[PATCH 0/6] staging: pi433: pi433_if.c: coding style fixes

[PATCH 0/6] staging: pi433: pi433_if.c: coding style fixes

[Chase Metzger]

Fixes some of the coding style violations to comply with the kernel
coding style.

Chase Metzger (6):
  staging: pi433: pi433_if.c: fix opening curly brace coding style
    issues
  staging: pi433: pi433_if.c: fix else if/else statements coding style
    issues
  staging: pi433: pi433_if.c: fix trailing statement coding style issues
  staging: pi433: pi433_if.c: fix space prohibited coding style issues
  staging: pi433: pi433_if.c: fix space(s) required coding style issues
  staging: pi433: pi433_if.c: use tabs instead of spaces

 drivers/staging/pi433/pi433_if.c | 203 +++++++++++++++++----------------------
 1 file changed, 87 insertions(+), 116 deletions(-)

-- 
2.11.0

[PATCH 1/6] staging: pi433: pi433_if.c: fix opening curly brace coding style issues

[Chase Metzger]

Put opening curly braces for if/else/else if statements and for/while loops
on the same line as the statements or loops to comply with the kernel
coding style.

Signed-off-by: Chase Metzger <chasemetzger15@gmail.com>
---
 drivers/staging/pi433/pi433_if.c | 110 ++++++++++++++-------------------------
 1 file changed, 38 insertions(+), 72 deletions(-)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index ff86db1c6cbd..76d70345229a 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -153,12 +153,10 @@ static irqreturn_t DIO1_irq_handler(int irq, void *dev_id)
 {
 	struct pi433_device *device = dev_id;
 
-	if      (device->irq_state[DIO1] == DIO_FifoNotEmpty_DIO1)
-	{
+	if      (device->irq_state[DIO1] == DIO_FifoNotEmpty_DIO1) {
 		device->free_in_fifo = FIFO_SIZE;
 	}
-	else if (device->irq_state[DIO1] == DIO_FifoLevel)
-	{
+	else if (device->irq_state[DIO1] == DIO_FifoLevel) {
 		if (device->rx_active)	device->free_in_fifo = FIFO_THRESHOLD - 1;
 		else			device->free_in_fifo = FIFO_SIZE - FIFO_THRESHOLD - 1;
 	}
@@ -193,12 +191,10 @@ rf69_set_rx_cfg(struct pi433_device *dev, struct pi433_rx_cfg *rx_cfg)
 	/* packet config */
 	/* enable */
 	SET_CHECKED(rf69_set_sync_enable(dev->spi, rx_cfg->enable_sync));
-	if (rx_cfg->enable_sync == optionOn)
-	{
+	if (rx_cfg->enable_sync == optionOn) {
 		SET_CHECKED(rf69_set_fifo_fill_condition(dev->spi, afterSyncInterrupt));
 	}
-	else
-	{
+	else {
 		SET_CHECKED(rf69_set_fifo_fill_condition(dev->spi, always));
 	}
 	if (rx_cfg->enable_length_byte == optionOn) {
@@ -215,29 +211,24 @@ rf69_set_rx_cfg(struct pi433_device *dev, struct pi433_rx_cfg *rx_cfg)
 
 	/* lengths */
 	SET_CHECKED(rf69_set_sync_size(dev->spi, rx_cfg->sync_length));
-	if (rx_cfg->enable_length_byte == optionOn)
-	{
+	if (rx_cfg->enable_length_byte == optionOn) {
 		SET_CHECKED(rf69_set_payload_length(dev->spi, 0xff));
 	}
-	else if (rx_cfg->fixed_message_length != 0)
-	{
+	else if (rx_cfg->fixed_message_length != 0) {
 		payload_length = rx_cfg->fixed_message_length;
 		if (rx_cfg->enable_length_byte  == optionOn) payload_length++;
 		if (rx_cfg->enable_address_filtering != filteringOff) payload_length++;
 		SET_CHECKED(rf69_set_payload_length(dev->spi, payload_length));
 	}
-	else
-	{
+	else {
 		SET_CHECKED(rf69_set_payload_length(dev->spi, 0));
 	}
 
 	/* values */
-	if (rx_cfg->enable_sync == optionOn)
-	{
+	if (rx_cfg->enable_sync == optionOn) {
 		SET_CHECKED(rf69_set_sync_values(dev->spi, rx_cfg->sync_pattern));
 	}
-	if (rx_cfg->enable_address_filtering != filteringOff)
-	{
+	if (rx_cfg->enable_address_filtering != filteringOff) {
 		SET_CHECKED(rf69_set_node_address     (dev->spi, rx_cfg->node_address));
 		SET_CHECKED(rf69_set_broadcast_address(dev->spi, rx_cfg->broadcast_address));
 	}
@@ -259,12 +250,10 @@ rf69_set_tx_cfg(struct pi433_device *dev, struct pi433_tx_cfg *tx_cfg)
 	SET_CHECKED(rf69_set_tx_start_condition(dev->spi, tx_cfg->tx_start_condition));
 
