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authorBart Van Assche <bart.vanassche@wdc.com>2017-10-11 20:48:43 +0300
committerDoug Ledford <dledford@redhat.com>2017-10-15 03:47:05 +0300
commit1c3aea2bc8f0b2e5b57375ead40457ff75a3a2ec (patch)
tree5c8c0c0c9d9a5aff2c4dc223f1c6ddafce7751e7 /include/rdma/ib_addr.h
parent166245dd92dd86f1e830508c0a4a9eeeed9b3ad6 (diff)
downloadlinux-1c3aea2bc8f0b2e5b57375ead40457ff75a3a2ec.tar.xz
IB/core: Fix endianness annotation in rdma_is_multicast_addr()
Since ipv4_addr is a big endian 32-bit number, annotate it as such. Fixes: commit be1d325a3358 ("IB/core: Set RoCEv2 MGID according to spec") Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma/ib_addr.h')
-rw-r--r--include/rdma/ib_addr.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h
index ec5008cf5d51..cfa82d16573d 100644
--- a/include/rdma/ib_addr.h
+++ b/include/rdma/ib_addr.h
@@ -305,12 +305,12 @@ static inline void rdma_get_ll_mac(struct in6_addr *addr, u8 *mac)
static inline int rdma_is_multicast_addr(struct in6_addr *addr)
{
- u32 ipv4_addr;
+ __be32 ipv4_addr;
if (addr->s6_addr[0] == 0xff)
return 1;
- memcpy(&ipv4_addr, addr->s6_addr + 12, 4);
+ ipv4_addr = addr->s6_addr32[3];
return (ipv6_addr_v4mapped(addr) && ipv4_is_multicast(ipv4_addr));
}