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71e93d1561
linux/drivers
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Venki Pallipadi 71e93d1561 ACPI: lockdep warning on boot, 2.6.25-rc5 
This avoids the harmless WARNING by lockdep in acpi_processor_idle().

The reason for WARNING is because at the depth of idle handling code,
some of the idle handlers disable interrupts, some times, while returning from
the idle handler. After return, acpi_processor_idle and few other routines
in the file did an unconditional local_irq_enable(). With LOCKDEP, enabling
irq when it is already enabled generates the below WARNING.

> > [    0.593038] ------------[ cut here ]------------
> > [    0.593267] WARNING: at kernel/lockdep.c:2035 trace_hardirqs_on+0xa0/0x115()
> > [    0.593596] Modules linked in:
> > [    0.593756] Pid: 0, comm: swapper Not tainted 2.6.25-rc5 #8
> > [    0.594017]
> > [    0.594017] Call Trace:
> > [    0.594216]  [<ffffffff80231663>] warn_on_slowpath+0x58/0x6b
> > [    0.594495]  [<ffffffff80495966>] ? _spin_unlock_irqrestore+0x38/0x47
> > [    0.594809]  [<ffffffff80329a86>] ? acpi_os_release_lock+0x9/0xb
> > [    0.595103]  [<ffffffff80337840>] ? acpi_set_register+0x161/0x173
> > [    0.595401]  [<ffffffff8034c8d4>] ? acpi_processor_idle+0x1de/0x546
> > [    0.595706]  [<ffffffff8020a23b>] ? default_idle+0x0/0x73
> > [    0.595970]  [<ffffffff8024fc0e>] trace_hardirqs_on+0xa0/0x115
> > [    0.596049]  [<ffffffff8034c6f6>] ? acpi_processor_idle+0x0/0x546
> > [    0.596346]  [<ffffffff8034c8d4>] acpi_processor_idle+0x1de/0x546
> > [    0.596642]  [<ffffffff8020a23b>] ? default_idle+0x0/0x73
> > [    0.596912]  [<ffffffff8034c6f6>] ? acpi_processor_idle+0x0/0x546
> > [    0.597209]  [<ffffffff8020a23b>] ? default_idle+0x0/0x73
> > [    0.597472]  [<ffffffff8020a355>] cpu_idle+0xa7/0xd1
> > [    0.597717]  [<ffffffff80485fa1>] rest_init+0x55/0x57
> > [    0.597957]  [<ffffffff8062fb49>] start_kernel+0x29d/0x2a8
> > [    0.598215]  [<ffffffff8062f1da>] _sinittext+0x1da/0x1e1
> > [    0.598464]
> > [    0.598546] ---[ end trace 778e504de7e3b1e3 ]---

