On Fri, 2023-05-19 at 15:17 +0200, Niklas Schnelle wrote: > On Thu, 2023-05-18 at 21:26 -0400, William Breathitt Gray wrote: > > On Tue, May 16, 2023 at 01:00:01PM +0200, Niklas Schnelle wrote: > > > In a future patch HAS_IOPORT=n will result in inb()/outb() and friends > > > not being declared. We thus need to add HAS_IOPORT as dependency for > > > those drivers using them. > > > > > > Co-developed-by: Arnd Bergmann <arnd@xxxxxxxxxx> > > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxxxx> > > > Signed-off-by: Niklas Schnelle <schnelle@xxxxxxxxxxxxx> > > > > Hi Niklas, > > > > The change itself is fine, but please update the description to reflect > > that this is adding a depends on HAS_IOPORT_MAP rather than HAS_IOPORT, > > along with the reason why it's needed (i.e. devm_ioport_map() is used). > > > > Thanks, > > > > William Breathitt Gray > > > > > > Right, this clearly needs adjustment. I went with the following commit > message for v5: > > "counter: add HAS_IOPORT_MAP dependency > > The 104_QUAD_8 counter driver uses devm_ioport_map() without depending > on HAS_IOPORT_MAP. This causes compilation to fail on platforms such as > s390 which do not support I/O port mapping. Add the missing > HAS_IOPORT_MAP dependency to fix this." > Just noticed this isn't entirely correct. As devm_ioport_map() has an empty stub for HAS_IOPORT_MAP=n this doesn't lead to a compile error it just doesn't work. Will reword to "This causes the driver to not be useable on platforms ..."
