[PATCH RFC] USB: cdc-acm: Fix bit overlap and move quirk definitions to header

[Wentao Guan]

The VENDOR_CLASS_DATA_IFACE and ALWAYS_POLL_CTRL quirk flags added in
commit f58752ebcb35 ("USB: cdc-acm: Add quirks for Yoga Book 9 14IAH10
INGENIC touchscreen") were placed inside the acm_ctrl_msg() function
rather than in the header with the other quirk flags.  Then, their
values (BIT(9) and BIT(10)) collided with NO_UNION_12 which is already
BIT(9).

Move the definitions to drivers/usb/class/cdc-acm.h where they belong
and shift them to BIT(10) and BIT(11) to avoid the overlap.

Fixes: f58752ebcb35 ("USB: cdc-acm: Add quirks for Yoga Book 9 14IAH10 INGENIC touchscreen")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Wentao Guan <guanwentao@xxxxxxxxxxxxx>
---
 drivers/usb/class/cdc-acm.c | 2 --
 drivers/usb/class/cdc-acm.h | 2 ++
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index c024011dc336a..d64751c42c2bc 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -114,8 +114,6 @@ static int acm_ctrl_msg(struct acm *acm, int request, int value,
 	int retval;
 
 	retval = usb_autopm_get_interface(acm->control);
-#define VENDOR_CLASS_DATA_IFACE		BIT(9)  /* data interface uses vendor-specific class */
-#define ALWAYS_POLL_CTRL		BIT(10) /* keep ctrl URB active even without an open TTY */
 	if (retval)
 		return retval;
 
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index 25fd5329a8781..01f448a783c03 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -115,3 +115,5 @@ struct acm {
 #define DISABLE_ECHO			BIT(7)
 #define MISSING_CAP_BRK			BIT(8)
 #define NO_UNION_12			BIT(9)
+#define VENDOR_CLASS_DATA_IFACE		BIT(10)  /* data interface uses vendor-specific class */
+#define ALWAYS_POLL_CTRL		BIT(11) /* keep ctrl URB active even without an open TTY */
-- 
2.30.2