[rw:muse_v1 5/5] fs/fuse/muse.c:113:6: warning: variable 'ret' set but not used

[rw:muse_v1 5/5] fs/fuse/muse.c:113:6: warning: variable 'ret' set but not used

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rw/misc.git muse_v1
head:   d1901f3da6f0b1e1448f26c782f8da52150bc187
commit: d1901f3da6f0b1e1448f26c782f8da52150bc187 [5/5] fuse: Implement MUSE: MTD in userspace
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/rw/misc.git/commit/?id=d1901f3da6f0b1e1448f26c782f8da52150bc187
        git remote add rw https://git.kernel.org/pub/scm/linux/kernel/git/rw/misc.git
        git fetch --no-tags rw muse_v1
        git checkout d1901f3da6f0b1e1448f26c782f8da52150bc187
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   fs/fuse/muse.c: In function 'muse_mtd_read':
>> fs/fuse/muse.c:113:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
     113 |  int ret;
         |      ^~~
   fs/fuse/muse.c: In function 'muse_mtd_write':
   fs/fuse/muse.c:132:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
     132 |  int ret;
         |      ^~~

vim +/ret +113 fs/fuse/muse.c

   104	
   105	static int muse_mtd_read(struct mtd_info *mtd, loff_t from, size_t len,
   106				 size_t *retlen, u_char *buf)
   107	{
   108		struct kvec iov = { .iov_base = buf, .iov_len = len };
   109		struct muse_conn *mc = mtd->priv;
   110		struct kiocb kiocb;
   111		struct iov_iter to;
   112		loff_t pos = from;
 > 113		int ret;
   114	
   115		iov_iter_kvec(&to, READ, &iov, 1, len);
   116		init_sync_kiocb(&kiocb, mc->dummy_file);
   117	
   118		ret = do_dio(&kiocb, &to, &pos, FUSE_DIO_NOFS);
   119	
   120		*retlen = len;
   121		return len;
   122	}
   123	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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