Ingo Molnar wrote:
...
ieee1394 reuses the skb infrastructure of the networking code,
and uses two skb-head queues: ->pending_packet_queue and
hpsbpkt_queue. The latter is used in the usual fashion: processed
from a kernel thread. The other one, ->pending_packet_queue is also
processed from hardirq context (f.e. in hpsb_bus_reset()), which is
not what the networking code usually does (which completes from
softirq or process context). This locking assymetry can be totally
correct if done carefully, but it can also be dangerous if
networking helper functions are reused, which could assume
traditional networking use.
...
The pending_packet_queue is only accessed from within
drivers/ieee1394/ieee1394_core.c, and only via net/core/skbuff.c's
access functions for queueing/ dequeueing/ queuewalking. Or am I missing
something?
--
Stefan Richter
-=====-=-==- -==- -=---
http://arcgraph.de/sr/
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