netdev - Re: [PATCH net-next v5 5/7] taprio: Add support for txtime-assist mode

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Date:   Sun, 23 Jun 2019 11:29:57 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Vedang Patel <vedang.patel@...el.com>
Cc:     kbuild-all@...org, netdev@...r.kernel.org,
        jeffrey.t.kirsher@...el.com, davem@...emloft.net, jhs@...atatu.com,
        xiyou.wangcong@...il.com, jiri@...nulli.us,
        intel-wired-lan@...ts.osuosl.org, vinicius.gomes@...el.com,
        l@...ileo.org, jakub.kicinski@...ronome.com, m-karicheri2@...com,
        sergei.shtylyov@...entembedded.com, eric.dumazet@...il.com,
        aaron.f.brown@...el.com, Vedang Patel <vedang.patel@...el.com>
Subject: Re: [PATCH net-next v5 5/7] taprio: Add support for txtime-assist
 mode

Hi Vedang,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Vedang-Patel/net-sched-Add-txtime-assist-support-for-taprio/20190622-192248
config: i386-randconfig-h1-06230338 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   ld: net/sched/sch_taprio.o: in function `length_to_duration':
>> net/sched/sch_taprio.c:154: undefined reference to `__divdi3'
>> ld: net/sched/sch_taprio.c:154: undefined reference to `__divdi3'
>> ld: net/sched/sch_taprio.c:154: undefined reference to `__divdi3'

vim +154 net/sched/sch_taprio.c

   151	
   152	static int length_to_duration(struct taprio_sched *q, int len)
   153	{
 > 154		return (len * atomic64_read(&q->picos_per_byte)) / 1000;
   155	}
   156	

---
0-DAY kernel test infrastructure                Open Source Technology Center
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