 	/* packet format enable */
-	if (tx_cfg->enable_preamble == optionOn)
-	{
+	if (tx_cfg->enable_preamble == optionOn) {
 		SET_CHECKED(rf69_set_preamble_length(dev->spi, tx_cfg->preamble_length));
 	}
-	else
-	{
+	else {
 		SET_CHECKED(rf69_set_preamble_length(dev->spi, 0));
 	}
 	SET_CHECKED(rf69_set_sync_enable  (dev->spi, tx_cfg->enable_sync));
@@ -336,8 +325,7 @@ pi433_receive(void *data)
 	/* wait for any tx to finish */
 	dev_dbg(dev->dev,"rx: going to wait for any tx to finish");
 	retval = wait_event_interruptible(dev->rx_wait_queue, !dev->tx_active);
-	if(retval) /* wait was interrupted */
-	{
+	if(retval) { /* wait was interrupted */
 		dev->interrupt_rx_allowed = true;
 		wake_up_interruptible(&dev->tx_wait_queue);
 		return retval;
@@ -354,8 +342,7 @@ pi433_receive(void *data)
 		return retval;
 
 	/* now check RSSI, if low wait for getting high (RSSI interrupt) */
-	while ( !rf69_get_flag(dev->spi, rssiExceededThreshold) )
-	{
+	while ( !rf69_get_flag(dev->spi, rssiExceededThreshold) ) {
 		/* allow tx to interrupt us while waiting for high RSSI */
 		dev->interrupt_rx_allowed = true;
 		wake_up_interruptible(&dev->tx_wait_queue);
@@ -378,25 +365,21 @@ pi433_receive(void *data)
 	irq_set_irq_type(dev->irq_num[DIO0], IRQ_TYPE_EDGE_RISING);
 
 	/* fixed or unlimited length? */
-	if (dev->rx_cfg.fixed_message_length != 0)
-	{
-		if (dev->rx_cfg.fixed_message_length > dev->rx_buffer_size)
-		{
+	if (dev->rx_cfg.fixed_message_length != 0) {
+		if (dev->rx_cfg.fixed_message_length > dev->rx_buffer_size) {
 			retval = -1;
 			goto abort;
 		}
 		bytes_total = dev->rx_cfg.fixed_message_length;
 		dev_dbg(dev->dev,"rx: msg len set to %d by fixed length", bytes_total);
 	}
-	else
-	{
+	else {
 		bytes_total = dev->rx_buffer_size;
 		dev_dbg(dev->dev, "rx: msg len set to %d as requested by read", bytes_total);
 	}
 
 	/* length byte enabled? */
-	if (dev->rx_cfg.enable_length_byte == optionOn)
-	{
+	if (dev->rx_cfg.enable_length_byte == optionOn) {
 		retval = wait_event_interruptible(dev->fifo_wait_queue,
 						  dev->free_in_fifo < FIFO_SIZE);
 		if (retval) goto abort; /* wait was interrupted */
@@ -411,8 +394,7 @@ pi433_receive(void *data)
 	}
 
 	/* address byte enabled? */
-	if (dev->rx_cfg.enable_address_filtering != filteringOff)
-	{
+	if (dev->rx_cfg.enable_address_filtering != filteringOff) {
 		u8 dummy;
 
 		bytes_total--;
@@ -427,10 +409,8 @@ pi433_receive(void *data)
 	}
 
 	/* get payload */
-	while (dev->rx_position < bytes_total)
-	{
-		if ( !rf69_get_flag(dev->spi, payloadReady) )
-		{
+	while (dev->rx_position < bytes_total) {
+		if ( !rf69_get_flag(dev->spi, payloadReady) ) {
 			retval = wait_event_interruptible(dev->fifo_wait_queue,
 							  dev->free_in_fifo < FIFO_SIZE);
 			if (retval) goto abort; /* wait was interrupted */
@@ -484,8 +464,7 @@ pi433_tx_thread(void *data)
 	int    position, repetitions;
 	int    retval;
 
-	while (1)
-	{
+	while (1) {
 		/* wait for fifo to be populated or for request to terminate*/
 		dev_dbg(device->dev, "thread: going to wait for new messages");
 		wait_event_interruptible(device->tx_wait_queue,
@@ -560,8 +539,7 @@ pi433_tx_thread(void *data)
 		disable_irq(device->irq_num[DIO0]);
 		device->tx_active = true;
 
-		if (device->rx_active && rx_interrupted == false)
-		{
+		if (device->rx_active && rx_interrupted == false) {
 			/* rx is currently waiting for a telegram;
 			 * we need to set the radio module to standby
 			 */
@@ -572,12 +550,10 @@ pi433_tx_thread(void *data)
 		/* clear fifo, set fifo threshold, set payload length */
 		SET_CHECKED(rf69_set_mode(spi, standby)); /* this clears the fifo */
 		SET_CHECKED(rf69_set_fifo_threshold(spi, FIFO_THRESHOLD));
-		if (tx_cfg.enable_length_byte == optionOn)
-		{
+		if (tx_cfg.enable_length_byte == optionOn) {
 			SET_CHECKED(rf69_set_payload_length(spi, size * tx_cfg.repetitions));
 		}
-		else
-		{
+		else {
 			SET_CHECKED(rf69_set_payload_length(spi, 0));
 		}
 
