[NET]: sparse warning fixes
Fix a bunch of sparse warnings. Mostly about 0 used as
NULL pointer, and shadowed variable declarations.
One notable case was that hash size should have been unsigned.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index d407992..5810852 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -414,7 +414,7 @@
break;
read_unlock_bh(&idev->lock);
in6_dev_put(idev);
- return aca != 0;
+ return aca != NULL;
}
return 0;
}
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index eb330a4..532425d 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -663,7 +663,7 @@
break;
}
gsf = kmalloc(optlen,GFP_KERNEL);
- if (gsf == 0) {
+ if (!gsf) {
retv = -ENOBUFS;
break;
}
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 8668ab3..cc8d4e2 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1407,7 +1407,7 @@
/* we assume size > sizeof(ra) here */
skb = sock_alloc_send_skb(sk, size + LL_RESERVED_SPACE(dev), 1, &err);
- if (skb == 0)
+ if (!skb)
return NULL;
skb_reserve(skb, LL_RESERVED_SPACE(dev));
@@ -2144,7 +2144,7 @@
/* callers have the socket lock and a write lock on ipv6_sk_mc_lock,
* so no other readers or writers of iml or its sflist
*/
- if (iml->sflist == 0) {
+ if (!iml->sflist) {
/* any-source empty exclude case */
return ip6_mc_del_src(idev, &iml->addr, iml->sfmode, 0, NULL, 0);
}
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index b761dbe..d4acd28 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -256,7 +256,7 @@
break;
case ND_OPT_PREFIX_INFO:
ndopts->nd_opts_pi_end = nd_opt;
- if (ndopts->nd_opt_array[nd_opt->nd_opt_type] == 0)
+ if (!ndopts->nd_opt_array[nd_opt->nd_opt_type])
ndopts->nd_opt_array[nd_opt->nd_opt_type] = nd_opt;
break;
#ifdef CONFIG_IPV6_ROUTE_INFO
