diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c
index 55828a836c01..01341f524a93 100644
--- a/drivers/cxl/core/mbox.c
+++ b/drivers/cxl/core/mbox.c
@@ -942,11 +942,11 @@ void cxl_event_trace_record(struct cxl_memdev *cxlmd,
 
 			if (evt->gen_media.media_hdr.descriptor &
 			    CXL_GMER_EVT_DESC_THRESHOLD_EVENT)
-				WARN_ON_ONCE((evt->gen_media.media_hdr.type &
+				WARN_ON_ONCE((evt->gen_media.media_hdr.type ==
 					      CXL_GMER_MEM_EVT_TYPE_AP_CME_COUNTER_EXPIRE) &&
 					     !get_unaligned_le24(evt->gen_media.cme_count));
 			else
-				WARN_ON_ONCE(evt->gen_media.media_hdr.type &
+				WARN_ON_ONCE(evt->gen_media.media_hdr.type ==
 					     CXL_GMER_MEM_EVT_TYPE_AP_CME_COUNTER_EXPIRE);
 
 			trace_cxl_general_media(cxlmd, type, cxlr, hpa,
@@ -957,11 +957,11 @@ void cxl_event_trace_record(struct cxl_memdev *cxlmd,
 
 			if (evt->dram.media_hdr.descriptor &
 			    CXL_GMER_EVT_DESC_THRESHOLD_EVENT)
-				WARN_ON_ONCE((evt->dram.media_hdr.type &
+				WARN_ON_ONCE((evt->dram.media_hdr.type ==
 					      CXL_DER_MEM_EVT_TYPE_AP_CME_COUNTER_EXPIRE) &&
 					     !get_unaligned_le24(evt->dram.cvme_count));
 			else
-				WARN_ON_ONCE(evt->dram.media_hdr.type &
+				WARN_ON_ONCE(evt->dram.media_hdr.type ==
 					     CXL_DER_MEM_EVT_TYPE_AP_CME_COUNTER_EXPIRE);
 
 			trace_cxl_dram(cxlmd, type, cxlr, hpa, hpa_alias,