"Srivatsa S. Bhat" srivatsa.bhat@linux.vnet.ibm.com writes:
On 04/25/2013 05:49 AM, Kevin Hilman wrote:
commit d1669912 (idle: Implement generic idle function) added a new generic idle along with support for hlt/nohlt command line options to override default idle loop behavior. However, the command-line processing is never compiled.
The command-line handling is wrapped by CONFIG_GENERIC_IDLE_POLL_SETUP and arches that use this feature select it in their Kconfigs. However, no Kconfig definition was created for this option, so it is never enabled, and therefore command-line override of the idle-loop behavior is broken after migrating to the generic idle loop.
To fix, add a Kconfig definition for GENERIC_IDLE_POLL_SETUP.
Tested on ARM (OMAP4/Panda) which enables the command-line overrides by default.
Cc: Thomas Gleixner tglx@linutronix.de Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Rusty Russell rusty@rustcorp.com.au Cc: Paul McKenney paulmck@linux.vnet.ibm.com Cc: Peter Zijlstra peterz@infradead.org Cc: Srivatsa S. Bhat srivatsa.bhat@linux.vnet.ibm.com Cc: Magnus Damm magnus.damm@gmail.com Signed-off-by: Kevin Hilman khilman@linaro.org
Reviewed-by: Srivatsa S. Bhat srivatsa.bhat@linux.vnet.ibm.com
Thanks for the review.
Applies on tip/smp/hotplug where generic idle feature is added
Thomas, can this get into tip/smp/hotplug so the command-line override is not broken in v3.10?
Thanks,
Kevin
arch/Kconfig | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/Kconfig b/arch/Kconfig index 1455579..e0ef57b 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -216,6 +216,9 @@ config USE_GENERIC_SMP_HELPERS config GENERIC_SMP_IDLE_THREAD bool
+config GENERIC_IDLE_POLL_SETUP
bool# Select if arch init_task initializer is different to init/init_task.c config ARCH_INIT_TASK bool