[PATCH v2 stable-5.10.y stable-5.15.y] docs: futex: Fix kernel-doc references after code split-up preparation

[Salvatore Bonaccorso <carnil@debian.org>]

In upstream commit 77e52ae35463 ("futex: Move to kernel/futex/") the
futex code from kernel/futex.c was moved into kernel/futex/core.c in
preparation of the split-up of the implementation in various files.

Point kernel-doc references to the new files as otherwise the
documentation shows errors on build:

    [...]
    Error: Cannot open file ./kernel/futex.c
    Error: Cannot open file ./kernel/futex.c
    [...]
    WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -sphinx-version 3.4.3 -internal ./kernel/futex.c' failed with return code 2

There is no direct upstream commit for this change. It is made in
analogy to commit bc67f1c454fb ("docs: futex: Fix kernel-doc
references") applied as consequence of the restructuring of the futex
code.

Fixes: 77e52ae35463 ("futex: Move to kernel/futex/")
Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
---
v1->v2:
 - Fix typo in description about new target file for futex.c code
 - Indent block with build log output

 Documentation/kernel-hacking/locking.rst                    | 2 +-
 Documentation/translations/it_IT/kernel-hacking/locking.rst | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/kernel-hacking/locking.rst b/Documentation/kernel-hacking/locking.rst
index 6ed806e6061b..a6d89efede79 100644
--- a/Documentation/kernel-hacking/locking.rst
+++ b/Documentation/kernel-hacking/locking.rst
@@ -1358,7 +1358,7 @@ Mutex API reference
 Futex API reference
 ===================
 
-.. kernel-doc:: kernel/futex.c
+.. kernel-doc:: kernel/futex/core.c
    :internal:
 
 Further reading
diff --git a/Documentation/translations/it_IT/kernel-hacking/locking.rst b/Documentation/translations/it_IT/kernel-hacking/locking.rst
index bf1acd6204ef..192ab8e28125 100644
--- a/Documentation/translations/it_IT/kernel-hacking/locking.rst
+++ b/Documentation/translations/it_IT/kernel-hacking/locking.rst
@@ -1400,7 +1400,7 @@ Riferimento per l'API dei Mutex
 Riferimento per l'API dei Futex
 ===============================
 
-.. kernel-doc:: kernel/futex.c
+.. kernel-doc:: kernel/futex/core.c
    :internal:
 
 Approfondimenti
-- 
2.40.0