ar71xx: remove 3.7 support
[openwrt/openwrt.git] / target / linux / ar71xx / patches-3.7 / 902-unaligned_access_hacks.patch
diff --git a/target/linux/ar71xx/patches-3.7/902-unaligned_access_hacks.patch b/target/linux/ar71xx/patches-3.7/902-unaligned_access_hacks.patch
deleted file mode 100644 (file)
index 70e03ac..0000000
+++ /dev/null
@@ -1,787 +0,0 @@
---- a/arch/mips/include/asm/checksum.h
-+++ b/arch/mips/include/asm/checksum.h
-@@ -104,26 +104,30 @@ static inline __sum16 ip_fast_csum(const
-       const unsigned int *stop = word + ihl;
-       unsigned int csum;
-       int carry;
-+      unsigned int w;
--      csum = word[0];
--      csum += word[1];
--      carry = (csum < word[1]);
-+      csum = net_hdr_word(word++);
-+
-+      w = net_hdr_word(word++);
-+      csum += w;
-+      carry = (csum < w);
-       csum += carry;
--      csum += word[2];
--      carry = (csum < word[2]);
-+      w = net_hdr_word(word++);
-+      csum += w;
-+      carry = (csum < w);
-       csum += carry;
--      csum += word[3];
--      carry = (csum < word[3]);
-+      w = net_hdr_word(word++);
-+      csum += w;
-+      carry = (csum < w);
-       csum += carry;
--      word += 4;
-       do {
--              csum += *word;
--              carry = (csum < *word);
-+              w = net_hdr_word(word++);
-+              csum += w;
-+              carry = (csum < w);
-               csum += carry;
--              word++;
-       } while (word != stop);
-       return csum_fold(csum);
-@@ -192,69 +196,4 @@ static inline __sum16 ip_compute_csum(co
-       return csum_fold(csum_partial(buff, len, 0));
- }
--#define _HAVE_ARCH_IPV6_CSUM
--static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
--                                        const struct in6_addr *daddr,
--                                        __u32 len, unsigned short proto,
--                                        __wsum sum)
--{
--      __asm__(
--      "       .set    push            # csum_ipv6_magic\n"
--      "       .set    noreorder       \n"
--      "       .set    noat            \n"
--      "       addu    %0, %5          # proto (long in network byte order)\n"
--      "       sltu    $1, %0, %5      \n"
--      "       addu    %0, $1          \n"
--
--      "       addu    %0, %6          # csum\n"
--      "       sltu    $1, %0, %6      \n"
--      "       lw      %1, 0(%2)       # four words source address\n"
--      "       addu    %0, $1          \n"
--      "       addu    %0, %1          \n"
--      "       sltu    $1, %0, %1      \n"
--
--      "       lw      %1, 4(%2)       \n"
--      "       addu    %0, $1          \n"
--      "       addu    %0, %1          \n"
--      "       sltu    $1, %0, %1      \n"
--
--      "       lw      %1, 8(%2)       \n"
--      "       addu    %0, $1          \n"
--      "       addu    %0, %1          \n"
--      "       sltu    $1, %0, %1      \n"
--
--      "       lw      %1, 12(%2)      \n"
--      "       addu    %0, $1          \n"
--      "       addu    %0, %1          \n"
--      "       sltu    $1, %0, %1      \n"
--
--      "       lw      %1, 0(%3)       \n"
--      "       addu    %0, $1          \n"
--      "       addu    %0, %1          \n"
--      "       sltu    $1, %0, %1      \n"
--
--      "       lw      %1, 4(%3)       \n"
--      "       addu    %0, $1          \n"
--      "       addu    %0, %1          \n"
--      "       sltu    $1, %0, %1      \n"
--
--      "       lw      %1, 8(%3)       \n"
--      "       addu    %0, $1          \n"
--      "       addu    %0, %1          \n"
--      "       sltu    $1, %0, %1      \n"
--
