drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c: stmmac_mdio.c:(.text+0xe74): undefined reference to `lynx_pcs_destroy'

[Naresh Kamboju]

Following build failed on Linux next arc,

Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>

Regressions found on arc:

 - build/gcc-9-vdk_hs38_smp_defconfig
 - build/gcc-9-axs103_defconfig

arc-elf32-ld: drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.o: in
function `stmmac_mdio_unregister':
stmmac_mdio.c:(.text+0xe74): undefined reference to `lynx_pcs_destroy'
arc-elf32-ld: stmmac_mdio.c:(.text+0xe74): undefined reference to
`lynx_pcs_destroy'
make[2]: *** [/builds/linux/scripts/Makefile.vmlinux:35: vmlinux] Error 1


Build log:
========
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230606/testrun/17346877/suite/build/test/gcc-9-axs103_defconfig/history/
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230606/testrun/17346877/suite/build/test/gcc-9-axs103_defconfig/log


--
Linaro LKFT
https://lkft.linaro.org