linux-kernel - TRACE: config warning for IRQSOFF

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Date:	Sat, 21 Aug 2010 15:52:12 +0100
From:	Richard Kennedy <richard@....demon.co.uk>
To:	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>
Cc:	lkml <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...hat.com>
Subject: TRACE: config warning for IRQSOFF_TRACER

In my config with PROVE_LOCKING=n and FTRACE=y (which defaults
IRQSOFF_TRACER to y), I get the following warning from make oldconfig.

scripts/kconfig/conf --oldconfig arch/x86/Kconfig
warning: (IRQSOFF_TRACER && TRACING_SUPPORT && FTRACE &&
TRACE_IRQFLAGS_SUPPORT && !ARCH_USES_GETTIMEOFFSET) selects
TRACE_IRQFLAGS which has unmet direct dependencies (DEBUG_KERNEL &&
TRACE_IRQFLAGS_SUPPORT && PROVE_LOCKING)

The problem is that TRACE_IRQFLAGS depends on PROVE_LOCKING.
Should it select PROVE_LOCKING instead? or is there a better way to fix
this?

regards

Richard




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