Hello Seth Forshee,
The patch 60bcc88ad185: "fuse: Add posix ACL support" from Aug 29,
2016, leads to the following static checker warning:
fs/fuse/acl.c:39 fuse_get_acl()
warn: we tested 'fc->no_getxattr' before and it was 'false'
fs/fuse/acl.c
14 struct posix_acl *fuse_get_acl(struct inode *inode, int type)
15 {
16 struct fuse_conn *fc = get_fuse_conn(inode);
17 int size;
18 const char *name;
19 void *value = NULL;
20 struct posix_acl *acl;
21
22 if (!fc->posix_acl || fc->no_getxattr)
If "fc->no_getxattr" is set then we return NULL.
23 return NULL;
24
25 if (type == ACL_TYPE_ACCESS)
26 name = XATTR_NAME_POSIX_ACL_ACCESS;
27 else if (type == ACL_TYPE_DEFAULT)
28 name = XATTR_NAME_POSIX_ACL_DEFAULT;
29 else
30 return ERR_PTR(-EOPNOTSUPP);
31
32 value = kmalloc(PAGE_SIZE, GFP_KERNEL);
33 if (!value)
34 return ERR_PTR(-ENOMEM);
35 size = fuse_getxattr(inode, name, value, PAGE_SIZE);
36 if (size > 0)
37 acl = posix_acl_from_xattr(&init_user_ns, value, size);
38 else if ((size == 0) || (size == -ENODATA) ||
39 (size == -EOPNOTSUPP && fc->no_getxattr))
^^^^^^^^^^^^^^^
So we can't actually reach here.
40 acl = NULL;
41 else if (size == -ERANGE)
42 acl = ERR_PTR(-E2BIG);
43 else
44 acl = ERR_PTR(size);
regards,
dan carpenter
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