linux-kernel - Re: [PATCH 10/10] smb: move client/smb2maperror.c to common/

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Message-ID: <202512051006.j5kB1bVW-lkp@intel.com>
Date: Fri, 5 Dec 2025 10:35:52 +0800
From: kernel test robot <lkp@...el.com>
To: chenxiaosong.chenxiaosong@...ux.dev, sfrench@...ba.org,
	smfrench@...il.com, linkinjeon@...nel.org, linkinjeon@...ba.org
Cc: oe-kbuild-all@...ts.linux.dev, linux-cifs@...r.kernel.org,
	linux-kernel@...r.kernel.org, chenxiaosong@...nxiaosong.com,
	ChenXiaoSong <chenxiaosong@...inos.cn>
Subject: Re: [PATCH 10/10] smb: move client/smb2maperror.c to common/

Hi,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[cannot apply to cifs/for-next brauner-vfs/vfs.all v6.18 v6.18-rc7 v6.18-rc6 next-20251203 v6.18 next-20251204]
[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/chenxiaosong-chenxiaosong-linux-dev/smb-client-reduce-loop-count-in-map_smb2_to_linux_error-by-half/20251204-130530
base:   linus/master
patch link:    https://lore.kernel.org/r/20251204045818.2590727-11-chenxiaosong.chenxiaosong%40linux.dev
patch subject: [PATCH 10/10] smb: move client/smb2maperror.c to common/
config: i386-randconfig-063-20251205 (https://download.01.org/0day-ci/archive/20251205/202512051006.j5kB1bVW-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251205/202512051006.j5kB1bVW-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/202512051006.j5kB1bVW-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> fs/smb/common/smb2maperror.c:2419:14: sparse: sparse: restricted __le32 degrades to integer
   fs/smb/common/smb2maperror.c:2419:31: sparse: sparse: restricted __le32 degrades to integer
   fs/smb/common/smb2maperror.c:2421:14: sparse: sparse: restricted __le32 degrades to integer
   fs/smb/common/smb2maperror.c:2421:31: sparse: sparse: restricted __le32 degrades to integer

vim +2419 fs/smb/common/smb2maperror.c

ddfbefbd393fb1 fs/cifs/smb2maperror.c       Steve French 2011-03-15  2411  
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2412  static unsigned int err_map_num = sizeof(smb2_error_map_table) /
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2413  				     sizeof(struct status_to_posix_error);
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2414  
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2415  static int cmp_smb2_status(const void *_a, const void *_b)
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2416  {
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2417  	const struct status_to_posix_error *a = _a, *b = _b;
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2418  
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04 @2419  	if (a->smb2_status < b->smb2_status)
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2420  		return -1;
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2421  	if (a->smb2_status > b->smb2_status)
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2422  		return 1;
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2423  	return 0;
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2424  }
99d0698b9bf5cf fs/smb/client/smb2maperror.c ChenXiaoSong 2025-12-04  2425  

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