diff options
Diffstat (limited to 'target/linux/ar71xx/patches-4.14/910-unaligned_access_hacks.patch')
| -rw-r--r-- | target/linux/ar71xx/patches-4.14/910-unaligned_access_hacks.patch | 1017 |
1 files changed, 1017 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-4.14/910-unaligned_access_hacks.patch b/target/linux/ar71xx/patches-4.14/910-unaligned_access_hacks.patch new file mode 100644 index 0000000000..fb8c4e6a02 --- /dev/null +++ b/target/linux/ar71xx/patches-4.14/910-unaligned_access_hacks.patch @@ -0,0 +1,1017 @@ +Index: linux-4.14.61/arch/mips/include/asm/checksum.h +=================================================================== +--- linux-4.14.61.orig/arch/mips/include/asm/checksum.h ++++ linux-4.14.61/arch/mips/include/asm/checksum.h +@@ -134,26 +134,30 @@ 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); +@@ -214,73 +218,6 @@ 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, __u8 proto, +- __wsum sum) +-{ +- __wsum tmp; +- +- __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" (tmp) +- : "r" (saddr), "r" (daddr), +- "0" (htonl(len)), "r" (htonl(proto)), "r" (sum)); +- +- return csum_fold(sum); +-} +- + #include <asm-generic/checksum.h> + #endif /* CONFIG_GENERIC_CSUM */ + +Index: linux-4.14.61/include/uapi/linux/ip.h +=================================================================== +--- linux-4.14.61.orig/include/uapi/linux/ip.h ++++ linux-4.14.61/include/uapi/linux/ip.h +@@ -103,7 +103,7 @@ struct iphdr { + __be32 saddr; + __be32 daddr; + /*The options start here. */ +-}; ++} __attribute__((packed, aligned(2))); + + + struct ip_auth_hdr { +Index: linux-4.14.61/include/uapi/linux/ipv6.h +=================================================================== +--- linux-4.14.61.orig/include/uapi/linux/ipv6.h ++++ linux-4.14.61/include/uapi/linux/ipv6.h +@@ -131,7 +131,7 @@ struct ipv6hdr { + + struct in6_addr saddr; + struct in6_addr daddr; +-}; ++} __attribute__((packed, aligned(2))); + + + /* index values for the variables in ipv6_devconf */ +Index: linux-4.14.61/include/uapi/linux/tcp.h +=================================================================== +--- linux-4.14.61.orig/include/uapi/linux/tcp.h ++++ linux-4.14.61/include/uapi/linux/tcp.h +@@ -55,7 +55,7 @@ struct tcphdr { + __be16 window; + __sum16 check; + __be16 urg_ptr; +-}; ++} __attribute__((packed, aligned(2))); + + /* + * The union cast uses a gcc extension to avoid aliasing problems +@@ -65,7 +65,7 @@ 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]) + +Index: linux-4.14.61/include/uapi/linux/udp.h +=================================================================== +--- linux-4.14.61.orig/include/uapi/linux/udp.h ++++ linux-4.14.61/include/uapi/linux/udp.h +@@ -25,7 +25,7 @@ struct udphdr { + __be16 dest; + __be16 len; + __sum16 check; +-}; ++} __attribute__((packed, aligned(2))); + + /* UDP socket options */ + #define UDP_CORK 1 /* Never send partially complete segments */ +Index: linux-4.14.61/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c +=================================================================== +--- linux-4.14.61.orig/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c ++++ linux-4.14.61/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c +@@ -48,8 +48,8 @@ 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; + } +Index: linux-4.14.61/include/uapi/linux/icmp.h +=================================================================== +--- linux-4.14.61.orig/include/uapi/linux/icmp.h ++++ linux-4.14.61/include/uapi/linux/icmp.h +@@ -82,7 +82,7 @@ struct icmphdr { + } frag; + __u8 reserved[4]; + } un; +-}; ++} __attribute__((packed, aligned(2))); + + + /* +Index: linux-4.14.61/include/uapi/linux/in6.h +=================================================================== +--- linux-4.14.61.orig/include/uapi/linux/in6.h ++++ linux-4.14.61/include/uapi/linux/in6.h +@@ -43,7 +43,7 @@ struct in6_addr { + #define s6_addr16 in6_u.u6_addr16 + #define s6_addr32 in6_u.u6_addr32 + #endif +-}; ++} __attribute__((packed, aligned(2))); + #endif /* __UAPI_DEF_IN6_ADDR */ + + #if __UAPI_DEF_SOCKADDR_IN6 +Index: linux-4.14.61/net/ipv6/tcp_ipv6.c +=================================================================== +--- linux-4.14.61.orig/net/ipv6/tcp_ipv6.c ++++ linux-4.14.61/net/ipv6/tcp_ipv6.c +@@ -39,6 +39,7 @@ + #include <linux/ipsec.h> + #include <linux/times.h> + #include <linux/slab.h> ++#include <asm/unaligned.h> + #include <linux/uaccess.h> + #include <linux/ipv6.h> + #include <linux/icmpv6.h> +@@ -819,10 +820,10 @@ static void tcp_v6_send_response(const s + topt = (__be32 *)(t1 + 1); + + if (tsecr) { +- *topt++ = htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) | +- (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP); +- *topt++ = htonl(tsval); +- *topt++ = htonl(tsecr); ++ put_unaligned_be32((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) | ++ (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP, topt++); ++ put_unaligned_be32(tsval, topt++); ++ put_unaligned_be32(tsecr, topt++); + } + + #ifdef CONFIG_TCP_MD5SIG +Index: linux-4.14.61/include/linux/ipv6.h +=================================================================== +--- linux-4.14.61.orig/include/linux/ipv6.h ++++ linux-4.14.61/include/linux/ipv6.h +@@ -6,6 +6,7 @@ + + #define ipv6_optlen(p) (((p)->hdrlen+1) << 3) + #define ipv6_authlen(p) (((p)->hdrlen+2) << 2) ++ + /* + * This structure contains configuration options per IPv6 link. + */ +Index: linux-4.14.61/net/ipv6/datagram.c +=================================================================== +--- linux-4.14.61.orig/net/ipv6/datagram.c ++++ linux-4.14.61/net/ipv6/datagram.c +@@ -485,7 +485,7 @@ int ipv6_recv_error(struct sock *sk, str + ipv6_iface_scope_id(&sin->sin6_addr, + 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); + sin->sin6_scope_id = 0; + } +@@ -836,12 +836,12 @@ int ip6_datagram_send_ctl(struct net *ne + } + + 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: +Index: linux-4.14.61/net/ipv6/ip6_gre.c +=================================================================== +--- linux-4.14.61.orig/net/ipv6/ip6_gre.c ++++ linux-4.14.61/net/ipv6/ip6_gre.c +@@ -397,7 +397,7 @@ static void ip6gre_err(struct sk_buff *s + return; + ipv6h = (const struct ipv6hdr *)skb->data; + greh = (const struct gre_base_hdr *)(skb->data + offset); +- key = key_off ? *(__be32 *)(skb->data + key_off) : 0; ++ key = key_off ? net_hdr_word((__be32 *)(skb->data + key_off)) : 0; + + t = ip6gre_tunnel_lookup(skb->dev, &ipv6h->daddr, &ipv6h->saddr, + key, greh->protocol); +Index: linux-4.14.61/net/ipv6/exthdrs.c +=================================================================== +--- linux-4.14.61.orig/net/ipv6/exthdrs.c ++++ linux-4.14.61/net/ipv6/exthdrs.c +@@ -733,7 +733,7 @@ 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(net, ipv6_skb_idev(skb), + IPSTATS_MIB_INHDRERRORS); +Index: linux-4.14.61/include/linux/types.h +=================================================================== +--- linux-4.14.61.orig/include/linux/types.h ++++ linux-4.14.61/include/linux/types.h +@@ -229,5 +229,11 @@ struct callback_head { + typedef void (*rcu_callback_t)(struct rcu_head *head); + typedef void (*call_rcu_func_t)(struct rcu_head *head, rcu_callback_t func); + ++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 */ +Index: linux-4.14.61/net/ipv4/af_inet.c +=================================================================== +--- linux-4.14.61.orig/net/ipv4/af_inet.c ++++ linux-4.14.61/net/ipv4/af_inet.c +@@ -1351,8 +1351,8 @@ struct sk_buff **inet_gro_receive(struct + 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) { +Index: linux-4.14.61/net/ipv4/route.c +=================================================================== +--- linux-4.14.61.orig/net/ipv4/route.c ++++ linux-4.14.61/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); +Index: linux-4.14.61/net/ipv4/tcp_output.c +=================================================================== +--- linux-4.14.61.orig/net/ipv4/tcp_output.c ++++ linux-4.14.61/net/ipv4/tcp_output.c +@@ -454,48 +454,53 @@ static void tcp_options_write(__be32 *pt + u16 options = opts->options; /* mungable copy */ + + if (unlikely(OPTION_MD5 & options)) { +- *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); + /* overload cookie hash location */ + opts->hash_location = (__u8 *)ptr; + ptr += 4; + } + + 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); + } + + 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)) { +@@ -503,16 +508,17 @@ 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; +@@ -525,13 +531,14 @@ static void tcp_options_write(__be32 *pt + + if (foc->exp) { + len = TCPOLEN_EXP_FASTOPEN_BASE + foc->len; +- *ptr = htonl((TCPOPT_EXP << 24) | (len << 16) | ++ net_hdr_word(ptr) = ++ htonl((TCPOPT_EXP << 24) | (len << 16) | + TCPOPT_FASTOPEN_MAGIC); + p += TCPOLEN_EXP_FASTOPEN_BASE; + } else { + len = TCPOLEN_FASTOPEN_BASE + foc->len; +- *p++ = TCPOPT_FASTOPEN; +- *p++ = len; ++ net_hdr_word(p++) = TCPOPT_FASTOPEN; ++ net_hdr_word(p++) = len; + } + + memcpy(p, foc->val, foc->len); +Index: linux-4.14.61/net/ipv4/igmp.c +=================================================================== +--- linux-4.14.61.orig/net/ipv4/igmp.c ++++ linux-4.14.61/net/ipv4/igmp.c +@@ -537,7 +537,7 @@ static struct sk_buff *add_grec(struct s + if (!skb) + return NULL; + psrc = 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) { +Index: linux-4.14.61/include/uapi/linux/igmp.h +=================================================================== +--- linux-4.14.61.orig/include/uapi/linux/igmp.h ++++ linux-4.14.61/include/uapi/linux/igmp.h +@@ -33,7 +33,7 @@ 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 +@@ -49,7 +49,7 @@ struct igmpv3_grec { + __be16 grec_nsrcs; + __be32 grec_mca; + __be32 grec_src[0]; +-}; ++} __attribute__((packed, aligned(2))); + + struct igmpv3_report { + __u8 type; +@@ -58,7 +58,7 @@ struct igmpv3_report { + __be16 resv2; + __be16 ngrec; + struct igmpv3_grec grec[0]; +-}; ++} __attribute__((packed, aligned(2))); + + struct igmpv3_query { + __u8 type; +@@ -79,7 +79,7 @@ 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 */ +Index: linux-4.14.61/net/core/flow_dissector.c +=================================================================== +--- linux-4.14.61.orig/net/core/flow_dissector.c ++++ linux-4.14.61/net/core/flow_dissector.c +@@ -108,7 +108,7 @@ __be32 __skb_flow_get_ports(const struct + ports = __skb_header_pointer(skb, thoff + poff, + sizeof(_ports), data, hlen, &_ports); + if (ports) +- return *ports; ++ return (__be32)net_hdr_word(ports); + } + + return 0; +Index: linux-4.14.61/include/uapi/linux/icmpv6.h +=================================================================== +--- linux-4.14.61.orig/include/uapi/linux/icmpv6.h ++++ linux-4.14.61/include/uapi/linux/icmpv6.h +@@ -77,7 +77,7 @@ 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 +Index: linux-4.14.61/include/net/ndisc.h +=================================================================== +--- linux-4.14.61.orig/include/net/ndisc.h ++++ linux-4.14.61/include/net/ndisc.h +@@ -89,7 +89,7 @@ struct ra_msg { + struct icmp6hdr icmph; + __be32 reachable_time; + __be32 retrans_timer; +-}; ++} __attribute__((packed, aligned(2))); + + struct rd_msg { + struct icmp6hdr icmph; +@@ -368,10 +368,10 @@ 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_noref(struct net_device *dev, const void *pkey) +Index: linux-4.14.61/net/sched/cls_u32.c +=================================================================== +--- linux-4.14.61.orig/net/sched/cls_u32.c ++++ linux-4.14.61/net/sched/cls_u32.c +@@ -165,7 +165,7 @@ 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 = rcu_dereference_bh(n->next); + goto next_knode; + } +@@ -218,8 +218,8 @@ 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; +Index: linux-4.14.61/net/ipv6/ip6_offload.c +=================================================================== +--- linux-4.14.61.orig/net/ipv6/ip6_offload.c ++++ linux-4.14.61/net/ipv6/ip6_offload.c +@@ -220,7 +220,7 @@ static struct sk_buff **ipv6_gro_receive + continue; + + iph2 = (struct ipv6hdr *)(p->data + off); +- 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. + * XXX skbs on the gro_list have all been parsed and pulled +Index: linux-4.14.61/include/net/addrconf.h +=================================================================== +--- linux-4.14.61.orig/include/net/addrconf.h ++++ linux-4.14.61/include/net/addrconf.h +@@ -47,7 +47,7 @@ struct prefix_info { + __be32 reserved2; + + struct in6_addr prefix; +-}; ++} __attribute__((packed, aligned(2))); + + #include <linux/netdevice.h> + #include <net/if_inet6.h> +Index: linux-4.14.61/include/net/inet_ecn.h +=================================================================== +--- linux-4.14.61.orig/include/net/inet_ecn.h ++++ linux-4.14.61/include/net/inet_ecn.h +@@ -125,9 +125,9 @@ static inline int IP6_ECN_set_ce(struct + if (INET_ECN_is_not_ect(ipv6_get_dsfield(iph))) + return 