On Thu, 15 Oct 2020 23:00:23 +0300 Ioana Ciornei wrote: > The below compile time error can be seen when PHYLIB is configured as a > module. > > ld: drivers/net/pcs/pcs-xpcs.o: in function `xpcs_read': > pcs-xpcs.c:(.text+0x29): undefined reference to `mdiobus_read' > ld: drivers/net/pcs/pcs-xpcs.o: in function `xpcs_soft_reset.constprop.7': > pcs-xpcs.c:(.text+0x80): undefined reference to `mdiobus_write' > ld: drivers/net/pcs/pcs-xpcs.o: in function `xpcs_config_aneg': > pcs-xpcs.c:(.text+0x318): undefined reference to `mdiobus_write' > ld: pcs-xpcs.c:(.text+0x38e): undefined reference to `mdiobus_write' > ld: pcs-xpcs.c:(.text+0x3eb): undefined reference to `mdiobus_write' > ld: pcs-xpcs.c:(.text+0x437): undefined reference to `mdiobus_write' > ld: drivers/net/pcs/pcs-xpcs.o:pcs-xpcs.c:(.text+0xb1e): more undefined references to `mdiobus_write' follow > > PHYLIB being a module leads to MDIO_BUS being a module as well while the > XPCS is still built-in. What should happen in this configuration is that > PCS_XPCS should be forced to build as module. However, that select only > acts in the opposite way so we should turn it into a depends. > > Fix this up by explicitly depending on MDIO_BUS. > > Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> > Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> # build-tested > Fixes: 2fa4e4b799e1 ("net: pcs: Move XPCS into new PCS subdirectory") > Signed-off-by: Ioana Ciornei <ioana.ciornei@xxxxxxx> Applied, thanks!