diff --git a/lnet/autoconf/lustre-lnet.m4 b/lnet/autoconf/lustre-lnet.m4
index 6d4a05d4ef..9769d167be 100644
--- a/lnet/autoconf/lustre-lnet.m4
+++ b/lnet/autoconf/lustre-lnet.m4
@@ -536,31 +536,6 @@ AS_IF([test $ENABLEO2IB != "no"], [
                          [function ib_inc_rkey exist])
        ])
 
-       # In MOFED 4.6, the second and third parameters for
-       # ib_post_send() and ib_post_recv() are declared with
-       # 'const'.
-       tmp_flags="$EXTRA_KCFLAGS"
-       EXTRA_KCFLAGS="-Werror"
-       LB_CHECK_COMPILE([if 'ib_post_send() and ib_post_recv()' have const parameters],
-       ib_post_send_recv_const, [
-               #ifdef HAVE_COMPAT_RDMA
-               #undef PACKAGE_NAME
-               #undef PACKAGE_TARNAME
-               #undef PACKAGE_VERSION
-               #undef PACKAGE_STRING
-               #undef PACKAGE_BUGREPORT
-               #undef PACKAGE_URL
-               #include <linux/compat-2.6.h>
-               #endif
-               #include <rdma/ib_verbs.h>
-       ],[
-               ib_post_send(NULL, (const struct ib_send_wr *)NULL,
-                            (const struct ib_send_wr **)NULL);
-       ],[
-               AC_DEFINE(HAVE_IB_POST_SEND_RECV_CONST, 1,
-                       [ib_post_send and ib_post_recv have const parameters])
-       ])
-       EXTRA_KCFLAGS="$tmp_flags"