On Mon, 25 Jun 2007, Greg KH wrote: > You mean something like the following, but also for bulk and int? I > like it, it reduces the number of allocations and frees we have to do as > the transfer buffer will get freed automatically with the urb, when it > is. > > What do people think?
> + urb = kzalloc(sizeof(*urb) + size, mem_flags); > + if (!urb) > + return NULL; > + buffer = ((unsigned char *)(urb) + size); This is no good. The buffer has to be located in its own cache line; it can't be combined with another data structure like the URB. They must be allocated separately. Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
