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>

path: root/sound/soc/jz4740/Kconfig

config SND_JZ4740_SOC
	tristate "SoC Audio for Ingenic JZ4740 SoC"
	depends on MACH_JZ4740 || COMPILE_TEST
	select SND_SOC_GENERIC_DMAENGINE_PCM
	help
	  Say Y or M if you want to add support for codecs attached to
	  the JZ4740 I2S interface. You will also need to select the audio
	  interfaces to support below.

if SND_JZ4740_SOC

config SND_JZ4740_SOC_I2S
	tristate "SoC Audio (I2S protocol) for Ingenic JZ4740 SoC"
	depends on HAS_IOMEM
	help
	  Say Y if you want to use I2S protocol and I2S codec on Ingenic JZ4740
	  based boards.

config SND_JZ4740_SOC_QI_LB60
	tristate "SoC Audio support for Qi LB60"
	depends on HAS_IOMEM
	depends on JZ4740_QI_LB60 || COMPILE_TEST
	select SND_JZ4740_SOC_I2S
    select SND_SOC_JZ4740_CODEC
	help
	  Say Y if you want to add support for ASoC audio on the Qi LB60 board
	  a.k.a Qi Ben NanoNote.

endif