--      "       lw      %1, 12(%3)      \n"
--      "       addu    %0, $1          \n"
--      "       addu    %0, %1          \n"
--      "       sltu    $1, %0, %1      \n"
--
--      "       addu    %0, $1          # Add final carry\n"
--      "       .set    pop"
--      : "=r" (sum), "=r" (proto)
--      : "r" (saddr), "r" (daddr),
--        "0" (htonl(len)), "1" (htonl(proto)), "r" (sum));
--
--      return csum_fold(sum);
--}
--
- #endif /* _ASM_CHECKSUM_H */
---- a/include/uapi/linux/ip.h
-+++ b/include/uapi/linux/ip.h
-@@ -102,7 +102,7 @@ struct iphdr {
-       __be32  saddr;
-       __be32  daddr;
-       /*The options start here. */
--};
-+} __attribute__((packed, aligned(2)));
- struct ip_auth_hdr {
---- a/include/uapi/linux/ipv6.h
-+++ b/include/uapi/linux/ipv6.h
-@@ -123,7 +123,7 @@ struct ipv6hdr {
-       struct  in6_addr        saddr;
-       struct  in6_addr        daddr;
--};
-+} __attribute__((packed, aligned(2)));
- /* index values for the variables in ipv6_devconf */
---- a/include/uapi/linux/tcp.h
-+++ b/include/uapi/linux/tcp.h
-@@ -54,7 +54,7 @@ struct tcphdr {
-       __be16  window;
-       __sum16 check;
-       __be16  urg_ptr;
--};
-+} __attribute__((packed, aligned(2)));
- /*
-  *    The union cast uses a gcc extension to avoid aliasing problems
-@@ -64,7 +64,7 @@ struct tcphdr {
- union tcp_word_hdr { 
-       struct tcphdr hdr;
-       __be32            words[5];
--}; 
-+} __attribute__((packed, aligned(2)));
- #define tcp_flag_word(tp) ( ((union tcp_word_hdr *)(tp))->words [3]) 
---- a/include/uapi/linux/udp.h
-+++ b/include/uapi/linux/udp.h
-@@ -24,7 +24,7 @@ struct udphdr {
-       __be16  dest;
-       __be16  len;
-       __sum16 check;
--};
-+} __attribute__((packed, aligned(2)));
- /* UDP socket options */
- #define UDP_CORK      1       /* Never send partially complete segments */
---- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
-+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
-@@ -39,8 +39,8 @@ static bool ipv4_pkt_to_tuple(const stru
-       if (ap == NULL)
-               return false;
--      tuple->src.u3.ip = ap[0];
--      tuple->dst.u3.ip = ap[1];
-+      tuple->src.u3.ip = net_hdr_word(ap++);
-+      tuple->dst.u3.ip = net_hdr_word(ap);
-       return true;
- }
---- a/include/uapi/linux/icmp.h
-+++ b/include/uapi/linux/icmp.h
-@@ -80,7 +80,7 @@ struct icmphdr {
-               __be16  mtu;
-       } frag;
-   } un;
--};
-+} __attribute__((packed, aligned(2)));
- /*
---- a/net/ipv4/tcp_input.c
-+++ b/net/ipv4/tcp_input.c
-@@ -3847,13 +3847,14 @@ static bool tcp_parse_aligned_timestamp(
- {
-       const __be32 *ptr = (const __be32 *)(th + 1);
--      if (*ptr == htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16)
--                        | (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP)) {
-+      if (net_hdr_word(ptr) ==
-+          htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
-+          (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP)) {
-               tp->rx_opt.saw_tstamp = 1;
-               ++ptr;
--              tp->rx_opt.rcv_tsval = ntohl(*ptr);
-+              tp->rx_opt.rcv_tsval = get_unaligned_be32(ptr);
-               ++ptr;
--              tp->rx_opt.rcv_tsecr = ntohl(*ptr);
-+              tp->rx_opt.rcv_tsecr = get_unaligned_be32(ptr);
-               return true;
-       }
-       return false;
---- a/include/uapi/linux/in6.h
-+++ b/include/uapi/linux/in6.h
-@@ -36,7 +36,7 @@ struct in6_addr {
- #define s6_addr                       in6_u.u6_addr8
- #define s6_addr16             in6_u.u6_addr16
- #define s6_addr32             in6_u.u6_addr32
--};
