
of ndo_close(), which causes IFF_UP to be cleared and interface routes get
removed.
Emil fixes the error case where we need to return an error when a MAC
address change is rejected by the PF. This helps prevent the user from
modifying the MAC address when the operation is not permitted.
Sridhar provides three fixes for ixgbe, all dealing with traffic class
offload handling.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alfredo Alvarez Fernandez [Wed, 30 Mar 2016 17:03:36 +0000 (19:03 +0200)]
locking/lockdep: Print chain_key collision information
A sequence of pairs [class_idx -> corresponding chain_key iteration]
is printed for both the current held_lock chain and the cached chain.
That exposes the two different class_idx sequences that led to that
particular hash value.
This helps with debugging hash chain collision reports.
Signed-off-by: Alfredo Alvarez Fernandez <alfredoalvarezfernandez@gmail.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-fsdevel@vger.kernel.org
Cc: sedat.dilek@gmail.com
Cc: tytso@mit.edu
Link: http://lkml.kernel.org/r/1459357416-19190-1-git-send-email-alfredoalvarezernandez@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Maruthi Srinivas Bayyavarapu [Thu, 31 Mar 2016 12:40:03 +0000 (18:10 +0530)]
ALSA: hda: add AMD Polaris-10/11 AZ PCI IDs with proper driver caps
This commit fixes garbled audio on Polaris-10/11 variants
Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linus Torvalds [Thu, 31 Mar 2016 12:55:14 +0000 (07:55 -0500)]
Merge branch 'parisc-4.6-2' of git://git./linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
"Fix seccomp filter support and SIGSYS signals on compat kernel.
Both patches are tagged for v4.5 stable kernel"
* 'parisc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix and enable seccomp filter support
parisc: Fix SIGSYS signals in compat case
Linus Torvalds [Thu, 31 Mar 2016 12:19:39 +0000 (07:19 -0500)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs
Pull vfs fix from Al Viro.
Automount handling was broken by commit
e3c13928086f ("namei: massage
lookup_slow() to be usable by lookup_one_len_unlocked()") moving the
test for negative dentry too early.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix the braino in "namei: massage lookup_slow() to be usable by lookup_one_len_unlocked()"
Linus Torvalds [Thu, 31 Mar 2016 12:13:56 +0000 (07:13 -0500)]
Merge tag 'gpio-v4.6-2' of git://git./linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here are two GPIO fixes for the v4.6 series, both in drivers:
- Prevent NULL dereference in the Xgene driver
- Fix an uninitialized spinlock in the menz127 driver"
* tag 'gpio-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: xgene: Prevent NULL pointer dereference
gpio: menz127: Drop lock field from struct men_z127_gpio
Linus Torvalds [Thu, 31 Mar 2016 11:56:50 +0000 (06:56 -0500)]
Merge branch 'libnvdimm-for-next' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull nvdimm mcsafe_memcpy use from Dan Williams:
"Now that mcsafe_memcpy() has landed, and the return value was been
clarified in commit
cbf8b5a2b649 ("x86/mm, x86/mce: Fix return
type/value for memcpy_mcsafe()"), let's hook up its primary usage in
the pmem driver.
The compilation problems from the initial posting have been fixed,
this has appeared in a -next release with no reported issues, and it
picked up an ack from Ingo. There is no pressing need to merge this
in 4.6- rc2. However, if we wait until 4.7 the new memcpy_mcsafe()
capability will ship without a user in 4.6-final"
* 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
x86, pmem: use memcpy_mcsafe() for memcpy_from_pmem()
Helge Deller [Wed, 30 Mar 2016 12:14:31 +0000 (14:14 +0200)]
parisc: Fix and enable seccomp filter support
The seccomp filter support requires careful handling of task registers. This
includes reloading of the return value (%r28) and proper syscall exit if
secure_computing() returned -1.
