Re: [PATCH 2/2] coda: support FSCONFIG_SET_FD for fd mount flag

[kernel test robot <lkp@intel.com>]

Hi Aleksa,

kernel test robot noticed the following build errors:

[auto build test ERROR on b80cc4df1124702c600fd43b784e423a30919204]

url:    https://github.com/intel-lab-lkp/linux/commits/Aleksa-Sarai/autofs-fix-missing-fput-for-FSCONFIG_SET_FD/20240718-230056
base:   b80cc4df1124702c600fd43b784e423a30919204
patch link:    https://lore.kernel.org/r/20240719-fsconfig-fsparam_fd-fixes-v1-2-7ccd315c2ad4%40cyphar.com
patch subject: [PATCH 2/2] coda: support FSCONFIG_SET_FD for fd mount flag
config: arm-randconfig-003-20240719 (https://download.01.org/0day-ci/archive/20240719/202407190741.8fA9KJbt-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240719/202407190741.8fA9KJbt-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407190741.8fA9KJbt-lkp@intel.com/

All errors (new ones prefixed by >>):

   fs/coda/inode.c: In function 'coda_parse_fd':
>> fs/coda/inode.c:129:13: error: 'param' undeclared (first use in this function); did you mean 'parameq'?
     129 |         if (param->type == fs_value_is_file) {
         |             ^~~~~
         |             parameq
   fs/coda/inode.c:129:13: note: each undeclared identifier is reported only once for each function it appears in
>> fs/coda/inode.c:133:29: error: 'result' undeclared (first use in this function); did you mean 'mf_result'?
     133 |                 file = fget(result->uint_32);
         |                             ^~~~~~
         |                             mf_result


vim +129 fs/coda/inode.c

   121	
   122	static int coda_parse_fd(struct fs_context *fc, int fd)
   123	{
   124		struct coda_fs_context *ctx = fc->fs_private;
   125		struct file *file;
   126		struct inode *inode;
   127		int idx;
   128	
 > 129		if (param->type == fs_value_is_file) {
   130			file = param->file;
   131			param->file = NULL;
   132		} else {
 > 133			file = fget(result->uint_32);
   134		}
   135		if (!file)
   136			return -EBADF;
   137	
   138		inode = file_inode(file);
   139		if (!S_ISCHR(inode->i_mode) || imajor(inode) != CODA_PSDEV_MAJOR) {
   140			fput(file);
   141			return invalf(fc, "code: Not coda psdev");
   142		}
   143	
   144		idx = iminor(inode);
   145		fput(file);
   146	
   147		if (idx < 0 || idx >= MAX_CODADEVS)
   148			return invalf(fc, "coda: Bad minor number");
   149		ctx->idx = idx;
   150		return 0;
   151	}
   152	

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