diff options
Diffstat (limited to 'include/net/dsfield.h')
| -rw-r--r-- | include/net/dsfield.h | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/include/net/dsfield.h b/include/net/dsfield.h index eb65bf2e250..e1ad903a8d6 100644 --- a/include/net/dsfield.h +++ b/include/net/dsfield.h @@ -12,15 +12,15 @@ #include <asm/byteorder.h> -static inline __u8 ipv4_get_dsfield(struct iphdr *iph) +static inline __u8 ipv4_get_dsfield(const struct iphdr *iph) { return iph->tos; } -static inline __u8 ipv6_get_dsfield(struct ipv6hdr *ipv6h) +static inline __u8 ipv6_get_dsfield(const struct ipv6hdr *ipv6h) { - return ntohs(*(__be16 *) ipv6h) >> 4; + return ntohs(*(const __be16 *)ipv6h) >> 4; } @@ -43,11 +43,9 @@ static inline void ipv4_change_dsfield(struct iphdr *iph,__u8 mask, static inline void ipv6_change_dsfield(struct ipv6hdr *ipv6h,__u8 mask, __u8 value) { - __u16 tmp; + __be16 *p = (__force __be16 *)ipv6h; - tmp = ntohs(*(__be16 *) ipv6h); - tmp = (tmp & ((mask << 4) | 0xf00f)) | (value << 4); - *(__be16 *) ipv6h = htons(tmp); + *p = (*p & htons((((u16)mask << 4) | 0xf00f))) | htons((u16)value << 4); } |