The following commit has been merged into the core/rcu branch of tip: Commit-ID: 45015f8840baa8a99f5161d42fc1ca070d534365 Gitweb: https://git.kernel.org/tip/45015f8840baa8a99f5161d42fc1ca070d534365 Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx> AuthorDate: Mon, 14 Sep 2020 20:35:55 +02:00 Committer: Paul E. McKenney <paulmck@xxxxxxxxxx> CommitterDate: Fri, 25 Sep 2020 11:24:14 -07:00 lib/debug: Remove pointless ARCH_NO_PREEMPT dependencies 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. Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx> --- lib/Kconfig.debug | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index e068c3c..f50fbcf 100644 --- 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
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