On Monday 20 June 2011 20:39:02 Alan Stern wrote: > On Mon, 20 Jun 2011, Alexander Holler wrote: > > > I see it that way: packed is needed to be sure that at least for struct > > ehci_regs there are no padding bytes inbetween the members. > > But is it really needed? No. When the structure is marked packed, it's broken because it relies on undefined behavior. If it's not packed, there is no problem. > > It might > > work without, but that depends on the compiler (-version, architecture, > > whatever). > > Have there ever been any combinations of compiler, version, > architecture, whatever, that had unwanted padding bytes in this > structure? Only on compilers that are not able to build Linux kernels anyway. Arnd -- 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
