netdev - Re: [PATCH net-next 3/5] net/sched: taprio: fix build without 64bit div

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Date:   Wed, 17 Apr 2019 15:32:26 -0700
From:   Vinicius Costa Gomes <vinicius.gomes@...el.com>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>, davem@...emloft.net
Cc:     netdev@...r.kernel.org, oss-drivers@...ronome.com,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Dirk van der Merwe <dirk.vandermerwe@...ronome.com>,
        Leandro Dorileo <leandro.maciel.dorileo@...el.com>
Subject: Re: [PATCH net-next 3/5] net/sched: taprio: fix build without 64bit div

Hi,

Jakub Kicinski <jakub.kicinski@...ronome.com> writes:

> Recent changes to taprio did not use the correct div64 helpers,
> leading to:
>
> net/sched/sch_taprio.o: In function `taprio_dequeue':
> sch_taprio.c:(.text+0x34a): undefined reference to `__divdi3'
> net/sched/sch_taprio.o: In function `advance_sched':
> sch_taprio.c:(.text+0xa0b): undefined reference to `__divdi3'
> net/sched/sch_taprio.o: In function `taprio_init':
> sch_taprio.c:(.text+0x1450): undefined reference to `__divdi3'
> /home/jkicinski/devel/linux/Makefile:1032: recipe for target 'vmlinux' failed
>
> Use math64 helpers.
>
> Fixes: 7b9eba7ba0c1 ("net/sched: taprio: fix picos_per_byte miscalculation")
> Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@...ronome.com>
> ---

Acked-by: Vinicius Costa Gomes <vinicius.gomes@...el.com>


Cheers,
--
Vinicius