opal_unregister_dump_region  205 arch/powerpc/include/asm/opal.h int64_t opal_unregister_dump_region(uint32_t id);
opal_unregister_dump_region  227 arch/powerpc/platforms/powernv/opal-call.c OPAL_CALL(opal_unregister_dump_region,		OPAL_UNREGISTER_DUMP_REGION);
opal_unregister_dump_region 1030 arch/powerpc/platforms/powernv/opal.c 		opal_unregister_dump_region(OPAL_DUMP_REGION_LOG_BUF);