MIPS: net: mscc: ocelot: undefined reference to `packing'

The mips defconfig build failed on today's Linux next 20210217 tag.

make --silent --keep-going --jobs=8
O=/home/tuxbuild/.cache/tuxmake/builds/1/tmp ARCH=mips
CROSS_COMPILE=mips-linux-gnu- 'CC=sccache mips-linux-gnu-gcc'
'HOSTCC=sccache gcc' uImage.gz

mips-linux-gnu-ld: drivers/net/ethernet/mscc/ocelot.o: in function
`ocelot_xtr_poll_frame':
drivers/net/ethernet/mscc/ocelot.c:(.text+0x1c08): undefined reference
to `packing'

Reported-by: Naresh Kamboju <redacted>

build link,
https://builds.tuxbuild.com/1obrU4klh0OkIctHBFbxIwHO0Gd/build.log

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https://lkft.linaro.org