make W=1 generates the following warning for vmscan.c mm/vmscan.c:1814: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst It is not a kerneldoc comment and isolate_lru_pages() is a static function. While the detailed comment is nice, it does not need to be exposed via kernel-doc. Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 5199b9696bab..73682ba1f93c 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1810,7 +1810,7 @@ static __always_inline void update_lru_sizes(struct lruvec *lruvec, } -/** +/* * Isolating page from the lruvec to fill in @dst list by nr_to_scan times. * * lruvec->lru_lock is heavily contended. Some of the functions that -- 2.26.2