* [PATCH] bfa: squelch lockdep complaint with a spin_lock_init
@ 2012-07-11 16:42 Kyle McMartin
2012-07-11 18:53 ` Krishna Gudipati
0 siblings, 1 reply; 2+ messages in thread
From: Kyle McMartin @ 2012-07-11 16:42 UTC (permalink / raw)
To: linux-scsi; +Cc: huangj, kgudipat
Spotted this while looking at another issue...
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
Pid: 298, comm: udevd Not tainted 3.3.0 #1
Call Trace:
[<ffffffff810cee63>] __lock_acquire+0x1363/0x1bb0
[<ffffffff816593d2>] ? __slab_alloc+0x4a0/0x4fd
[<ffffffff81020063>] ? native_sched_clock+0x13/0x80
[<ffffffff810200d9>] ? sched_clock+0x9/0x10
[<ffffffff810cfd81>] lock_acquire+0xa1/0x1e0
[<ffffffffa0321b83>] ? bfa_fcs_lport_aen_post+0x43/0x160 [bfa]
[<ffffffff816630e5>] _raw_spin_lock_irqsave+0x65/0xb0
[<ffffffffa0321b83>] ? bfa_fcs_lport_aen_post+0x43/0x160 [bfa]
[<ffffffffa0321b83>] bfa_fcs_lport_aen_post+0x43/0x160 [bfa]
[<ffffffffa032fa57>] bfa_fcs_lport_init+0x97/0x120 [bfa]
[<ffffffffa031d4ff>] bfa_fcs_fabric_sm_uninit+0x1cf/0x250 [bfa]
[<ffffffffa031c1da>] bfa_fcs_fabric_modinit+0x2a/0xb0 [bfa]
[<ffffffffa031bef2>] ? bfa_fcs_fabric_attach+0xf2/0x170 [bfa]
[<ffffffffa031e75a>] bfa_fcs_init+0x2a/0x40 [bfa]
[<ffffffffa02facf7>] bfad_drv_init+0x107/0x1f0 [bfa]
[<ffffffffa02fb057>] bfad_pci_probe+0x277/0x450 [bfa]
[<ffffffff81354d4c>] local_pci_probe+0x5c/0xd0
[<ffffffff81354ed1>] pci_device_probe+0x111/0x120
[<ffffffff8141c0e6>] driver_probe_device+0x96/0x2f0
[<ffffffff8141c3eb>] __driver_attach+0xab/0xb0
[<ffffffff8141c340>] ? driver_probe_device+0x2f0/0x2f0
[<ffffffff8141a2e5>] bus_for_each_dev+0x55/0x90
[<ffffffffa037b000>] ? 0xffffffffa037afff
[<ffffffff8141bbce>] driver_attach+0x1e/0x20
[<ffffffff8141b8d8>] bus_add_driver+0x1b8/0x2b0
[<ffffffffa037b000>] ? 0xffffffffa037afff
[<ffffffff8141cbc7>] driver_register+0x77/0x160
[<ffffffffa037b000>] ? 0xffffffffa037afff
[<ffffffff81353b23>] __pci_register_driver+0x73/0xf0
[<ffffffffa037b000>] ? 0xffffffffa037afff
[<ffffffffa037b083>] bfad_init+0x83/0x1000 [bfa]
[<ffffffff8100212a>] do_one_initcall+0x12a/0x180
[<ffffffff810df0d0>] sys_init_module+0xc0/0x220
[<ffffffff8166bbe9>] system_call_fastpath+0x16/0x1b
Signed-off-by: Kyle McMartin <kmcmarti@redhat.com>
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1383,6 +1383,8 @@ bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
bfa_sm_set_state(bfad, bfad_sm_uninit);
spin_lock_init(&bfad->bfad_lock);
+ spin_lock_init(&bfad->bfad_aen_spinlock);
+
pci_set_drvdata(pdev, bfad);
bfad->ref_count = 0;
^ permalink raw reply [flat|nested] 2+ messages in thread
* RE: [PATCH] bfa: squelch lockdep complaint with a spin_lock_init
2012-07-11 16:42 [PATCH] bfa: squelch lockdep complaint with a spin_lock_init Kyle McMartin
@ 2012-07-11 18:53 ` Krishna Gudipati
0 siblings, 0 replies; 2+ messages in thread
From: Krishna Gudipati @ 2012-07-11 18:53 UTC (permalink / raw)
To: 'Kyle McMartin', 'linux-scsi@vger.kernel.org'
Cc: 'huangj@brocade.com'
-----Original Message-----
From: Kyle McMartin [mailto:kmcmarti@redhat.com]
Sent: Wednesday, July 11, 2012 9:43 AM
To: linux-scsi@vger.kernel.org
Cc: huangj@brocade.com; Krishna Gudipati
Subject: [PATCH] bfa: squelch lockdep complaint with a spin_lock_init
Spotted this while looking at another issue...
