mm/huge_memory.c:2663:6: warning: variable ‘count’ set but not used [-Wunused-but-set-variable] 2663 | int count, mapcount, extra_pins, ret; | ^~~~~ This variable is not used in function , this commit remove it to fix the warning. Signed-off-by: Pu Lehui <pulehui@xxxxxxxxxx> --- mm/huge_memory.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 52ca04b905cf..a23a127302e9 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2660,7 +2660,7 @@ int split_huge_page_to_list(struct page *page, struct list_head *list) struct deferred_split *ds_queue = get_deferred_split_queue(head); struct anon_vma *anon_vma = NULL; struct address_space *mapping = NULL; - int count, mapcount, extra_pins, ret; + int mapcount, extra_pins, ret; pgoff_t end; VM_BUG_ON_PAGE(is_huge_zero_page(head), head); @@ -2737,7 +2737,6 @@ int split_huge_page_to_list(struct page *page, struct list_head *list) /* Prevent deferred_split_scan() touching ->_refcount */ spin_lock(&ds_queue->split_queue_lock); - count = page_count(head); mapcount = total_mapcount(head); if (!mapcount && page_ref_freeze(head, 1 + extra_pins)) { if (!list_empty(page_deferred_list(head))) { -- 2.17.1