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igmp: fix new sparse errors

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Fix following sparse errors :

net/ipv4/igmp.c:1222:25: warning: cast from restricted __be32
net/ipv4/igmp.c🔢31: warning: incorrect type in assignment (different address spaces)
net/ipv4/igmp.c🔢31:    expected struct ip_mc_list [noderef] <asn:4>*next_hash
net/ipv4/igmp.c🔢31:    got struct ip_mc_list *<noident>
net/ipv4/igmp.c:1250:31: warning: incorrect type in assignment (different address spaces)
net/ipv4/igmp.c:1250:31:    expected struct ip_mc_list [noderef] <asn:4>*next_hash
net/ipv4/igmp.c:1250:31:    got struct ip_mc_list *<noident>
net/ipv4/igmp.c:2380:37: warning: cast from restricted __be32

These were added by commit e989707135
("igmp: hash a hash table to speedup ip_check_mc_rcu()")

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2013-06-12 14:11:16 -07:00 committed by David S. Miller
parent 5eaedf3131
commit c70eba7453
1 changed files with 4 additions and 4 deletions
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8
net/ipv4/igmp.c
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@ -1219,7 +1219,7 @@ static void igmp_group_added(struct ip_mc_list *im)
static u32 ip_mc_hash(const struct ip_mc_list *im)
{
return hash_32((u32)im->multiaddr, MC_HASH_SZ_LOG);
return hash_32((__force u32)im->multiaddr, MC_HASH_SZ_LOG);
}
static void ip_mc_hash_add(struct in_device *in_dev,
@ -1231,7 +1231,7 @@ static void ip_mc_hash_add(struct in_device *in_dev,
mc_hash = rtnl_dereference(in_dev->mc_hash);
if (mc_hash) {
hash = ip_mc_hash(im);
im->next_hash = rtnl_dereference(mc_hash[hash]);
im->next_hash = mc_hash[hash];
rcu_assign_pointer(mc_hash[hash], im);
return;
}
@ -1247,7 +1247,7 @@ static void ip_mc_hash_add(struct in_device *in_dev,
for_each_pmc_rtnl(in_dev, im) {
hash = ip_mc_hash(im);
im->next_hash = rtnl_dereference(mc_hash[hash]);
im->next_hash = mc_hash[hash];
RCU_INIT_POINTER(mc_hash[hash], im);
}
@ -2377,7 +2377,7 @@ int ip_check_mc_rcu(struct in_device *in_dev, __be32 mc_addr, __be32 src_addr, u
mc_hash = rcu_dereference(in_dev->mc_hash);
if (mc_hash) {
u32 hash = hash_32((u32)mc_addr, MC_HASH_SZ_LOG);
u32 hash = hash_32((__force u32)mc_addr, MC_HASH_SZ_LOG);
for (im = rcu_dereference(mc_hash[hash]);
im != NULL;