https://bugzilla.kernel.org/show_bug.cgi?id=38152
Len Brown <l...@kernel.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |CLOSED
CC| |l...@kernel.org
--- Comment #3 from Len Brown <l...@kernel.org> 2011-07-30 06:31:14 ---
shipped in v3.0:
commit 07e49a7a31153a95caa270d8ad7350a0bcd4d511
Author: Rafael J. Wysocki <r...@sisk.pl>
Date: Wed Jul 6 20:44:25 2011 +0200
ACPI: Fix lockdep false positives in acpi_power_off()
All ACPICA locks are allocated by the same function,
acpi_os_create_lock(), with the help of a local variable called
"lock". Thus, when lockdep is enabled, it uses "lock" as the
name of all those locks and regards them as instances of the same
lock, which causes it to report possible locking problems with them
when there aren't any.
To work around this problem, define acpi_os_create_lock() as a macro
and make it pass its argument to spin_lock_init(), so that lockdep
uses it as the name of the new lock. Define this macron in a
Linux-specific file, to minimize the resulting modifications of
the OS-independent ACPICA parts.
This change is based on an earlier patch from Andrea Righi and it
addresses a regression from 2.6.39 tracked as
https://bugzilla.kernel.org/show_bug.cgi?id=38152
Signed-off-by: Rafael J. Wysocki <r...@sisk.pl>
Reported-and-tested-by: Borislav Petkov <b...@alien8.de>
Tested-by: Andrea Righi <and...@betterlinux.com>
Reviewed-by: Florian Mickler <flor...@mickler.org>
Signed-off-by: Len Brown <len.br...@intel.com>
--
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.
------------------------------------------------------------------------------
Got Input? Slashdot Needs You.
Take our quick survey online. Come on, we don't ask for help often.
Plus, you'll get a chance to win $100 to spend on ThinkGeek.
http://p.sf.net/sfu/slashdot-survey
_______________________________________________
acpi-bugzilla mailing list
acpi-bugzilla@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
