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Re: [PATCH] lib80211: Use ERR_CAST() to return

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Hi Rohit,

kernel test robot noticed the following build warnings:

[auto build test WARNING on wireless-next/main]
[also build test WARNING on wireless/main linus/master v6.11-rc6 next-20240906]
[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/Rohit-Chavan/lib80211-Use-ERR_CAST-to-return/20240906-194721
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git main
patch link:    https://lore.kernel.org/r/20240906114455.730559-1-roheetchavan%40gmail.com
patch subject: [PATCH] lib80211: Use ERR_CAST() to return
config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20240907/202409071509.vfmUeHx0-lkp@xxxxxxxxx/config)
compiler: arceb-elf-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240907/202409071509.vfmUeHx0-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409071509.vfmUeHx0-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   net/wireless/lib80211.c: In function 'lib80211_crypt_null_init':
>> net/wireless/lib80211.c:230:25: warning: passing argument 1 of 'ERR_CAST' makes pointer from integer without a cast [-Wint-conversion]
     230 |         return ERR_CAST(1);
         |                         ^
         |                         |
         |                         int
   In file included from include/linux/string.h:10,
                    from include/linux/bitmap.h:13,
                    from include/linux/cpumask.h:12,
                    from include/linux/smp.h:13,
                    from include/linux/lockdep.h:14,
                    from include/linux/spinlock.h:63,
                    from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/umh.h:4,
                    from include/linux/kmod.h:9,
                    from include/linux/module.h:17,
                    from net/wireless/lib80211.c:19:
   include/linux/err.h:82:64: note: expected 'const void *' but argument is of type 'int'
      82 | static inline void * __must_check ERR_CAST(__force const void *ptr)
         |                                                    ~~~~~~~~~~~~^~~


vim +/ERR_CAST +230 net/wireless/lib80211.c

   227	
   228	static void *lib80211_crypt_null_init(int keyidx)
   229	{
 > 230		return ERR_CAST(1);
   231	}
   232	

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




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