If MEMORY_HOTPLUG is n, build fails: drivers/nvdimm/e820.c: In function ‘e820_register_one’: drivers/nvdimm/e820.c:24:12: error: implicit declaration of function ‘phys_to_target_node’; did you mean ‘set_page_node’? [-Werror=implicit-function-declaration] int nid = phys_to_target_node(res->start); ^~~~~~~~~~~~~~~~~~~ set_page_node
Fixes: 7b27a8622f80 ("libnvdimm/e820: Retrieve and populate correct 'target_node' info") Signed-off-by: YueHaibing <yuehaib...@huawei.com> --- drivers/nvdimm/e820.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/nvdimm/e820.c b/drivers/nvdimm/e820.c index 4cd18be9d0e9..c741f029f215 100644 --- a/drivers/nvdimm/e820.c +++ b/drivers/nvdimm/e820.c @@ -17,6 +17,13 @@ static int e820_pmem_remove(struct platform_device *pdev) return 0; } +#ifndef CONFIG_MEMORY_HOTPLUG +static inline int phys_to_target_node(u64 start) +{ + return 0; +} +#endif + static int e820_register_one(struct resource *res, void *data) { struct nd_region_desc ndr_desc; -- 2.17.1