Hi all,

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

  include/linux/ns/ns_common_types.h

between commit:

  82e9343260dfc ("nsfs: keep namespace tree fields stable until after RCU grace period")

from the vfs-brauner-fixes tree and commit:

  f675d2e955696 ("lsm: add LSM blob and hooks for namespaces")

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/ns/ns_common_types.h
index 6ed6b497831c7,5cfe0ce3c8818..0000000000000
--- a/include/linux/ns/ns_common_types.h
+++ b/include/linux/ns/ns_common_types.h
@@@ -116,8 -116,13 +116,11 @@@ struct ns_common 
  	struct dentry *stashed;
  	const struct proc_ns_operations *ops;
  	unsigned int inum;
 +	struct ns_tree;
 +	struct rcu_head ns_rcu;
+ #ifdef CONFIG_SECURITY
+ 	void *ns_security;
+ #endif
 -	union {
 -		struct ns_tree;
 -		struct rcu_head ns_rcu;
 -	};
  };
  
  #define to_ns_common(__ns)                                    \

On Tue, Sep 1, 2026 at 9:51 AM Mark Brown <broonie@kernel.org> wrote:
>
> Hi all,
>
> Today's linux-next merge of the security tree got a conflict in:
>
>   include/linux/ns/ns_common_types.h
>
> between commit:
>
>   82e9343260dfc ("nsfs: keep namespace tree fields stable until after RCU grace period")
>
> from the vfs-brauner-fixes tree and commit:
>
>   f675d2e955696 ("lsm: add LSM blob and hooks for namespaces")
>
> 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/ns/ns_common_types.h
> index 6ed6b497831c7,5cfe0ce3c8818..0000000000000
> --- a/include/linux/ns/ns_common_types.h
> +++ b/include/linux/ns/ns_common_types.h
> @@@ -116,8 -116,13 +116,11 @@@ struct ns_common
>         struct dentry *stashed;
>         const struct proc_ns_operations *ops;
>         unsigned int inum;
>  +      struct ns_tree;
>  +      struct rcu_head ns_rcu;
> + #ifdef CONFIG_SECURITY
> +       void *ns_security;
> + #endif
>  -      union {
>  -              struct ns_tree;
>  -              struct rcu_head ns_rcu;
>  -      };
>   };
                                \
Looks reasonable, thanks Mark.

-- 
paul-moore.com