Signed-off-by: Thomas Gleixner Cc: David Howells --- arch/frv/Kconfig | 1 + arch/frv/kernel/process.c | 27 +++++---------------------- 2 files changed, 6 insertions(+), 22 deletions(-) Index: linux-2.6/arch/frv/Kconfig =================================================================== --- linux-2.6.orig/arch/frv/Kconfig +++ linux-2.6/arch/frv/Kconfig @@ -8,6 +8,7 @@ config FRV select HAVE_GENERIC_HARDIRQS select VIRT_TO_BUS select GENERIC_IRQ_SHOW + select GENERIC_IDLE_LOOP select HAVE_DEBUG_BUGVERBOSE select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_CPU_DEVICES Index: linux-2.6/arch/frv/kernel/process.c =================================================================== --- linux-2.6.orig/arch/frv/kernel/process.c +++ linux-2.6/arch/frv/kernel/process.c @@ -59,29 +59,12 @@ static void core_sleep_idle(void) mb(); } -void (*idle)(void) = core_sleep_idle; - -/* - * The idle thread. There's no useful work to be - * done, so just try to conserve power and have a - * low exit latency (ie sit in a loop waiting for - * somebody to say that they'd like to reschedule) - */ -void cpu_idle(void) +void arch_cpu_idle(void) { - /* endless idle loop with no priority at all */ - while (1) { - rcu_idle_enter(); - while (!need_resched()) { - check_pgt_cache(); - - if (!frv_dma_inprogress && idle) - idle(); - } - rcu_idle_exit(); - - schedule_preempt_disabled(); - } + if (!frv_dma_inprogress) + core_sleep_idle(); + else + local_irq_enable(); } void machine_restart(char * __unused)