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snap: use const for descriptor

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Protocols should be able to use constant value for the descriptor.
Minor whitespace cleanup as well

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2009-03-20 05:43:14 +00:00 committed by David S. Miller
parent 65689fef7e
commit 7ca98fa234
2 changed files with 8 additions and 4 deletions
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6
include/net/psnap.h
View file

@ -1,7 +1,11 @@
#ifndef _NET_PSNAP_H
#define _NET_PSNAP_H
extern struct datalink_proto *register_snap_client(unsigned char *desc, int (*rcvfunc)(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *orig_dev));
extern struct datalink_proto *
register_snap_client(const unsigned char *desc,
int (*rcvfunc)(struct sk_buff *, struct net_device *,
struct packet_type *,
struct net_device *orig_dev));
extern void unregister_snap_client(struct datalink_proto *proto);
#endif

6
net/802/psnap.c
View file

@ -29,7 +29,7 @@ static struct llc_sap *snap_sap;
/*
* Find a snap client by matching the 5 bytes.
*/
static struct datalink_proto *find_snap_client(unsigned char *desc)
static struct datalink_proto *find_snap_client(const unsigned char *desc)
{
struct datalink_proto *proto = NULL, *p;
@ -122,7 +122,7 @@ module_exit(snap_exit);
/*
* Register SNAP clients. We don't yet use this for IP.
*/
struct datalink_proto *register_snap_client(unsigned char *desc,
struct datalink_proto *register_snap_client(const unsigned char *desc,
int (*rcvfunc)(struct sk_buff *,
struct net_device *,
struct packet_type *,
@ -137,7 +137,7 @@ struct datalink_proto *register_snap_client(unsigned char *desc,
proto = kmalloc(sizeof(*proto), GFP_ATOMIC);
if (proto) {
memcpy(proto->type, desc,5);
memcpy(proto->type, desc, 5);
proto->rcvfunc = rcvfunc;
proto->header_length = 5 + 3; /* snap + 802.2 */
proto->request = snap_request;