Merge branch 'for-5.17/core' into for-linus

- support for USI style pens (Tero Kristo, Mika Westerberg)
- quirk for devices that need inverted X/Y axes (Alistair Francis)
- small core code cleanups and deduplication (Benjamin Tissoires)

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index fb8cc9642ac4..92138ac2a4e2 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3985,6 +3985,10 @@ static long btrfs_ioctl_balance(struct file *file, void __user *arg)
 	bool need_unlock; /* for mut. excl. ops lock */
 	int ret;
 
+	if (!arg)
+		btrfs_warn(fs_info,
+	"IOC_BALANCE ioctl (v1) is deprecated and will be removed in kernel 5.18");
+
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;