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authorBen Pfaff <blp@nicira.com>2011-02-04 12:35:49 -0800
committerBen Pfaff <blp@nicira.com>2011-02-04 12:36:21 -0800
commit1269f7ae5f4bf23205de2cd45220b2382af78393 (patch)
treec34356f33f39ad797ab262015fdeac2ce84e2818 /acinclude.m4
parent5e5ce0741f8b7dbee54d1407e7b0af5ee813b38f (diff)
datapath: Tolerate backporting of rtnl_link_stats64 (as in RHEL 6).
Red Hat Enterprise Linux 6 has a 2.6.32 kernel but it backports the rtnl_link_stats64 structure that was introduced in 2.6.35, so we need to check whether it was defined instead of just guessing based on the kernel version number. Build-tested only, on 2.6.32-71.14.1.el6 (RHEL 6), linux-2.6.18-128.1.6.el5.xs5.5.0.496.101 (XenServer 5.5.0), 2.6.18-128.1.6.el5.xs5.5.0.505.1024xen (XenServer 5.5.0 update 1), and upstream 2.6.18, 2.6.26, 2.6.29, 2.6.33, 2.6.34, 2.6.36, all for i386, plus 2.6.36 for x86-64. My machine's userspace headers have <linux/if_link.h> but not rtnl_link_stats64. Jesse Gross tested the case where <linux/if_link.h> has rtnl_link_stats64, on Ubuntu 10.10. Reported-by: Geoff White <gwhite@nicira.com> Tested-by: Jesse Gross <jesse@nicira.com>
Diffstat (limited to 'acinclude.m4')
-rw-r--r--acinclude.m42
1 files changed, 2 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4
index 0cd14272..fed950bd 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -204,6 +204,8 @@ AC_DEFUN([OVS_CHECK_LINUX26_COMPAT], [
OVS_GREP_IFELSE([$KSRC26/include/net/netlink.h], [nla_get_be16])
OVS_GREP_IFELSE([$KSRC26/include/net/netlink.h], [nla_find_nested])
+ OVS_GREP_IFELSE([$KSRC26/include/linux/if_link.h], [rtnl_link_stats64])
+
OVS_CHECK_LOG2_H
if cmp -s datapath/linux-2.6/kcompat.h.new \