igmp: fix new sparse errors
Fix following sparse errors :
net/ipv4/igmp.c:1222:25: warning: cast from restricted __be32
net/ipv4/igmp.c:1234:31: warning: incorrect type in assignment (different address spaces)
net/ipv4/igmp.c:1234:31: expected struct ip_mc_list [noderef] <asn:4>*next_hash
net/ipv4/igmp.c:1234:31: 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 e9897071350bd9
("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>
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index a09190d..cd71190 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1219,7 +1219,7 @@
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 @@
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 @@
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 @@
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;