From 48ed74e6e3b687bbcd078cf48b8f64f7d6357fb2 Mon Sep 17 00:00:00 2001
From: nathan <nathan>
Date: Thu, 30 Jul 2009 00:30:09 +0000
Subject: [PATCH] b=19856 add configure check for single param to nlmsg_new
 (sles10)

---
 libcfs/libcfs/linux/linux-kernelcomm.c |  5 +++++
 lustre/autoconf/lustre-core.m4         | 30 ++++++++++++++++++++++++++++++
 lustre/tests/copytool.c                |  8 ++++----
 3 files changed, 39 insertions(+), 4 deletions(-)

diff --git a/libcfs/libcfs/linux/linux-kernelcomm.c b/libcfs/libcfs/linux/linux-kernelcomm.c
index b7e1d49..cb5457f 100644
--- a/libcfs/libcfs/linux/linux-kernelcomm.c
+++ b/libcfs/libcfs/linux/linux-kernelcomm.c
@@ -144,7 +144,12 @@ static struct sk_buff *netlink_make_msg(int pid, int seq, void *payload,
         int             len = NLMSG_SPACE(size);
         void            *data;
 
+#ifdef HAVE_NETLINK_NL2
         skb = nlmsg_new(len, GFP_KERNEL);
+#else   /* old */
+        skb = nlmsg_new(len);
+#endif
+
         if (!skb)
                 return NULL;
 
diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 7f634ec..583c6c5 100644
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -1636,6 +1636,7 @@ AC_DEFUN([LC_PROG_LINUX],
          LC_PERCPU_COUNTER
          LC_QUOTA64
          LC_4ARGS_VFS_SYMLINK
+         LC_NETLINK
 
          # does the kernel have VFS intent patches?
          LC_VFS_INTENT_PATCHES
@@ -2013,6 +2014,35 @@ LB_LINUX_TRY_COMPILE([
 ])
 
 #
+# LC_NETLINK
+#
+# If we have netlink.h, and nlmsg_new takes 2 args
+#
+AC_DEFUN([LC_NETLINK],
+[AC_MSG_CHECKING([if netlink.h can be compiled])
+LB_LINUX_TRY_COMPILE([
+        #include <net/netlink.h>
+],[],[
+        AC_MSG_RESULT([yes])
+        AC_DEFINE(HAVE_NETLINK, 1, [net/netlink.h found])
+
+        AC_MSG_CHECKING([if nlmsg_new takes a 2nd argument])
+        LB_LINUX_TRY_COMPILE([
+                #include <net/netlink.h>
+        ],[
+                nlmsg_new(100, GFP_KERNEL);
+        ],[
+                AC_MSG_RESULT([yes])
+                AC_DEFINE(HAVE_NETLINK_NL2, 1, [nlmsg_new takes 2 args])
+        ],[
+                AC_MSG_RESULT([no])
+        ])
+],[
+        AC_MSG_RESULT([no])
+])
+])
+
+#
 # LC_CONFIGURE
 #
 # other configure checks
diff --git a/lustre/tests/copytool.c b/lustre/tests/copytool.c
index c862426..a6d72d3 100644
--- a/lustre/tests/copytool.c
+++ b/lustre/tests/copytool.c
@@ -71,7 +71,7 @@ int main(int argc, char **argv) {
                 default:
                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
                                 argv[0], argv[optind - 1]);
-                        return -EINVAL;
+                        return EINVAL;
                 }
         }
 
@@ -80,11 +80,11 @@ int main(int argc, char **argv) {
         if (rc < 0) {
                 fprintf(stderr, "Can't start copytool interface: %s\n",
                         strerror(-rc));
-                return rc;
+                return -rc;
         }
 
         if (test)
-                return llapi_copytool_fini(&ctdata);
+                return -llapi_copytool_fini(&ctdata);
 
         printf("Waiting for message from kernel (pid=%d)\n", getpid());
 
@@ -123,7 +123,7 @@ int main(int argc, char **argv) {
 
         llapi_copytool_fini(&ctdata);
 
-        return 0;
+        return -rc;
 }
 
 
-- 
1.8.3.1