linux-kernel - [PATCH 1/1] mm: vmalloc: Mark vmap_init_free_space() with _

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Date: Thu, 11 Jan 2024 14:26:28 +0100
From: "Uladzislau Rezki (Sony)" <urezki@...il.com>
To: linux-mm@...ck.org,
	Andrew Morton <akpm@...ux-foundation.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
	Baoquan He <bhe@...hat.com>,
	Lorenzo Stoakes <lstoakes@...il.com>,
	Christoph Hellwig <hch@...radead.org>,
	Matthew Wilcox <willy@...radead.org>,
	"Liam R . Howlett" <Liam.Howlett@...cle.com>,
	Dave Chinner <david@...morbit.com>,
	Uladzislau Rezki <urezki@...il.com>,
	Oleksiy Avramchenko <oleksiy.avramchenko@...y.com>,
	kernel test robot <lkp@...el.com>
Subject: [PATCH 1/1] mm: vmalloc: Mark vmap_init_free_space() with __init tag

The vmap_init_free_space() function is called only once
therefore tag it with __init. Apart of that it access the
"vmlist" variable that is located in ".init.data" section.

Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202401112056.I41bELL4-lkp@intel.com/
Fixes: 86817057732 ("mm: vmalloc: remove global vmap_area_root rb-tree")
Signed-off-by: Uladzislau Rezki (Sony) <urezki@...il.com>
---
 mm/vmalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 43a6608e1397..257981e37936 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -4834,7 +4834,7 @@ module_init(proc_vmalloc_init);
 
 #endif
 
-static void vmap_init_free_space(void)
+static void __init vmap_init_free_space(void)
 {
 	unsigned long vmap_start = 1;
 	const unsigned long vmap_end = ULONG_MAX;
-- 
2.39.2