From: Arnd Bergmann <arnd@xxxxxxxx> This function is called whenever CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK or CONFIG_HAVE_SETUP_PER_CPU_AREA, but only declared when the former is set: mm/percpu.c:3055:12: error: no previous prototype for 'pcpu_embed_first_chunk' [-Werror=missing-prototypes] There is no real point in hiding declarations, so just remove the #ifdef here. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- include/linux/percpu.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 1338ea2aa720..42125cf9c506 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -103,12 +103,10 @@ extern void __init pcpu_free_alloc_info(struct pcpu_alloc_info *ai); extern void __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, void *base_addr); -#ifdef CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK extern int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size, size_t atom_size, pcpu_fc_cpu_distance_fn_t cpu_distance_fn, pcpu_fc_cpu_to_node_fn_t cpu_to_nd_fn); -#endif #ifdef CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK void __init pcpu_populate_pte(unsigned long addr); -- 2.39.2