diff options
author | Michael Chan <mchan@broadcom.com> | 2011-06-08 19:29:35 +0000 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-07 13:47:02 -0800 |
commit | 9801de0d61b6ddaa713da9fd6dc7fbd113d89fad (patch) | |
tree | 72de05d36804203ebb4ee10aa18143c009974a2e /drivers | |
parent | d5893723e57f33454ece7ab473a3352f6913af19 (diff) |
cnic: Improve NETDEV_UP event handling
commit db1d350fcb156b58f66a67680617077bcacfe6fc upstream.
During NETDEV_UP, we use symbol_get() to get the net driver's cnic
probe function. This sometimes doesn't work if NETDEV_UP happens
right after NETDEV_REGISTER and the net driver is still running module
init code. As a result, the cnic device may not be discovered. We
fix this by probing on all NETDEV events if the device's netif_running
state is up.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/cnic.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c index 4332b3a2fafb..cd43fbb7bfaf 100644 --- a/drivers/net/cnic.c +++ b/drivers/net/cnic.c @@ -4520,7 +4520,7 @@ static int cnic_netdev_event(struct notifier_block *this, unsigned long event, dev = cnic_from_netdev(netdev); - if (!dev && (event == NETDEV_REGISTER || event == NETDEV_UP)) { + if (!dev && (event == NETDEV_REGISTER || netif_running(netdev))) { /* Check for the hot-plug device */ dev = is_cnic_dev(netdev); if (dev) { @@ -4536,7 +4536,7 @@ static int cnic_netdev_event(struct notifier_block *this, unsigned long event, else if (event == NETDEV_UNREGISTER) cnic_ulp_exit(dev); - if (event == NETDEV_UP) { + if (event == NETDEV_UP || (new_dev && netif_running(netdev))) { if (cnic_register_netdev(dev) != 0) { cnic_put(dev); goto done; |