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

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Message-ID: <201606301404.EoyOs9Sz%fengguang.wu@intel.com>
Date:	Thu, 30 Jun 2016 14:03:52 +0800
From:	kbuild test robot <lkp@...el.com>
To:	John Crispin <john@...ozen.org>
Cc:	kbuild-all@...org, "David S. Miller" <davem@...emloft.net>,
	Felix Fietkau <nbd@....name>, Sean Wang <keyhaede@...il.com>,
	netdev@...r.kernel.org, linux-mediatek@...ts.infradead.org,
	linux-kernel@...r.kernel.org, John Crispin <john@...ozen.org>
Subject: Re: [PATCH V2 2/4] net-next: mediatek: don't use intermediate
 variables to store IRQ masks

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@...nwrt.org>
:::::: CC: David S. Miller <davem@...emloft.net>

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