[PATCH 2/4] um: Make mm_list and mm_list_lock static

[Tiwei Bie <tiwei.bie@linux.dev>]

From: Tiwei Bie <tiwei.btw@antgroup.com>

They are only used within mmu.c. Make them static.

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
---
 arch/um/kernel/skas/mmu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index 849fafa4b54f..afe9a2f251ef 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -20,8 +20,8 @@
 /* Ensure the stub_data struct covers the allocated area */
 static_assert(sizeof(struct stub_data) == STUB_DATA_PAGES * UM_KERN_PAGE_SIZE);
 
-spinlock_t mm_list_lock;
-struct list_head mm_list;
+static spinlock_t mm_list_lock;
+static struct list_head mm_list;
 
 int init_new_context(struct task_struct *task, struct mm_struct *mm)
 {
-- 
2.34.1