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
Pid: 298, comm: udevd Not tainted 3.3.0 #1
Call Trace:
[<ffffffff810cee63>] __lock_acquire+0x1363/0x1bb0
[<ffffffff816593d2>] ? __slab_alloc+0x4a0/0x4fd
[<ffffffff81020063>] ? native_sched_clock+0x13/0x80
[<ffffffff810200d9>] ? sched_clock+0x9/0x10
[<ffffffff810cfd81>] lock_acquire+0xa1/0x1e0
[<ffffffffa0321b83>] ? bfa_fcs_lport_aen_post+0x43/0x160 [bfa]
[<ffffffff816630e5>] _raw_spin_lock_irqsave+0x65/0xb0
[<ffffffffa0321b83>] ? bfa_fcs_lport_aen_post+0x43/0x160 [bfa]
[<ffffffffa0321b83>] bfa_fcs_lport_aen_post+0x43/0x160 [bfa]
[<ffffffffa032fa57>] bfa_fcs_lport_init+0x97/0x120 [bfa]
[<ffffffffa031d4ff>] bfa_fcs_fabric_sm_uninit+0x1cf/0x250 [bfa]
[<ffffffffa031c1da>] bfa_fcs_fabric_modinit+0x2a/0xb0 [bfa]
[<ffffffffa031bef2>] ? bfa_fcs_fabric_attach+0xf2/0x170 [bfa]
[<ffffffffa031e75a>] bfa_fcs_init+0x2a/0x40 [bfa]
[<ffffffffa02facf7>] bfad_drv_init+0x107/0x1f0 [bfa]
[<ffffffffa02fb057>] bfad_pci_probe+0x277/0x450 [bfa]
[<ffffffff81354d4c>] local_pci_probe+0x5c/0xd0
[<ffffffff81354ed1>] pci_device_probe+0x111/0x120
[<ffffffff8141c0e6>] driver_probe_device+0x96/0x2f0
[<ffffffff8141c3eb>] __driver_attach+0xab/0xb0
[<ffffffff8141c340>] ? driver_probe_device+0x2f0/0x2f0
[<ffffffff8141a2e5>] bus_for_each_dev+0x55/0x90
[<ffffffffa037b000>] ? 0xffffffffa037afff
[<ffffffff8141bbce>] driver_attach+0x1e/0x20
[<ffffffff8141b8d8>] bus_add_driver+0x1b8/0x2b0
[<ffffffffa037b000>] ? 0xffffffffa037afff
[<ffffffff8141cbc7>] driver_register+0x77/0x160
[<ffffffffa037b000>] ? 0xffffffffa037afff
[<ffffffff81353b23>] __pci_register_driver+0x73/0xf0
[<ffffffffa037b000>] ? 0xffffffffa037afff
[<ffffffffa037b083>] bfad_init+0x83/0x1000 [bfa]
[<ffffffff8100212a>] do_one_initcall+0x12a/0x180
[<ffffffff810df0d0>] sys_init_module+0xc0/0x220
[<ffffffff8166bbe9>] system_call_fastpath+0x16/0x1b
Signed-off-by: Kyle McMartin <kmcmarti@redhat.com>
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1383,6 +1383,8 @@ bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
bfa_sm_set_state(bfad, bfad_sm_uninit);
spin_lock_init(&bfad->bfad_lock);
+ spin_lock_init(&bfad->bfad_aen_spinlock);
+
pci_set_drvdata(pdev, bfad);
bfad->ref_count = 0;
-----
Looks good, thanks for the patch Kyle.
Acked-by: Krishna Gudipati <kgudipat@brocade.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2012-07-11 19:17 UTC | newest]
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2012-07-11 16:42 [PATCH] bfa: squelch lockdep complaint with a spin_lock_init Kyle McMartin
2012-07-11 18:53 ` Krishna Gudipati
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