diff --git a/kmod/src/Makefile.kernelcompat b/kmod/src/Makefile.kernelcompat
index d21b51f5..18818269 100644
--- a/kmod/src/Makefile.kernelcompat
+++ b/kmod/src/Makefile.kernelcompat
@@ -158,15 +158,6 @@ ifneq (,$(shell grep 'sock_create_kern.*struct net' include/linux/net.h))
 ccflags-y += -DKC_SOCK_CREATE_KERN_NET=1
 endif
 
-#
-# v3.18-rc6-1619-gc0371da6047a
-#
-# iov_iter is now part of struct msghdr
-#
-ifneq (,$(shell grep 'struct iov_iter.*msg_iter' include/linux/socket.h))
-ccflags-y += -DKC_MSGHDR_STRUCT_IOV_ITER=1
-endif
-
 #
 # v4.17-rc6-7-g95582b008388
 #
diff --git a/kmod/src/net.c b/kmod/src/net.c
index bed092ad..380ee637 100644
--- a/kmod/src/net.c
+++ b/kmod/src/net.c
@@ -598,12 +598,6 @@ static int k_recvmsg(struct socket *sock, void *buf, unsigned len)
 		.msg_flags = MSG_NOSIGNAL,
 	};
 
-#ifndef KC_MSGHDR_STRUCT_IOV_ITER
-	msg.msg_iov = (struct iovec *)&kv;
-	msg.msg_iovlen = 1;
-#else
-	iov_iter_init(&msg.msg_iter, READ, (struct iovec *)&kv, len, 1);
-#endif
 	return kernel_recvmsg(sock, &msg, &kv, 1, len, msg.msg_flags);
 }
 
diff --git a/kmod/src/quorum.c b/kmod/src/quorum.c
index 1220d3bb..7c385448 100644
--- a/kmod/src/quorum.c
+++ b/kmod/src/quorum.c
@@ -243,10 +243,6 @@ static int send_msg_members(struct super_block *sb, int type, u64 term, int only
 	};
 	struct sockaddr_in sin;
 	struct msghdr mh = {
-#ifndef KC_MSGHDR_STRUCT_IOV_ITER
-		.msg_iov = (struct iovec *)&kv,
-		.msg_iovlen = 1,
-#endif
 		.msg_flags = MSG_DONTWAIT | MSG_NOSIGNAL,
 		.msg_name = &sin,
 		.msg_namelen = sizeof(sin),
@@ -268,9 +264,7 @@ static int send_msg_members(struct super_block *sb, int type, u64 term, int only
 
 		scoutfs_quorum_slot_sin(&qinf->qconf, i, &sin);
 		now = ktime_get();
-#ifdef KC_MSGHDR_STRUCT_IOV_ITER
-		iov_iter_init(&mh.msg_iter, WRITE, (struct iovec *)&kv, 1, sizeof(qmes));
-#endif
+
 		ret = kernel_sendmsg(qinf->sock, &mh, &kv, 1, kv.iov_len);
 		if (ret != kv.iov_len)
 			failed++;
@@ -312,10 +306,6 @@ static int recv_msg(struct super_block *sb, struct quorum_host_msg *msg,
 		.iov_len = sizeof(struct scoutfs_quorum_message),
 	};
 	struct msghdr mh = {
-#ifndef KC_MSGHDR_STRUCT_IOV_ITER
-		.msg_iov = (struct iovec *)&kv,
-		.msg_iovlen = 1,
-#endif
 		.msg_flags = MSG_NOSIGNAL,
 	};
 
@@ -333,9 +323,6 @@ static int recv_msg(struct super_block *sb, struct quorum_host_msg *msg,
 		ret = kc_tcp_sock_set_rcvtimeo(qinf->sock, rel_to);
 	}
 
-#ifdef KC_MSGHDR_STRUCT_IOV_ITER
-	iov_iter_init(&mh.msg_iter, READ, (struct iovec *)&kv, 1, sizeof(struct scoutfs_quorum_message));
-#endif
 	ret = kernel_recvmsg(qinf->sock, &mh, &kv, 1, kv.iov_len, mh.msg_flags);
 	if (ret < 0)
 		return ret;