[dpdk-dev] [PATCH] kni: fix igb build with kernel 4.2

[Pablo de Lara <pablo.de.lara.guarch@intel.com>]

Kernel 4.2 has introduced two new parameters in ndo_bridge_getlink,
which breaks DPDK compilation.

Linux: 7d4f8d87 ("switchdev: ad VLAN support for ports bridge-getlink")

This patch adds the necessary checks to fix it.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
---
 lib/librte_eal/linuxapp/kni/ethtool/igb/igb_main.c | 13 +++++++++----
 lib/librte_eal/linuxapp/kni/ethtool/igb/kcompat.h  |  7 ++++++-
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/lib/librte_eal/linuxapp/kni/ethtool/igb/igb_main.c b/lib/librte_eal/linuxapp/kni/ethtool/igb/igb_main.c
index eed8df6..b330b20 100644
--- a/lib/librte_eal/linuxapp/kni/ethtool/igb/igb_main.c
+++ b/lib/librte_eal/linuxapp/kni/ethtool/igb/igb_main.c
@@ -2250,14 +2250,14 @@ static int igb_ndo_bridge_setlink(struct net_device *dev,
 }
 
 #ifdef HAVE_BRIDGE_FILTER
-#ifdef HAVE_NDO_BRIDGE_GETLINK_FILTER_MASK
+#ifdef HAVE_NDO_BRIDGE_GETLINK_NLFLAGS
 static int igb_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
 				  struct net_device *dev, u32 filter_mask,
 				  int nlflags)
 #else
 static int igb_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
 				  struct net_device *dev, u32 filter_mask)
-#endif /* HAVE_NDO_BRIDGE_GETLINK_FILTER_MASK */
+#endif /* HAVE_NDO_BRIDGE_GETLINK_NLFLAGS */
 #else
 static int igb_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
 				  struct net_device *dev)
@@ -2275,11 +2275,16 @@ static int igb_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
 		mode = BRIDGE_MODE_VEPA;
 
 #ifdef HAVE_NDO_FDB_ADD_VID
-#ifdef HAVE_NDO_BRIDGE_GETLINK_FILTER_MASK
+#ifdef HAVE_NDO_BRIDGE_GETLINK_NLFLAGS
+#ifdef HAVE_NDO_BRIDGE_GETLINK_FILTER_MASK_VLAN_FILL
+	return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode, 0, 0,
+				nlflags, filter_mask, NULL);
+#else
 	return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode, 0, 0, nlflags);
+#endif /* HAVE_NDO_BRIDGE_GETLINK_FILTER_MASK_VLAN_FILL */
 #else
 	return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode, 0, 0);
-#endif /* HAVE_NDO_BRIDGE_GETLINK_FILTER_MASK */
+#endif /* HAVE_NDO_BRIDGE_GETLINK_NLFLAGS */
 #else
 	return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode);
 #endif /* HAVE_NDO_FDB_ADD_VID */
diff --git a/lib/librte_eal/linuxapp/kni/ethtool/igb/kcompat.h b/lib/librte_eal/linuxapp/kni/ethtool/igb/kcompat.h
index 852f80f..5f45b8b 100644
--- a/lib/librte_eal/linuxapp/kni/ethtool/igb/kcompat.h
+++ b/lib/librte_eal/linuxapp/kni/ethtool/igb/kcompat.h
@@ -3899,6 +3899,11 @@ skb_set_hash(struct sk_buff *skb, __u32 hash, __always_unused int type)
 
 #if ( LINUX_VERSION_CODE >= KERNEL_VERSION(4,1,0) )
 /* ndo_bridge_getlink adds new nlflags parameter */
-#define HAVE_NDO_BRIDGE_GETLINK_FILTER_MASK
+#define HAVE_NDO_BRIDGE_GETLINK_NLFLAGS
 #endif /* >= 4.1.0 */
+
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0) )
+/* ndo_bridge_getlink adds new filter_mask and vlan_fill parameters */
+#define HAVE_NDO_BRIDGE_GETLINK_FILTER_MASK_VLAN_FILL
+#endif /* >= 4.2.0 */
 #endif /* _KCOMPAT_H_ */
-- 
2.1.0