On 22.01.21 08:03, Baoquan He wrote: > Kernel test robot calling make with 'W=1' triggering warning like below > below for memmap_init_zone() function. > > mm/page_alloc.c:6259:23: warning: no previous prototype for 'memmap_init_zone' [-Wmissing-prototypes] > 6259 | void __meminit __weak memmap_init_zone(unsigned long size, int nid, > | ^~~~~~~~~~~~~~~~ > > Fix it by adding the function declaration in include/linux/mm.h. > Since memmap_init_zone() has a generic version with '__weak', > the declaratoin in ia64 header file can be simply removed. > > Signed-off-by: Baoquan He <bhe@xxxxxxxxxx> > Reported-by: kernel test robot <lkp@xxxxxxxxx> > --- > arch/ia64/include/asm/pgtable.h | 5 ----- > include/linux/mm.h | 1 + > 2 files changed, 1 insertion(+), 5 deletions(-) > > diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h > index 2c81394a2430..9b4efe89e62d 100644 > --- a/arch/ia64/include/asm/pgtable.h > +++ b/arch/ia64/include/asm/pgtable.h > @@ -517,11 +517,6 @@ extern struct page *zero_page_memmap_ptr; > __changed; \ > }) > #endif > - > -# ifdef CONFIG_VIRTUAL_MEM_MAP > - /* arch mem_map init routine is needed due to holes in a virtual mem_map */ > - extern void memmap_init_zone(struct zone *zone); > -# endif /* CONFIG_VIRTUAL_MEM_MAP */ > # endif /* !__ASSEMBLY__ */ > > /* > diff --git a/include/linux/mm.h b/include/linux/mm.h > index 56bb239f9150..073049bd0b29 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -2401,6 +2401,7 @@ extern void set_dma_reserve(unsigned long new_dma_reserve); > extern void memmap_init_range(unsigned long, int, unsigned long, > unsigned long, unsigned long, enum meminit_context, > struct vmem_altmap *, int migratetype); > +extern void memmap_init_zone(struct zone *zone); > extern void setup_per_zone_wmarks(void); > extern int __meminit init_per_zone_wmark_min(void); > extern void mem_init(void); > This patch is on top of your other series, no? In -next, we have extern void memmap_init_zone(unsigned long, int, unsigned long, ... In that file, so something is wrong. -- Thanks, David / dhildenb
