[PATCH 3.16 152/410] USB: serial: add support for multi-port simple drivers

From: Ben Hutchings
Date: Thu Jun 07 2018 - 12:02:00 EST


3.16.57-rc1 review patch. If anyone has any objections, please let me know.

------------------

From: Johan Hovold <johan@xxxxxxxxxx>

commit b9f040389e23fb95fde36cb0a3c2c516fb3e9d1c upstream.

Add support for multi-port simple drivers.

Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
drivers/usb/serial/usb-serial-simple.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/usb/serial/usb-serial-simple.c
+++ b/drivers/usb/serial/usb-serial-simple.c
@@ -20,7 +20,7 @@
#include <linux/usb.h>
#include <linux/usb/serial.h>

-#define DEVICE(vendor, IDS) \
+#define DEVICE_N(vendor, IDS, nport) \
static const struct usb_device_id vendor##_id_table[] = { \
IDS(), \
{ }, \
@@ -31,9 +31,10 @@ static struct usb_serial_driver vendor##
.name = #vendor, \
}, \
.id_table = vendor##_id_table, \
- .num_ports = 1, \
+ .num_ports = nport, \
};

+#define DEVICE(vendor, IDS) DEVICE_N(vendor, IDS, 1)

/* ZIO Motherboard USB driver */
#define ZIO_IDS() \