linux-kernel - Re: drivers/reset/reset-intel-gw.c:18:9: warning: 'REG

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Message-ID: <20200615152727.GA11811@nuc8i5>
Date:   Mon, 15 Jun 2020 23:27:27 +0800
From:   Dejin Zheng <zhengdejin5@...il.com>
To:     kernel test robot <lkp@...el.com>
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: Re: drivers/reset/reset-intel-gw.c:18:9: warning: 'REG_OFFSET' macro
 redefined

On Mon, Jun 15, 2020 at 10:33:12PM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   b3a9e3b9622ae10064826dccb4f7a52bd88c7407
> commit: e44ab4e14d6f4c448ae555132090c1a116b19e5c regmap: Simplify implementation of the regmap_read_poll_timeout() macro
> date:   8 weeks ago
> config: arm-randconfig-r022-20200615 (attached as .config)
> compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 3d8149c2a1228609fd7d7c91a04681304a2f0ca9)
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # install arm cross compiling tool for clang build
>         # apt-get install binutils-arm-linux-gnueabi
>         git checkout e44ab4e14d6f4c448ae555132090c1a116b19e5c
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
>
Hi

I sent a patch to fix it, and now the patch is currently under review.
https://lkml.org/lkml/2020/6/4/606

BR,
Dejin

> All warnings (new ones prefixed by >>, old ones prefixed by <<):
> 
> >> drivers/reset/reset-intel-gw.c:18:9: warning: 'REG_OFFSET' macro redefined [-Wmacro-redefined]
> #define REG_OFFSET      GENMASK(31, 16)
> ^
> arch/arm/mach-ixp4xx/include/mach/platform.h:25:9: note: previous definition is here
> #define REG_OFFSET      3
> ^
> 1 warning generated.
> 
> vim +/REG_OFFSET +18 drivers/reset/reset-intel-gw.c
> 
> c9aef213e38cde Dilip Kota 2020-01-03  17  
> c9aef213e38cde Dilip Kota 2020-01-03 @18  #define REG_OFFSET	GENMASK(31, 16)
> c9aef213e38cde Dilip Kota 2020-01-03  19  #define BIT_OFFSET	GENMASK(15, 8)
> c9aef213e38cde Dilip Kota 2020-01-03  20  #define STAT_BIT_OFFSET	GENMASK(7, 0)
> c9aef213e38cde Dilip Kota 2020-01-03  21  
> 
> :::::: The code at line 18 was first introduced by commit
> :::::: c9aef213e38cde27d4689a5cbe25a7c1b1db9fad reset: intel: Add system reset controller driver
> 
> :::::: TO: Dilip Kota <eswara.kota@...ux.intel.com>
> :::::: CC: Philipp Zabel <p.zabel@...gutronix.de>
> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org