From: Barry Song <song.bao.hua@xxxxxxxxxxxxx> Subject: 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@xxxxxxxxxxxxx Signed-off-by: Barry Song <song.bao.hua@xxxxxxxxxxxxx> Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Cc: John Hubbard <jhubbard@xxxxxxxxxx> Cc: Ralph Campbell <rcampbell@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/gup_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/gup_test.c~mm-gup_benchmark-mark-gup_benchmark_init-as-__init-function +++ a/mm/gup_test.c @@ -236,7 +236,7 @@ static const struct file_operations gup_ .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); _
