linux-kernel - Re: [PATCH] module: Allow DEFAULT_SYMBOL_NAMESPACE be set after export.h included

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Message-ID: <202412291114.MzNzqKpo-lkp@intel.com>
Date: Sun, 29 Dec 2024 11:32:58 +0800
From: kernel test robot <lkp@...el.com>
To: David Laight <david.laight.linux@...il.com>, andi.shyti@...nel.org,
	andriy.shevchenko@...ux.intel.com, masahiroy@...nel.org,
	u.kleine-koenig@...libre.com, torvalds@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev
Subject: Re: [PATCH] module: Allow DEFAULT_SYMBOL_NAMESPACE be set after
 export.h included

Hi David,

kernel test robot noticed the following build warnings:

[auto build test WARNING on andi-shyti/i2c/i2c-host]
[also build test WARNING on linus/master v6.13-rc4 next-20241220]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/David-Laight/module-Allow-DEFAULT_SYMBOL_NAMESPACE-be-set-after-export-h-included/20241229-024441
base:   https://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git i2c/i2c-host
patch link:    https://lore.kernel.org/r/20241228184328.5ced280b%40dsl-u17-10
patch subject: [PATCH] module: Allow DEFAULT_SYMBOL_NAMESPACE be set after export.h included
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20241229/202412291114.MzNzqKpo-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241229/202412291114.MzNzqKpo-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412291114.MzNzqKpo-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/pwm/pwm-lpss.c:22:9: warning: 'DEFAULT_SYMBOL_NAMESPACE' macro redefined [-Wmacro-redefined]
      22 | #define DEFAULT_SYMBOL_NAMESPACE "PWM_LPSS"
         |         ^
   include/linux/export.h:63:9: note: previous definition is here
      63 | #define DEFAULT_SYMBOL_NAMESPACE ""
         |         ^
   1 warning generated.


vim +/DEFAULT_SYMBOL_NAMESPACE +22 drivers/pwm/pwm-lpss.c

093e00bb3f82f3 Alan Cox        2014-04-18  21  
ceb8bf2ceaa77f Masahiro Yamada 2024-12-03 @22  #define DEFAULT_SYMBOL_NAMESPACE "PWM_LPSS"
a3682d2fe3c36c Andy Shevchenko 2022-09-27  23  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki