[PATCH 3/7] irq_work: Remove CONFIG_HAVE_IRQ_WORK

irq work can run on any arch even without IPI support because of the hook on update_process_times(). So lets remove HAVE_IRQ_WORK because it doesn't reflect any backend requirement. Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Andrew Morton Cc

[PATCH 3/7] irq_work: Remove CONFIG_HAVE_IRQ_WORK

irq work can run on any arch even without IPI support because of the hook on update_process_times(). So lets remove HAVE_IRQ_WORK because it doesn't reflect any backend requirement. Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Andrew Morton Cc