[NETFILTER]: nf_conntrack_sane: annotate SANE helper with const
Annotate nf_conntrack_sane variables with const qualifier and remove
a few casts.
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/nf_conntrack_sane.c b/net/netfilter/nf_conntrack_sane.c
index b5a16c6..a70051d 100644
--- a/net/netfilter/nf_conntrack_sane.c
+++ b/net/netfilter/nf_conntrack_sane.c
@@ -62,8 +62,9 @@
enum ip_conntrack_info ctinfo)
{
unsigned int dataoff, datalen;
- struct tcphdr _tcph, *th;
- char *sb_ptr;
+ const struct tcphdr *th;
+ struct tcphdr _tcph;
+ void *sb_ptr;
int ret = NF_ACCEPT;
int dir = CTINFO2DIR(ctinfo);
struct nf_ct_sane_master *ct_sane_info;
@@ -99,7 +100,7 @@
if (datalen != sizeof(struct sane_request))
goto out;
- req = (struct sane_request *)sb_ptr;
+ req = sb_ptr;
if (req->RPC_code != htonl(SANE_NET_START)) {
/* Not an interesting command */
ct_sane_info->state = SANE_STATE_NORMAL;
@@ -123,7 +124,7 @@
goto out;
}
- reply = (struct sane_reply_net_start *)sb_ptr;
+ reply = sb_ptr;
if (reply->status != htonl(SANE_STATUS_SUCCESS)) {
/* saned refused the command */
pr_debug("nf_ct_sane: unsuccessful SANE_STATUS = %u\n",