From: Arnd Bergmann <arnd@xxxxxxxx> There are two definitions of this function, but the second one lacks the 'static' annotation: mm/sparse.c:704:25: error: no previous prototype for 'populate_section_memmap' [-Werror=missing-prototypes] Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- mm/sparse.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/sparse.c b/mm/sparse.c index c2afdb26039e..b8d5d58fe240 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -701,7 +701,7 @@ static int fill_subsection_map(unsigned long pfn, unsigned long nr_pages) return rc; } #else -struct page * __meminit populate_section_memmap(unsigned long pfn, +static struct page * __meminit populate_section_memmap(unsigned long pfn, unsigned long nr_pages, int nid, struct vmem_altmap *altmap, struct dev_pagemap *pgmap) { -- 2.39.2