LU-9447 o2iblnd: Check for 2 arg ib_alloc_pd

[fs/lustre-release.git] / lnet / autoconf / lustre-lnet.m4

diff --git a/lnet/autoconf/lustre-lnet.m4 b/lnet/autoconf/lustre-lnet.m4
index 32167d5..b0fb2ee 100644 (file)
--- a/lnet/autoconf/lustre-lnet.m4
+++ b/lnet/autoconf/lustre-lnet.m4
@@ -538,6 +538,27 @@ AS_IF([test $ENABLEO2IB != "no"], [
                        [struct ib_device.attrs is defined])
        ])
 
+       # A flags argument was added to ib_alloc_pd() in Linux 4.9,
+       # commit ed082d36a7b2c27d1cda55fdfb28af18040c4a89
+       LB_CHECK_COMPILE([if 2arg 'ib_alloc_pd' exists],
+       ib_alloc_pd, [
+               #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_alloc_pd(NULL, 0);
+       ],[
+               AC_DEFINE(HAVE_IB_ALLOC_PD_2ARGS, 1,
+                       [ib_alloc_pd has 2 arguments])
+       ])
+
        LB_CHECK_COMPILE([if function 'ib_inc_rkey' is defined],
        ib_inc_rkey, [
                #ifdef HAVE_COMPAT_RDMA