diff options
| -rw-r--r-- | arch/um/drivers/net_kern.c | 9 | ||||
| -rw-r--r-- | arch/um/include/net_kern.h | 8 |
2 files changed, 9 insertions, 8 deletions
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c index 07e839e387d..b10154cc46b 100644 --- a/arch/um/drivers/net_kern.c +++ b/arch/um/drivers/net_kern.c @@ -498,10 +498,8 @@ struct eth_init { int index; }; -/* Filled in at boot time. Will need locking if the transports become - * modular. - */ -struct list_head transports = LIST_HEAD_INIT(transports); +static DEFINE_SPINLOCK(transports_lock); +static LIST_HEAD(transports); /* Filled in during early boot */ struct list_head eth_cmd_line = LIST_HEAD_INIT(eth_cmd_line); @@ -540,7 +538,10 @@ void register_transport(struct transport *new) char *mac = NULL; int match; + spin_lock(&transports_lock); + BUG_ON(!list_empty(&new->list)); list_add(&new->list, &transports); + spin_unlock(&transports_lock); list_for_each_safe(ele, next, ð_cmd_line){ eth = list_entry(ele, struct eth_init, list); diff --git a/arch/um/include/net_kern.h b/arch/um/include/net_kern.h index 218f8b47fdc..92f76d82a6e 100644 --- a/arch/um/include/net_kern.h +++ b/arch/um/include/net_kern.h @@ -52,12 +52,12 @@ struct net_kern_info { struct transport { struct list_head list; - char *name; - int (*setup)(char *, char **, void *); + const char *name; + int (* const setup)(char *, char **, void *); const struct net_user_info *user; const struct net_kern_info *kern; - int private_size; - int setup_size; + const int private_size; + const int setup_size; }; extern struct net_device *ether_init(int); |