-+} __attribute__((packed, aligned(2)));
- /* IPv6 Wildcard Address (::) and Loopback Address (::1) defined in RFC2553
-  * NOTE: Be aware the IN6ADDR_* constants and in6addr_* externals are defined
---- a/net/ipv6/af_inet6.c
-+++ b/net/ipv6/af_inet6.c
-@@ -61,6 +61,7 @@
- #endif
- #include <asm/uaccess.h>
-+#include <asm/unaligned.h>
- #include <linux/mroute6.h>
- MODULE_AUTHOR("Cast of dozens");
-@@ -687,7 +688,7 @@ bool ipv6_opt_accepted(const struct sock
-               if ((opt->hop && (np->rxopt.bits.hopopts ||
-                                 np->rxopt.bits.ohopopts)) ||
-                   ((IPV6_FLOWINFO_MASK &
--                    *(__be32 *)skb_network_header(skb)) &&
-+                    net_hdr_word(skb_network_header(skb))) &&
-                    np->rxopt.bits.rxflow) ||
-                   (opt->srcrt && (np->rxopt.bits.srcrt ||
-                    np->rxopt.bits.osrcrt)) ||
-@@ -880,7 +881,7 @@ static struct sk_buff **ipv6_gro_receive
-                       continue;
-               iph2 = ipv6_hdr(p);
--              first_word = *(__be32 *)iph ^ *(__be32 *)iph2 ;
-+              first_word = net_hdr_word(iph) ^ net_hdr_word(iph2);
-               /* All fields must match except length and Traffic Class. */
-               if (nlen != skb_network_header_len(p) ||
---- a/net/ipv6/route.c
-+++ b/net/ipv6/route.c
-@@ -938,7 +938,7 @@ void ip6_route_input(struct sk_buff *skb
-               .flowi6_iif = skb->dev->ifindex,
-               .daddr = iph->daddr,
-               .saddr = iph->saddr,
--              .flowlabel = (* (__be32 *) iph) & IPV6_FLOWINFO_MASK,
-+              .flowlabel = net_hdr_word(iph) & IPV6_FLOWINFO_MASK,
-               .flowi6_mark = skb->mark,
-               .flowi6_proto = iph->nexthdr,
-       };
-@@ -1108,7 +1108,7 @@ void ip6_update_pmtu(struct sk_buff *skb
-       fl6.flowi6_flags = 0;
-       fl6.daddr = iph->daddr;
-       fl6.saddr = iph->saddr;
--      fl6.flowlabel = (*(__be32 *) iph) & IPV6_FLOWINFO_MASK;
-+      fl6.flowlabel = net_hdr_word(iph) & IPV6_FLOWINFO_MASK,
-       dst = ip6_route_output(net, NULL, &fl6);
-       if (!dst->error)
-@@ -1136,7 +1136,7 @@ void ip6_redirect(struct sk_buff *skb, s
-       fl6.flowi6_flags = 0;
-       fl6.daddr = iph->daddr;
-       fl6.saddr = iph->saddr;
--      fl6.flowlabel = (*(__be32 *) iph) & IPV6_FLOWINFO_MASK;
-+      fl6.flowlabel = net_hdr_word(iph) & IPV6_FLOWINFO_MASK,
-       dst = ip6_route_output(net, NULL, &fl6);
-       if (!dst->error)
---- a/net/ipv6/tcp_ipv6.c
-+++ b/net/ipv6/tcp_ipv6.c
-@@ -64,6 +64,7 @@
- #include <net/secure_seq.h>
- #include <net/tcp_memcontrol.h>
-+#include <asm/unaligned.h>
- #include <asm/uaccess.h>
- #include <linux/proc_fs.h>
-@@ -851,10 +852,10 @@ static void tcp_v6_send_response(struct
-       topt = (__be32 *)(t1 + 1);
-       if (ts) {
--              *topt++ = htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
--                              (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP);
--              *topt++ = htonl(tcp_time_stamp);
--              *topt++ = htonl(ts);
-+              put_unaligned_be32((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
-+                      (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP, topt++);
-+              put_unaligned_be32(tcp_time_stamp, topt++);
-+              put_unaligned_be32(ts, topt++);
-       }
- #ifdef CONFIG_TCP_MD5SIG
---- a/include/linux/ipv6.h
-+++ b/include/linux/ipv6.h
-@@ -4,6 +4,7 @@
- #include <uapi/linux/ipv6.h>
- #define ipv6_optlen(p)  (((p)->hdrlen+1) << 3)
-+
- /*
-  * This structure contains configuration options per IPv6 link.
