From: Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx>
Subject: memory: remove unused CONFIG_MEM_BLOCK_SIZE
Commit 3947be1969a9 ("[PATCH] memory hotplug: sysfs and add/remove
functions") defines CONFIG_MEM_BLOCK_SIZE, but this has never been
utilized anywhere.
It is a good practice to keep the CONFIG_* defines exclusively for the
Kbuild system. So, drop this unused definition.
This issue was noticed due to running ./scripts/checkkconfigsymbols.py.
Link: https://lkml.kernel.org/r/20211006120354.7468-1-lukas.bulwahn@xxxxxxxxx
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/memory.h | 1 -
1 file changed, 1 deletion(-)
--- a/include/linux/memory.h~memory-remove-unused-config_mem_block_size
+++ a/include/linux/memory.h
@@ -140,7 +140,6 @@ typedef int (*walk_memory_blocks_func_t)
extern int walk_memory_blocks(unsigned long start, unsigned long size,
void *arg, walk_memory_blocks_func_t func);
extern int for_each_memory_block(void *arg, walk_memory_blocks_func_t func);
-#define CONFIG_MEM_BLOCK_SIZE (PAGES_PER_SECTION<<PAGE_SHIFT)
extern int memory_group_register_static(int nid, unsigned long max_pages);
extern int memory_group_register_dynamic(int nid, unsigned long unit_pages);
_
