From mboxrd@z Thu Jan 1 00:00:00 1970 From: khilman@linaro.org (Kevin Hilman) Date: Wed, 24 Apr 2013 17:19:13 -0700 Subject: [PATCH] idle: fix hlt/nohlt command-line handling in new generic idle Message-ID: <1366849153-25564-1-git-send-email-khilman@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 Cc: Linus Torvalds Cc: Rusty Russell Cc: Paul McKenney Cc: Peter Zijlstra Cc: Srivatsa S. Bhat Cc: Magnus Damm Signed-off-by: Kevin Hilman --- Applies on tip/smp/hotplug where generic idle feature is added 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 -- 1.8.2