On Fri, 2016-07-22 at 09:59 -0400, Alan Stern wrote: > On Fri, 22 Jul 2016, Oliver Neukum wrote: > > > It is always possible to go back to the usb_device if you know > > the interface. It is unnecessary to store the device and thus should > > not be done. > > That is not a hard-and-fast law -- the kernel isn't based on Codd's > rules for relational databases. This patch eliminates one pointer from > one data structure, while adding 8 extra nontrivial computations to the > code. The end result is not obviously an improvement. OK, let's drop it. But it seems to me that something is wrong with our APIs if you always need the parent device although the driver is intended for a leaf interface. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
