Johan/Greg, Since CUPS uses libusb to communicate with printers these days (well, for over a decade now) so that printing and scanning can coexist, the usblp driver really doesn't get any usage anymore. > On Jan 4, 2021, at 10:11 AM, Johan Hovold <johan@xxxxxxxxxx> wrote: > > On Mon, Jan 04, 2021 at 03:59:02PM +0100, Greg Kroah-Hartman wrote: >> On Mon, Jan 04, 2021 at 03:53:02PM +0100, Johan Hovold wrote: >>> Stack-allocated buffers cannot be used for DMA (on all architectures). >>> >>> Replace the HP-channel macro with a helper function that allocates a >>> dedicated transfer buffer so that it can continue to be used with >>> arguments from the stack. > >> Wow, no one uses this driver anymore it seems, this should have >> triggered a runtime warning on newer kernels :( > > This helper is only used by the IOCNR_HP_SET_CHANNEL ioctl so perhaps > it's just that one which isn't used much. > > Johan > ________________________ Michael Sweet
