ARCH_NO_PREEMPT disables the selection of CONFIG_PREEMPT_VOLUNTARY and CONFIG_PREEMPT, but architectures which set this config option still support preempt count for hard and softirq accounting.
There is absolutely no reason to prevent lockdep from using the preempt counter nor is there a reason to prevent the enablement of CONFIG_DEBUG_ATOMIC_SLEEP on such architectures.
Remove the dependencies, which affects ALPHA, HEXAGON, M68K and UM.
Signed-off-by: Thomas Gleixner tglx@linutronix.de Cc: Richard Henderson rth@twiddle.net Cc: Ivan Kokshaysky ink@jurassic.park.msu.ru Cc: Matt Turner mattst88@gmail.com Cc: linux-alpha@vger.kernel.org Cc: Jeff Dike jdike@addtoit.com Cc: Richard Weinberger richard@nod.at Cc: Anton Ivanov anton.ivanov@cambridgegreys.com Cc: linux-um@lists.infradead.org Cc: Brian Cain bcain@codeaurora.org Cc: linux-hexagon@vger.kernel.org Cc: Geert Uytterhoeven geert@linux-m68k.org Cc: linux-m68k@lists.linux-m68k.org --- lib/Kconfig.debug | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1161,7 +1161,7 @@ config PROVE_LOCKING select DEBUG_RWSEMS select DEBUG_WW_MUTEX_SLOWPATH select DEBUG_LOCK_ALLOC - select PREEMPT_COUNT if !ARCH_NO_PREEMPT + select PREEMPT_COUNT select TRACE_IRQFLAGS default n help @@ -1323,7 +1323,6 @@ config DEBUG_ATOMIC_SLEEP bool "Sleep inside atomic section checking" select PREEMPT_COUNT depends on DEBUG_KERNEL - depends on !ARCH_NO_PREEMPT help If you say Y here, various routines which may sleep will become very noisy if they are called inside atomic sections: when a spinlock is