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-03-14 00:05:48 -04:00
..
acorn/char Fix default compose table initialization 2008-03-03 14:53:16 -08:00
acpi ACPI: lockdep warning on boot, 2.6.25-rc5 2008-03-14 00:05:48 -04:00
amba
ata [libata] Add support for the RB500 PATA CompactFlash 2008-03-10 20:54:05 -04:00
atm atm: replace remaining __FUNCTION__ occurrences 2008-03-05 18:38:07 -08:00
auxdisplay
base drivers: fix dma_get_required_mask 2008-03-10 16:33:33 -07:00
block block: floppy: fix rmmod lockup 2008-03-13 13:11:43 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-03-12 13:08:09 -07:00
cdrom make cdrom.c:check_for_audio_disc() static 2008-03-04 11:28:41 +01:00
char char: riscom, fix rc_board indexing 2008-03-13 13:11:43 -07:00
clocksource
connector CONNECTOR: make cn_already_initialized static 2008-02-26 18:42:44 -08:00
cpufreq [CPUFREQ] fix section mismatch warnings 2008-03-05 14:45:31 -05:00
cpuidle ACPI, cpuidle: Clarify C-state description in sysfs 2008-02-14 00:09:55 -05:00
crypto [HIFN]: Fix invalid config ifdefs for RNG support 2008-02-15 19:15:05 +08:00
dca DCA: convert struct class_device to struct device. 2008-02-08 15:33:33 -08:00
dio dio: ARRAY_SIZE() cleanup 2008-02-05 09:44:23 -08:00
dma iop-adma.c: replace remaining __FUNCTION__ occurrences 2008-03-13 10:57:09 -07:00
edac drivers/edac/i3000: document type promotion 2008-02-07 08:42:23 -08:00
eisa
firewire firewire: fix crash in automatic module unloading 2008-03-02 12:35:46 +01:00
firmware dmi: prevent linked list corruption 2008-02-23 17:12:15 -08:00
gpio gpio/pca953x bugfix: mark as can_sleep 2008-03-10 18:01:19 -07:00
hid HID: add USB IDs for MacBook 3rd generation 2008-02-13 17:08:04 +01:00
hwmon hwmon: normal_i2c arrays should be const 2008-02-18 21:58:15 -05:00
i2c i2c: chips subdirectory is deprecated 2008-03-12 14:15:00 +01:00
ide ide: update references to Documentation/ide/ide.txt (v2) 2008-03-07 21:53:50 +01:00
ieee1394 ieee1394: sbp2: fix rescan-scsi-bus 2008-02-19 19:57:24 +01:00
infiniband IPoIB: Allocate priv->tx_ring with vmalloc() 2008-03-12 07:51:03 -07:00
input i8042: use SGI_HAS_I8042 to select SGI i8042 handlinig 2008-03-10 18:01:20 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-03-12 13:08:09 -07:00
leds PWM LED driver 2008-02-08 09:22:38 -08:00
lguest lguest: Revert 1ce70c4fac, fix real problem. 2008-03-11 09:35:58 +11:00
macintosh [POWERPC] Fix build of modular drivers/macintosh/apm_emu.c 2008-03-13 10:09:27 +11:00
mca
md md: reduce CPU wastage on idle md array with a write-intent bitmap 2008-03-10 18:01:19 -07:00
media V4L/DVB (7219): zoran: Fix namespace conflicts with Zoran 'GPIO_MAX' enum 2008-02-18 12:18:28 -03:00
memstick memstick: add support for JMicron jmb38x MemoryStick host controller 2008-03-10 18:01:19 -07:00
message [SCSI] mpt fusion: don't oops if NumPhys==0 2008-03-05 14:57:57 -06:00
mfd sm501: add support for the SM502 programmable PLL 2008-03-04 16:35:13 -08:00
misc Merge branches 'release', 'ejd', 'sony' and 'wmi' into release 2008-03-13 01:59:52 -04:00
mmc mmc: extend ricoh_mmc to support Ricoh RL5c476 2008-02-08 09:02:47 +01:00
mtd UBI: mtd/ubi/vtbl.c: fix memory leak 2008-03-04 11:03:09 +02:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-03-12 13:08:09 -07:00
nubus nubus: kill drivers/nubus/nubus_syms.c 2008-02-05 09:44:23 -08:00
of [POWERPC] Create and hook up of_platform_device_shutdown 2008-02-06 16:29:59 +11:00
oprofile d_path: Make get_dcookie() use a struct path argument 2008-02-14 21:17:08 -08:00
parisc parisc: fix IOMMU's device boundary overflow bug on 32bits arch 2008-03-05 17:55:13 -08:00
parport parport: section fixup 2008-02-13 16:21:19 -08:00
pci Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6 2008-03-13 13:16:22 -07:00
pcmcia PCI: drivers/pcmcia/i82092.c: fix up after pci_bus_region changes 2008-02-21 15:34:35 -08:00
pnp PNP: disable PNP motherboard resources that overlap PCI BARs 2008-03-12 12:39:36 -07:00
power Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2008-02-07 09:45:58 -08:00
ps3 [POWERPC] PS3: Update sys-manager button events 2008-02-14 22:11:01 +11:00
rapidio docbook: fix rapidio source files 2008-03-03 10:47:13 -08:00
rtc rtc: add support for the S-35390A RTC chip 2008-03-04 16:35:09 -08:00
s390 [S390] zcrypt: fix ap_device_list handling 2008-03-05 12:37:19 +01:00
sbus
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2008-03-05 17:49:59 -08:00
serial of_serial: fix section mismatch warnings 2008-03-10 18:01:17 -07:00
sh maple: fix device detection 2008-02-26 14:12:09 +09:00
sn
spi spi_bitbang: short transfer status fix 2008-03-13 13:11:43 -07:00
ssb ssb: Add pcibios_enable_device() return value check 2008-03-04 18:36:35 -05:00
tc
telephony
thermal thermal: fix generic thermal I/F for hwmon 2008-03-13 01:49:01 -04:00
uio UIO: fix Greg's stupid changes 2008-02-21 15:27:07 -08:00
usb USB: fix ehci unlink regressions 2008-03-10 16:42:27 -07:00
video fbdev: add BF52x EZkit Display driver 2008-03-10 18:01:20 -07:00
virtio virtio: add missing #include <linux/delay.h> 2008-02-06 10:41:21 -08:00
w1 ds1wm: report bus reset error 2008-03-04 16:35:12 -08:00
watchdog [WATCHDOG] make watchdog/hpwdt.c:asminline_call() static 2008-03-06 21:32:21 +00:00
xen
zorro
Kconfig memstick: initial commit for Sony MemoryStick support 2008-02-09 11:08:34 -08:00
Makefile memstick: initial commit for Sony MemoryStick support 2008-02-09 11:08:34 -08:00