mm/damon: add a kernel-doc comment for damon_ctx->rnd_state

Fix below kernel document build warning:

    WARNING: ../include/linux/damon.h:909 struct member 'rnd_state' not described in 'damon_ctx'

Link: https://lore.kernel.org/20260628220808.98931-3-sj@kernel.org
Fixes: 9012c4e647df ("mm/damon: replace damon_rand() with a per-ctx lockless PRNG")
Signed-off-by: SJ Park <sj@kernel.org>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Closes: https://lore.kernel.org/4df95955-b255-4e5a-90c4-35db02f3111f@infradead.org
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/include/linux/damon.h b/include/linux/damon.h
index fdac40cd55d4eab06c0b1791369d95a820ce4a01..02ac34537df9a707ce38ec56201775734c30ea6b 100644 (file)
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -849,6 +849,7 @@ struct damon_attrs {
  * @pause:     Pause kdamond main loop.
  * @adaptive_targets:  Head of monitoring targets (&damon_target) list.
  * @schemes:           Head of schemes (&damos) list.
+ * @rnd_state: Per-ctx PRNG state for damon_rand().
  */
 struct damon_ctx {
        struct damon_attrs attrs;
@@ -906,7 +907,6 @@ struct damon_ctx {
        struct list_head adaptive_targets;
        struct list_head schemes;
 
-       /* Per-ctx PRNG state for damon_rand(); kdamond is the sole consumer. */
        struct rnd_state rnd_state;
 };