Re: [PATCH V2 2/4] net-next: mediatek: don't use intermediate variables to store IRQ masks

From: John Crispin
Date: Thu Jun 30 2016 - 03:33:45 EST




On 30/06/2016 08:03, kbuild test robot wrote:
> Hi,
>
> [auto build test ERROR on net/master]
> [also build test ERROR on v4.7-rc5 next-20160629]
> [cannot apply to net-next/master]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
> url: https://github.com/0day-ci/linux/commits/John-Crispin/net-next-mediatek-IRQ-cleanups-fixes-and-grouping/20160629-194341
> config: arm-allmodconfig (attached as .config)
> compiler: arm-linux-gnueabi-gcc (Debian 5.3.1-8) 5.3.1 20160205
> reproduce:
> wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # save the attached .config to linux build tree
> make.cross ARCH=arm
>
> Note: the linux-review/John-Crispin/net-next-mediatek-IRQ-cleanups-fixes-and-grouping/20160629-194341 HEAD e8462c612b33003fba7c1a70328c7fb7872d8507 builds fine.
> It only hurts bisectibility.
>
> All errors (new ones prefixed by >>):
>
> drivers/net/ethernet/mediatek/mtk_eth_soc.c: In function 'mtk_poll':
>>> drivers/net/ethernet/mediatek/mtk_eth_soc.c:1003:16: error: 'tx_intr' undeclared (first use in this function)
> if (status & (tx_intr | rx_intr))
> ^
> drivers/net/ethernet/mediatek/mtk_eth_soc.c:1003:16: note: each undeclared identifier is reported only once for each function it appears in
>>> drivers/net/ethernet/mediatek/mtk_eth_soc.c:1003:26: error: 'rx_intr' undeclared (first use in this function)
> if (status & (tx_intr | rx_intr))
> ^
>
> vim +/tx_intr +1003 drivers/net/ethernet/mediatek/mtk_eth_soc.c
>
> 656e7052 John Crispin 2016-03-08 997 }
> 656e7052 John Crispin 2016-03-08 998
> 656e7052 John Crispin 2016-03-08 999 if (tx_again || rx_done == budget)
> 656e7052 John Crispin 2016-03-08 1000 return budget;
> 656e7052 John Crispin 2016-03-08 1001
> 656e7052 John Crispin 2016-03-08 1002 status = mtk_r32(eth, MTK_QMTK_INT_STATUS);
> 656e7052 John Crispin 2016-03-08 @1003 if (status & (tx_intr | rx_intr))
> 656e7052 John Crispin 2016-03-08 1004 return budget;
> 656e7052 John Crispin 2016-03-08 1005
> 656e7052 John Crispin 2016-03-08 1006 napi_complete(napi);
>
> :::::: The code at line 1003 was first introduced by commit
> :::::: 656e705243fd0c2864b89634ea16ed444ef64dc6 net-next: mediatek: add support for MT7623 ethernet
>
> :::::: TO: John Crispin <blogic@xxxxxxxxxxx>
> :::::: CC: David S. Miller <davem@xxxxxxxxxxxxx>
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation

Hi,

This series depends on a previous series currently sitting in net.git
starting with
commit 562c5a70400c ("net: mediatek: only wake the queue if it is stopped")
up to
commit 82c6544dddc6 ("net: mediatek: remove superfluous queue wake up
call")

i just double checked and with the series applied this compile error is gone

John