media: rc-loopback: use dev_dbg() rather than handrolled debug

Make use of dynamic debug.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/rc/rc-loopback.c b/drivers/media/rc/rc-loopback.c
index 40ab66c..5adfbb6 100644 (file)
--- a/drivers/media/rc/rc-loopback.c
+++ b/drivers/media/rc/rc-loopback.c
@@ -16,12 +16,9 @@
 #include <media/rc-core.h>
 
 #define DRIVER_NAME    "rc-loopback"
-#define dprintk(x...)  if (debug) printk(KERN_INFO DRIVER_NAME ": " x)
 #define RXMASK_REGULAR 0x1
 #define RXMASK_LEARNING        0x2
 
-static bool debug;
-
 struct loopback_dev {
        struct rc_dev *dev;
        u32 txmask;
@@ -41,11 +38,11 @@ static int loop_set_tx_mask(struct rc_dev *dev, u32 mask)
        struct loopback_dev *lodev = dev->priv;
 
        if ((mask & (RXMASK_REGULAR | RXMASK_LEARNING)) != mask) {
-               dprintk("invalid tx mask: %u\n", mask);
+               dev_dbg(&dev->dev, "invalid tx mask: %u\n", mask);
                return 2;
        }
 
-       dprintk("setting tx mask: %u\n", mask);
+       dev_dbg(&dev->dev, "setting tx mask: %u\n", mask);
        lodev->txmask = mask;
        return 0;
 }
@@ -54,7 +51,7 @@ static int loop_set_tx_carrier(struct rc_dev *dev, u32 carrier)
 {
        struct loopback_dev *lodev = dev->priv;
 
-       dprintk("setting tx carrier: %u\n", carrier);
+       dev_dbg(&dev->dev, "setting tx carrier: %u\n", carrier);
        lodev->txcarrier = carrier;
        return 0;
 }
@@ -64,11 +61,11 @@ static int loop_set_tx_duty_cycle(struct rc_dev *dev, u32 duty_cycle)
        struct loopback_dev *lodev = dev->priv;
 
        if (duty_cycle < 1 || duty_cycle > 99) {
-               dprintk("invalid duty cycle: %u\n", duty_cycle);
+               dev_dbg(&dev->dev, "invalid duty cycle: %u\n", duty_cycle);
                return -EINVAL;
        }
 
-       dprintk("setting duty cycle: %u\n", duty_cycle);
+       dev_dbg(&dev->dev, "setting duty cycle: %u\n", duty_cycle);
        lodev->txduty = duty_cycle;
        return 0;
 }
@@ -78,11 +75,11 @@ static int loop_set_rx_carrier_range(struct rc_dev *dev, u32 min, u32 max)
        struct loopback_dev *lodev = dev->priv;
 
        if (min < 1 || min > max) {
-               dprintk("invalid rx carrier range %u to %u\n", min, max);
+               dev_dbg(&dev->dev, "invalid rx carrier range %u to %u\n", min, max);
                return -EINVAL;
        }
 
-       dprintk("setting rx carrier range %u to %u\n", min, max);
+       dev_dbg(&dev->dev, "setting rx carrier range %u to %u\n", min, max);
        lodev->rxcarriermin = min;
        lodev->rxcarriermax = max;
        return 0;
@@ -97,7 +94,7 @@ static int loop_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
 
        if (lodev->txcarrier < lodev->rxcarriermin ||
            lodev->txcarrier > lodev->rxcarriermax) {
-               dprintk("ignoring tx, carrier out of range\n");
+               dev_dbg(&dev->dev, "ignoring tx, carrier out of range\n");
                goto out;
        }
 
@@ -107,7 +104,7 @@ static int loop_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
                rxmask = RXMASK_REGULAR;
 
        if (!(rxmask & lodev->txmask)) {
-               dprintk("ignoring tx, rx mask mismatch\n");
+               dev_dbg(&dev->dev, "ignoring tx, rx mask mismatch\n");
                goto out;
        }
 
@@ -134,7 +131,7 @@ static void loop_set_idle(struct rc_dev *dev, bool enable)
        struct loopback_dev *lodev = dev->priv;
 
        if (lodev->idle != enable) {
-               dprintk("%sing idle mode\n", enable ? "enter" : "exit");
+               dev_dbg(&dev->dev, "%sing idle mode\n", enable ? "enter" : "exit");
                lodev->idle = enable;
        }
 }
@@ -144,7 +141,7 @@ static int loop_set_learning_mode(struct rc_dev *dev, int enable)
        struct loopback_dev *lodev = dev->priv;
 
        if (lodev->learning != enable) {
-               dprintk("%sing learning mode\n", enable ? "enter" : "exit");
+               dev_dbg(&dev->dev, "%sing learning mode\n", enable ? "enter" : "exit");
                lodev->learning = !!enable;
        }
 
@@ -156,7 +153,7 @@ static int loop_set_carrier_report(struct rc_dev *dev, int enable)
        struct loopback_dev *lodev = dev->priv;
 
        if (lodev->carrierreport != enable) {
-               dprintk("%sabling carrier reports\n", enable ? "en" : "dis");
+               dev_dbg(&dev->dev, "%sabling carrier reports\n", enable ? "en" : "dis");
                lodev->carrierreport = !!enable;
        }
 
@@ -204,10 +201,8 @@ static int __init loop_init(void)
        int ret;
 
        rc = rc_allocate_device(RC_DRIVER_IR_RAW);
-       if (!rc) {
-               printk(KERN_ERR DRIVER_NAME ": rc_dev allocation failed\n");
+       if (!rc)
                return -ENOMEM;
-       }
 
        rc->device_name         = "rc-core loopback device";
        rc->input_phys          = "rc-core/virtual";
@@ -245,7 +240,7 @@ static int __init loop_init(void)
 
        ret = rc_register_device(rc);
        if (ret < 0) {
-               printk(KERN_ERR DRIVER_NAME ": rc_dev registration failed\n");
+               dev_err(&rc->dev, "rc_dev registration failed\n");
                rc_free_device(rc);
                return ret;
        }
@@ -262,9 +257,6 @@ static void __exit loop_exit(void)
 module_init(loop_init);
 module_exit(loop_exit);
 
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Enable debug messages");
-
 MODULE_DESCRIPTION("Loopback device for rc-core debugging");
 MODULE_AUTHOR("David Härdeman <david@hardeman.nu>");
 MODULE_LICENSE("GPL");