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@gmail.com
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/include/linux/memory.h b/include/linux/memory.h
index 182c606adb060ff962f6f34e4bd76afb9ab63b50..053a530c7bdd35140d834f36e9d450f9277099d0 100644 (file)
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -140,7 +140,6 @@ typedef int (*walk_memory_blocks_func_t)(struct memory_block *, void *);
 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);