On Fri, 2011-06-03 at 18:35 -0300, Aloisio Almeida wrote: > On Fri, Jun 3, 2011 at 5:38 PM, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote: > > On Fri, 2011-06-03 at 17:18 -0300, Lauro Ramos Venancio wrote: > >> We don't need a generation counter here because we have the events > >> NFC_EVENT_DEVICE_ADDED and NFC_EVENT_DEVICE_REMOVED. So, it is > >> possible to keep the device list consistency listening for these > >> events. > > > > That may be true, but it complicates coding in userspace. Much easier to > > check a generation counter (in both cases) to see if data is consistent > > than to listen to multiple events concurrently with receiving a dump. > > The userspace must listen to these events anyway. In addition, the > application needs to get the list of devices only once (on its > initialization). > > In the target list case, the userspace application would have to > orderly call start_poll before receive the dump in order to create the > "invalid list" situation. I think you're considering only the current applications, and new ones might be developed, but whatever, I'll let it rest since I don't particularly care anyway. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
