• Steven Rostedt's avatar
    tracing/lockdep: Fix dependency of TRACE_IRQFLAGS · 46b93b74
    Steven Rostedt authored
    When CONFIG_IRQSOFF_TRACER is set and CONFIG_PROVE_LOCKING is not, we
    get the following error:
    
    $  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)
    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)
    
    This is because IRQSOFF_TRACER selects TRACE_IRQFLAGS but TRACE_IRQFLAGS
    has PROVE_LOCKING as a dependency. This code is incorrect, and
    this patch changes the TRACE_IRQFLAGS to be just a simple bool that
    does not depend or select anything. Instead both IRQSOFF_TRACER and
    PROVE_LOCKING select it.
    Reported-by: default avatarRichard Kennedy <richard@rsk.demon.co.uk>
    Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
    46b93b74
Kconfig.debug 39.8 KB