#
# RF switch subsystem configuration
#
menuconfig RFKILL
tristate "RF switch subsystem support"
help
Say Y here if you want to have control over RF switches
found on many WiFi and Bluetooth cards.
To compile this driver as a module, choose M here: the
module will be called rfkill.
# LED trigger support
config RFKILL_LEDS
bool
depends on RFKILL
depends on LEDS_TRIGGERS = y || RFKILL = LEDS_TRIGGERS
default y
config RFKILL_INPUT
bool "RF switch input support" if EXPERT
depends on RFKILL
depends on INPUT = y || RFKILL = INPUT
default y if !EXPERT
config RFKILL_REGULATOR
tristate "Generic rfkill regulator driver"
depends on RFKILL || !RFKILL
depends on REGULATOR
help
This options enable controlling radio transmitters connected to
voltage regulator using the regulator framework.
To compile this driver as a module, choose M here: the module will
be called rfkill-regulator.
config RFKILL_GPIO
tristate "GPIO RFKILL driver"
depends on RFKILL
depends on GPIOLIB || COMPILE_TEST
default n
help
If you say yes here you get support of a generic gpio RFKILL
driver.
-private-remove'>nds-private-remove
PCI/ASPM: Handle PCI-to-PCIe bridges as roots of PCIe hierarchies
In a struct pcie_link_state, link->root points to the pcie_link_state of
the root of the PCIe hierarchy. For the topmost link, this points to
itself (link->root = link). For others, we copy the pointer from the
parent (link->root = link->parent->root).
Previously we recognized that Root Ports originated PCIe hierarchies, but
we treated PCI/PCI-X to PCIe Bridges as being in the middle of the
hierarchy, and when we tried to copy the pointer from link->parent->root,
there was no parent, and we dereferenced a NULL pointer:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000090
IP: [<ffffffff9e424350>] pcie_aspm_init_link_state+0x170/0x820
Recognize that PCI/PCI-X to PCIe Bridges originate PCIe hierarchies just
like Root Ports do, so link->root for these devices should also point to
itself.
Fixes: 51ebfc92b72b ("PCI: Enumerate switches below PCI-to-PCIe bridges")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=193411
Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1022181
Tested-by: lists@ssl-mail.com
Tested-by: Jayachandran C. <jnair@caviumnetworks.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org # v4.2+