diff options
| -rw-r--r-- | target/linux/ar71xx/patches-3.7/902-unaligned_access_hacks.patch | 171 |
1 files changed, 151 insertions, 20 deletions
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 index 4ce2d22ee..8806d866a 100644 --- a/target/linux/ar71xx/patches-3.7/902-unaligned_access_hacks.patch +++ b/target/linux/ar71xx/patches-3.7/902-unaligned_access_hacks.patch @@ -42,6 +42,76 @@ } 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 { @@ -97,15 +167,7 @@ #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 -@@ -14,6 +14,7 @@ - #include <linux/skbuff.h> - #include <linux/icmp.h> - #include <linux/sysctl.h> -+#include <linux/unaligned/packed_struct.h> - #include <net/route.h> - #include <net/ip.h> - -@@ -39,8 +40,8 @@ static bool ipv4_pkt_to_tuple(const stru +@@ -39,8 +39,8 @@ static bool ipv4_pkt_to_tuple(const stru if (ap == NULL) return false; @@ -189,15 +251,7 @@ if (nlen != skb_network_header_len(p) || --- a/net/ipv6/route.c +++ b/net/ipv6/route.c -@@ -59,6 +59,7 @@ - #include <net/netlink.h> - - #include <asm/uaccess.h> -+#include <asm/unaligned.h> - - #ifdef CONFIG_SYSCTL - #include <linux/sysctl.h> -@@ -938,7 +939,7 @@ void ip6_route_input(struct sk_buff *skb +@@ -938,7 +938,7 @@ void ip6_route_input(struct sk_buff *skb .flowi6_iif = skb->dev->ifindex, .daddr = iph->daddr, .saddr = iph->saddr, @@ -206,7 +260,7 @@ .flowi6_mark = skb->mark, .flowi6_proto = iph->nexthdr, }; -@@ -1108,7 +1109,7 @@ void ip6_update_pmtu(struct sk_buff *skb +@@ -1108,7 +1108,7 @@ void ip6_update_pmtu(struct sk_buff *skb fl6.flowi6_flags = 0; fl6.daddr = iph->daddr; fl6.saddr = iph->saddr; @@ -215,7 +269,7 @@ dst = ip6_route_output(net, NULL, &fl6); if (!dst->error) -@@ -1136,7 +1137,7 @@ void ip6_redirect(struct sk_buff *skb, s +@@ -1136,7 +1136,7 @@ void ip6_redirect(struct sk_buff *skb, s fl6.flowi6_flags = 0; fl6.daddr = iph->daddr; fl6.saddr = iph->saddr; @@ -632,3 +686,80 @@ 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) |