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

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Date:   Thu, 07 Jun 2018 15:05:21 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Johan Hovold" <johan@...nel.org>
Subject: [PATCH 3.16 152/410] USB: serial: add support for multi-port
 simple drivers

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

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

From: Johan Hovold <johan@...nel.org>

commit b9f040389e23fb95fde36cb0a3c2c516fb3e9d1c upstream.

Add support for multi-port simple drivers.

Signed-off-by: Johan Hovold <johan@...nel.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 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()			\