WSL2-Linux-Kernel/drivers
Rafael J. Wysocki 3c2cc7ff9e ACPI / hotplug / PCI: Consolidate ACPIPHP with ACPI core hotplug
The ACPI-based PCI hotplug (ACPIPHP) code currently attaches its
hotplug context objects directly to ACPI namespace nodes representing
hotplug devices.  However, after recent changes causing struct
acpi_device to be created for every namespace node representing a
device (regardless of its status), that is not necessary any more.
Moreover, it's vulnerable to the theoretical issue that the ACPI
handle passed in the context between handle_hotplug_event() and
hotplug_event_work() may become invalid in the meantime (as a
result of a concurrent table unload).

In principle, this issue might be addressed by adding a non-empty
release handler for ACPIPHP hotplug context objects analogous to
acpi_scan_drop_device(), but that would duplicate the code in that
function and in acpi_device_del_work_fn().  For this reason, it's
better to modify ACPIPHP to attach its device hotplug contexts to
struct device objects representing hotplug devices and make it
use acpi_hotplug_notify_cb() as its notify handler.  At the same
time, acpi_device_hotplug() can be modified to dispatch the new
.hp.event() callback pointing to acpiphp_hotplug_event() from ACPI
device objects associated with PCI devices or use the generic
ACPI device hotplug code for device objects with matching scan
handlers.

This allows the existing code duplication between ACPIPHP and the
ACPI core to be reduced too and makes further ACPI-based device
hotplug consolidation possible.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-06 17:31:37 +01:00
..
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acpi ACPI / hotplug / PCI: Consolidate ACPIPHP with ACPI core hotplug 2014-02-06 17:31:37 +01:00
amba
ata ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
atm
auxdisplay
base regmap: Updates for v3.14 2014-01-25 13:18:00 -08:00
bcma Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-01-30 17:20:32 -08:00
block Bug-fixes: 2014-01-31 08:38:18 -08:00
bluetooth
bus drivers: bus: fix CCI driver kcalloc call parameters swap 2014-01-31 15:15:13 -08:00
cdrom Merge branch 'for-3.14/drivers' of git://git.kernel.dk/linux-block 2014-01-30 11:40:10 -08:00
char ipmi: Add missing rv in ipmi_parisc_probe() 2014-01-30 10:02:54 -08:00
clk The second half of the clock framework pull requeust for 3.14 is 2014-01-28 18:44:53 -08:00
clocksource clocksource: kona: Add basic use of external clock 2014-01-31 21:04:01 -08:00
connector
cpufreq ACPI and power management fixes and cleanups for 3.14-rc1 2014-01-31 09:23:52 -08:00
cpuidle powerpc/powernv/cpuidle: Back-end cpuidle driver for powernv platform. 2014-01-29 17:02:24 +11:00
crypto ARM: driver updates for 3.14 2014-01-23 18:49:36 -08:00
dca
devfreq Merge branches 'pm-cpufreq' and 'pm-devfreq' 2014-01-29 11:48:23 +01:00
dio
dma Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-01-29 20:27:23 -08:00
edac Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-20 12:10:27 -08:00
eisa Revert "EISA: Initialize device before its resources" 2014-01-17 14:57:29 -07:00
extcon
firewire firewire: Enable remote DMA above 4 GB 2014-01-20 01:11:13 +01:00
firmware firmware/google: drop 'select EFI' to avoid recursive dependency 2014-01-27 21:02:40 -08:00
fmc
gpio ARM: driver updates for 3.14 2014-01-23 18:49:36 -08:00
gpu Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-01-29 20:49:12 -08:00
hid Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2014-01-31 09:31:14 -08:00
hsi
hv hyperv: Add support for physically discontinuous receive buffer 2014-01-27 16:40:45 -08:00
hwmon hwmon: Fix SENSORS_TMP102 dependencies to eliminate build errors 2014-02-02 17:59:07 +01:00
hwspinlock
i2c Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2014-01-29 19:56:20 -08:00
ide drivers: ide: Include appropriate header file in ide-pio-blacklist.c 2014-01-28 23:35:09 -08:00
idle ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
