diff mbox series

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

Message ID 20200914204440.969090025@linutronix.de (mailing list archive)
State New, archived
Headers show
Series preempt: Make preempt count unconditional | expand

Commit Message

Thomas Gleixner Sept. 14, 2020, 8:42 p.m. UTC 
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(-)
diff mbox series

Patch

--- 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