@@ -602,10 +578,9 @@ pi433_tx_thread(void *data)
 		device->free_in_fifo = FIFO_SIZE;
 		position = 0;
 		repetitions = tx_cfg.repetitions;
-		while( (repetitions > 0) && (size > position) )
-		{
-			if ( (size - position) > device->free_in_fifo)
-			{	/* msg to big for fifo - take a part */
+		while( (repetitions > 0) && (size > position) ) {
+			if ( (size - position) > device->free_in_fifo) {
+				/* msg to big for fifo - take a part */
 				int temp = device->free_in_fifo;
 				device->free_in_fifo = 0;
 				rf69_write_fifo(spi,
@@ -613,8 +588,8 @@ pi433_tx_thread(void *data)
 				                temp);
 				position +=temp;
 			}
-			else
-			{	/* msg fits into fifo - take all */
+			else {
+				/* msg fits into fifo - take all */
 				device->free_in_fifo -= size;
 				repetitions--;
 				rf69_write_fifo(spi,
@@ -643,8 +618,7 @@ pi433_tx_thread(void *data)
 		/* everything sent? */
 		if (kfifo_is_empty(&device->tx_fifo)) {
 abort:
-			if (rx_interrupted)
-			{
+			if (rx_interrupted) {
 				rx_interrupted = false;
 				pi433_start_rx(device);
 			}
@@ -673,13 +647,11 @@ pi433_read(struct file *filp, char __user *buf, size_t size, loff_t *f_pos)
 
 	/* just one read request at a time */
 	mutex_lock(&device->rx_lock);
-	if (device->rx_active)
-	{
+	if (device->rx_active) {
 		mutex_unlock(&device->rx_lock);
 		return -EAGAIN;
 	}
-	else
-	{
+	else {
 		device->rx_active = true;
 		mutex_unlock(&device->rx_lock);
 	}
@@ -904,8 +876,7 @@ static int setup_GPIOs(struct pi433_device *device)
 		DIO1_irq_handler
 	};
 
-	for (i=0; i<NUM_DIO; i++)
-	{
+	for (i=0; i<NUM_DIO; i++) {
 		/* "construct" name and get the gpio descriptor */
 		snprintf(name, sizeof(name), "DIO%d", i);
 		device->gpiod[i] = gpiod_get(&device->spi->dev, name, 0 /*GPIOD_IN*/);
@@ -918,12 +889,10 @@ static int setup_GPIOs(struct pi433_device *device)
 		if (device->gpiod[i] == ERR_PTR(-EBUSY))
 			dev_dbg(&device->spi->dev, "%s is busy.", name);
 
-		if ( IS_ERR(device->gpiod[i]) )
-		{
+		if ( IS_ERR(device->gpiod[i]) ) {
 			retval = PTR_ERR(device->gpiod[i]);
 			/* release already allocated gpios */
-			for (i--; i>=0; i--)
-			{
+			for (i--; i>=0; i--) {
 				free_irq(device->irq_num[i], device);
 				gpiod_put(device->gpiod[i]);
 			}
@@ -962,8 +931,7 @@ static void free_GPIOs(struct pi433_device *device)
 {
 	int i;
 
-	for (i=0; i<NUM_DIO; i++)
-	{
+	for (i=0; i<NUM_DIO; i++) {
 		/* check if gpiod is valid */
 		if ( IS_ERR(device->gpiod[i]) )
 			continue;
@@ -1027,13 +995,11 @@ static int pi433_probe(struct spi_device *spi)
 	/* spi->max_speed_hz = 10000000;  1MHz already set by device tree overlay */
 
 	retval = spi_setup(spi);
-	if (retval)
-	{
+	if (retval) {
 		dev_dbg(&spi->dev, "configuration of SPI interface failed!\n");
 		return retval;
 	}
-	else
-	{
+	else {
 		dev_dbg(&spi->dev,
 			"spi interface setup: mode 0x%2x, %d bits per word, %dhz max speed",
 			spi->mode, spi->bits_per_word, spi->max_speed_hz);
-- 
2.11.0

[PATCH 2/6] staging: pi433: pi433_if.c: fix else if/else statements coding style issues

[Chase Metzger]

Put else if/else statements on same line as if/else if statements
closing curly brace to comply with the kernel coding style.

Signed-off-by: Chase Metzger <chasemetzger15@gmail.com>
---
 drivers/staging/pi433/pi433_if.c | 33 +++++++++++----------------------
 1 file changed, 11 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index 76d70345229a..cd1430a04928 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -155,8 +155,7 @@ static irqreturn_t DIO1_irq_handler(int irq, void *dev_id)
 
 	if      (device->irq_state[DIO1] == DIO_FifoNotEmpty_DIO1) {
 		device->free_in_fifo = FIFO_SIZE;
-	}
-	else if (device->irq_state[DIO1] == DIO_FifoLevel) {
+	} else if (device->irq_state[DIO1] == DIO_FifoLevel) {
 		if (device->rx_active)	device->free_in_fifo = FIFO_THRESHOLD - 1;
 		else			device->free_in_fifo = FIFO_SIZE - FIFO_THRESHOLD - 1;
 	}
@@ -193,8 +192,7 @@ rf69_set_rx_cfg(struct pi433_device *dev, struct pi433_rx_cfg *rx_cfg)
 	SET_CHECKED(rf69_set_sync_enable(dev->spi, rx_cfg->enable_sync));
 	if (rx_cfg->enable_sync == optionOn) {
 		SET_CHECKED(rf69_set_fifo_fill_condition(dev->spi, afterSyncInterrupt));
-	}
-	else {
+	} else {
 		SET_CHECKED(rf69_set_fifo_fill_condition(dev->spi, always));
 	}
 	if (rx_cfg->enable_length_byte == optionOn) {
@@ -213,14 +211,12 @@ rf69_set_rx_cfg(struct pi433_device *dev, struct pi433_rx_cfg *rx_cfg)
 	SET_CHECKED(rf69_set_sync_size(dev->spi, rx_cfg->sync_length));
 	if (rx_cfg->enable_length_byte == optionOn) {
 		SET_CHECKED(rf69_set_payload_length(dev->spi, 0xff));
-	}
-	else if (rx_cfg->fixed_message_length != 0) {
+	} else if (rx_cfg->fixed_message_length != 0) {
 		payload_length = rx_cfg->fixed_message_length;
 		if (rx_cfg->enable_length_byte  == optionOn) payload_length++;
 		if (rx_cfg->enable_address_filtering != filteringOff) payload_length++;
 		SET_CHECKED(rf69_set_payload_length(dev->spi, payload_length));
-	}
-	else {
+	} else {
 		SET_CHECKED(rf69_set_payload_length(dev->spi, 0));
 	}
 
@@ -252,8 +248,7 @@ rf69_set_tx_cfg(struct pi433_device *dev, struct pi433_tx_cfg *tx_cfg)
 	/* packet format enable */
 	if (tx_cfg->enable_preamble == optionOn) {
 		SET_CHECKED(rf69_set_preamble_length(dev->spi, tx_cfg->preamble_length));
-	}
-	else {
+	} else {
 		SET_CHECKED(rf69_set_preamble_length(dev->spi, 0));
 	}
 	SET_CHECKED(rf69_set_sync_enable  (dev->spi, tx_cfg->enable_sync));
@@ -372,8 +367,7 @@ pi433_receive(void *data)
 		}
 		bytes_total = dev->rx_cfg.fixed_message_length;
 		dev_dbg(dev->dev,"rx: msg len set to %d by fixed length", bytes_total);
-	}
-	else {
+	} else {
 		bytes_total = dev->rx_buffer_size;
 		dev_dbg(dev->dev, "rx: msg len set to %d as requested by read", bytes_total);
 	}
@@ -552,8 +546,7 @@ pi433_tx_thread(void *data)
 		SET_CHECKED(rf69_set_fifo_threshold(spi, FIFO_THRESHOLD));
 		if (tx_cfg.enable_length_byte == optionOn) {
 			SET_CHECKED(rf69_set_payload_length(spi, size * tx_cfg.repetitions));
-		}
-		else {
+		} else {
 			SET_CHECKED(rf69_set_payload_length(spi, 0));
 		}
 
@@ -587,8 +580,7 @@ pi433_tx_thread(void *data)
 				                &buffer[position],
 				                temp);
 				position +=temp;
-			}
-			else {
+			} else {
 				/* msg fits into fifo - take all */
 				device->free_in_fifo -= size;
 				repetitions--;
@@ -650,8 +642,7 @@ pi433_read(struct file *filp, char __user *buf, size_t size, loff_t *f_pos)
 	if (device->rx_active) {
 		mutex_unlock(&device->rx_lock);
 		return -EAGAIN;
-	}
-	else {
+	} else {
 		device->rx_active = true;
 		mutex_unlock(&device->rx_lock);
 	}
@@ -998,8 +989,7 @@ static int pi433_probe(struct spi_device *spi)
 	if (retval) {
 		dev_dbg(&spi->dev, "configuration of SPI interface failed!\n");
 		return retval;
-	}
-	else {
+	} else {
 		dev_dbg(&spi->dev,
 			"spi interface setup: mode 0x%2x, %d bits per word, %dhz max speed",
 			spi->mode, spi->bits_per_word, spi->max_speed_hz);
@@ -1085,8 +1075,7 @@ static int pi433_probe(struct spi_device *spi)
 		pr_err("pi433: device register failed\n");
 		retval = PTR_ERR(device->dev);
 		goto device_create_failed;
-	}
-	else {
+	} else {
 		dev_dbg(device->dev,
 			"created device for major %d, minor %d\n",
 			MAJOR(pi433_dev),
-- 
2.11.0

[PATCH 3/6] staging: pi433: pi433_if.c: fix trailing statement coding style issues

[Chase Metzger]

Put trailing statement after if/else statements on new line to comply
with the kernel coding style.

