From: Hannes Frederic Sowa Date: Tue, 24 Mar 2015 10:05:28 +0000 (+0100) Subject: ipv6: fix sparse warnings in privacy stable addresses generation X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ff40217e73fd137daae0113ed71b218128913037;p=openwrt%2Fstaging%2Fblogic.git ipv6: fix sparse warnings in privacy stable addresses generation Those warnings reported by sparse endianness check (via kbuild test robot) are harmless, nevertheless fix them up and make the code a little bit easier to read. Reported-by: kbuild test robot Fixes: 622c81d57b392cc ("ipv6: generation of stable privacy addresses for link-local and autoconf") Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller --- diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index d2d238334a11..2660263e1131 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -2906,7 +2906,7 @@ static int ipv6_generate_stable_address(struct in6_addr *address, char __data[SHA_MESSAGE_BYTES]; struct { struct in6_addr secret; - __be64 prefix; + __be32 prefix[2]; unsigned char hwaddr[MAX_ADDR_LEN]; u8 dad_count; } __packed; @@ -2932,16 +2932,16 @@ retry: memset(&data, 0, sizeof(data)); memset(workspace, 0, sizeof(workspace)); memcpy(data.hwaddr, idev->dev->perm_addr, idev->dev->addr_len); - data.prefix = ((__be64)address->s6_addr32[0] << 32) | - (__be64)address->s6_addr32[1]; + data.prefix[0] = address->s6_addr32[0]; + data.prefix[1] = address->s6_addr32[1]; data.secret = secret; data.dad_count = dad_count; sha_transform(digest, data.__data, workspace); temp = *address; - temp.s6_addr32[2] = digest[0]; - temp.s6_addr32[3] = digest[1]; + temp.s6_addr32[2] = (__force __be32)digest[0]; + temp.s6_addr32[3] = (__force __be32)digest[1]; spin_unlock_bh(&lock);