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authorFrederic Weisbecker2009-10-18 01:09:09 +0200
committerFrederic Weisbecker2009-10-18 01:12:33 +0200
commit0f8f86c7bdd1c954fbe153af437a0d91a6c5721a (patch)
tree94a8d419a470a4f9852ca397bb9bbe48db92ff5c /include/linux/pnp.h
parentMerge branch 'linus' into tracing/hw-breakpoints (diff)
parentperf tools: Move dereference after NULL test (diff)
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Merge commit 'perf/core' into perf/hw-breakpoint
Conflicts: kernel/Makefile kernel/trace/Makefile kernel/trace/trace.h samples/Makefile Merge reason: We need to be uptodate with the perf events development branch because we plan to rewrite the breakpoints API on top of perf events.
Diffstat (limited to 'include/linux/pnp.h')
-rw-r--r--include/linux/pnp.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index b063c7328ba5..fddfafaed024 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -360,6 +360,7 @@ struct pnp_driver {
unsigned int flags;
int (*probe) (struct pnp_dev *dev, const struct pnp_device_id *dev_id);
void (*remove) (struct pnp_dev *dev);
+ void (*shutdown) (struct pnp_dev *dev);
int (*suspend) (struct pnp_dev *dev, pm_message_t state);
int (*resume) (struct pnp_dev *dev);
struct device_driver driver;
an class="hl ppc">#include <linux/ppp_defs.h> #include <linux/if_ppp.h> #include <linux/ppp_channel.h> #include <linux/kmod.h> #include <net/sock.h> #include <asm/uaccess.h> static struct pppox_proto *pppox_protos[PX_MAX_PROTO + 1]; int register_pppox_proto(int proto_num, struct pppox_proto *pp) { if (proto_num < 0 || proto_num > PX_MAX_PROTO) return -EINVAL; if (pppox_protos[proto_num]) return -EALREADY; pppox_protos[proto_num] = pp; return 0; } void unregister_pppox_proto(int proto_num) { if (proto_num >= 0 && proto_num <= PX_MAX_PROTO) pppox_protos[proto_num] = NULL; } void pppox_unbind_sock(struct sock *sk) { /* Clear connection to ppp device, if attached. */ if (sk->sk_state & (PPPOX_BOUND | PPPOX_CONNECTED | PPPOX_ZOMBIE)) { ppp_unregister_channel(&pppox_sk(sk)->chan); sk->sk_state = PPPOX_DEAD; } } EXPORT_SYMBOL(register_pppox_proto); EXPORT_SYMBOL(unregister_pppox_proto); EXPORT_SYMBOL(pppox_unbind_sock); int pppox_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) { struct sock *sk = sock->sk; struct pppox_sock *po = pppox_sk(sk); int rc; lock_sock(sk); switch (cmd) { case PPPIOCGCHAN: { int index; rc = -ENOTCONN; if (!(sk->sk_state & PPPOX_CONNECTED)) break; rc = -EINVAL; index = ppp_channel_index(&po->chan); if (put_user(index , (int __user *) arg)) break; rc = 0; sk->sk_state |= PPPOX_BOUND; break; } default: rc = pppox_protos[sk->sk_protocol]->ioctl ? pppox_protos[sk->sk_protocol]->ioctl(sock, cmd, arg) : -ENOTTY; } release_sock(sk); return rc; } EXPORT_SYMBOL(pppox_ioctl); static int pppox_create(struct net *net, struct socket *sock, int protocol, int kern) { int rc = -EPROTOTYPE; if (protocol < 0 || protocol > PX_MAX_PROTO) goto out; rc = -EPROTONOSUPPORT; if (!pppox_protos[protocol]) request_module("pppox-proto-%d", protocol); if (!pppox_protos[protocol] || !try_module_get(pppox_protos[protocol]->owner)) goto out; rc = pppox_protos[protocol]->create(net, sock); module_put(pppox_protos[protocol]->owner); out: return rc; } static const struct net_proto_family pppox_proto_family = { .family = PF_PPPOX, .create = pppox_create, .owner = THIS_MODULE, }; static int __init pppox_init(void) { return sock_register(&pppox_proto_family); } static void __exit pppox_exit(void) { sock_unregister(PF_PPPOX); } module_init(pppox_init); module_exit(pppox_exit); MODULE_AUTHOR("Michal Ostrowski <mostrows@speakeasy.net>"); MODULE_DESCRIPTION("PPP over Ethernet driver (generic socket layer)"); MODULE_LICENSE("GPL");