#
# 1-wire bus master configuration
#
menu "1-wire Bus Masters"
config W1_MASTER_MATROX
tristate "Matrox G400 transport layer for 1-wire"
depends on PCI
help
Say Y here if you want to communicate with your 1-wire devices
using Matrox's G400 GPIO pins.
This support is also available as a module. If so, the module
will be called matrox_w1.
config W1_MASTER_DS2490
tristate "DS2490 USB <-> W1 transport layer for 1-wire"
depends on USB
help
Say Y here if you want to have a driver for DS2490 based USB <-> W1 bridges,
for example DS9490*.
This support is also available as a module. If so, the module
will be called ds2490.
config W1_MASTER_DS2482
tristate "Maxim DS2482 I2C to 1-Wire bridge"
depends on I2C
help
If you say yes here you get support for the Maxim DS2482
I2C to 1-Wire bridge.
This driver can also be built as a module. If so, the module
will be called ds2482.
config W1_MASTER_MXC
tristate "Freescale MXC 1-wire busmaster"
depends on ARCH_MXC || COMPILE_TEST
help
Say Y here to enable MXC 1-wire host
config W1_MASTER_DS1WM
tristate "Maxim DS1WM 1-wire busmaster"
help
Say Y here to enable the DS1WM 1-wire driver, such as that
in HP iPAQ devices like h5xxx, h2200, and ASIC3-based like
hx4700.
config W1_MASTER_GPIO
tristate "GPIO 1-wire busmaster"
depends on GPIOLIB
help
Say Y here if you want to communicate with your 1-wire devices using
GPIO pins. This driver uses the GPIO API to control the wire.
This support is also available as a module. If so, the module
will be called w1-gpio.
config HDQ_MASTER_OMAP
tristate "OMAP HDQ driver"
depends on ARCH_OMAP
help
Say Y here if you want support for the 1-wire or HDQ Interface
on an OMAP processor.
endmenu
?h=nds-private-remove'>logtreecommitdiff
tracing: Fix hwlat kthread migration
The hwlat tracer creates a kernel thread at start of the tracer. It is
pinned to a single CPU and will move to the next CPU after each period of
running. If the user modifies the migration thread's affinity, it will not
change after that happens.
The original code created the thread at the first instance it was called,
but later was changed to destroy the thread after the tracer was finished,
and would not be created until the next instance of the tracer was
established. The code that initialized the affinity was only called on the
initial instantiation of the tracer. After that, it was not initialized, and
the previous affinity did not match the current newly created one, making
it appear that the user modified the thread's affinity when it did not, and
the thread failed to migrate again.
Cc: stable@vger.kernel.org
Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>