[RFC PATCH android-common] ANDROID: dma-buf: system_heap: freelist_waitqueue can be static

[kernel test robot <lkp@intel.com>]

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drivers/dma-buf/heaps/deferred-free-helper.c:23:19: warning: symbol 'freelist_waitqueue' was not declared. Should it be static?
drivers/dma-buf/heaps/deferred-free-helper.c:24:20: warning: symbol 'freelist_task' was not declared. Should it be static?

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
---
 deferred-free-helper.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma-buf/heaps/deferred-free-helper.c b/drivers/dma-buf/heaps/deferred-free-helper.c
index dd09c4b1271cf..fb54d28c917b6 100644
--- a/drivers/dma-buf/heaps/deferred-free-helper.c
+++ b/drivers/dma-buf/heaps/deferred-free-helper.c
@@ -20,8 +20,8 @@
 
 static LIST_HEAD(free_list);
 static size_t list_nr_pages;
-wait_queue_head_t freelist_waitqueue;
-struct task_struct *freelist_task;
+static wait_queue_head_t freelist_waitqueue;
+static struct task_struct *freelist_task;
 static DEFINE_SPINLOCK(free_list_lock);
 
 void deferred_free(struct deferred_freelist_item *item,