Subject: linux-next: build failure after merge of the apparmor tree

From: Stephen Rothwell <[email-masked]>
Date: Wed, 26 Mar 2025 15:01:48 +1100

Hi all,

After merging the apparmor tree, today's linux-next build (x86_64
allmodconfig) failed like this:

security/apparmor/af_unix.c: In function 'unix_state_double_lock':
security/apparmor/af_unix.c:627:17: error: implicit declaration of function 'unix_state_lock'; did you mean 'unix_state_double_lock'? [-Wimplicit-function-declaration]
  627 |                 unix_state_lock(sk1);
      |                 ^~~~~~~~~~~~~~~
      |                 unix_state_double_lock
security/apparmor/af_unix.c: In function 'unix_state_double_unlock':
security/apparmor/af_unix.c:642:17: error: implicit declaration of function 'unix_state_unlock'; did you mean 'unix_state_double_lock'? [-Wimplicit-function-declaration]
  642 |                 unix_state_unlock(sk1);
      |                 ^~~~~~~~~~~~~~~~~
      |                 unix_state_double_lock

Caused by commit

  c05e705812d1 ("apparmor: add fine grained af_unix mediation")

interacting with commit

  84960bf24031 ("af_unix: Move internal definitions to net/unix/.")

from the net-next tree.

I have applied the following patch for today.

From: Stephen Rothwell <[email-masked]>
Date: Wed, 26 Mar 2025 14:31:44 +1100
Subject: [PATCH] fix up for "apparmor: add fine grained af_unix mediation"

interacting with "af_unix: Move internal definitions to net/unix/."

Signed-off-by: Stephen Rothwell <[email-masked]>
---
 include/net/af_unix.h | 3 +++
 net/unix/af_unix.h    | 3 ---
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index b588069ece7e..1af1841b7601 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -55,4 +55,7 @@ struct unix_sock {
 #define unix_sk(ptr) container_of_const(ptr, struct unix_sock, sk)
 #define unix_peer(sk) (unix_sk(sk)->peer)
 
+#define unix_state_lock(s)	spin_lock(&unix_sk(s)->lock)
+#define unix_state_unlock(s)	spin_unlock(&unix_sk(s)->lock)
+
 #endif
diff --git a/net/unix/af_unix.h b/net/unix/af_unix.h
index ed4aedc42813..59db179df9bb 100644
--- a/net/unix/af_unix.h
+++ b/net/unix/af_unix.h
@@ -8,9 +8,6 @@
 #define UNIX_HASH_SIZE	(256 * 2)
 #define UNIX_HASH_BITS	8
 
-#define unix_state_lock(s)	spin_lock(&unix_sk(s)->lock)
-#define unix_state_unlock(s)	spin_unlock(&unix_sk(s)->lock)
-
 struct sock *unix_peer_get(struct sock *sk);
 
 struct unix_skb_parms {
-- 
2.45.2

-- 
Cheers,
Stephen Rothwell