compat: Remove skbuff header helper backports.

These have existed largely since v2.6.22, so it's well overdue.

Signed-off-by: Joe Stringer <joe@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>

10 files changed, 0 insertions, 189 deletions

diff --git a/datapath/linux/Modules.mk b/datapath/linux/Modules.mk
index 7e334cbf0..5d38766d0 100644
--- a/datapath/linux/Modules.mk
+++ b/datapath/linux/Modules.mk
@@ -37,15 +37,11 @@ openvswitch_headers += \
 	linux/compat/include/linux/err.h \
 	linux/compat/include/linux/etherdevice.h \
 	linux/compat/include/linux/flex_array.h \
-	linux/compat/include/linux/icmp.h \
-	linux/compat/include/linux/icmpv6.h \
 	linux/compat/include/linux/if.h \
-	linux/compat/include/linux/if_arp.h \
 	linux/compat/include/linux/if_ether.h \
 	linux/compat/include/linux/if_link.h \
 	linux/compat/include/linux/if_vlan.h \
 	linux/compat/include/linux/in.h \
-	linux/compat/include/linux/ip.h \
 	linux/compat/include/linux/ipv6.h \
 	linux/compat/include/linux/jiffies.h \
 	linux/compat/include/linux/kconfig.h \
@@ -65,13 +61,10 @@ openvswitch_headers += \
 	linux/compat/include/linux/rcupdate.h \
 	linux/compat/include/linux/reciprocal_div.h \
 	linux/compat/include/linux/rtnetlink.h \
-	linux/compat/include/linux/sctp.h \
 	linux/compat/include/linux/skbuff.h \
 	linux/compat/include/linux/stddef.h \
-	linux/compat/include/linux/tcp.h \
 	linux/compat/include/linux/types.h \
 	linux/compat/include/linux/u64_stats_sync.h \
-	linux/compat/include/linux/udp.h \
 	linux/compat/include/linux/workqueue.h \
 	linux/compat/include/net/checksum.h \
 	linux/compat/include/net/dst.h \
diff --git a/datapath/linux/compat/include/linux/icmp.h b/datapath/linux/compat/include/linux/icmp.h
deleted file mode 100644
index 4be4d2b61..000000000
--- a/datapath/linux/compat/include/linux/icmp.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef __LINUX_ICMP_WRAPPER_H
-#define __LINUX_ICMP_WRAPPER_H 1
-
-#include_next <linux/icmp.h>
-
-#ifndef HAVE_SKBUFF_HEADER_HELPERS
-static inline struct icmphdr *icmp_hdr(const struct sk_buff *skb)
-{
-	return (struct icmphdr *)skb_transport_header(skb);
-}
-#endif
-
-#endif
diff --git a/datapath/linux/compat/include/linux/icmpv6.h b/datapath/linux/compat/include/linux/icmpv6.h
deleted file mode 100644
index 06d91b395..000000000
--- a/datapath/linux/compat/include/linux/icmpv6.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef __LINUX_ICMPV6_WRAPPER_H
-#define __LINUX_ICMPV6_WRAPPER_H 1
-
-#include_next <linux/icmpv6.h>
-
-#ifndef HAVE_ICMP6_HDR
-static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb)
-{
-	return (struct icmp6hdr *)skb_transport_header(skb);
-}
-#endif
-
-#endif
diff --git a/datapath/linux/compat/include/linux/if_arp.h b/datapath/linux/compat/include/linux/if_arp.h
deleted file mode 100644
index e48d6ba0d..000000000
--- a/datapath/linux/compat/include/linux/if_arp.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef __LINUX_IF_ARP_WRAPPER_H
-#define __LINUX_IF_ARP_WRAPPER_H 1
-
-#include_next <linux/if_arp.h>
-
-#ifndef HAVE_SKBUFF_HEADER_HELPERS
-#include <linux/skbuff.h>
-
-static inline struct arphdr *arp_hdr(const struct sk_buff *skb)
-{
-	return (struct arphdr *)skb_network_header(skb);
-}
-#endif /* !HAVE_SKBUFF_HEADER_HELPERS */
-
-#endif
diff --git a/datapath/linux/compat/include/linux/ip.h b/datapath/linux/compat/include/linux/ip.h
deleted file mode 100644
index c64306e08..000000000
--- a/datapath/linux/compat/include/linux/ip.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef __LINUX_IP_WRAPPER_H
-#define __LINUX_IP_WRAPPER_H 1
-
-#include_next <linux/ip.h>
-
-#ifndef HAVE_SKBUFF_HEADER_HELPERS
-#include <linux/skbuff.h>
-
-static inline struct iphdr *ip_hdr(const struct sk_buff *skb)
-{
-	return (struct iphdr *)skb_network_header(skb);
-}
-
-static inline unsigned int ip_hdrlen(const struct sk_buff *skb)
-{
-	return ip_hdr(skb)->ihl * 4;
-}
-#endif /* !HAVE_SKBUFF_HEADER_HELPERS */
-
-#endif
diff --git a/datapath/linux/compat/include/linux/ipv6.h b/datapath/linux/compat/include/linux/ipv6.h
index 0971c56eb..8a79f9c0e 100644
--- a/datapath/linux/compat/include/linux/ipv6.h
+++ b/datapath/linux/compat/include/linux/ipv6.h
@@ -6,13 +6,6 @@
 struct frag_queue;
 struct inet_frags;
 