-  */
---- a/net/ipv6/datagram.c
-+++ b/net/ipv6/datagram.c
-@@ -360,12 +360,12 @@ int ipv6_recv_error(struct sock *sk, str
-                               *(struct in6_addr *)(nh + serr->addr_offset);
-                       if (np->sndflow)
-                               sin->sin6_flowinfo =
--                                      (*(__be32 *)(nh + serr->addr_offset - 24) &
--                                       IPV6_FLOWINFO_MASK);
-+                                      net_hdr_word(nh + serr->addr_offset - 24) &
-+                                       IPV6_FLOWINFO_MASK;
-                       if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
-                               sin->sin6_scope_id = IP6CB(skb)->iif;
-               } else {
--                      ipv6_addr_set_v4mapped(*(__be32 *)(nh + serr->addr_offset),
-+                      ipv6_addr_set_v4mapped(net_hdr_word(nh + serr->addr_offset),
-                                              &sin->sin6_addr);
-               }
-       }
-@@ -492,9 +492,10 @@ int datagram_recv_ctl(struct sock *sk, s
-               put_cmsg(msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass);
-       }
--      if (np->rxopt.bits.rxflow && (*(__be32 *)nh & IPV6_FLOWINFO_MASK)) {
--              __be32 flowinfo = *(__be32 *)nh & IPV6_FLOWINFO_MASK;
--              put_cmsg(msg, SOL_IPV6, IPV6_FLOWINFO, sizeof(flowinfo), &flowinfo);
-+      if (np->rxopt.bits.rxflow) {
-+              __be32 flowinfo = net_hdr_word(nh) & IPV6_FLOWINFO_MASK;
-+              if (flowinfo)
-+                      put_cmsg(msg, SOL_IPV6, IPV6_FLOWINFO, sizeof(flowinfo), &flowinfo);
-       }
-       /* HbH is allowed only once */
-@@ -680,12 +681,12 @@ int datagram_send_ctl(struct net *net, s
-                       }
-                       if (fl6->flowlabel&IPV6_FLOWINFO_MASK) {
--                              if ((fl6->flowlabel^*(__be32 *)CMSG_DATA(cmsg))&~IPV6_FLOWINFO_MASK) {
-+                              if ((fl6->flowlabel^net_hdr_word(CMSG_DATA(cmsg)))&~IPV6_FLOWINFO_MASK) {
-                                       err = -EINVAL;
-                                       goto exit_f;
-                               }
-                       }
--                      fl6->flowlabel = IPV6_FLOWINFO_MASK & *(__be32 *)CMSG_DATA(cmsg);
-+                      fl6->flowlabel = IPV6_FLOWINFO_MASK & net_hdr_word(CMSG_DATA(cmsg));
-                       break;
-               case IPV6_2292HOPOPTS:
---- a/net/ipv6/ip6_gre.c
-+++ b/net/ipv6/ip6_gre.c
-@@ -445,7 +445,7 @@ static void ip6gre_err(struct sk_buff *s
-       t = ip6gre_tunnel_lookup(skb->dev, &ipv6h->daddr, &ipv6h->saddr,
-                               flags & GRE_KEY ?
--                              *(((__be32 *)p) + (grehlen / 4) - 1) : 0,
-+                              net_hdr_word(((__be32 *)p) + (grehlen / 4) - 1) : 0,
-                               p[1]);
-       if (t == NULL)
-               return;
-@@ -537,11 +537,11 @@ static int ip6gre_rcv(struct sk_buff *sk
-                       offset += 4;
-               }
-               if (flags&GRE_KEY) {
--                      key = *(__be32 *)(h + offset);
-+                      key = net_hdr_word(h + offset);
-                       offset += 4;
-               }
-               if (flags&GRE_SEQ) {
--                      seqno = ntohl(*(__be32 *)(h + offset));
-+                      seqno = ntohl(net_hdr_word(h + offset));
-                       offset += 4;
-               }
-       }
-@@ -788,7 +788,7 @@ static netdev_tx_t ip6gre_xmit2(struct s
-        *      Push down and install the IP header.
-        */
-       ipv6h = ipv6_hdr(skb);
--      *(__be32 *)ipv6h = fl6->flowlabel | htonl(0x60000000);
-+      net_hdr_word(ipv6h) = fl6->flowlabel | htonl(0x60000000);
-       dsfield = INET_ECN_encapsulate(0, dsfield);
-       ipv6_change_dsfield(ipv6h, ~INET_ECN_MASK, dsfield);
