swiotlb: drop pointless static qualifier in swiotlb_create_debugfs()

There is no need to have the 'struct dentry *d_swiotlb_usage' variable
static since new value always be assigned before use it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index a01b83e..2b0c8fd 100644 (file)
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -682,7 +682,7 @@ swiotlb_dma_supported(struct device *hwdev, u64 mask)
 
 static int __init swiotlb_create_debugfs(void)
 {
-       static struct dentry *d_swiotlb_usage;
+       struct dentry *d_swiotlb_usage;
        struct dentry *ent;
 
        d_swiotlb_usage = debugfs_create_dir("swiotlb", NULL);