[PATCH v3 4/4] Documentation: migration-2025.08.0: add information about attempts_locked

[Lars Schmidt <l.schmidt@pengutronix.de>]

Document the newly added feature.

Signed-off-by: Lars Schmidt <l.schmidt@pengutronix.de>
---
 Documentation/migration-guides/migration-2025.08.0.rst | 5 +++++
 Documentation/user/bootchooser.rst                     | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/Documentation/migration-guides/migration-2025.08.0.rst b/Documentation/migration-guides/migration-2025.08.0.rst
index d13d5c770d5e7688e0299184b0b8b938db160fca..da60132e7d8c784b08a43c8032ee7e4dc7cb7991 100644
--- a/Documentation/migration-guides/migration-2025.08.0.rst
+++ b/Documentation/migration-guides/migration-2025.08.0.rst
@@ -1,3 +1,8 @@
 Release v2025.08.0
 ==================
 
+Bootchooser
+-----------
+
+Bootchooser now interprets a top-level ``attempts_locked`` variable.
+For more information, see :ref:`attempts lock feature <bootchooser,attempts_lock>`
diff --git a/Documentation/user/bootchooser.rst b/Documentation/user/bootchooser.rst
index 1d7ece6c4b1255b41d359d3303daaf78bacfa17a..c094dca15a0e415d9076bf210ffdbece05ade62e 100644
--- a/Documentation/user/bootchooser.rst
+++ b/Documentation/user/bootchooser.rst
@@ -77,6 +77,9 @@ no remaining attempts left.
 To prevent ending up in an unbootable system after a number of failed boot
 attempts, there is also a built-in mechanism to reset the counters to their defaults,
 controlled by the ``global.bootchooser.reset_attempts`` variable.
+
+.. _bootchooser,attempts_lock:
+
 Alternatively, counting down the remaining attempts can be disabled by
 locking bootchooser boot attempts.
 This is done by defining a (32-bit) ``attempts_locked`` variable in the

-- 
2.39.5