0; + +- from = *(__be32 *)iph; ++ from = net_hdr_word(iph); + to = from | htonl(INET_ECN_CE << 20); +- *(__be32 *)iph = to; ++ net_hdr_word(iph) = to; + if (skb->ip_summed == CHECKSUM_COMPLETE) + skb->csum = csum_add(csum_sub(skb->csum, (__force __wsum)from), + (__force __wsum)to); +@@ -136,7 +136,7 @@ static inline int IP6_ECN_set_ce(struct + + static inline void IP6_ECN_clear(struct ipv6hdr *iph) + { +- *(__be32*)iph &= ~htonl(INET_ECN_MASK << 20); ++ net_hdr_word(iph) &= ~htonl(INET_ECN_MASK << 20); + } + + static inline void ipv6_copy_dscp(unsigned int dscp, struct ipv6hdr *inner) +Index: linux-4.14.61/include/net/ipv6.h +=================================================================== +--- linux-4.14.61.orig/include/net/ipv6.h ++++ linux-4.14.61/include/net/ipv6.h +@@ -108,7 +108,7 @@ struct frag_hdr { + __u8 reserved; + __be16 frag_off; + __be32 identification; +-}; ++} __attribute__((packed, aligned(2))); + + #define IP6_MF 0x0001 + #define IP6_OFFSET 0xFFF8 +@@ -451,8 +451,8 @@ static inline void __ipv6_addr_set_half( + } + #endif + #endif +- addr[0] = wh; +- addr[1] = wl; ++ net_hdr_word(&addr[0]) = wh; ++ net_hdr_word(&addr[1]) = wl; + } + + static inline void ipv6_addr_set(struct in6_addr *addr, +@@ -511,6 +511,8 @@ static inline bool ipv6_prefix_equal(con + const __be32 *a1 = addr1->s6_addr32; + const __be32 *a2 = addr2->s6_addr32; + unsigned int pdw, pbi; ++ /* Used for last <32-bit fraction of prefix */ ++ u32 pbia1, pbia2; + + /* check complete u32 in prefix */ + pdw = prefixlen >> 5; +@@ -519,7 +521,9 @@ static inline bool ipv6_prefix_equal(con + + /* check incomplete u32 in prefix */ + pbi = prefixlen & 0x1f; +- if (pbi && ((a1[pdw] ^ a2[pdw]) & htonl((0xffffffff) << (32 - pbi)))) ++ pbia1 = net_hdr_word(&a1[pdw]); ++ pbia2 = net_hdr_word(&a2[pdw]); ++ if (pbi && ((pbia1 ^ pbia2) & htonl((0xffffffff) << (32 - pbi)))) + return false; + + return true; +@@ -663,13 +667,13 @@ static inline void ipv6_addr_set_v4mappe + */ + static inline int __ipv6_addr_diff32(const void *token1, const void *token2, int addrlen) + { +- const __be32 *a1 = token1, *a2 = token2; ++ const struct in6_addr *a1 = token1, *a2 = token2; + int i; + + addrlen >>= 2; + + for (i = 0; i < addrlen; i++) { +- __be32 xb = a1[i] ^ a2[i]; ++ __be32 xb = a1->s6_addr32[i] ^ a2->s6_addr32[i]; + if (xb) + return i * 32 + 31 - __fls(ntohl(xb)); + } +@@ -838,17 +842,18 @@ static inline int ip6_default_np_autolab + static inline void ip6_flow_hdr(struct ipv6hdr *hdr, unsigned int tclass, + __be32 flowlabel) + { +- *(__be32 *)hdr = htonl(0x60000000 | (tclass << 20)) | flowlabel; ++ net_hdr_word((__be32 *)hdr) = ++ htonl(0x60000000 | (tclass << 20)) | flowlabel; + } + + static inline __be32 ip6_flowinfo(const struct ipv6hdr *hdr) + { +- return *(__be32 *)hdr & IPV6_FLOWINFO_MASK; ++ return net_hdr_word((__be32 *)hdr) & IPV6_FLOWINFO_MASK; + } + + static inline __be32 ip6_flowlabel(const struct ipv6hdr *hdr) + { +- return *(__be32 *)hdr & IPV6_FLOWLABEL_MASK; ++ return net_hdr_word((__be32 *)hdr) & IPV6_FLOWLABEL_MASK; + } + + static inline u8 ip6_tclass(__be32 flowinfo) +Index: linux-4.14.61/include/net/secure_seq.h +=================================================================== +--- linux-4.14.61.orig/include/net/secure_seq.h ++++ linux-4.14.61/include/net/secure_seq.h +@@ -3,6 +3,7 @@ + #define _NET_SECURE_SEQ + + #include <linux/types.h> ++#include <linux/in6.h> + + u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport); + u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr, +Index: linux-4.14.61/include/uapi/linux/in.h +=================================================================== +--- linux-4.14.61.orig/include/uapi/linux/in.h ++++ linux-4.14.61/include/uapi/linux/in.h +@@ -84,7 +84,7 @@ enum { + /* Internet address. */ + struct in_addr { + __be32 s_addr; +-}; ++} __attribute__((packed, aligned(2))); + #endif + + #define IP_TOS 1 +Index: linux-4.14.61/net/ipv6/ip6_fib.c +=================================================================== +--- linux-4.14.61.orig/net/ipv6/ip6_fib.c ++++ linux-4.14.61/net/ipv6/ip6_fib.c +@@ -137,7 +137,7 @@ static __be32 addr_bit_set(const void *t + * See include/asm-generic/bitops/le.h. + */ + return (__force __be32)(1 << ((~fn_bit ^ BITOP_BE32_SWIZZLE) & 0x1f)) & +- addr[fn_bit >> 5]; ++ net_hdr_word(&addr[fn_bit >> 5]); + } + + static struct fib6_node *node_alloc(void) +Index: linux-4.14.61/net/netfilter/nf_conntrack_proto_tcp.c +=================================================================== +--- linux-4.14.61.orig/net/netfilter/nf_conntrack_proto_tcp.c ++++ linux-4.14.61/net/netfilter/nf_conntrack_proto_tcp.c +@@ -447,7 +447,7 @@ static void tcp_sack(const struct sk_buf + + /* Fast path for timestamp-only option */ + if (length == TCPOLEN_TSTAMP_ALIGNED +- && *(__be32 *)ptr == htonl((TCPOPT_NOP << 24) ++ && net_hdr_word(ptr) == htonl((TCPOPT_NOP << 24) + | (TCPOPT_NOP << 16) + | (TCPOPT_TIMESTAMP << 8) + | TCPOLEN_TIMESTAMP)) +Index: linux-4.14.61/net/xfrm/xfrm_input.c +=================================================================== +--- linux-4.14.61.orig/net/xfrm/xfrm_input.c ++++ linux-4.14.61/net/xfrm/xfrm_input.c +@@ -193,8 +193,8 @@ int xfrm_parse_spi(struct sk_buff *skb, + if (!pskb_may_pull(skb, hlen)) + return -EINVAL; + +- *spi = *(__be32 *)(skb_transport_header(skb) + offset); +- *seq = *(__be32 *)(skb_transport_header(skb) + offset_seq); ++ *spi = net_hdr_word(skb_transport_header(skb) + offset); ++ *seq = net_hdr_word(skb_transport_header(skb) + offset_seq); + return 0; + } + EXPORT_SYMBOL(xfrm_parse_spi); +Index: linux-4.14.61/net/ipv4/tcp_input.c +=================================================================== +--- linux-4.14.61.orig/net/ipv4/tcp_input.c ++++ linux-4.14.61/net/ipv4/tcp_input.c +@@ -3858,14 +3858,16 @@ 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; +- if (*ptr) +- tp->rx_opt.rcv_tsecr = ntohl(*ptr) - tp->tsoffset; ++ if (net_hdr_word(ptr)) ++ tp->rx_opt.rcv_tsecr = get_unaligned_be32(ptr) - ++ tp->tsoffset; + else + tp->rx_opt.rcv_tsecr = 0; + return true; +Index: linux-4.14.61/include/uapi/linux/if_pppox.h +=================================================================== +--- linux-4.14.61.orig/include/uapi/linux/if_pppox.h ++++ linux-4.14.61/include/uapi/linux/if_pppox.h +@@ -51,6 +51,7 @@ struct pppoe_addr { + */ + struct pptp_addr { + __u16 call_id; ++ __u16 pad; + struct in_addr sin_addr; + }; + +Index: linux-4.14.61/net/ipv6/netfilter/nf_log_ipv6.c +=================================================================== +--- linux-4.14.61.orig/net/ipv6/netfilter/nf_log_ipv6.c ++++ linux-4.14.61/net/ipv6/netfilter/nf_log_ipv6.c +@@ -66,9 +66,9 @@ static void dump_ipv6_packet(struct nf_l + /* Max length: 44 "LEN=65535 TC=255 HOPLIMIT=255 FLOWLBL=FFFFF " */ + nf_log_buf_add(m, "LEN=%zu TC=%u HOPLIMIT=%u FLOWLBL=%u ", + ntohs(ih->payload_len) + sizeof(struct ipv6hdr), +- (ntohl(*(__be32 *)ih) & 0x0ff00000) >> 20, ++ (ntohl(net_hdr_word(ih)) & 0x0ff00000) >> 20, + ih->hop_limit, +- (ntohl(*(__be32 *)ih) & 0x000fffff)); ++ (ntohl(net_hdr_word(ih)) & 0x000fffff)); + + fragment = 0; + ptr = ip6hoff + sizeof(struct ipv6hdr); +Index: linux-4.14.61/include/net/neighbour.h +=================================================================== +--- linux-4.14.61.orig/include/net/neighbour.h ++++ linux-4.14.61/include/net/neighbour.h +@@ -265,8 +265,10 @@ static inline bool neigh_key_eq128(const + const u32 *n32 = (const u32 *)n->primary_key; + const u32 *p32 = pkey; + +- return ((n32[0] ^ p32[0]) | (n32[1] ^ p32[1]) | +- (n32[2] ^ p32[2]) | (n32[3] ^ p32[3])) == 0; ++ return ((n32[0] ^ net_hdr_word(&p32[0])) | ++ (n32[1] ^ net_hdr_word(&p32[1])) | ++ (n32[2] ^ net_hdr_word(&p32[2])) | ++ (n32[3] ^ net_hdr_word(&p32[3]))) == 0; + } + + static inline struct neighbour *___neigh_lookup_noref( +Index: linux-4.14.61/include/uapi/linux/netfilter_arp/arp_tables.h +=================================================================== +--- linux-4.14.61.orig/include/uapi/linux/netfilter_arp/arp_tables.h ++++ linux-4.14.61/include/uapi/linux/netfilter_arp/arp_tables.h +@@ -70,7 +70,7 @@ struct arpt_arp { + __u8 flags; + /* Inverse flags */ + __u16 invflags; +-}; ++} __attribute__((aligned(4))); + + /* Values for "flag" field in struct arpt_ip (general arp structure). + * No flags defined yet. +Index: linux-4.14.61/net/core/utils.c +=================================================================== +--- linux-4.14.61.orig/net/core/utils.c ++++ linux-4.14.61/net/core/utils.c +@@ -424,8 +424,14 @@ void inet_proto_csum_replace16(__sum16 * + bool pseudohdr) + { + __be32 diff[] = { +- ~from[0], ~from[1], ~from[2], ~from[3], +- to[0], to[1], to[2], to[3], ++ ~net_hdr_word(&from[0]), ++ ~net_hdr_word(&from[1]), ++ ~net_hdr_word(&from[2]), ++ ~net_hdr_word(&from[3]), ++ net_hdr_word(&to[0]), ++ net_hdr_word(&to[1]), ++ net_hdr_word(&to[2]), ++ net_hdr_word(&to[3]), + }; + if (skb->ip_summed != CHECKSUM_PARTIAL) { + *sum = csum_fold(csum_partial(diff, sizeof(diff), +Index: linux-4.14.61/drivers/net/vxlan.c +=================================================================== +--- linux-4.14.61.orig/drivers/net/vxlan.c ++++ linux-4.14.61/drivers/net/vxlan.c +@@ -1857,15 +1857,15 @@ static int vxlan_build_skb(struct sk_buf + return err; + + vxh = __skb_push(skb, sizeof(*vxh)); +- vxh->vx_flags = VXLAN_HF_VNI; +- vxh->vx_vni = vxlan_vni_field(vni); ++ net_hdr_word(&vxh->vx_flags) = VXLAN_HF_VNI; ++ net_hdr_word(&vxh->vx_vni) = vxlan_vni_field(vni); + + if (type & SKB_GSO_TUNNEL_REMCSUM) { + unsigned int start; + + start = skb_checksum_start_offset(skb) - sizeof(struct vxlanhdr); +- vxh->vx_vni |= vxlan_compute_rco(start, skb->csum_offset); +- vxh->vx_flags |= VXLAN_HF_RCO; ++ net_hdr_word(&vxh->vx_vni) |= vxlan_compute_rco(start, skb->csum_offset); ++ net_hdr_word(&vxh->vx_flags) |= VXLAN_HF_RCO; + + if (!skb_is_gso(skb)) { + skb->ip_summed = CHECKSUM_NONE; +Index: linux-4.14.61/include/linux/etherdevice.h +=================================================================== +--- linux-4.14.61.orig/include/linux/etherdevice.h ++++ linux-4.14.61/include/linux/etherdevice.h +@@ -480,7 +480,7 @@ static inline bool is_etherdev_addr(cons + * @b: Pointer to Ethernet header + * + * Compare two Ethernet headers, returns 0 if equal. +- * This assumes that the network header (i.e., IP header) is 4-byte ++ * This assumes that the network header (i.e., IP header) is 2-byte + * aligned OR the platform can handle unaligned access. This is the + * case for all packets coming into netif_receive_skb or similar + * entry points. +@@ -503,11 +503,12 @@ static inline unsigned long compare_ethe + fold |= *(unsigned long *)(a + 6) ^ *(unsigned long *)(b + 6); + return fold; + #else +- u32 *a32 = (u32 *)((u8 *)a + 2); +- u32 *b32 = (u32 *)((u8 *)b + 2); ++ const u16 *a16 = a; ++ const u16 *b16 = b; + +- return (*(u16 *)a ^ *(u16 *)b) | (a32[0] ^ b32[0]) | +- (a32[1] ^ b32[1]) | (a32[2] ^ b32[2]); ++ return (a16[0] ^ b16[0]) | (a16[1] ^ b16[1]) | (a16[2] ^ b16[2]) | ++ (a16[3] ^ b16[3]) | (a16[4] ^ b16[4]) | (a16[5] ^ b16[5]) | ++ (a16[6] ^ b16[6]); + #endif + } + +Index: linux-4.14.61/net/ipv4/tcp_offload.c +=================================================================== +--- linux-4.14.61.orig/net/ipv4/tcp_offload.c ++++ linux-4.14.61/net/ipv4/tcp_offload.c +@@ -226,7 +226,7 @@ struct sk_buff **tcp_gro_receive(struct + + th2 = tcp_hdr(p); + +- if (*(u32 *)&th->source ^ *(u32 *)&th2->source) { ++ if (net_hdr_word(&th->source) ^ net_hdr_word(&th2->source)) { + NAPI_GRO_CB(p)->same_flow = 0; + continue; + } +@@ -244,8 +244,8 @@ found: + ~(TCP_FLAG_CWR | TCP_FLAG_FIN | TCP_FLAG_PSH)); + flush |= (__force int)(th->ack_seq ^ th2->ack_seq); + for (i = sizeof(*th); i < thlen; i += 4) +- flush |= *(u32 *)((u8 *)th + i) ^ +- *(u32 *)((u8 *)th2 + i); ++ flush |= net_hdr_word((u8 *)th + i) ^ ++ net_hdr_word((u8 *)th2 + i); + + /* When we receive our second frame we can made a decision on if we + * continue this flow as an atomic flow with a fixed ID or if we use +Index: linux-4.14.61/net/ipv6/netfilter/ip6table_mangle.c +=================================================================== +--- linux-4.14.61.orig/net/ipv6/netfilter/ip6table_mangle.c ++++ linux-4.14.61/net/ipv6/netfilter/ip6table_mangle.c +@@ -50,7 +50,7 @@ ip6t_mangle_out(struct sk_buff *skb, con + hop_limit = ipv6_hdr(skb)->hop_limit; + + /* flowlabel and prio (includes version, which shouldn't change either */ +- flowlabel = *((u_int32_t *)ipv6_hdr(skb)); ++ flowlabel = net_hdr_word(ipv6_hdr(skb)); + + ret = ip6t_do_table(skb, state, state->net->ipv6.ip6table_mangle); + +@@ -59,7 +59,7 @@ ip6t_mangle_out(struct sk_buff *skb, con + !ipv6_addr_equal(&ipv6_hdr(skb)->daddr, &daddr) || + skb->mark != mark || + ipv6_hdr(skb)->hop_limit != hop_limit || +- flowlabel != *((u_int32_t *)ipv6_hdr(skb)))) { ++ flowlabel != net_hdr_word(ipv6_hdr(skb)))) { + err = ip6_route_me_harder(state->net, skb); + if (err < 0) + ret = NF_DROP_ERR(err); |