drop_slab_node is only used in drop_slab. So remove it's declaration from header file and add keyword static for it's definition. Signed-off-by: Gang Li <ligang.bdlg@xxxxxxxxxxxxx> --- include/linux/mm.h | 1 - mm/vmscan.c | 2 +- 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index a7e4a9e7d807..08b36283a57a 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -3167,7 +3167,6 @@ int drop_caches_sysctl_handler(struct ctl_table *, int, void *, size_t *, #endif void drop_slab(void); -void drop_slab_node(int nid); #ifndef CONFIG_MMU #define randomize_va_space 0 diff --git a/mm/vmscan.c b/mm/vmscan.c index fb9584641ac7..b02548a32a1d 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -951,7 +951,7 @@ static unsigned long shrink_slab(gfp_t gfp_mask, int nid, return freed; } -void drop_slab_node(int nid) +static void drop_slab_node(int nid) { unsigned long freed; int shift = 0; -- 2.20.1