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

From: Aleksa Sarai
Date: Thu Jul 18 2024 - 21:22:15 EST


On 2024-07-19, kernel test robot <lkp@xxxxxxxxx> wrote:
> 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@xxxxxxxxx/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@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/202407190741.8fA9KJbt-lkp@xxxxxxxxx/
>
> 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

D'oh. I compile tested it but this fs wasn't enabled in my config...

My bad.

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

--
Aleksa Sarai
Senior Software Engineer (Containers)
SUSE Linux GmbH
<https://www.cyphar.com/>

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