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| author | Jiri Benc <jbenc@redhat.com> | 2016-03-21 19:39:18 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-21 20:30:02 +0300 |
| commit | 5692d7ea4183b8dd5a49d73d6a4436aa22929b7b (patch) | |
| tree | 6bb984ea0f48325d72a53b7de1e8698aa73eb7e5 /include | |
| parent | ed49e650371008b0e00c8004cc2ca93055740f78 (diff) | |
| download | linux-5692d7ea4183b8dd5a49d73d6a4436aa22929b7b.tar.xz | |
vxlan: fix sparse warnings
Sparse reports false positives for the header manipulation inlines. Annotate
them correctly.
Tested by sparse on a little endian and big endian machine.
Fixes: 54bfd872bf16d ("vxlan: keep flags and vni in network byte order")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/vxlan.h | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/include/net/vxlan.h b/include/net/vxlan.h index a763c96ecde4..73ed2e951c02 100644 --- a/include/net/vxlan.h +++ b/include/net/vxlan.h @@ -271,36 +271,36 @@ static inline struct vxlanhdr *vxlan_hdr(struct sk_buff *skb) static inline __be32 vxlan_vni(__be32 vni_field) { #if defined(__BIG_ENDIAN) - return vni_field >> 8; + return (__force __be32)((__force u32)vni_field >> 8); #else - return (vni_field & VXLAN_VNI_MASK) << 8; + return (__force __be32)((__force u32)(vni_field & VXLAN_VNI_MASK) << 8); #endif } static inline __be32 vxlan_vni_field(__be32 vni) { #if defined(__BIG_ENDIAN) - return vni << 8; + return (__force __be32)((__force u32)vni << 8); #else - return vni >> 8; + return (__force __be32)((__force u32)vni >> 8); #endif } static inline __be32 vxlan_tun_id_to_vni(__be64 tun_id) { #if defined(__BIG_ENDIAN) - return tun_id; + return (__force __be32)tun_id; #else - return tun_id >> 32; + return (__force __be32)((__force u64)tun_id >> 32); #endif } static inline __be64 vxlan_vni_to_tun_id(__be32 vni) { #if defined(__BIG_ENDIAN) - return (__be64)vni; + return (__force __be64)vni; #else - return (__be64)vni << 32; + return (__force __be64)((u64)(__force u32)vni << 32); #endif } |