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-rw-r--r--net/packet/af_packet.c31
1 files changed, 4 insertions, 27 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 02e401c..99b55e6 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -86,20 +86,6 @@
#define CONFIG_SOCK_PACKET 1
/*
- Proposed replacement for SIOC{ADD,DEL}MULTI and
- IFF_PROMISC, IFF_ALLMULTI flags.
-
- It is more expensive, but I believe,
- it is really correct solution: reentereble, safe and fault tolerant.
-
- IFF_PROMISC/IFF_ALLMULTI/SIOC{ADD/DEL}MULTI are faked by keeping
- reference count and global flag, so that real status is
- (gflag|(count != 0)), so that we can use obsolete faulty interface
- not harming clever users.
- */
-#define CONFIG_PACKET_MULTICAST 1
-
-/*
Assumptions:
- if device has no dev->hard_header routine, it adds and removes ll header
inside itself. In this case ll header is invisible outside of device,
@@ -159,7 +145,6 @@ static atomic_t packet_socks_nr;
/* Private packet socket structures. */
-#ifdef CONFIG_PACKET_MULTICAST
struct packet_mclist
{
struct packet_mclist *next;
@@ -179,7 +164,7 @@ struct packet_mreq_max
unsigned short mr_alen;
unsigned char mr_address[MAX_ADDR_LEN];
};
-#endif
+
#ifdef CONFIG_PACKET_MMAP
static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing);
#endif
@@ -205,9 +190,7 @@ struct packet_sock {
origdev:1;
int ifindex; /* bound device */
__be16 num;
-#ifdef CONFIG_PACKET_MULTICAST
struct packet_mclist *mclist;
-#endif
#ifdef CONFIG_PACKET_MMAP
atomic_t mapped;
unsigned int pg_vec_order;
@@ -851,9 +834,7 @@ static int packet_release(struct socket *sock)
__sock_put(sk);
}
-#ifdef CONFIG_PACKET_MULTICAST
packet_flush_mclist(sk);
-#endif
#ifdef CONFIG_PACKET_MMAP
if (po->pg_vec) {
@@ -1221,7 +1202,6 @@ static int packet_getname(struct socket *sock, struct sockaddr *uaddr,
return 0;
}
-#ifdef CONFIG_PACKET_MULTICAST
static void packet_dev_mc(struct net_device *dev, struct packet_mclist *i, int what)
{
switch (i->type) {
@@ -1349,7 +1329,6 @@ static void packet_flush_mclist(struct sock *sk)
}
rtnl_unlock();
}
-#endif
static int
packet_setsockopt(struct socket *sock, int level, int optname, char __user *optval, int optlen)
@@ -1362,7 +1341,6 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
return -ENOPROTOOPT;
switch(optname) {
-#ifdef CONFIG_PACKET_MULTICAST
case PACKET_ADD_MEMBERSHIP:
case PACKET_DROP_MEMBERSHIP:
{
@@ -1383,7 +1361,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
ret = packet_mc_drop(sk, &mreq);
return ret;
}
-#endif
+
#ifdef CONFIG_PACKET_MMAP
case PACKET_RX_RING:
{
@@ -1506,11 +1484,10 @@ static int packet_notifier(struct notifier_block *this, unsigned long msg, void
switch (msg) {
case NETDEV_UNREGISTER:
-#ifdef CONFIG_PACKET_MULTICAST
if (po->mclist)
packet_dev_mclist(dev, po->mclist, -1);
- // fallthrough
-#endif
+ /* fallthrough */
+
case NETDEV_DOWN:
if (dev->ifindex == po->ifindex) {
spin_lock(&po->bind_lock);
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