33085cb309
Networking: The network device list was protected by a re-entrant semaphore. With the recent change to support network device callback, the network stack needs to access the network device list too. Some drivers, however, run the network stack from the interrupt level -- this is bad but a fact in the current state. Of course,those drivers are unable to take the semaphore and will assert.
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The solution here is to eliminate the device devices semaphore altogether. This eliminates netdev_semtake() and netdev_semgive() and replaces them with net_lock() and net_unlock() which have larger scope as needed for this purpose.
2015-05-31 08:34:03 -06:00
6687e156e6
Revamp last change. IFF_UP only required when allocating callback, not freeing.
2015-05-30 21:13:58 -06:00
28b46c7bfa
To be valid, a network device must not only exist, but be in the UP state
2015-05-30 12:54:18 -06:00
fa8b7c19b7
Forgot to add a file in the last commit
2015-05-29 11:03:02 -06:00
Gregory Nutt