-       ipv6h->hop_limit = tunnel->parms.hop_limit;
-@@ -805,7 +805,7 @@ static netdev_tx_t ip6gre_xmit2(struct s
-               if (tunnel->parms.o_flags&GRE_SEQ) {
-                       ++tunnel->o_seqno;
--                      *ptr = htonl(tunnel->o_seqno);
-+                      net_hdr_word(ptr) = htonl(tunnel->o_seqno);
-                       ptr--;
-               }
-               if (tunnel->parms.o_flags&GRE_KEY) {
-@@ -913,9 +913,9 @@ static inline int ip6gre_xmit_ipv6(struc
-       dsfield = ipv6_get_dsfield(ipv6h);
-       if (t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS)
--              fl6.flowlabel |= (*(__be32 *) ipv6h & IPV6_TCLASS_MASK);
-+              fl6.flowlabel |= net_hdr_word(ipv6h) & IPV6_TCLASS_MASK;
-       if (t->parms.flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
--              fl6.flowlabel |= (*(__be32 *) ipv6h & IPV6_FLOWLABEL_MASK);
-+              fl6.flowlabel |= net_hdr_word(ipv6h) & IPV6_FLOWLABEL_MASK;
-       if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK)
-               fl6.flowi6_mark = skb->mark;
-@@ -1256,7 +1256,7 @@ static int ip6gre_header(struct sk_buff
-       struct ipv6hdr *ipv6h = (struct ipv6hdr *)skb_push(skb, t->hlen);
-       __be16 *p = (__be16 *)(ipv6h+1);
--      *(__be32 *)ipv6h = t->fl.u.ip6.flowlabel | htonl(0x60000000);
-+      net_hdr_word(ipv6h) = t->fl.u.ip6.flowlabel | htonl(0x60000000);
-       ipv6h->hop_limit = t->parms.hop_limit;
-       ipv6h->nexthdr = NEXTHDR_GRE;
-       ipv6h->saddr = t->parms.laddr;
---- a/net/ipv6/ip6_output.c
-+++ b/net/ipv6/ip6_output.c
-@@ -216,7 +216,7 @@ int ip6_xmit(struct sock *sk, struct sk_
-       if (hlimit < 0)
-               hlimit = ip6_dst_hoplimit(dst);
--      *(__be32 *)hdr = htonl(0x60000000 | (tclass << 20)) | fl6->flowlabel;
-+      net_hdr_word(hdr) = htonl(0x60000000 | (tclass << 20)) | fl6->flowlabel;
-       hdr->payload_len = htons(seg_len);
-       hdr->nexthdr = proto;
---- a/net/ipv6/ip6_tunnel.c
-+++ b/net/ipv6/ip6_tunnel.c
-@@ -1110,9 +1110,9 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, str
-       dsfield = ipv6_get_dsfield(ipv6h);
-       if (t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS)
--              fl6.flowlabel |= (*(__be32 *) ipv6h & IPV6_TCLASS_MASK);
-+              fl6.flowlabel |= net_hdr_word(ipv6h) & IPV6_TCLASS_MASK;
-       if (t->parms.flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
--              fl6.flowlabel |= (*(__be32 *) ipv6h & IPV6_FLOWLABEL_MASK);
-+              fl6.flowlabel |= net_hdr_word(ipv6h) & IPV6_FLOWLABEL_MASK;
-       if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK)
-               fl6.flowi6_mark = skb->mark;
---- a/net/ipv6/exthdrs.c
-+++ b/net/ipv6/exthdrs.c
-@@ -622,7 +622,7 @@ static bool ipv6_hop_jumbo(struct sk_buf
-               goto drop;
-       }
--      pkt_len = ntohl(*(__be32 *)(nh + optoff + 2));
-+      pkt_len = ntohl(net_hdr_word(nh + optoff + 2));
-       if (pkt_len <= IPV6_MAXPLEN) {
-               IP6_INC_STATS_BH(net, ipv6_skb_idev(skb),
-                                IPSTATS_MIB_INHDRERRORS);
---- a/include/linux/types.h
-+++ b/include/linux/types.h
-@@ -211,5 +211,11 @@ struct callback_head {
- };
- #define rcu_head callback_head
-+struct net_hdr_word {
-+       u32 words[1];
-+} __attribute__((packed, aligned(2)));
-+
-+#define net_hdr_word(_p) (((struct net_hdr_word *) (_p))->words[0])
-+
- #endif /*  __ASSEMBLY__ */
- #endif /* _LINUX_TYPES_H */
---- a/net/ipv4/af_inet.c
-+++ b/net/ipv4/af_inet.c
-@@ -1388,8 +1388,8 @@ static struct sk_buff **inet_gro_receive
-       if (unlikely(ip_fast_csum((u8 *)iph, 5)))
-               goto out_unlock;
--      id = ntohl(*(__be32 *)&iph->id);
--      flush = (u16)((ntohl(*(__be32 *)iph) ^ skb_gro_len(skb)) | (id ^ IP_DF));
-+      id = ntohl(net_hdr_word(&iph->id));
-+      flush = (u16)((ntohl(net_hdr_word(iph)) ^ skb_gro_len(skb)) | (id ^ IP_DF));
