[jlayton:ceph-fscrypt-fnames 32/32] fs/ceph/ioctl.c:280 vet_mds_for_fscrypt() warn: ignoring unreachable code.

[jlayton:ceph-fscrypt-fnames 32/32] fs/ceph/ioctl.c:280 vet_mds_for_fscrypt() warn: ignoring unreachable code.

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
TO: Jeff Layton <jlayton@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git ceph-fscrypt-fnames
head:   39a539be8701e8570c48af2611043617a91d012d
commit: 39a539be8701e8570c48af2611043617a91d012d [32/32] HACK: allow fscrypt on non-supported MDS's
:::::: branch date: 2 hours ago
:::::: commit date: 2 hours ago
config: x86_64-randconfig-m001-20210304 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0

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

smatch warnings:
fs/ceph/ioctl.c:280 vet_mds_for_fscrypt() warn: ignoring unreachable code.

vim +280 fs/ceph/ioctl.c

4918b6d140c482 Sage Weil   2011-07-26  271  
47f988b715ebb8 Jeff Layton 2020-07-28  272  static int vet_mds_for_fscrypt(struct file *file)
47f988b715ebb8 Jeff Layton 2020-07-28  273  {
47f988b715ebb8 Jeff Layton 2020-07-28  274  	int i, ret = -EOPNOTSUPP;
47f988b715ebb8 Jeff Layton 2020-07-28  275  	struct ceph_mds_client	*mdsc = ceph_sb_to_mdsc(file_inode(file)->i_sb);
47f988b715ebb8 Jeff Layton 2020-07-28  276  
39a539be8701e8 Jeff Layton 2021-03-01  277  	/* HACK! Don't require MDS support for testing */
39a539be8701e8 Jeff Layton 2021-03-01  278  	return 0;
39a539be8701e8 Jeff Layton 2021-03-01  279  
47f988b715ebb8 Jeff Layton 2020-07-28 @280  	mutex_lock(&mdsc->mutex);
47f988b715ebb8 Jeff Layton 2020-07-28  281  	for (i = 0; i < mdsc->max_sessions; i++) {
47f988b715ebb8 Jeff Layton 2020-07-28  282  		struct ceph_mds_session *s = mdsc->sessions[i];
47f988b715ebb8 Jeff Layton 2020-07-28  283  
47f988b715ebb8 Jeff Layton 2020-07-28  284  		if (!s)
47f988b715ebb8 Jeff Layton 2020-07-28  285  			continue;
47f988b715ebb8 Jeff Layton 2020-07-28  286  		if (test_bit(CEPHFS_FEATURE_ALTERNATE_NAME, &s->s_features))
47f988b715ebb8 Jeff Layton 2020-07-28  287  			ret = 0;
47f988b715ebb8 Jeff Layton 2020-07-28  288  		break;
47f988b715ebb8 Jeff Layton 2020-07-28  289  	}
47f988b715ebb8 Jeff Layton 2020-07-28  290  	mutex_unlock(&mdsc->mutex);
47f988b715ebb8 Jeff Layton 2020-07-28  291  	return ret;
47f988b715ebb8 Jeff Layton 2020-07-28  292  }
47f988b715ebb8 Jeff Layton 2020-07-28  293  

:::::: The code at line 280 was first introduced by commit
:::::: 47f988b715ebb8f99cc2df3494db6cc3548deaa8 ceph: add fscrypt ioctls

:::::: TO: Jeff Layton <jlayton@kernel.org>
:::::: CC: Jeff Layton <jlayton@kernel.org>

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

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