Hi, On Wed, Mar 20, 2019 at 03:35:38PM +0800, Baoquan He wrote: > The code comment above sparse_add_one_section() is obsolete and > incorrect, clean it up and write new one. > > Signed-off-by: Baoquan He <bhe@xxxxxxxxxx> > --- > mm/sparse.c | 9 ++++++--- > 1 file changed, 6 insertions(+), 3 deletions(-) > > diff --git a/mm/sparse.c b/mm/sparse.c > index 77a0554fa5bd..0a0f82c5d969 100644 > --- a/mm/sparse.c > +++ b/mm/sparse.c > @@ -674,9 +674,12 @@ static void free_map_bootmem(struct page *memmap) > #endif /* CONFIG_SPARSEMEM_VMEMMAP */ > > /* > - * returns the number of sections whose mem_maps were properly > - * set. If this is <=0, then that means that the passed-in > - * map was not consumed and must be freed. > + * sparse_add_one_section - add a memory section Please mention that this is only intended for memory hotplug > + * @nid: The node to add section on > + * @start_pfn: start pfn of the memory range > + * @altmap: device page map > + * > + * Return 0 on success and an appropriate error code otherwise. s/Return/Return:/ please > */ > int __meminit sparse_add_one_section(int nid, unsigned long start_pfn, > struct vmem_altmap *altmap) > -- > 2.17.2 > -- Sincerely yours, Mike.