linux-kernel - [PATCH 3.16 167/328] USB: serial: ti_usb_3410

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Message-ID: <lsq.1544392233.89826192@decadent.org.uk>
Date:   Sun, 09 Dec 2018 21:50:33 +0000
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>,
        "Mathieu OTHACEHE" <m.othacehe@...il.com>
Subject: [PATCH 3.16 167/328] USB: serial: ti_usb_3410_5052: use functions
 rather than macros

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

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

From: Mathieu OTHACEHE <m.othacehe@...il.com>

commit d8d841e8332779fae2b18420d39ef407ea3729da upstream.

Functions are preferable to macros resembling functions.

Signed-off-by: Mathieu OTHACEHE <m.othacehe@...il.com>
[johan: drop inline keyword, move above calling function ]
Signed-off-by: Johan Hovold <johan@...nel.org>
[bwh: Backported to 3.16: adjust filename]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -925,6 +925,15 @@ static void ti_break(struct tty_struct *
 		dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status);
 }
 
+static int ti_get_port_from_code(unsigned char code)
+{
+	return (code >> 4) - 3;
+}
+
+static int ti_get_func_from_code(unsigned char code)
+{
+	return code & 0x0f;
+}
 
 static void ti_interrupt_callback(struct urb *urb)
 {
@@ -966,8 +975,8 @@ static void ti_interrupt_callback(struct
 		goto exit;
 	}
 
-	port_number = TI_GET_PORT_FROM_CODE(data[0]);
-	function = TI_GET_FUNC_FROM_CODE(data[0]);
+	port_number = ti_get_port_from_code(data[0]);
+	function = ti_get_func_from_code(data[0]);
 
 	dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n",
 		__func__, port_number, function, data[1]);
--- a/drivers/usb/serial/ti_usb_3410_5052.h
+++ b/drivers/usb/serial/ti_usb_3410_5052.h
@@ -227,8 +227,6 @@ struct ti_interrupt {
 } __attribute__((packed));
 
 /* Interrupt codes */
-#define TI_GET_PORT_FROM_CODE(c)	(((c) >> 4) - 3)
-#define TI_GET_FUNC_FROM_CODE(c)	((c) & 0x0f)
 #define TI_CODE_HARDWARE_ERROR		0xFF
 #define TI_CODE_DATA_ERROR		0x03
 #define TI_CODE_MODEM_STATUS		0x04