linux-kernel - [PATCH 5/6] staging: kpc2000: kpc_i2c: Remove unnecessary function tracing prints

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Date:   Wed, 22 May 2019 12:14:01 +0000
From:   Geordan Neukum <gneukum1@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Cc:     Matt Sickler <Matt.Sickler@...tronics.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Geordan Neukum <gneukum1@...il.com>
Subject: [PATCH 5/6] staging: kpc2000: kpc_i2c: Remove unnecessary function tracing prints

Many of the functions in kpc_i2c log debug-level messages to the
kernel log message buffer upon invocation. This is unnecessary, as
debugging tools like kgdb, kdb, etc. or the tracing tool ftrace
should be able to provide this same information. Therefore, remove
these print statements.

Signed-off-by: Geordan Neukum <gneukum1@...il.com>
---
 drivers/staging/kpc2000/kpc2000_i2c.c | 26 --------------------------
 1 file changed, 26 deletions(-)

diff --git a/drivers/staging/kpc2000/kpc2000_i2c.c b/drivers/staging/kpc2000/kpc2000_i2c.c
index 5d98ed54c05c..f9259c06b605 100644
--- a/drivers/staging/kpc2000/kpc2000_i2c.c
+++ b/drivers/staging/kpc2000/kpc2000_i2c.c
@@ -139,8 +139,6 @@ static int i801_check_pre(struct i2c_device *priv)
 {
 	int status;
 
-	dev_dbg(&priv->adapter.dev, "%s\n", __func__);
-
 	status = inb_p(SMBHSTSTS(priv));
 	if (status & SMBHSTSTS_HOST_BUSY) {
 		dev_err(&priv->adapter.dev, "SMBus is busy, can't use it! (status=%x)\n", status);
@@ -165,8 +163,6 @@ static int i801_check_post(struct i2c_device *priv, int status, int timeout)
 {
 	int result = 0;
 
-	dev_dbg(&priv->adapter.dev, "%s\n", __func__);
-
 	/* If the SMBus is still busy, we give up */
 	if (timeout) {
 		dev_err(&priv->adapter.dev, "Transaction timeout\n");
@@ -214,8 +210,6 @@ static int i801_transaction(struct i2c_device *priv, int xact)
 	int result;
 	int timeout = 0;
 
-	dev_dbg(&priv->adapter.dev, "%s\n", __func__);
-
 	result = i801_check_pre(priv);
 	if (result < 0)
 		return result;
@@ -244,8 +238,6 @@ static void i801_wait_hwpec(struct i2c_device *priv)
 	int timeout = 0;
 	int status;
 
-	dev_dbg(&priv->adapter.dev, "%s\n", __func__);
-
 	do {
 		usleep_range(250, 500);
 		status = inb_p(SMBHSTSTS(priv));
@@ -262,8 +254,6 @@ static int i801_block_transaction_by_block(struct i2c_device *priv, union i2c_sm
 	int i, len;
 	int status;
 
-	dev_dbg(&priv->adapter.dev, "%s\n", __func__);
-
 	inb_p(SMBHSTCNT(priv)); /* reset the data buffer index */
 
 	/* Use 32-byte buffer to process this transaction */
@@ -298,8 +288,6 @@ static int i801_block_transaction_byte_by_byte(struct i2c_device *priv, union i2
 	int result;
 	int timeout;
 
-	dev_dbg(&priv->adapter.dev, "%s\n", __func__);
-
 	result = i801_check_pre(priv);
 	if (result < 0)
 		return result;
@@ -364,8 +352,6 @@ static int i801_block_transaction_byte_by_byte(struct i2c_device *priv, union i2
 
 static int i801_set_block_buffer_mode(struct i2c_device *priv)
 {
-	dev_dbg(&priv->adapter.dev, "%s\n", __func__);
-
 	outb_p(inb_p(SMBAUXCTL(priv)) | SMBAUXCTL_E32B, SMBAUXCTL(priv));
 	if ((inb_p(SMBAUXCTL(priv)) & SMBAUXCTL_E32B) == 0)
 		return -EIO;
@@ -378,8 +364,6 @@ static int i801_block_transaction(struct i2c_device *priv, union i2c_smbus_data
 	int result = 0;
 	//unsigned char hostc;
 
-	dev_dbg(&priv->adapter.dev, "%s\n", __func__);
-
 	if (command == I2C_SMBUS_I2C_BLOCK_DATA) {
 		if (read_write == I2C_SMBUS_WRITE) {
 			/* set I2C_EN bit in configuration register */
@@ -427,10 +411,6 @@ static s32 i801_access(struct i2c_adapter *adap, u16 addr, unsigned short flags,
 	int ret, xact = 0;
 	struct i2c_device *priv = i2c_get_adapdata(adap);
 
-	dev_dbg(&priv->adapter.dev,
-		"%s (addr=%0d)  flags=%x  read_write=%x  command=%x  size=%x",
-		__func__, addr, flags, read_write, command, size);
-
 	hwpec = (priv->features & FEATURE_SMBUS_PEC) && (flags & I2C_CLIENT_PEC) && size != I2C_SMBUS_QUICK && size != I2C_SMBUS_I2C_BLOCK_DATA;
 
 	switch (size) {
@@ -605,9 +585,6 @@ int pi2c_probe(struct platform_device *pldev)
 	struct i2c_device *priv;
 	struct resource *res;
 
-	dev_dbg(&pldev->dev, "%s(pldev = %p '%s')\n", __func__, pldev,
-		pldev->name);
-
 	priv = devm_kzalloc(&pldev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
@@ -653,9 +630,6 @@ int pi2c_remove(struct platform_device *pldev)
 {
 	struct i2c_device *lddev;
 
-	dev_dbg(&pldev->dev, "%s(pldev = %p '%s')\n", __func__, pldev,
-		pldev->name);
-
 	lddev = (struct i2c_device *)pldev->dev.platform_data;
 
 	i2c_del_adapter(&lddev->adapter);
-- 
2.21.0