[PATCH] mm/gup_test:fix ioctl fail for compat task

[Haibo Li]

When tools/testing/selftests/mm/gup_test.c is compiled as 32bit,
then run on arm64 kernel,
it reports "ioctl: Inappropriate ioctl for device".

Fix it by filling compat_ioctl in gup_test_fops

Signed-off-by: Haibo Li <haibo.li@xxxxxxxxxxxx>
---
 mm/gup_test.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/gup_test.c b/mm/gup_test.c
index 8ae7307a1bb6..c0421b786dcd 100644
--- a/mm/gup_test.c
+++ b/mm/gup_test.c
@@ -381,6 +381,7 @@ static int gup_test_release(struct inode *inode, struct file *file)
 static const struct file_operations gup_test_fops = {
 	.open = nonseekable_open,
 	.unlocked_ioctl = gup_test_ioctl,
+	.compat_ioctl = compat_ptr_ioctl,
 	.release = gup_test_release,
 };
 
-- 
2.25.1