Signed-off-by: Chase Metzger <chasemetzger15@gmail.com>
---
 drivers/staging/pi433/pi433_if.c | 44 +++++++++++++++++++++++++++-------------
 1 file changed, 30 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index cd1430a04928..3c5d8a05e976 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -156,8 +156,10 @@ static irqreturn_t DIO1_irq_handler(int irq, void *dev_id)
 	if      (device->irq_state[DIO1] == DIO_FifoNotEmpty_DIO1) {
 		device->free_in_fifo = FIFO_SIZE;
 	} else if (device->irq_state[DIO1] == DIO_FifoLevel) {
-		if (device->rx_active)	device->free_in_fifo = FIFO_THRESHOLD - 1;
-		else			device->free_in_fifo = FIFO_SIZE - FIFO_THRESHOLD - 1;
+		if (device->rx_active)
+			device->free_in_fifo = FIFO_THRESHOLD - 1;
+		else
+			device->free_in_fifo = FIFO_SIZE - FIFO_THRESHOLD - 1;
 	}
 	dev_dbg(device->dev,
 		"DIO1 irq: %d bytes free in fifo\n", device->free_in_fifo);
@@ -213,8 +215,10 @@ rf69_set_rx_cfg(struct pi433_device *dev, struct pi433_rx_cfg *rx_cfg)
 		SET_CHECKED(rf69_set_payload_length(dev->spi, 0xff));
 	} else if (rx_cfg->fixed_message_length != 0) {
 		payload_length = rx_cfg->fixed_message_length;
-		if (rx_cfg->enable_length_byte  == optionOn) payload_length++;
-		if (rx_cfg->enable_address_filtering != filteringOff) payload_length++;
+		if (rx_cfg->enable_length_byte  == optionOn)
+			payload_length++;
+		if (rx_cfg->enable_address_filtering != filteringOff)
+			payload_length++;
 		SET_CHECKED(rf69_set_payload_length(dev->spi, payload_length));
 	} else {
 		SET_CHECKED(rf69_set_payload_length(dev->spi, 0));
@@ -285,7 +289,8 @@ pi433_start_rx(struct pi433_device *dev)
 
 	/* setup for receiving */
 	retval = rf69_set_rx_cfg(dev, &dev->rx_cfg);
-	if (retval) return retval;
+	if (retval)
+		return retval;
 
 	/* setup rssi irq */
 	SET_CHECKED(rf69_set_dio_mapping(dev->spi, DIO0, DIO_Rssi_DIO0));
@@ -347,11 +352,13 @@ pi433_receive(void *data)
 		retval = wait_event_interruptible(dev->rx_wait_queue,
 			                          rf69_get_flag(dev->spi,
 		                                                rssiExceededThreshold));
-		if (retval) goto abort; /* wait was interrupted */
+		if (retval) /* wait was interrupted */
+			goto abort;
 		dev->interrupt_rx_allowed = false;
 
 		/* cross check for ongoing tx */
-		if (!dev->tx_active) break;
+		if (!dev->tx_active)
+			break;
 	}
 
 	/* configure payload ready irq */
@@ -376,7 +383,8 @@ pi433_receive(void *data)
 	if (dev->rx_cfg.enable_length_byte == optionOn) {
 		retval = wait_event_interruptible(dev->fifo_wait_queue,
 						  dev->free_in_fifo < FIFO_SIZE);
-		if (retval) goto abort; /* wait was interrupted */
+		if (retval) /* wait was interrupted */
+			goto abort;
 
 		rf69_read_fifo(spi, (u8 *)&bytes_total, 1);
 		if (bytes_total > dev->rx_buffer_size) {
@@ -395,7 +403,8 @@ pi433_receive(void *data)
 
 		retval = wait_event_interruptible(dev->fifo_wait_queue,
 						  dev->free_in_fifo < FIFO_SIZE);
-		if (retval) goto abort; /* wait was interrupted */
+		if (retval) /* wait was interrupted */
+			goto abort;
 
 		rf69_read_fifo(spi, &dummy, 1);
 		dev->free_in_fifo++;
@@ -407,7 +416,8 @@ pi433_receive(void *data)
 		if ( !rf69_get_flag(dev->spi, payloadReady) ) {
 			retval = wait_event_interruptible(dev->fifo_wait_queue,
 							  dev->free_in_fifo < FIFO_SIZE);
-			if (retval) goto abort; /* wait was interrupted */
+			if (retval) /* wait was interrupted */
+				goto abort;
 		}
 
 		/* need to drop bytes or acquire? */
@@ -423,7 +433,8 @@ pi433_receive(void *data)
 		retval = rf69_read_fifo(spi,
 					&dev->rx_buffer[dev->rx_position],
 					bytes_to_read);
-		if (retval) goto abort; /* read failed */
+		if (retval) /* read failed */
+			goto abort;
 		dev->free_in_fifo += bytes_to_read;
 
 		/* adjust status vars */
@@ -592,7 +603,10 @@ pi433_tx_thread(void *data)
 
 			retval = wait_event_interruptible(device->fifo_wait_queue,
 							  device->free_in_fifo > 0);
-			if (retval) { printk("ABORT\n"); goto abort; }
+			if (retval) {
+				printk("ABORT\n");
+				goto abort;
+			}
 		}
 
 		/* we are done. Wait for packet to get sent */
@@ -600,7 +614,8 @@ pi433_tx_thread(void *data)
 		wait_event_interruptible(device->fifo_wait_queue,
 					 device->free_in_fifo == FIFO_SIZE ||
 					 kthread_should_stop() );
-		if ( kthread_should_stop() )	printk("ABORT\n");
+		if ( kthread_should_stop() )
+			printk("ABORT\n");
 
 
 		/* STOP_TRANSMISSION */
@@ -894,7 +909,8 @@ static int setup_GPIOs(struct pi433_device *device)
 		/* configure the pin */
 		gpiod_unexport(device->gpiod[i]);
 		retval = gpiod_direction_input(device->gpiod[i]);
-		if (retval) return retval;
+		if (retval)
+			return retval;
 
 
 		/* configure irq */
-- 
2.11.0

[PATCH 4/6] staging: pi433: pi433_if.c: fix space prohibited coding style issues

[Chase Metzger]

Remove unnecessary spaces before and after parenthesis' to comply
with the kernel coding style.