Additionally we need to sign-extend the syscall number from signed 32bit to
signed 64bit in do_syscall_trace_enter() since the ptrace interface only allows
storing 32bit values in compat mode.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v4.5
Helge Deller [Wed, 30 Mar 2016 12:11:50 +0000 (14:11 +0200)]
parisc: Fix SIGSYS signals in compat case
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v4.5
Peter Zijlstra [Mon, 21 Mar 2016 10:47:52 +0000 (11:47 +0100)]
perf/x86/amd/ibs: Fix pmu::stop() nesting
Patch
5a50f5291701 ("perf/x86/ibs: Fix race with IBS_STARTING state")
closed a big hole while opening another, smaller hole.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.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:
5a50f5291701 ("perf/x86/ibs: Fix race with IBS_STARTING state")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Alexander Shishkin [Mon, 21 Mar 2016 08:02:42 +0000 (10:02 +0200)]
perf/core: Don't leak event in the syscall error path
In the error path, event_file not being NULL is used to determine
whether the event itself still needs to be free'd, so fix it up to
avoid leaking.
Reported-by: Leon Yu <chianglungyu@gmail.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.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:
130056275ade ("perf: Do not double free")
Link: http://lkml.kernel.org/r/87twk06yxp.fsf@ashishki-desk.ger.corp.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Peter Zijlstra [Tue, 29 Mar 2016 07:26:44 +0000 (09:26 +0200)]
perf/core: Fix time tracking bug with multiplexing
Stephane reported that commit:
3cbaa5906967 ("perf: Fix ctx time tracking by introducing EVENT_TIME")
introduced a regression wrt. time tracking, as easily observed by:
> This patch introduce a bug in the time tracking of events when
> multiplexing is used.
>
> The issue is easily reproducible with the following perf run:
>
> $ perf stat -a -C 0 -e branches,branches,branches,branches,branches,branches -I 1000
> 1.
000730239 652,394 branches (66.41%)
> 1.
000730239 597,809 branches (66.41%)
> 1.
000730239 593,870 branches (66.63%)
> 1.
000730239 651,440 branches (67.03%)
> 1.
000730239 656,725 branches (66.96%)
> 1.
000730239 <not counted> branches
>
> One branches event is shown as not having run. Yet, with
> multiplexing, all events should run especially with a 1s (-I 1000)
> interval. The delta for time_running comes out to 0. Yet, the event
> has run because the kernel is actually multiplexing the events. The
> problem is that the time tracking is the kernel and especially in
> ctx_sched_out() is wrong now.
>
> The problem is that in case that the kernel enters ctx_sched_out() with the
> following state:
> ctx->is_active=0x7 event_type=0x1
> Call Trace:
> [<
ffffffff813ddd41>] dump_stack+0x63/0x82
> [<
ffffffff81182bdc>] ctx_sched_out+0x2bc/0x2d0
> [<
ffffffff81183896>] perf_mux_hrtimer_handler+0xf6/0x2c0
> [<
ffffffff811837a0>] ? __perf_install_in_context+0x130/0x130
> [<
ffffffff810f5818>] __hrtimer_run_queues+0xf8/0x2f0
> [<
ffffffff810f6097>] hrtimer_interrupt+0xb7/0x1d0
> [<
ffffffff810509a8>] local_apic_timer_interrupt+0x38/0x60
> [<
ffffffff8175ca9d>] smp_apic_timer_interrupt+0x3d/0x50
> [<
ffffffff8175ac7c>] apic_timer_interrupt+0x8c/0xa0
>
> In that case, the test:
> if (is_active & EVENT_TIME)
>
> will be false and the time will not be updated. Time must always be updated on
> sched out.
Fix this by always updating time if EVENT_TIME was set, as opposed to
only updating time when EVENT_TIME changed.
Reported-by: Stephane Eranian <eranian@google.com>
Tested-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: kan.liang@intel.com
Cc: namhyung@kernel.org
Fixes:
3cbaa5906967 ("perf: Fix ctx time tracking by introducing EVENT_TIME")
Link: http://lkml.kernel.org/r/20160329072644.GB3408@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Ingo Molnar [Thu, 31 Mar 2016 06:27:35 +0000 (08:27 +0200)]
Merge tag 'perf-urgent-for-mingo-
20160330' of git://git./linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
- Fix determination of a callchain node's childlessness in
the top/report TUI, which was preventing navigating some
callchains, --stdio unnaffected (Andres Freund)
- Fix jitdump's genelf assumption that PowerPC is big endian
only (Anton Blanchard)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Al Viro [Thu, 31 Mar 2016 04:23:05 +0000 (00:23 -0400)]
fix the braino in "namei: massage lookup_slow() to be usable by lookup_one_len_unlocked()"
We should try to trigger automount *before* bailing out on negative dentry.
