netdev - Re: linux-next: build failure after merge of the net-next tree

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Date:   Mon, 20 Jan 2020 10:03:45 +0100 (CET)
From:   David Miller <davem@...emloft.net>
To:     sfr@...b.auug.org.au
Cc:     netdev@...r.kernel.org, linux-next@...r.kernel.org,
        linux-kernel@...r.kernel.org, niu_xilei@....com
Subject: Re: linux-next: build failure after merge of the net-next tree

From: Stephen Rothwell <sfr@...b.auug.org.au>
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.