diff options
Diffstat (limited to 'net/phonet/af_phonet.c')
| -rw-r--r-- | net/phonet/af_phonet.c | 52 |
1 files changed, 24 insertions, 28 deletions
diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c index 7ab30f668b5..9d211f12582 100644 --- a/net/phonet/af_phonet.c +++ b/net/phonet/af_phonet.c | |||
| @@ -33,9 +33,30 @@ | |||
| 33 | #include <net/phonet/phonet.h> | 33 | #include <net/phonet/phonet.h> |
| 34 | #include <net/phonet/pn_dev.h> | 34 | #include <net/phonet/pn_dev.h> |
| 35 | 35 | ||
| 36 | static struct net_proto_family phonet_proto_family; | 36 | /* Transport protocol registration */ |
| 37 | static struct phonet_protocol *phonet_proto_get(int protocol); | 37 | static struct phonet_protocol *proto_tab[PHONET_NPROTO] __read_mostly; |
| 38 | static inline void phonet_proto_put(struct phonet_protocol *pp); | 38 | static DEFINE_SPINLOCK(proto_tab_lock); |
| 39 | |||
| 40 | static struct phonet_protocol *phonet_proto_get(int protocol) | ||
| 41 | { | ||
| 42 | struct phonet_protocol *pp; | ||
| 43 | |||
| 44 | if (protocol >= PHONET_NPROTO) | ||
| 45 | return NULL; | ||
| 46 | |||
| 47 | spin_lock(&proto_tab_lock); | ||
| 48 | pp = proto_tab[protocol]; | ||
| 49 | if (pp && !try_module_get(pp->prot->owner)) | ||
| 50 | pp = NULL; | ||
| 51 | spin_unlock(&proto_tab_lock); | ||
| 52 | |||
| 53 | return pp; | ||
| 54 | } | ||
| 55 | |||
| 56 | static inline void phonet_proto_put(struct phonet_protocol *pp) | ||
| 57 | { | ||
| 58 | module_put(pp->prot->owner); | ||
| 59 | } | ||
| 39 | 60 | ||
| 40 | /* protocol family functions */ | 61 | /* protocol family functions */ |
| 41 | 62 | ||
| @@ -375,10 +396,6 @@ static struct packet_type phonet_packet_type = { | |||
| 375 | .func = phonet_rcv, | 396 | .func = phonet_rcv, |
| 376 | }; | 397 | }; |
| 377 | 398 | ||
| 378 | /* Transport protocol registration */ | ||
| 379 | static struct phonet_protocol *proto_tab[PHONET_NPROTO] __read_mostly; | ||
| 380 | static DEFINE_SPINLOCK(proto_tab_lock); | ||
| 381 | |||
| 382 | int __init_or_module phonet_proto_register(int protocol, | 399 | int __init_or_module phonet_proto_register(int protocol, |
| 383 | struct phonet_protocol *pp) | 400 | struct phonet_protocol *pp) |
| 384 | { | 401 | { |
| @@ -412,27 +429,6 @@ void phonet_proto_unregister(int protocol, struct phonet_protocol *pp) | |||
| 412 | } | 429 | } |
| 413 | EXPORT_SYMBOL(phonet_proto_unregister); | 430 | EXPORT_SYMBOL(phonet_proto_unregister); |
| 414 | 431 | ||
| 415 | static struct phonet_protocol *phonet_proto_get(int protocol) | ||
| 416 | { | ||
| 417 | struct phonet_protocol *pp; | ||
| 418 | |||
| 419 | if (protocol >= PHONET_NPROTO) | ||
| 420 | return NULL; | ||
| 421 | |||
| 422 | spin_lock(&proto_tab_lock); | ||
| 423 | pp = proto_tab[protocol]; | ||
| 424 | if (pp && !try_module_get(pp->prot->owner)) | ||
| 425 | pp = NULL; | ||
| 426 | spin_unlock(&proto_tab_lock); | ||
| 427 | |||
| 428 | return pp; | ||
| 429 | } | ||
| 430 | |||
| 431 | static inline void phonet_proto_put(struct phonet_protocol *pp) | ||
| 432 | { | ||
| 433 | module_put(pp->prot->owner); | ||
| 434 | } | ||
| 435 | |||
| 436 | /* Module registration */ | 432 | /* Module registration */ |
| 437 | static int __init phonet_init(void) | 433 | static int __init phonet_init(void) |
| 438 | { | 434 | { |
