From: Stephen Rothwell <redacted>
Date: Thu, 16 Jan 2020 18:53:37 +1100

After merging the net-next tree, today's linux-next build (sparc
defconfig) failed like this:

ERROR: "__umoddi3" [net/core/pktgen.ko] undefined!

Caused by commit

  7786a1af2a6b ("pktgen: Allow configuration of IPv6 source address range")

I have reverted that commit for today.

Niu Xilei, you must fix this or else I will have to revert your pktgen
changes.

You cannot do direct division or modulus on 64-bit integer values,
instead you must use the various div*() helper macros so that it works
on all 32-bit systems too.

Thank you.