Reported-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Reported-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Reported-by: Arend van Spriel <arend@broadcom.com>
Tested-by: Arend van Spriel <arend@broadcom.com>
Tested-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Christoph Hellwig [Tue, 29 Mar 2016 11:03:35 +0000 (13:03 +0200)]
target: add a new add_wwn_groups fabrics method
We need to have the WWN fully initialized before addig default groups to it,
so add a new method to add these groups after the WWN has been initialized.
Also remove the default groups in the core while we're at it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Christoph Hellwig [Tue, 29 Mar 2016 11:03:34 +0000 (13:03 +0200)]
target: initialize the nacl base CIT begfore init_nodeacl
The iSCSI targets wants to add a default group, for which we need to
have the list of default groups initialized previously.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Christoph Hellwig [Tue, 29 Mar 2016 11:03:33 +0000 (13:03 +0200)]
target: remove ->fabric_cleanup_nodeacl
Instead we can clean up the list of default ACLs in core code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Sagi Grimberg [Wed, 24 Feb 2016 17:24:09 +0000 (19:24 +0200)]
iser-target: Use ib_drain_qp
Now the rdma core offers a QP draining service in v4.6-rc1,
use it instead of our own.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Linus Torvalds [Thu, 31 Mar 2016 01:40:42 +0000 (20:40 -0500)]
Merge tag 'nios2-v4.6-rc2' of git://git./linux/kernel/git/lftan/nios2
Pull nios2 fix from Ley Foon Tan:
"Replace fdt_translate_address with of_flat_dt_translate_address"
Fixes a build failure.
* tag 'nios2-v4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
nios2: Replace fdt_translate_address with of_flat_dt_translate_address
Guenter Roeck [Tue, 29 Mar 2016 09:02:13 +0000 (17:02 +0800)]
nios2: Replace fdt_translate_address with of_flat_dt_translate_address
nios2 builds fail with the following build error.
arch/nios2/kernel/prom.c: In function 'early_init_dt_scan_serial':
arch/nios2/kernel/prom.c:100:2: error:
implicit declaration of function 'fdt_translate_address'
Commit
c90fe9c0394b ("of: earlycon: Move address translation to
of_setup_earlycon()") replaced fdt_translate_address() with
of_flat_dt_translate_address() but missed updating the nios2 code.
Fixes:
c90fe9c0394b ("of: earlycon: Move address translation to of_setup_earlycon()")
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Ley Foon Tan <lftan@altera.com>
Daniel Borkmann [Tue, 29 Mar 2016 22:02:00 +0000 (00:02 +0200)]
bpf: make padding in bpf_tunnel_key explicit
Make the 2 byte padding in struct bpf_tunnel_key between tunnel_ttl
and tunnel_label members explicit. No issue has been observed, and
gcc/llvm does padding for the old struct already, where tunnel_label
was not yet present, so the current code works, but since it's part
of uapi, make sure we don't introduce holes in structs.
Therefore, add tunnel_ext that we can use generically in future
(f.e. to flag OAM messages for backends, etc). Also add the offset
to the compat tests to be sure should some compilers not padd the
tail of the old version of bpf_tunnel_key.
Fixes:
4018ab1875e0 ("bpf: support flow label for bpf_skb_{set, get}_tunnel_key")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 29 Mar 2016 15:43:41 +0000 (08:43 -0700)]
ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates
IPv6 counters updates use a different macro than IPv4.
Fixes:
36cbb2452cbaf ("udp: Increment UDP_MIB_IGNOREDMULTI for arriving unmatched multicasts")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Rick Jones <rick.jones2@hp.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Mon, 28 Mar 2016 23:46:07 +0000 (19:46 -0400)]
bnxt_en: Fix ethtool -a reporting.
To report flow control tx/rx settings accurately regardless of autoneg
setting, we should use link_info->req_flow_ctrl. Before this patch,
the reported settings were only correct when autoneg was on.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>