iio Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-01-22 21:21:55 -08:00
infiniband Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-01-31 15:31:23 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2014-01-24 17:17:30 -08:00
iommu IOMMU Updates for Linux v3.14 2014-01-29 20:00:13 -08:00
ipack
irqchip mvebu fixes for v3.13 (incremental #2) 2014-01-31 14:59:28 -08:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-01-25 11:17:34 -08:00
leds Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2014-01-28 18:53:01 -08:00
lguest
macintosh Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-01-27 21:11:26 -08:00
mailbox drivers/mailbox/omap: make mbox->irq signed for error handling 2014-01-23 16:36:53 -08:00
md Merge branch 'for-3.14/drivers' of git://git.kernel.dk/linux-block 2014-01-30 11:40:10 -08:00
media Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2014-01-31 09:31:14 -08:00
memory
memstick drivers/memstick/host/rtsx_pci_ms.c: fix ms card data transfer bug 2014-01-23 16:37:04 -08:00
message Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block 2014-01-30 11:19:05 -08:00
mfd regulator: Updates for v3.14 2014-01-25 13:19:10 -08:00
misc Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2014-01-29 18:56:27 -08:00
mmc MMC highlights for 3.14: 2014-01-26 11:00:41 -08:00
mtd * Improve the NOR erasure quirk - now it tries to do as little writes as 2014-01-30 20:04:09 -08:00
net Merge branch 'akpm' (patches from Andrew Morton) 2014-01-30 18:44:44 -08:00
nfc
ntb
nubus
of Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-01-25 11:17:34 -08:00
oprofile
parisc
parport TTY/Serial driver patches for 3.14-rc1 2014-01-20 16:05:23 -08:00
pci ACPI / hotplug / PCI: Consolidate ACPIPHP with ACPI core hotplug 2014-02-06 17:31:37 +01:00
pcmcia PCI changes for the v3.14 merge window: 2014-01-22 16:39:28 -08:00
phy Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-01-25 11:17:34 -08:00
pinctrl ARM: SoC DT updates for 3.14 2014-01-23 18:45:38 -08:00
platform platform/chrome: Cleanups and improvements 2014-01-29 20:06:01 -08:00
pnp Merge branch 'pnp' 2014-01-12 23:48:18 +01:00
power Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-01-25 11:17:34 -08:00
powercap
pps
ps3
ptp ptp_pch: Add dependency on HAS_IOMEM 2014-01-15 14:51:22 -08:00
pwm pwm: Changes for v3.14-rc1 2014-01-27 08:15:51 -08:00
rapidio
regulator regulator: Updates for v3.14 2014-01-25 13:19:10 -08:00
remoteproc
reset
rpmsg
rtc Merge branch 'akpm' (incoming from Andrew) 2014-01-23 19:11:50 -08:00
s390 Second batch of KVM updates. Some minor x86 fixes, 2014-01-31 08:37:32 -08:00
sbus sparc: delete non-required instances of include <linux/init.h> 2014-01-28 23:38:23 -08:00
scsi Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-01-31 15:31:23 -08:00
sfi
sh
sn
spi Merge remote-tracking branch 'agust/next' into next 2014-01-29 16:53:55 +11:00
ssb Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-01-30 17:20:32 -08:00
staging Staging wireless driver for 3.14-rc1 2014-02-01 10:29:59 -08:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-01-31 15:31:23 -08:00
tc
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2014-01-24 17:13:49 -08:00
tty Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-01-30 17:20:32 -08:00
uio
usb Merge remote-tracking branch 'agust/next' into next 2014-01-29 16:53:55 +11:00
uwb
vfio Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-01-27 21:11:26 -08:00
vhost Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-01-31 15:31:23 -08:00
video parisc/sti_console: prefer Linux fonts over built-in ROM fonts 2014-02-02 20:56:47 +01:00
virt
virtio A few simple fixes. Quiet cycle. 2014-01-22 22:24:35 -08:00
vlynq drivers/vlynq/vlynq.c: fix another resource size off by 1 error 2014-01-23 16:36:55 -08:00
vme
w1 drivers/w1/masters/w1-gpio.c: add strong pullup emulation 2014-01-23 16:37:04 -08:00
watchdog watchdog: w83627hf_wdt: Reset watchdog trigger during initialization 2014-01-28 21:35:40 +01:00
xen Bug-fixes: 2014-01-31 08:38:18 -08:00
zorro
Kconfig
Makefile