Signed-off-by: Chase Metzger <chasemetzger15@gmail.com>
---
 drivers/staging/pi433/pi433_if.c | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index 3c5d8a05e976..ad89504655af 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -342,7 +342,7 @@ pi433_receive(void *data)
 		return retval;
 
 	/* now check RSSI, if low wait for getting high (RSSI interrupt) */
-	while ( !rf69_get_flag(dev->spi, rssiExceededThreshold) ) {
+	while (!rf69_get_flag(dev->spi, rssiExceededThreshold)) {
 		/* allow tx to interrupt us while waiting for high RSSI */
 		dev->interrupt_rx_allowed = true;
 		wake_up_interruptible(&dev->tx_wait_queue);
@@ -413,7 +413,7 @@ pi433_receive(void *data)
 
 	/* get payload */
 	while (dev->rx_position < bytes_total) {
-		if ( !rf69_get_flag(dev->spi, payloadReady) ) {
+		if (!rf69_get_flag(dev->spi, payloadReady)) {
 			retval = wait_event_interruptible(dev->fifo_wait_queue,
 							  dev->free_in_fifo < FIFO_SIZE);
 			if (retval) /* wait was interrupted */
@@ -473,9 +473,9 @@ pi433_tx_thread(void *data)
 		/* wait for fifo to be populated or for request to terminate*/
 		dev_dbg(device->dev, "thread: going to wait for new messages");
 		wait_event_interruptible(device->tx_wait_queue,
-					 ( !kfifo_is_empty(&device->tx_fifo) ||
-					    kthread_should_stop() ));
-		if ( kthread_should_stop() )
+					 (!kfifo_is_empty(&device->tx_fifo) ||
+					    kthread_should_stop()));
+		if (kthread_should_stop())
 			return 0;
 
 		/* get data from fifo in the following order:
@@ -487,14 +487,14 @@ pi433_tx_thread(void *data)
 
 		retval = kfifo_out(&device->tx_fifo, &tx_cfg, sizeof(tx_cfg));
 		if (retval != sizeof(tx_cfg)) {
-			dev_dbg(device->dev, "reading tx_cfg from fifo failed: got %d byte(s), expected %d", retval, (unsigned int)sizeof(tx_cfg) );
+			dev_dbg(device->dev, "reading tx_cfg from fifo failed: got %d byte(s), expected %d", retval, (unsigned int)sizeof(tx_cfg));
 			mutex_unlock(&device->tx_fifo_lock);
 			continue;
 		}
 
 		retval = kfifo_out(&device->tx_fifo, &size, sizeof(size_t));
 		if (retval != sizeof(size_t)) {
-			dev_dbg(device->dev, "reading msg size from fifo failed: got %d, expected %d", retval, (unsigned int)sizeof(size_t) );
+			dev_dbg(device->dev, "reading msg size from fifo failed: got %d, expected %d", retval, (unsigned int)sizeof(size_t));
 			mutex_unlock(&device->tx_fifo_lock);
 			continue;
 		}
@@ -524,7 +524,7 @@ pi433_tx_thread(void *data)
 			buffer[position++] = tx_cfg.address_byte;
 
 		/* finally get message data from fifo */
-		retval = kfifo_out(&device->tx_fifo, &buffer[position], sizeof(buffer)-position );
+		retval = kfifo_out(&device->tx_fifo, &buffer[position], sizeof(buffer)-position);
 		dev_dbg(device->dev, "read %d message byte(s) from fifo queue.", retval);
 		mutex_unlock(&device->tx_fifo_lock);
 
@@ -582,8 +582,8 @@ pi433_tx_thread(void *data)
 		device->free_in_fifo = FIFO_SIZE;
 		position = 0;
 		repetitions = tx_cfg.repetitions;
-		while( (repetitions > 0) && (size > position) ) {
-			if ( (size - position) > device->free_in_fifo) {
+		while((repetitions > 0) && (size > position)) {
+			if ((size - position) > device->free_in_fifo) {
 				/* msg to big for fifo - take a part */
 				int temp = device->free_in_fifo;
 				device->free_in_fifo = 0;
@@ -597,7 +597,7 @@ pi433_tx_thread(void *data)
 				repetitions--;
 				rf69_write_fifo(spi,
 						&buffer[position],
-						(size - position) );
+						(size - position));
 				position = 0; /* reset for next repetition */
 			}
 
@@ -613,8 +613,8 @@ pi433_tx_thread(void *data)
 		dev_dbg(device->dev, "thread: wait for packet to get sent/fifo to be empty");
 		wait_event_interruptible(device->fifo_wait_queue,
 					 device->free_in_fifo == FIFO_SIZE ||
-					 kthread_should_stop() );
-		if ( kthread_should_stop() )
+					 kthread_should_stop());
+		if (kthread_should_stop())
 			printk("ABORT\n");
 
 
@@ -705,11 +705,11 @@ pi433_write(struct file *filp, const char __user *buf,
 	 */
 	mutex_lock(&device->tx_fifo_lock);
 	retval = kfifo_in(&device->tx_fifo, &instance->tx_cfg, sizeof(instance->tx_cfg));
-	if ( retval != sizeof(instance->tx_cfg) )
+	if (retval != sizeof(instance->tx_cfg))
 		goto abort;
 
 	retval = kfifo_in (&device->tx_fifo, &count, sizeof(size_t));
-	if ( retval != sizeof(size_t) )
+	if (retval != sizeof(size_t))
 		goto abort;
 
 	retval = kfifo_from_user(&device->tx_fifo, buf, count, &copied);
@@ -895,7 +895,7 @@ static int setup_GPIOs(struct pi433_device *device)
 		if (device->gpiod[i] == ERR_PTR(-EBUSY))
 			dev_dbg(&device->spi->dev, "%s is busy.", name);
 