-       id >>= 16;
-       for (p = *head; p; p = p->next) {
---- a/net/ipv4/route.c
-+++ b/net/ipv4/route.c
-@@ -465,7 +465,7 @@ static struct neighbour *ipv4_neigh_look
-       else if (skb)
-               pkey = &ip_hdr(skb)->daddr;
--      n = __ipv4_neigh_lookup(dev, *(__force u32 *)pkey);
-+      n = __ipv4_neigh_lookup(dev, net_hdr_word(pkey));
-       if (n)
-               return n;
-       return neigh_create(&arp_tbl, pkey, dev);
---- a/net/ipv4/tcp_output.c
-+++ b/net/ipv4/tcp_output.c
-@@ -456,15 +456,17 @@ static void tcp_options_write(__be32 *pt
-        */
-       if (unlikely(OPTION_MD5 & options)) {
-               if (unlikely(OPTION_COOKIE_EXTENSION & options)) {
--                      *ptr++ = htonl((TCPOPT_COOKIE << 24) |
--                                     (TCPOLEN_COOKIE_BASE << 16) |
--                                     (TCPOPT_MD5SIG << 8) |
--                                     TCPOLEN_MD5SIG);
-+                      net_hdr_word(ptr++) =
-+                              htonl((TCPOPT_COOKIE << 24) |
-+                                    (TCPOLEN_COOKIE_BASE << 16) |
-+                                    (TCPOPT_MD5SIG << 8) |
-+                                    TCPOLEN_MD5SIG);
-               } else {
--                      *ptr++ = htonl((TCPOPT_NOP << 24) |
--                                     (TCPOPT_NOP << 16) |
--                                     (TCPOPT_MD5SIG << 8) |
--                                     TCPOLEN_MD5SIG);
-+                      net_hdr_word(ptr++) =
-+                              htonl((TCPOPT_NOP << 24) |
-+                                    (TCPOPT_NOP << 16) |
-+                                    (TCPOPT_MD5SIG << 8) |
-+                                    TCPOLEN_MD5SIG);
-               }
-               options &= ~OPTION_COOKIE_EXTENSION;
-               /* overload cookie hash location */
-@@ -473,26 +475,28 @@ static void tcp_options_write(__be32 *pt
-       }
-       if (unlikely(opts->mss)) {
--              *ptr++ = htonl((TCPOPT_MSS << 24) |
--                             (TCPOLEN_MSS << 16) |
--                             opts->mss);
-+              net_hdr_word(ptr++) =
-+                      htonl((TCPOPT_MSS << 24) | (TCPOLEN_MSS << 16) |
-+                            opts->mss);
-       }
-       if (likely(OPTION_TS & options)) {
-               if (unlikely(OPTION_SACK_ADVERTISE & options)) {
--                      *ptr++ = htonl((TCPOPT_SACK_PERM << 24) |
--                                     (TCPOLEN_SACK_PERM << 16) |
--                                     (TCPOPT_TIMESTAMP << 8) |
--                                     TCPOLEN_TIMESTAMP);
-+                      net_hdr_word(ptr++) =
-+                              htonl((TCPOPT_SACK_PERM << 24) |
-+                                    (TCPOLEN_SACK_PERM << 16) |
-+                                    (TCPOPT_TIMESTAMP << 8) |
-+                                    TCPOLEN_TIMESTAMP);
-                       options &= ~OPTION_SACK_ADVERTISE;
-               } else {
--                      *ptr++ = htonl((TCPOPT_NOP << 24) |
--                                     (TCPOPT_NOP << 16) |
--                                     (TCPOPT_TIMESTAMP << 8) |
--                                     TCPOLEN_TIMESTAMP);
-+                      net_hdr_word(ptr++) =
-+                              htonl((TCPOPT_NOP << 24) |
-+                                    (TCPOPT_NOP << 16) |
-+                                    (TCPOPT_TIMESTAMP << 8) |
-+                                    TCPOLEN_TIMESTAMP);
-               }
--              *ptr++ = htonl(opts->tsval);
--              *ptr++ = htonl(opts->tsecr);
-+              net_hdr_word(ptr++) = htonl(opts->tsval);
-+              net_hdr_word(ptr++) = htonl(opts->tsecr);
-       }
-       /* Specification requires after timestamp, so do it now.
