powerpc/perf: Add an accessor for regs->result
Add an accessor for regs->result so we can use it to store more flags in future. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Acked-by: NPaul Mackerras <paulus@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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