On 10/10/2010 01:16 AM, Johannes Berg wrote:
On Sun, 2010-10-10 at 10:09 +0200, Johannes Berg wrote:The commit failed to take into account that allocated wireless devices (wiphys) are not added into the device list upon allocation, but only when they are registered. Therefore, it opened up a race between allocating and registering a name, so that if two processes allocate and register concurrently ("alloc, alloc, register, register" rather than "alloc, register, alloc, register") the code will attempt to use the same name twice.And as for the actual feature, as far as I'm concerned the discussion ends here because we otherwise need to use something as complex as idr. A udev rule can't break the kernel and works just as well, even if you'll have to use a different namespace, i.e. not "phy%d" -- use say "wiphy%d" instead.
Sorry about that. If anyone has any example udev magic to do this sort of thing, I'd like to try that out. Thanks, Ben
johannes
-- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com -- 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
