lockdep: Fix trace_hardirqs_on_caller()
Commit dd4e5d3a ("lockdep: Fix trace_[soft,hard]irqs_[on,off]() recursion") made a bit of a mess of the various checks and error conditions. In particular it moved the check for !irqs_disabled() before the spurious enable test, resulting in some warnings. Reported-by: Arnaud Lacombe <lacombar@gmail.com> Reported-by: Dave Jones <davej@redhat.com> Reported-and-tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1311679697.24752.28.camel@twinsSigned-off-by: Ingo Molnar <mingo@elte.hu>
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