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authorLin Zhang <xiaolou4617@gmail.com>2017-10-06 01:40:35 +0800
committerDavid S. Miller <davem@davemloft.net>2017-10-07 23:15:08 +0100
commit548ec114705bb8f0879a0da12abec17f17a7cc26 (patch)
tree2109c7f34d7bea667c3a0540470dbf644016e0bd /net/phonet/af_phonet.c
parentnet: phonet: mark header_ops as const (diff)
downloadlinux-dev-548ec114705bb8f0879a0da12abec17f17a7cc26.tar.xz
linux-dev-548ec114705bb8f0879a0da12abec17f17a7cc26.zip
net: phonet: mark phonet_protocol as const
The phonet_protocol structs don't need to be written by anyone and so can be marked as const. Signed-off-by: Lin Zhang <xiaolou4617@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/phonet/af_phonet.c')
-rw-r--r--net/phonet/af_phonet.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
index b12142e55d19..3b0ef691f5b1 100644
--- a/net/phonet/af_phonet.c
+++ b/net/phonet/af_phonet.c
@@ -35,11 +35,11 @@
#include <net/phonet/pn_dev.h>
/* Transport protocol registration */
-static struct phonet_protocol *proto_tab[PHONET_NPROTO] __read_mostly;
+static const struct phonet_protocol *proto_tab[PHONET_NPROTO] __read_mostly;
-static struct phonet_protocol *phonet_proto_get(unsigned int protocol)
+static const struct phonet_protocol *phonet_proto_get(unsigned int protocol)
{
- struct phonet_protocol *pp;
+ const struct phonet_protocol *pp;
if (protocol >= PHONET_NPROTO)
return NULL;
@@ -53,7 +53,7 @@ static struct phonet_protocol *phonet_proto_get(unsigned int protocol)
return pp;
}
-static inline void phonet_proto_put(struct phonet_protocol *pp)
+static inline void phonet_proto_put(const struct phonet_protocol *pp)
{
module_put(pp->prot->owner);
}
@@ -65,7 +65,7 @@ static int pn_socket_create(struct net *net, struct socket *sock, int protocol,
{
struct sock *sk;
struct pn_sock *pn;
- struct phonet_protocol *pnp;
+ const struct phonet_protocol *pnp;
int err;
if (!capable(CAP_SYS_ADMIN))
@@ -470,7 +470,7 @@ static struct packet_type phonet_packet_type __read_mostly = {
static DEFINE_MUTEX(proto_tab_lock);
int __init_or_module phonet_proto_register(unsigned int protocol,
- struct phonet_protocol *pp)
+ const struct phonet_protocol *pp)
{
int err = 0;
@@ -492,7 +492,8 @@ int __init_or_module phonet_proto_register(unsigned int protocol,
}
EXPORT_SYMBOL(phonet_proto_register);
-void phonet_proto_unregister(unsigned int protocol, struct phonet_protocol *pp)
+void phonet_proto_unregister(unsigned int protocol,
+ const struct phonet_protocol *pp)
{
mutex_lock(&proto_tab_lock);
BUG_ON(proto_tab[protocol] != pp);