-#ifndef HAVE_SKBUFF_HEADER_HELPERS
-static inline struct ipv6hdr *ipv6_hdr(const struct sk_buff *skb)
-{
-	return (struct ipv6hdr *)skb_network_header(skb);
-}
-#endif
-
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,17,0)
 void rpl_ip6_expire_frag_queue(struct net *net, struct frag_queue *fq,
 			       struct inet_frags *frags);
diff --git a/datapath/linux/compat/include/linux/sctp.h b/datapath/linux/compat/include/linux/sctp.h
deleted file mode 100644
index b91c9c69d..000000000
--- a/datapath/linux/compat/include/linux/sctp.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef __LINUX_SCTP_WRAPPER_H
-#define __LINUX_SCTP_WRAPPER_H 1
-
-#include_next <linux/sctp.h>
-
-#ifndef HAVE_SKBUFF_HEADER_HELPERS
-static inline struct sctphdr *sctp_hdr(const struct sk_buff *skb)
-{
-	return (struct sctphdr *)skb_transport_header(skb);
-}
-#endif /* HAVE_SKBUFF_HEADER_HELPERS */
-
-#endif
diff --git a/datapath/linux/compat/include/linux/skbuff.h b/datapath/linux/compat/include/linux/skbuff.h
index ab54a83fa..376dfda8a 100644
--- a/datapath/linux/compat/include/linux/skbuff.h
+++ b/datapath/linux/compat/include/linux/skbuff.h
@@ -111,71 +111,6 @@ static inline struct rtable *skb_rtable(const struct sk_buff *skb)
 #define CHECKSUM_COMPLETE CHECKSUM_HW
 #endif
 
-#ifndef HAVE_SKBUFF_HEADER_HELPERS
-static inline unsigned char *skb_transport_header(const struct sk_buff *skb)
-{
-	return skb->h.raw;
-}
-
-static inline void skb_reset_transport_header(struct sk_buff *skb)
-{
-	skb->h.raw = skb->data;
-}
-
-static inline void skb_set_transport_header(struct sk_buff *skb,
-			const int offset)
-{
-	skb->h.raw = skb->data + offset;
-}
-
-static inline unsigned char *skb_network_header(const struct sk_buff *skb)
-{
-	return skb->nh.raw;
-}
-
-static inline void skb_reset_network_header(struct sk_buff *skb)
-{
-	skb->nh.raw = skb->data;
-}
-
-static inline void skb_set_network_header(struct sk_buff *skb, const int offset)
-{
-	skb->nh.raw = skb->data + offset;
-}
-
-static inline unsigned char *skb_mac_header(const struct sk_buff *skb)
-{
-	return skb->mac.raw;
-}
-
-static inline void skb_reset_mac_header(struct sk_buff *skb)
-{
-	skb->mac_header = skb->data;
-}
-
-static inline void skb_set_mac_header(struct sk_buff *skb, const int offset)
-{
-	skb->mac.raw = skb->data + offset;
-}
-
-static inline int skb_transport_offset(const struct sk_buff *skb)
-{
-	return skb_transport_header(skb) - skb->data;
-}
-
-static inline int skb_network_offset(const struct sk_buff *skb)
-{
-	return skb_network_header(skb) - skb->data;
-}
-
-static inline void skb_copy_to_linear_data(struct sk_buff *skb,
-					   const void *from,
-					   const unsigned int len)
-{
-	memcpy(skb->data, from, len);
-}
-#endif	/* !HAVE_SKBUFF_HEADER_HELPERS */
-
 #ifndef HAVE_SKB_WARN_LRO
 #ifndef NETIF_F_LRO
 static inline bool skb_warn_if_lro(const struct sk_buff *skb)
diff --git a/datapath/linux/compat/include/linux/tcp.h b/datapath/linux/compat/include/linux/tcp.h
deleted file mode 100644
index 9260b191b..000000000
--- a/datapath/linux/compat/include/linux/tcp.h
+++ /dev/null
@@ -1,18 +0,0 @@
-#ifndef __LINUX_TCP_WRAPPER_H
-#define __LINUX_TCP_WRAPPER_H 1
-
-#include_next <linux/tcp.h>
-
-#ifndef HAVE_SKBUFF_HEADER_HELPERS
-static inline struct tcphdr *tcp_hdr(const struct sk_buff *skb)
-{
-	return (struct tcphdr *)skb_transport_header(skb);
-}
-
-static inline unsigned int tcp_hdrlen(const struct sk_buff *skb)
-{
-	return tcp_hdr(skb)->doff * 4;
-}
-#endif /* !HAVE_SKBUFF_HEADER_HELPERS */
-
-#endif
diff --git a/datapath/linux/compat/include/linux/udp.h b/datapath/linux/compat/include/linux/udp.h
deleted file mode 100644
index 6a805b58e..000000000
--- a/datapath/linux/compat/include/linux/udp.h
+++ /dev/null
@@ -1,18 +0,0 @@
-#ifndef __LINUX_UDP_WRAPPER_H
-#define __LINUX_UDP_WRAPPER_H 1
-
-#include_next <linux/udp.h>
-
-#ifndef HAVE_SKBUFF_HEADER_HELPERS
-static inline struct udphdr *udp_hdr(const struct sk_buff *skb)
-{
-	return (struct udphdr *)skb_transport_header(skb);
-}
-#endif /* HAVE_SKBUFF_HEADER_HELPERS */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0)
-static inline void udp_encap_enable(void)
-{
-}
-#endif
-#endif