mm/gup_test.c: mark gup_test_init as __init function

gup_test_init() is only called during initialization, mark it as __init to
save some memory.

Link: https://lkml.kernel.org/r/20201103081016.16532-1-song.bao.hua@hisilicon.com
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/gup_test.c b/mm/gup_test.c
index 087ddaf30eb4fe3d3978bb57a4d169eb9c8c5bbd..e3cf78e5873e41c6acdffdbf6f488da3de918382 100644 (file)
--- a/mm/gup_test.c
+++ b/mm/gup_test.c
@@ -236,7 +236,7 @@ static const struct file_operations gup_test_fops = {
        .unlocked_ioctl = gup_test_ioctl,
 };
 
-static int gup_test_init(void)
+static int __init gup_test_init(void)
 {
        debugfs_create_file_unsafe("gup_test", 0600, NULL, NULL,
                                   &gup_test_fops);