Vaidyanathan Srinivasan ad0a45fd9c cpuidle: Validate cpu_dev in cpuidle_add_sysfs() ... If a given cpu is not in cpu_present and cpu hotplug is disabled, arch can skip setting up the cpu_dev. Arch cpuidle driver should pass correct cpu mask for registration, but failing to do so by the driver causes error to propagate and crash like this: [ 30.076045] Unable to handle kernel paging request for data at address 0x00000048 [ 30.076100] Faulting instruction address: 0xc0000000007b2f30 cpu 0x4d: Vector: 300 (Data Access) at [c000003feb18b670] pc: c0000000007b2f30: kobject_get+0x20/0x70 lr: c0000000007b3c94: kobject_add_internal+0x54/0x3f0 sp: c000003feb18b8f0 msr: 9000000000009033 dar: 48 dsisr: 40000000 current = 0xc000003fd2ed8300 paca = 0xc00000000fbab500 softe: 0 irq_happened: 0x01 pid = 1, comm = swapper/0 Linux version 4.11.0-rc2-svaidy+ (sv@sagarika) (gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12) ) #10 SMP Sun Mar 19 00:08:09 IST 2017 enter ? for help [c000003feb18b960] c0000000007b3c94 kobject_add_internal+0x54/0x3f0 [c000003feb18b9f0] c0000000007b43a4 kobject_init_and_add+0x64/0xa0 [c000003feb18ba70] c000000000e284f4 cpuidle_add_sysfs+0xb4/0x130 [c000003feb18baf0] c000000000e26038 cpuidle_register_device+0x118/0x1c0 [c000003feb18bb30] c000000000e26c48 cpuidle_register+0x78/0x120 [c000003feb18bbc0] c00000000168fd9c powernv_processor_idle_init+0x110/0x1c4 [c000003feb18bc40] c00000000000cff8 do_one_initcall+0x68/0x1d0 [c000003feb18bd00] c0000000016242f4 kernel_init_freeable+0x280/0x360 [c000003feb18bdc0] c00000000000d864 kernel_init+0x24/0x160 [c000003feb18be30] c00000000000b4e8 ret_from_kernel_thread+0x5c/0x74 Validating cpu_dev fixes the crash and reports correct error message like: [ 30.163506] Failed to register cpuidle device for cpu136 [ 30.173329] Registration of powernv driver failed. Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> [ rjw: Comment massage ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2017-03-21 22:26:37 +01:00
..
accessibility
acpi	acpi/processor: Check for duplicate processor ids at hotplug time	2017-03-11 14:41:20 +01:00
amba
android	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
ata	ahci: qoriq: correct the sata ecc setting error	2017-03-09 11:55:23 -05:00
atm	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
auxdisplay
base	drivers core: remove assert_held_device_hotplug()	2017-03-16 16:56:19 -07:00
bcma
block	A fix for the recently discovered misdirected requests bug present in	2017-03-10 11:05:47 -08:00
bluetooth	btmrvl: fix spelling mistake: "actived" -> "activated"	2017-02-19 00:26:37 +01:00
bus	ARM: SoC driver updates	2017-02-23 15:57:04 -08:00
cdrom	Merge branch 'for-4.11/next' into for-4.11/linus-merge	2017-02-17 14:08:19 -07:00
char	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2017-03-15 09:26:04 -07:00
clk	ARM: SoC: late DT updates for v4.11	2017-03-03 16:15:48 -08:00
clocksource	Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-17 13:13:35 -07:00
connector
cpufreq	Merge branches 'pm-cpufreq-fixes' and 'intel_pstate-fixes'	2017-03-18 00:45:09 +01:00
cpuidle	cpuidle: Validate cpu_dev in cpuidle_add_sysfs()	2017-03-21 22:26:37 +01:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2017-03-15 09:26:04 -07:00
dax	device-dax: fix debug output typo	2017-03-10 19:56:56 -08:00
dca
devfreq	scripts/spelling.txt: add "followings" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
dio
dma	sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:40 +01:00
dma-buf	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
edac	Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-02-20 12:47:44 -08:00
eisa
extcon	scripts/spelling.txt: add "swithc" pattern and fix typo instances	2017-02-27 18:43:46 -08:00
firewire	Merge branch 'idr-4.11' of git://git.infradead.org/users/willy/linux-dax	2017-02-28 20:29:41 -08:00
firmware	Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-07 14:25:48 -08:00
fmc
fpga
fsi
gpio	This is the bulk of GPIO changes for the v4.11 cycle	2017-02-23 08:46:04 -08:00
gpu	Merge branch 'drm-fixes-4.11' of git://people.freedesktop.org/~agd5f/linux into drm-fixes	2017-03-16 11:28:44 +10:00
hid	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
hsi	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
hv	scripts/spelling.txt: add "disble(d)" pattern and fix typo instances	2017-03-09 17:01:09 -08:00
hwmon	scripts/spelling.txt: add "followings" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
hwspinlock
hwtracing	mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf	2017-02-24 17:46:54 -08:00
i2c	Revert "i2c: copy device properties when using i2c_register_board_info()"	2017-03-09 16:41:48 +01:00
ide	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
idle	Power management turbostat utility updates for v4.11-rc1	2017-03-02 17:41:27 -08:00
