diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-27 10:34:19 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-27 10:34:19 -0300 |
commit | 1c29f4306f557ef5d9ed515ec8881f4d1735b058 (patch) | |
tree | 1359b9f8403af67e35bbbaae36e2b60c9bb3d2da /net/core/dev.c | |
parent | 5b465b045af3a649a89b8a5c5bfdece20ffc0345 (diff) |
Linux-libre 4.7.5-gnupck-4.7.5-gnu
Diffstat (limited to 'net/core/dev.c')
-rw-r--r-- | net/core/dev.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 904ff431d..97fb3da50 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3979,6 +3979,22 @@ sch_handle_ingress(struct sk_buff *skb, struct packet_type **pt_prev, int *ret, } /** + * netdev_is_rx_handler_busy - check if receive handler is registered + * @dev: device to check + * + * Check if a receive handler is already registered for a given device. + * Return true if there one. + * + * The caller must hold the rtnl_mutex. + */ +bool netdev_is_rx_handler_busy(struct net_device *dev) +{ + ASSERT_RTNL(); + return dev && rtnl_dereference(dev->rx_handler); +} +EXPORT_SYMBOL_GPL(netdev_is_rx_handler_busy); + +/** * netdev_rx_handler_register - register receive handler * @dev: device to register a handler for * @rx_handler: receive handler to register |