linux-kernel - [PATCH] memory: remove unused CONFIG_MEM_BLOCK

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Date:   Wed,  6 Oct 2021 14:03:54 +0200
From:   Lukas Bulwahn <lukas.bulwahn@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        David Hildenbrand <david@...hat.com>,
        Michal Hocko <mhocko@...e.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>, linux-mm@...ck.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
        Lukas Bulwahn <lukas.bulwahn@...il.com>
Subject: [PATCH] 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.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@...il.com>
---
 include/linux/memory.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/linux/memory.h b/include/linux/memory.h
index c46ff374d48d..a216829df280 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -143,7 +143,6 @@ 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);
-- 
2.26.2