On 22.01.21 14:59, Baoquan He wrote: > Kernel test robot calling make with 'W=1' is triggering warning like > 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 | 6 ------ > include/linux/mm.h | 2 ++ > 2 files changed, 2 insertions(+), 6 deletions(-) > > diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h > index 779b6972aa84..9b4efe89e62d 100644 > --- a/arch/ia64/include/asm/pgtable.h > +++ b/arch/ia64/include/asm/pgtable.h > @@ -517,12 +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 (unsigned long size, int nid, unsigned long zone, > - unsigned long start_pfn); > -# endif /* CONFIG_VIRTUAL_MEM_MAP */ > # endif /* !__ASSEMBLY__ */ > > /* > diff --git a/include/linux/mm.h b/include/linux/mm.h > index 3dac7bc667ee..3d82b4f7cabc 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -2401,6 +2401,8 @@ extern void set_dma_reserve(unsigned long new_dma_reserve); > extern void memmap_init_zone(unsigned long, int, unsigned long, > unsigned long, unsigned long, enum meminit_context, > struct vmem_altmap *, int migratetype); > +extern void memmap_init(unsigned long size, int nid, > + unsigned long zone, unsigned long range_start_pfn); > extern void setup_per_zone_wmarks(void); > extern int __meminit init_per_zone_wmark_min(void); > extern void mem_init(void); > Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> -- Thanks, David / dhildenb
