[dpdk-stable] [PATCH 18.11 1/2] kni: fix ethtool dev_open build error

[Kevin Traynor]

Build error about dev_open() arguments similar to
commit 5c97df1243da ("kni: fix build for dev_open in Linux 5.0")
seen when building with RHEL 8.2 and ethtool enabled.

kernel/linux/kni/ethtool/ixgbe/ixgbe_ethtool.c:
In function ‘ixgbe_diag_test’:
kernel/linux/kni/ethtool/ixgbe/ixgbe_ethtool.c:1748:4:
error: too few arguments to function ‘dev_open’
    dev_open(netdev);
    ^~~~~~~~
kernel/linux/kni/ethtool/ixgbe/ixgbe_ethtool.c:18:
./include/linux/netdevice.h:2795:5: note: declared here
 int dev_open(struct net_device *dev, struct netlink_ext_ack *extack);
     ^~~~~~~~

This is because Linux kernel
commit 00f54e68924e ("net: core: dev: Add extack argument to dev_open()")
is backported to RHEL/CentOS since 8.1.

Extend the fix in
commit 5c97df1243da ("kni: fix build for dev_open in Linux 5.0")
to cover RHEL/CentOS 8.1 onwards.

Signed-off-by: Kevin Traynor <ktraynor at redhat.com>
---
 kernel/linux/kni/ethtool/igb/kcompat.h   | 6 ++++--
 kernel/linux/kni/ethtool/ixgbe/kcompat.h | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/kernel/linux/kni/ethtool/igb/kcompat.h b/kernel/linux/kni/ethtool/igb/kcompat.h
index 964317508d..adab05aa8a 100644
--- a/kernel/linux/kni/ethtool/igb/kcompat.h
+++ b/kernel/linux/kni/ethtool/igb/kcompat.h
@@ -3948,8 +3948,10 @@ skb_set_hash(struct sk_buff *skb, __u32 hash, __always_unused int type)
 #endif
 
-#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0) )
+#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0)) \
+	|| (defined(RHEL_RELEASE_CODE) \
+	   && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8, 1))))
 #define dev_open(x) dev_open(x, NULL)
 #define HAVE_NDO_BRIDGE_SETLINK_EXTACK
-#endif /* >= 5.0.0 */
+#endif /* >= 5.0.0 or >= RHEL/CentOS 8.1 */
 
 #if ( LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0) )
diff --git a/kernel/linux/kni/ethtool/ixgbe/kcompat.h b/kernel/linux/kni/ethtool/ixgbe/kcompat.h
index e1671e91a9..73e2c3fb96 100644
--- a/kernel/linux/kni/ethtool/ixgbe/kcompat.h
+++ b/kernel/linux/kni/ethtool/ixgbe/kcompat.h
@@ -3132,7 +3132,9 @@ static inline int __kc_pci_vfs_assigned(struct pci_dev *dev)
 #endif /* >= 3.16.0 */
 
-#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0) )
+#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0)) \
+	|| (defined(RHEL_RELEASE_CODE) \
+	   && (RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(8, 1))))
 #define dev_open(x) dev_open(x, NULL)
-#endif /* >= 5.0.0 */
+#endif /* >= 5.0.0 or >= RHEL/CentOS 8.1 */
 
 /*
-- 
2.21.3