On 04/21/20 at 11:49am, Mike Rapoport wrote:

On Tue, Apr 21, 2020 at 10:24:35AM +0800, Baoquan He wrote:

quoted

On 04/12/20 at 10:48pm, Mike Rapoport wrote:

quoted

From: Mike Rapoport <redacted>

The early_pfn_to_nid() and it's helper __early_pfn_to_nid() are spread
around include/linux/mm.h, include/linux/mmzone.h and mm/page_alloc.c.

Drop unused stub for __early_pfn_to_nid() and move its actual generic
implementation close to its users.

Signed-off-by: Mike Rapoport <redacted>
---
 include/linux/mm.h     |  4 ++--
 include/linux/mmzone.h |  9 --------
 mm/page_alloc.c        | 51 +++++++++++++++++++++---------------------
 3 files changed, 27 insertions(+), 37 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 5a323422d783..a404026d14d4 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h

@@ -2388,9 +2388,9 @@ extern void sparse_memory_present_with_active_regions(int nid);
 
 #if !defined(CONFIG_HAVE_MEMBLOCK_NODE_MAP) && \
     !defined(CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID)
-static inline int __early_pfn_to_nid(unsigned long pfn,
-					struct mminit_pfnnid_cache *state)
+static inline int early_pfn_to_nid(unsigned long pfn)
 {
+	BUILD_BUG_ON(IS_ENABLED(CONFIG_NUMA));
 	return 0;
 }

It's better to make a separate patch to drop __early_pfn_to_nid() here.

Not sure it's really worth it.
This patch anyway only moves the code around without any actual changes.

OK, it's fine to me.