-		if ( IS_ERR(device->gpiod[i]) ) {
+		if (IS_ERR(device->gpiod[i])) {
 			retval = PTR_ERR(device->gpiod[i]);
 			/* release already allocated gpios */
 			for (i--; i>=0; i--) {
@@ -940,7 +940,7 @@ static void free_GPIOs(struct pi433_device *device)
 
 	for (i=0; i<NUM_DIO; i++) {
 		/* check if gpiod is valid */
-		if ( IS_ERR(device->gpiod[i]) )
+		if (IS_ERR(device->gpiod[i]))
 			continue;
 
 		free_irq(device->irq_num[i], device);
-- 
2.11.0

[PATCH 5/6] staging: pi433: pi433_if.c: fix space(s) required coding style issues

[Chase Metzger]

Put space(s) in required spots to comply with the kernel coding style.

Signed-off-by: Chase Metzger <chasemetzger15@gmail.com>
---
 drivers/staging/pi433/pi433_if.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index ad89504655af..ad99f6527bd6 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -323,9 +323,9 @@ pi433_receive(void *data)
 	dev->interrupt_rx_allowed = false;
 
 	/* wait for any tx to finish */
-	dev_dbg(dev->dev,"rx: going to wait for any tx to finish");
+	dev_dbg(dev->dev, "rx: going to wait for any tx to finish");
 	retval = wait_event_interruptible(dev->rx_wait_queue, !dev->tx_active);
-	if(retval) { /* wait was interrupted */
+	if (retval) { /* wait was interrupted */
 		dev->interrupt_rx_allowed = true;
 		wake_up_interruptible(&dev->tx_wait_queue);
 		return retval;
@@ -373,7 +373,7 @@ pi433_receive(void *data)
 			goto abort;
 		}
 		bytes_total = dev->rx_cfg.fixed_message_length;
-		dev_dbg(dev->dev,"rx: msg len set to %d by fixed length", bytes_total);
+		dev_dbg(dev->dev, "rx: msg len set to %d by fixed length", bytes_total);
 	} else {
 		bytes_total = dev->rx_buffer_size;
 		dev_dbg(dev->dev, "rx: msg len set to %d as requested by read", bytes_total);
@@ -582,7 +582,7 @@ pi433_tx_thread(void *data)
 		device->free_in_fifo = FIFO_SIZE;
 		position = 0;
 		repetitions = tx_cfg.repetitions;
-		while((repetitions > 0) && (size > position)) {
+		while ((repetitions > 0) && (size > position)) {
 			if ((size - position) > device->free_in_fifo) {
 				/* msg to big for fifo - take a part */
 				int temp = device->free_in_fifo;
@@ -590,7 +590,7 @@ pi433_tx_thread(void *data)
 				rf69_write_fifo(spi,
 				                &buffer[position],
 				                temp);
-				position +=temp;
+				position += temp;
 			} else {
 				/* msg fits into fifo - take all */
 				device->free_in_fifo -= size;
@@ -882,7 +882,7 @@ static int setup_GPIOs(struct pi433_device *device)
 		DIO1_irq_handler
 	};
 
-	for (i=0; i<NUM_DIO; i++) {
+	for (i = 0; i < NUM_DIO; i++) {
 		/* "construct" name and get the gpio descriptor */
 		snprintf(name, sizeof(name), "DIO%d", i);
 		device->gpiod[i] = gpiod_get(&device->spi->dev, name, 0 /*GPIOD_IN*/);
@@ -898,7 +898,7 @@ static int setup_GPIOs(struct pi433_device *device)
 		if (IS_ERR(device->gpiod[i])) {
 			retval = PTR_ERR(device->gpiod[i]);
 			/* release already allocated gpios */
-			for (i--; i>=0; i--) {
+			for (i--; i >= 0; i--) {
 				free_irq(device->irq_num[i], device);
 				gpiod_put(device->gpiod[i]);
 			}
@@ -938,7 +938,7 @@ static void free_GPIOs(struct pi433_device *device)
 {
 	int i;
 
-	for (i=0; i<NUM_DIO; i++) {
+	for (i = 0; i < NUM_DIO; i++) {
 		/* check if gpiod is valid */
 		if (IS_ERR(device->gpiod[i]))
 			continue;
-- 
2.11.0

[PATCH 6/6] staging: pi433: pi433_if.c: use tabs instead of spaces

[Chase Metzger]

Replace spaces with tabs where possible to comply with the kernel
coding style.

