From: akpm@linux-foundation.org
To: James.Bottomley@HansenPartnership.com
Cc: linux-scsi@vger.kernel.org, akpm@linux-foundation.org,
eparis@parisplace.org, Eric.Moore@lsil.com, tglx@linutronix.de
Subject: [patch for 2.6.29? 2/2] scsi: mpt: suppress debugobjects warning
Date: Wed, 04 Mar 2009 12:12:18 -0800 [thread overview]
Message-ID: <200903042012.n24KCIKH030001@imap1.linux-foundation.org> (raw)
From: "Eric Paris" <eparis@parisplace.org>
ODEBUG: object is on stack, but not annotated
------------[ cut here ]------------
WARNING: at lib/debugobjects.c:253 __debug_object_init+0x1f3/0x276()
Hardware name: VMware Virtual Platform
Modules linked in: mptspi(+) mptscsih mptbase scsi_transport_spi ext3 jbd mbcache
Pid: 540, comm: insmod Not tainted 2.6.28-mm1 #2
Call Trace:
[<c042c51c>] warn_slowpath+0x74/0x8a
[<c0469600>] ? start_critical_timing+0x96/0xb7
[<c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c
[<c0446fad>] ? trace_hardirqs_off_caller+0x18/0xaf
[<c044704f>] ? trace_hardirqs_off+0xb/0xd
[<c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c
[<c042cb84>] ? release_console_sem+0x1a5/0x1ad
[<c05013e6>] __debug_object_init+0x1f3/0x276
[<c0501494>] debug_object_init+0x13/0x17
[<c0433c56>] init_timer+0x10/0x1a
[<e08e5b54>] mpt_config+0x1c1/0x2b7 [mptbase]
[<e08e3b82>] ? kmalloc+0x8/0xa [mptbase]
[<e08e3b82>] ? kmalloc+0x8/0xa [mptbase]
[<e08e6fa2>] mpt_do_ioc_recovery+0x950/0x1212 [mptbase]
[<c04496c2>] ? __lock_acquire+0xa69/0xacc
[<c060c8f1>] ? _spin_unlock_irqrestore+0x36/0x3c
[<c060c3af>] ? _spin_unlock_irq+0x22/0x26
[<c04f2d8b>] ? string+0x2b/0x76
[<c04f310e>] ? vsnprintf+0x338/0x7b3
[<c04496c2>] ? __lock_acquire+0xa69/0xacc
[<c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c
[<c04496c2>] ? __lock_acquire+0xa69/0xacc
[<c044897d>] ? debug_check_no_locks_freed+0xeb/0x105
[<c060c8f1>] ? _spin_unlock_irqrestore+0x36/0x3c
[<c04488bc>] ? debug_check_no_locks_freed+0x2a/0x105
[<c0446b8c>] ? lock_release_holdtime+0x43/0x48
[<c043f742>] ? up_read+0x16/0x29
[<c05076f8>] ? pci_get_slot+0x66/0x72
[<e08e89ca>] mpt_attach+0x881/0x9b1 [mptbase]
[<e091c8e5>] mptspi_probe+0x11/0x354 [mptspi]
Noticing that every caller of mpt_config has its CONFIGPARMS struct
declared on the stack and thus the &pCfg->timer is always on the stack I
changed init_timer() to init_timer_on_stack() and it seems to have shut
up.....
Cc: "Moore, Eric Dean" <Eric.Moore@lsil.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
drivers/message/fusion/mptbase.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/message/fusion/mptbase.c~scsi-mpt-suppress-debugobjects-warning drivers/message/fusion/mptbase.c
--- a/drivers/message/fusion/mptbase.c~scsi-mpt-suppress-debugobjects-warning
+++ a/drivers/message/fusion/mptbase.c
@@ -5934,7 +5934,7 @@ mpt_config(MPT_ADAPTER *ioc, CONFIGPARMS
/* Initalize the timer
*/
- init_timer(&pCfg->timer);
+ init_timer_on_stack(&pCfg->timer);
pCfg->timer.data = (unsigned long) ioc;
pCfg->timer.function = mpt_timer_expired;
pCfg->wait_done = 0;
_
next reply other threads:[~2009-03-04 20:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-04 20:12 akpm [this message]
2009-04-20 21:55 ` [patch for 2.6.29? 2/2] scsi: mpt: suppress debugobjects warning Andrew Morton
2009-04-21 10:38 ` Desai, Kashyap
2009-04-21 16:58 ` Andrew Morton
2009-04-21 18:03 ` Desai, Kashyap
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