On Wed, Oct 26, 2011 at 11:59, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote: > On 10/23/2011 8:21 AM, Arik Nemtsov wrote: >> >> Some cards can generate CCMP IVs in HW, but require the space for the IV >> to be pre-allocated in the frame at the correct offset. Add a key flag >> that allows us to achieve this. > > Is it really that expensive to generate the IV and then not use it that this > is worth the extra complexity? This not just makes it more complex but also > more expensive in the other case. > Some of the platforms with this chip are pretty weak (host CPU is the bottleneck). We add another "if" for the other case (for a value that's likely in the cacheline already). I don't think that's too bad. Arik -- 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
