linux-kernel - [PATCH 1/2] HID: i2c-hid: switch to standard debugging APIs

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Message-Id: <20221223-hid-dbg-v1-1-f641e80263eb@weissschuh.net>
Date:   Fri, 23 Dec 2022 02:53:34 +0000
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH 1/2] HID: i2c-hid: switch to standard debugging APIs

Instead of implementing a custom form of dynamic debugging we can use
the standard debugging APIs. If the kernel is built with
CONFIG_DYNAMIC_DEBUG this will be more discoverable and featureful.

Also the previous module parameter "debug" is read-only so it can't
actually be enabled.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 drivers/hid/i2c-hid/i2c-hid-core.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c
index b86b62f97108..b4ed21f25600 100644
--- a/drivers/hid/i2c-hid/i2c-hid-core.c
+++ b/drivers/hid/i2c-hid/i2c-hid-core.c
@@ -67,16 +67,7 @@
 #define I2C_HID_PWR_ON		0x00
 #define I2C_HID_PWR_SLEEP	0x01
 
-/* debug option */
-static bool debug;
-module_param(debug, bool, 0444);
-MODULE_PARM_DESC(debug, "print a lot of debug information");
-
-#define i2c_hid_dbg(ihid, fmt, arg...)					  \
-do {									  \
-	if (debug)							  \
-		dev_printk(KERN_DEBUG, &(ihid)->client->dev, fmt, ##arg); \
-} while (0)
+#define i2c_hid_dbg(ihid, ...) dev_dbg(&(ihid)->client->dev, __VA_ARGS__)
 
 struct i2c_hid_desc {
 	__le16 wHIDDescLength;

-- 
2.39.0