ar71xx: fix a double dereference in the unaligned access patch

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 44885

target/linux/ar71xx/patches-3.18/902-unaligned_access_hacks.patch

@@ -869,12 +869,12 @@
  
 --- a/net/ipv6/netfilter/nf_log_ipv6.c
 +++ b/net/ipv6/netfilter/nf_log_ipv6.c
-@@ -63,9 +63,10 @@ static void dump_ipv6_packet(struct nf_l
+@@ -63,9 +63,9 @@ 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,
- 	       (ntohl(*(__be32 *)ih) & 0x0ff00000) >> 20,
  	       ih->hop_limit,
 -	       (ntohl(*(__be32 *)ih) & 0x000fffff));
 +	       (ntohl(net_hdr_word(ih)) & 0x000fffff));