-@@ -512,19 +516,20 @@ static void tcp_options_write(__be32 *pt
-                       __u8 *p = (__u8 *)ptr;
-                       /* 16-bit multiple */
--                      *p++ = TCPOPT_COOKIE;
--                      *p++ = TCPOLEN_COOKIE_BASE + cookie_size;
--                      *p++ = *cookie_copy++;
--                      *p++ = *cookie_copy++;
-+                      net_hdr_word(p++) = TCPOPT_COOKIE;
-+                      net_hdr_word(p++) = TCPOLEN_COOKIE_BASE + cookie_size;
-+                      net_hdr_word(p++) = *cookie_copy++;
-+                      net_hdr_word(p++) = *cookie_copy++;
-                       ptr++;
-                       cookie_size -= 2;
-               } else {
-                       /* 32-bit multiple */
--                      *ptr++ = htonl(((TCPOPT_NOP << 24) |
--                                      (TCPOPT_NOP << 16) |
--                                      (TCPOPT_COOKIE << 8) |
--                                      TCPOLEN_COOKIE_BASE) +
--                                     cookie_size);
-+                      net_hdr_word(ptr++) =
-+                              htonl(((TCPOPT_NOP << 24) |
-+                                     (TCPOPT_NOP << 16) |
-+                                     (TCPOPT_COOKIE << 8) |
-+                                     TCPOLEN_COOKIE_BASE) +
-+                                    cookie_size);
-               }
-               if (cookie_size > 0) {
-@@ -534,17 +539,19 @@ static void tcp_options_write(__be32 *pt
-       }
-       if (unlikely(OPTION_SACK_ADVERTISE & options)) {
--              *ptr++ = htonl((TCPOPT_NOP << 24) |
--                             (TCPOPT_NOP << 16) |
--                             (TCPOPT_SACK_PERM << 8) |
--                             TCPOLEN_SACK_PERM);
-+              net_hdr_word(ptr++) =
-+                      htonl((TCPOPT_NOP << 24) |
-+                            (TCPOPT_NOP << 16) |
-+                            (TCPOPT_SACK_PERM << 8) |
-+                            TCPOLEN_SACK_PERM);
-       }
-       if (unlikely(OPTION_WSCALE & options)) {
--              *ptr++ = htonl((TCPOPT_NOP << 24) |
--                             (TCPOPT_WINDOW << 16) |
--                             (TCPOLEN_WINDOW << 8) |
--                             opts->ws);
-+              net_hdr_word(ptr++) =
-+                      htonl((TCPOPT_NOP << 24) |
-+                            (TCPOPT_WINDOW << 16) |
-+                            (TCPOLEN_WINDOW << 8) |
-+                            opts->ws);
-       }
-       if (unlikely(opts->num_sack_blocks)) {
-@@ -552,16 +559,17 @@ static void tcp_options_write(__be32 *pt
-                       tp->duplicate_sack : tp->selective_acks;
-               int this_sack;
--              *ptr++ = htonl((TCPOPT_NOP  << 24) |
--                             (TCPOPT_NOP  << 16) |
--                             (TCPOPT_SACK <<  8) |
--                             (TCPOLEN_SACK_BASE + (opts->num_sack_blocks *
-+              net_hdr_word(ptr++) =
-+                      htonl((TCPOPT_NOP << 24) |
-+                            (TCPOPT_NOP << 16) |
-+                            (TCPOPT_SACK << 8) |
-+                            (TCPOLEN_SACK_BASE + (opts->num_sack_blocks *
-                                                    TCPOLEN_SACK_PERBLOCK)));
-               for (this_sack = 0; this_sack < opts->num_sack_blocks;
-                    ++this_sack) {
--                      *ptr++ = htonl(sp[this_sack].start_seq);
--                      *ptr++ = htonl(sp[this_sack].end_seq);
-+                      net_hdr_word(ptr++) = htonl(sp[this_sack].start_seq);
-+                      net_hdr_word(ptr++) = htonl(sp[this_sack].end_seq);
-               }
-               tp->rx_opt.dsack = 0;
-@@ -570,9 +578,10 @@ static void tcp_options_write(__be32 *pt
-       if (unlikely(OPTION_FAST_OPEN_COOKIE & options)) {
-               struct tcp_fastopen_cookie *foc = opts->fastopen_cookie;
--              *ptr++ = htonl((TCPOPT_EXP << 24) |
--                             ((TCPOLEN_EXP_FASTOPEN_BASE + foc->len) << 16) |
--                             TCPOPT_FASTOPEN_MAGIC);
-+              net_hdr_word(ptr++) =
-+                      htonl((TCPOPT_EXP << 24) |
-+                            ((TCPOLEN_EXP_FASTOPEN_BASE + foc->len) << 16) |
-+                            TCPOPT_FASTOPEN_MAGIC);
-               memcpy(ptr, foc->val, foc->len);
