On Wed, Jan 31, 2024 at 03:55:39PM -0800, Ira Weiny wrote: > CPER events don't have UUIDs. Therefore UUIDs were removed from the > records passed to trace events and replaced with hard coded values. > > As pointed out by Jonathan, the new defines for the UUIDs present a more > efficient way to assign UUID in trace records.[1] > > Replace memcpy's with the use of static data. Reviewed-by: Alison Schofield <alison.schofield@xxxxxxxxx> > > [1] https://lore.kernel.org/all/20240108132325.00000e9c@xxxxxxxxxx/ > > Suggested-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> > Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx> > --- > drivers/cxl/core/trace.h | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/cxl/core/trace.h b/drivers/cxl/core/trace.h > index 89445435303a..bdf117a33744 100644 > --- a/drivers/cxl/core/trace.h > +++ b/drivers/cxl/core/trace.h > @@ -338,7 +338,7 @@ TRACE_EVENT(cxl_general_media, > > TP_fast_assign( > CXL_EVT_TP_fast_assign(cxlmd, log, rec->hdr); > - memcpy(&__entry->hdr_uuid, &CXL_EVENT_GEN_MEDIA_UUID, sizeof(uuid_t)); > + __entry->hdr_uuid = CXL_EVENT_GEN_MEDIA_UUID; > > /* General Media */ > __entry->dpa = le64_to_cpu(rec->phys_addr); > @@ -425,7 +425,7 @@ TRACE_EVENT(cxl_dram, > > TP_fast_assign( > CXL_EVT_TP_fast_assign(cxlmd, log, rec->hdr); > - memcpy(&__entry->hdr_uuid, &CXL_EVENT_DRAM_UUID, sizeof(uuid_t)); > + __entry->hdr_uuid = CXL_EVENT_DRAM_UUID; > > /* DRAM */ > __entry->dpa = le64_to_cpu(rec->phys_addr); > @@ -573,7 +573,7 @@ TRACE_EVENT(cxl_memory_module, > > TP_fast_assign( > CXL_EVT_TP_fast_assign(cxlmd, log, rec->hdr); > - memcpy(&__entry->hdr_uuid, &CXL_EVENT_MEM_MODULE_UUID, sizeof(uuid_t)); > + __entry->hdr_uuid = CXL_EVENT_MEM_MODULE_UUID; > > /* Memory Module Event */ > __entry->event_type = rec->event_type; > > -- > 2.43.0 >