Signed-off-by: Chase Metzger <chasemetzger15@gmail.com>
---
 drivers/staging/pi433/pi433_if.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index ad99f6527bd6..ad625a7cc76e 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -350,8 +350,8 @@ pi433_receive(void *data)
 		/* wait for RSSI level to become high */
 		dev_dbg(dev->dev, "rx: going to wait for high RSSI level");
 		retval = wait_event_interruptible(dev->rx_wait_queue,
-			                          rf69_get_flag(dev->spi,
-		                                                rssiExceededThreshold));
+						  rf69_get_flag(dev->spi,
+								rssiExceededThreshold));
 		if (retval) /* wait was interrupted */
 			goto abort;
 		dev->interrupt_rx_allowed = false;
@@ -588,8 +588,8 @@ pi433_tx_thread(void *data)
 				int temp = device->free_in_fifo;
 				device->free_in_fifo = 0;
 				rf69_write_fifo(spi,
-				                &buffer[position],
-				                temp);
+						&buffer[position],
+						temp);
 				position += temp;
 			} else {
 				/* msg fits into fifo - take all */
-- 
2.11.0

Re: [PATCH 1/6] staging: pi433: pi433_if.c: fix opening curly brace coding style issues

[Greg KH]

On Wed, Nov 15, 2017 at 04:35:48PM -0800, Chase Metzger wrote:
> Put opening curly braces for if/else/else if statements and for/while loops
> on the same line as the statements or loops to comply with the kernel
> coding style.
> 
> Signed-off-by: Chase Metzger <chasemetzger15@gmail.com>
> ---
>  drivers/staging/pi433/pi433_if.c | 110 ++++++++++++++-------------------------
>  1 file changed, 38 insertions(+), 72 deletions(-)
> 
> diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
> index ff86db1c6cbd..76d70345229a 100644
> --- a/drivers/staging/pi433/pi433_if.c
> +++ b/drivers/staging/pi433/pi433_if.c
> @@ -153,12 +153,10 @@ static irqreturn_t DIO1_irq_handler(int irq, void *dev_id)
>  {
>  	struct pi433_device *device = dev_id;
>  
> -	if      (device->irq_state[DIO1] == DIO_FifoNotEmpty_DIO1)
> -	{
> +	if      (device->irq_state[DIO1] == DIO_FifoNotEmpty_DIO1) {

Again, fix up the space issue here at the same time please.

thanks,

greg k-h

Re: [PATCH 4/6] staging: pi433: pi433_if.c: fix space prohibited coding style issues

[Greg KH]

On Wed, Nov 15, 2017 at 04:35:51PM -0800, Chase Metzger wrote:
> Remove unnecessary spaces before and after parenthesis' to comply
> with the kernel coding style.
> 
> Signed-off-by: Chase Metzger <chasemetzger15@gmail.com>
> ---
>  drivers/staging/pi433/pi433_if.c | 34 +++++++++++++++++-----------------
>  1 file changed, 17 insertions(+), 17 deletions(-)
> 
> diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
> index 3c5d8a05e976..ad89504655af 100644
> --- a/drivers/staging/pi433/pi433_if.c
> +++ b/drivers/staging/pi433/pi433_if.c
> @@ -342,7 +342,7 @@ pi433_receive(void *data)
>  		return retval;
>  
>  	/* now check RSSI, if low wait for getting high (RSSI interrupt) */
> -	while ( !rf69_get_flag(dev->spi, rssiExceededThreshold) ) {
> +	while (!rf69_get_flag(dev->spi, rssiExceededThreshold)) {
>  		/* allow tx to interrupt us while waiting for high RSSI */
>  		dev->interrupt_rx_allowed = true;
>  		wake_up_interruptible(&dev->tx_wait_queue);
> @@ -413,7 +413,7 @@ pi433_receive(void *data)
>  
>  	/* get payload */
>  	while (dev->rx_position < bytes_total) {
> -		if ( !rf69_get_flag(dev->spi, payloadReady) ) {
> +		if (!rf69_get_flag(dev->spi, payloadReady)) {
>  			retval = wait_event_interruptible(dev->fifo_wait_queue,
>  							  dev->free_in_fifo < FIFO_SIZE);
>  			if (retval) /* wait was interrupted */
> @@ -473,9 +473,9 @@ pi433_tx_thread(void *data)
>  		/* wait for fifo to be populated or for request to terminate*/
>  		dev_dbg(device->dev, "thread: going to wait for new messages");
>  		wait_event_interruptible(device->tx_wait_queue,
> -					 ( !kfifo_is_empty(&device->tx_fifo) ||
> -					    kthread_should_stop() ));
> -		if ( kthread_should_stop() )
> +					 (!kfifo_is_empty(&device->tx_fifo) ||
> +					    kthread_should_stop()));

Indent this properly too if you are touching it.

thanks,

greg k-h

Re: [PATCH 0/6] staging: pi433: pi433_if.c: coding style fixes

[Greg KH]

On Wed, Nov 15, 2017 at 04:35:47PM -0800, Chase Metzger wrote:
> Fixes some of the coding style violations to comply with the kernel
> coding style.
> 
> Chase Metzger (6):
>   staging: pi433: pi433_if.c: fix opening curly brace coding style
>     issues
>   staging: pi433: pi433_if.c: fix else if/else statements coding style
>     issues
>   staging: pi433: pi433_if.c: fix trailing statement coding style issues
>   staging: pi433: pi433_if.c: fix space prohibited coding style issues
>   staging: pi433: pi433_if.c: fix space(s) required coding style issues
>   staging: pi433: pi433_if.c: use tabs instead of spaces
> 
>  drivers/staging/pi433/pi433_if.c | 203 +++++++++++++++++----------------------
>  1 file changed, 87 insertions(+), 116 deletions(-)

Please rebase and resend this series based on the review comments.

thanks,

greg k-h