iio	Staging/IIO driver fixes for 4.11-rc1	2017-03-04 11:26:18 -08:00
infiniband	sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:40 +01:00
input	Input: rmi4 - f30: detect INPUT_PROP_BUTTONPAD from the button count	2017-03-01 10:01:56 -08:00
iommu	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
ipack
irqchip	irqchip/irqdomain updates for 4.11-rc2	2017-03-09 12:06:41 +01:00
isdn	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-03-14 21:31:23 -07:00
leds	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/loadavg.h>	2017-03-02 08:42:27 +01:00
lguest	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
lightnvm	lightnvm: set default lun range when no luns are specified	2017-02-15 08:27:21 -07:00
macintosh	powerpc/pmac: Fix crash in dma-mapping.h with NULL dma_ops	2017-03-10 14:17:23 +11:00
mailbox	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
mcb
md	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md	2017-03-16 11:43:48 -07:00
media	Merge branch 'akpm' (patches from Andrew)	2017-03-10 08:34:42 -08:00
memory	ARM: SoC driver updates	2017-02-23 15:57:04 -08:00
memstick	Merge branch 'for-4.11/next' into for-4.11/linus-merge	2017-02-17 14:08:19 -07:00
message	SCSI misc on 20170220	2017-02-21 11:51:42 -08:00
mfd	staging/iio driver patches for 4.11-rc1	2017-02-22 12:14:01 -08:00
misc	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
mmc	sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>	2017-03-02 08:42:27 +01:00
mtd	scripts/spelling.txt: add "disble(d)" pattern and fix typo instances	2017-03-09 17:01:09 -08:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-03-14 21:31:23 -07:00
nfc	scripts/spelling.txt: add "omited" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
ntb	ntb: ntb_hw_intel: link_poll isn't clearing the pending status properly	2017-02-16 23:11:26 -05:00
nubus
nvdimm	nfit, libnvdimm: fix interleave set cookie calculation	2017-03-01 00:49:42 -08:00
nvme	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2017-03-03 10:53:35 -08:00
nvmem
of	DeviceTree updates for 4.11:	2017-02-22 19:23:14 -08:00
oprofile	sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:40 +01:00
parisc	Merge branch 'parisc-4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux	2017-03-03 16:20:06 -08:00
parport	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
pci	PCI/ASPM: Always set link->downstream to avoid NULL dereference on remove	2017-03-07 14:23:30 -06:00
pcmcia
perf	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>	2017-03-02 08:42:27 +01:00
phy	pci-v4.11-changes	2017-02-23 11:53:22 -08:00
pinctrl	pinctrl: uniphier: change pin names of aio/xirq for LD11	2017-03-06 14:38:05 +01:00
platform	platform-drivers-x86 for v4.11-2	2017-03-13 13:23:43 -07:00
pnp
power	scripts/spelling.txt: add "intialization" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
powercap
pps
ps3	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
ptp	4.11 is going to be a relatively large release for KVM, with a little over	2017-02-22 18:22:53 -08:00
pwm	pwm: Changes for v4.11-rc1	2017-03-01 09:46:02 -08:00
rapidio	rapidio: use get_user_pages_unlocked()	2017-02-27 18:43:45 -08:00
ras
regulator	regulator: Updates for v4.11	2017-02-20 17:23:57 -08:00
remoteproc	virtio, vhost: optimizations, fixes	2017-03-02 13:53:13 -08:00
reset	ARM: SoC driver updates	2017-02-23 15:57:04 -08:00
rpmsg	virtio, vhost: optimizations, fixes	2017-03-02 13:53:13 -08:00
rtc	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
s390	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
sbus
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2017-03-19 18:06:31 -07:00
sfi
sh
sn
soc	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
spi	sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>	2017-03-02 08:42:27 +01:00
spmi
ssb
staging	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-03-14 21:31:23 -07:00
target	tcmu: Convert cmd_time_out into backend device attribute	2017-03-18 16:32:30 -07:00
tc
thermal	sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>	2017-03-02 08:42:27 +01:00
thunderbolt
tty	serial: samsung: Continue to work if DMA request fails	2017-03-07 19:58:37 +01:00
uio	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
usb	USB fixes for 4.11-rc2	2017-03-11 00:08:39 -08:00
uwb
vfio	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
vhost	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
video	sched/headers: Remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-03 01:45:16 +01:00
virt
virtio	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
vlynq
vme
w1	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
watchdog	watchdog: retu: restore MFD dependency	2017-03-01 06:15:10 -08:00
xen	drivers, xen: convert grant_map.users from atomic_t to refcount_t	2017-03-13 12:45:18 -04:00
zorro
Kconfig
Makefile	pci-v4.11-changes	2017-02-23 11:53:22 -08:00