diff --git a/net/rds/send.c b/net/rds/send.c
index 81471b2..9b951a0 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -843,6 +843,8 @@
 
 		case RDS_CMSG_ATOMIC_CSWP:
 		case RDS_CMSG_ATOMIC_FADD:
+		case RDS_CMSG_MASKED_ATOMIC_CSWP:
+		case RDS_CMSG_MASKED_ATOMIC_FADD:
 			cmsg_groups |= 1;
 			size += sizeof(struct scatterlist);
 			break;
@@ -894,6 +896,8 @@
 			break;
 		case RDS_CMSG_ATOMIC_CSWP:
 		case RDS_CMSG_ATOMIC_FADD:
+		case RDS_CMSG_MASKED_ATOMIC_CSWP:
+		case RDS_CMSG_MASKED_ATOMIC_FADD:
 			ret = rds_cmsg_atomic(rs, rm, cmsg);
 			break;