[patch 01/13] lib/debug: Remove pointless ARCH_NO_PREEMPT dependencies

[Thomas Gleixner]

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 at linutronix.de>
Cc: Richard Henderson <rth at twiddle.net>
Cc: Ivan Kokshaysky <ink at jurassic.park.msu.ru>
Cc: Matt Turner <mattst88 at gmail.com>
Cc: linux-alpha at vger.kernel.org
Cc: Jeff Dike <jdike at addtoit.com>
Cc: Richard Weinberger <richard at nod.at>
Cc: Anton Ivanov <anton.ivanov at cambridgegreys.com>
Cc: linux-um at lists.infradead.org
Cc: Brian Cain <bcain at codeaurora.org>
Cc: linux-hexagon at vger.kernel.org
Cc: Geert Uytterhoeven <geert at linux-m68k.org>
Cc: linux-m68k at 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