On Thu, 2015-12-17 at 10:20 +0100, Janusz Dziedzic wrote: > HW/driver should set NEED_ALIGNED4_SKBS flag in case require > aligned skbs to four-byte boundaries. > > Before we have to do memmove() in the driver before > pass this to HW and memmove() back in tx completion. > This patch allow to save CPU and skip such memmoves.
Can you quantify that btw? It shouldn't be that expensive since it's all in the cache for read, so just has to be written out to RAM before the DMA can happen... And on status it will be pulled into the cache anyway, and you don't even need the write to happen before you can continue. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
