diff options
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hnae3.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hnae3.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.c b/drivers/net/ethernet/hisilicon/hns3/hnae3.c index 9a63fbc69408..b25fb400f476 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.c +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.c @@ -40,6 +40,21 @@ EXPORT_SYMBOL(hnae3_unregister_ae_algo_prepare); */ static DEFINE_MUTEX(hnae3_common_lock); +/* ensure the drivers being unloaded one by one */ +static DEFINE_MUTEX(hnae3_unload_lock); + +void hnae3_acquire_unload_lock(void) +{ + mutex_lock(&hnae3_unload_lock); +} +EXPORT_SYMBOL(hnae3_acquire_unload_lock); + +void hnae3_release_unload_lock(void) +{ + mutex_unlock(&hnae3_unload_lock); +} +EXPORT_SYMBOL(hnae3_release_unload_lock); + static bool hnae3_client_match(enum hnae3_client_type client_type) { if (client_type == HNAE3_CLIENT_KNIC || |