From: Miaohe Lin <linmiaohe@xxxxxxxxxx> Subject: mm/vmstat: remove unneeded return value The return value of pagetypeinfo_showfree and pagetypeinfo_showblockcount are unused now. Remove them. Link: https://lkml.kernel.org/r/20210715122911.15700-4-linmiaohe@xxxxxxxxxx Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/vmstat.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) --- a/mm/vmstat.c~mm-vmstat-remove-unneeded-return-value +++ a/mm/vmstat.c @@ -1454,7 +1454,7 @@ static void pagetypeinfo_showfree_print( } /* Print out the free pages at each order for each migatetype */ -static int pagetypeinfo_showfree(struct seq_file *m, void *arg) +static void pagetypeinfo_showfree(struct seq_file *m, void *arg) { int order; pg_data_t *pgdat = (pg_data_t *)arg; @@ -1466,8 +1466,6 @@ static int pagetypeinfo_showfree(struct seq_putc(m, '\n'); walk_zones_in_node(m, pgdat, true, false, pagetypeinfo_showfree_print); - - return 0; } static void pagetypeinfo_showblockcount_print(struct seq_file *m, @@ -1503,7 +1501,7 @@ static void pagetypeinfo_showblockcount_ } /* Print out the number of pageblocks for each migratetype */ -static int pagetypeinfo_showblockcount(struct seq_file *m, void *arg) +static void pagetypeinfo_showblockcount(struct seq_file *m, void *arg) { int mtype; pg_data_t *pgdat = (pg_data_t *)arg; @@ -1514,8 +1512,6 @@ static int pagetypeinfo_showblockcount(s seq_putc(m, '\n'); walk_zones_in_node(m, pgdat, true, false, pagetypeinfo_showblockcount_print); - - return 0; } /* _