Hi all,

Today's linux-next merge of the security tree got a conflict in:

  include/linux/lsm_hook_defs.h

between commits:

  e2f0d6d4569d1 ("fs: port ->setattr() to pass const mnt_idmap")
  7d0db72041b74 ("fs: port ->mknod() to pass const mnt_idmap")
  ad664d41535a5 ("fs: port ->tmpfile() to pass const mnt_idmap")
  16d90b57d8439 ("fs: port xattr to const mnt_idmap")
  59ffddf0fbeb1 ("fs: port acl to const mnt_idmap")

from the vfs-brauner tree and commit:

  16959c469f232 ("lsm: expose mount idmaps to inode hooks")

from the security tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

diff --cc include/linux/lsm_hook_defs.h
index c9561564585e7,af9624c30f99d..0000000000000
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h
@@@ -121,29 -120,30 +121,30 @@@ LSM_HOOK(int, -EOPNOTSUPP, inode_init_s
  	 int *xattr_count)
  LSM_HOOK(int, 0, inode_init_security_anon, struct inode *inode,
  	 const struct qstr *name, const struct inode *context_inode)
- LSM_HOOK(int, 0, inode_create, struct inode *dir, struct dentry *dentry,
- 	 umode_t mode)
 -LSM_HOOK(int, 0, inode_create, struct mnt_idmap *idmap, struct inode *dir,
++LSM_HOOK(int, 0, inode_create, const struct mnt_idmap *idmap, struct inode *dir,
+ 	 struct dentry *dentry, umode_t mode)
 -LSM_HOOK(void, LSM_RET_VOID, inode_post_create_tmpfile, struct mnt_idmap *idmap,
 +LSM_HOOK(void, LSM_RET_VOID, inode_post_create_tmpfile, const struct mnt_idmap *idmap,
  	 struct inode *inode)
- LSM_HOOK(int, 0, inode_link, struct dentry *old_dentry, struct inode *dir,
- 	 struct dentry *new_dentry)
+ LSM_HOOK(int, 0, inode_link, struct mnt_idmap *idmap,
+ 	 struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry)
  LSM_HOOK(int, 0, inode_unlink, struct inode *dir, struct dentry *dentry)
- LSM_HOOK(int, 0, inode_symlink, struct inode *dir, struct dentry *dentry,
- 	 const char *old_name)
- LSM_HOOK(int, 0, inode_mkdir, struct inode *dir, struct dentry *dentry,
- 	 umode_t mode)
+ LSM_HOOK(int, 0, inode_symlink, struct mnt_idmap *idmap, struct inode *dir,
+ 	 struct dentry *dentry, const char *old_name)
+ LSM_HOOK(int, 0, inode_mkdir, struct mnt_idmap *idmap, struct inode *dir,
+ 	 struct dentry *dentry, umode_t mode)
  LSM_HOOK(int, 0, inode_rmdir, struct inode *dir, struct dentry *dentry)
- LSM_HOOK(int, 0, inode_mknod, struct inode *dir, struct dentry *dentry,
- 	 umode_t mode, dev_t dev)
+ LSM_HOOK(int, 0, inode_mknod, struct mnt_idmap *idmap, struct inode *dir,
+ 	 struct dentry *dentry, umode_t mode, dev_t dev)
  LSM_HOOK(int, 0, inode_rename, struct inode *old_dir, struct dentry *old_dentry,
  	 struct inode *new_dir, struct dentry *new_dentry)
  LSM_HOOK(int, 0, inode_readlink, struct dentry *dentry)
  LSM_HOOK(int, 0, inode_follow_link, struct dentry *dentry, struct inode *inode,
  	 bool rcu)
- LSM_HOOK(int, 0, inode_permission, struct inode *inode, int mask)
 -LSM_HOOK(int, 0, inode_permission, struct mnt_idmap *idmap,
++LSM_HOOK(int, 0, inode_permission, const struct mnt_idmap *idmap,
+ 	 struct inode *inode, int mask)
 -LSM_HOOK(int, 0, inode_setattr, struct mnt_idmap *idmap, struct dentry *dentry,
 +LSM_HOOK(int, 0, inode_setattr, const struct mnt_idmap *idmap, struct dentry *dentry,
  	 struct iattr *attr)
 -LSM_HOOK(void, LSM_RET_VOID, inode_post_setattr, struct mnt_idmap *idmap,
 +LSM_HOOK(void, LSM_RET_VOID, inode_post_setattr, const struct mnt_idmap *idmap,
  	 struct dentry *dentry, int ia_valid)
  LSM_HOOK(int, 0, inode_getattr, const struct path *path)
  LSM_HOOK(int, 0, inode_xattr_skipcap, const char *name)