+ mm-gup_test-fix-ioctl-fail-for-compat-task.patch added to mm-hotfixes-unstable branch

+ mm-gup_test-fix-ioctl-fail-for-compat-task.patch added to mm-hotfixes-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/gup_test: fix ioctl fail for compat task
has been added to the -mm mm-hotfixes-unstable branch.  Its filename is
     mm-gup_test-fix-ioctl-fail-for-compat-task.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-gup_test-fix-ioctl-fail-for-compat-task.patch

This patch will later appear in the mm-hotfixes-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Haibo Li <haibo.li@mediatek.com>
Subject: mm/gup_test: fix ioctl fail for compat task
Date: Fri, 26 May 2023 10:21:25 +0800

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

Link: https://lkml.kernel.org/r/20230526022125.175728-1-haibo.li@mediatek.com
Signed-off-by: Haibo Li <haibo.li@mediatek.com>
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/gup_test.c |    1 +
 1 file changed, 1 insertion(+)

--- a/mm/gup_test.c~mm-gup_test-fix-ioctl-fail-for-compat-task
+++ a/mm/gup_test.c
@@ -381,6 +381,7 @@ static int gup_test_release(struct inode
 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,
 };
 
_

Patches currently in -mm which might be from haibo.li@mediatek.com are

mm-gup_test-fix-ioctl-fail-for-compat-task.patch