-               if ((foc->len & 3) == 2) {
---- a/net/ipv4/igmp.c
-+++ b/net/ipv4/igmp.c
-@@ -470,7 +470,7 @@ static struct sk_buff *add_grec(struct s
-               if (!skb)
-                       return NULL;
-               psrc = (__be32 *)skb_put(skb, sizeof(__be32));
--              *psrc = psf->sf_inaddr;
-+              net_hdr_word(psrc) = psf->sf_inaddr;
-               scount++; stotal++;
-               if ((type == IGMPV3_ALLOW_NEW_SOURCES ||
-                    type == IGMPV3_BLOCK_OLD_SOURCES) && psf->sf_crcount) {
---- a/net/ipv4/ip_gre.c
-+++ b/net/ipv4/ip_gre.c
-@@ -533,7 +533,7 @@ static void ipgre_err(struct sk_buff *sk
-               return;
-       if (flags & GRE_KEY)
--              key = *(((__be32 *)p) + (grehlen / 4) - 1);
-+              key = net_hdr_word(((__be32 *)p) + (grehlen / 4) - 1);
-       switch (type) {
-       default:
---- a/include/uapi/linux/igmp.h
-+++ b/include/uapi/linux/igmp.h
-@@ -32,7 +32,7 @@ struct igmphdr {
-       __u8 code;              /* For newer IGMP */
-       __sum16 csum;
-       __be32 group;
--};
-+} __attribute__((packed, aligned(2)));
- /* V3 group record types [grec_type] */
- #define IGMPV3_MODE_IS_INCLUDE                1
-@@ -48,7 +48,7 @@ struct igmpv3_grec {
-       __be16  grec_nsrcs;
-       __be32  grec_mca;
-       __be32  grec_src[0];
--};
-+} __attribute__((packed, aligned(2)));
- struct igmpv3_report {
-       __u8 type;
-@@ -57,7 +57,7 @@ struct igmpv3_report {
-       __be16 resv2;
-       __be16 ngrec;
-       struct igmpv3_grec grec[0];
--};
-+} __attribute__((packed, aligned(2)));
- struct igmpv3_query {
-       __u8 type;
-@@ -78,7 +78,7 @@ struct igmpv3_query {
-       __u8 qqic;
-       __be16 nsrcs;
-       __be32 srcs[0];
--};
-+} __attribute__((packed, aligned(2)));
- #define IGMP_HOST_MEMBERSHIP_QUERY    0x11    /* From RFC1112 */
- #define IGMP_HOST_MEMBERSHIP_REPORT   0x12    /* Ditto */
---- a/net/core/flow_dissector.c
-+++ b/net/core/flow_dissector.c
-@@ -137,7 +137,7 @@ ipv6:
-               nhoff += poff;
-               ports = skb_header_pointer(skb, nhoff, sizeof(_ports), &_ports);
-               if (ports)
--                      flow->ports = *ports;
-+                      flow->ports = net_hdr_word(ports);
-       }
-       return true;
---- a/include/uapi/linux/icmpv6.h
-+++ b/include/uapi/linux/icmpv6.h
-@@ -76,7 +76,7 @@ struct icmp6hdr {
- #define icmp6_addrconf_other  icmp6_dataun.u_nd_ra.other
- #define icmp6_rt_lifetime     icmp6_dataun.u_nd_ra.rt_lifetime
- #define icmp6_router_pref     icmp6_dataun.u_nd_ra.router_pref
--};
-+} __attribute__((packed, aligned(2)));
- #define ICMPV6_ROUTER_PREF_LOW                0x3
---- a/include/net/ndisc.h
-+++ b/include/net/ndisc.h
-@@ -142,10 +142,10 @@ static inline u32 ndisc_hashfn(const voi
- {
-       const u32 *p32 = pkey;
--      return (((p32[0] ^ hash32_ptr(dev)) * hash_rnd[0]) +
--              (p32[1] * hash_rnd[1]) +
--              (p32[2] * hash_rnd[2]) +
--              (p32[3] * hash_rnd[3]));
-+      return (((net_hdr_word(&p32[0]) ^ hash32_ptr(dev)) * hash_rnd[0]) +
-+              (net_hdr_word(&p32[1]) * hash_rnd[1]) +
-+              (net_hdr_word(&p32[2]) * hash_rnd[2]) +
-+              (net_hdr_word(&p32[3]) * hash_rnd[3]));
- }
- static inline struct neighbour *__ipv6_neigh_lookup(struct neigh_table *tbl, struct net_device *dev, const void *pkey)
---- a/net/sched/cls_u32.c
-+++ b/net/sched/cls_u32.c
-@@ -142,7 +142,7 @@ next_knode:
-                       data = skb_header_pointer(skb, toff, 4, &hdata);
-                       if (!data)
-                               goto out;
--                      if ((*data ^ key->val) & key->mask) {
-+                      if ((net_hdr_word(data) ^ key->val) & key->mask) {
-                               n = n->next;
-                               goto next_knode;
-                       }
-@@ -193,8 +193,8 @@ check_terminal:
-                                                 &hdata);
-                       if (!data)
-                               goto out;
--                      sel = ht->divisor & u32_hash_fold(*data, &n->sel,
--                                                        n->fshift);
-+                      sel = ht->divisor & u32_hash_fold(net_hdr_word(data),
-+                                                        &n->sel, n->fshift);
-               }
-               if (!(n->sel.flags & (TC_U32_VAROFFSET | TC_U32_OFFSET | TC_U32_EAT)))
-                       goto next_ht;