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* [PATCH] Bluetooth: bfusb: Fixed some coding style issues
@ 2012-01-15 19:47 mahendra singh meena
  2012-01-15 20:33 ` Joe Perches
  0 siblings, 1 reply; 2+ messages in thread
From: mahendra singh meena @ 2012-01-15 19:47 UTC (permalink / raw)
  To: marcel; +Cc: padovan, linux-bluetooth, linux-kernel


Fixed some coding style issues shown by scripts/checkpatch.pl

Signed-off-by: Mahendra Singh Meena <mahendra.devel@gmail.com>
---
 drivers/bluetooth/bfusb.c |   52 ++++++++++++++++++++++++++++++--------------
 1 files changed, 35 insertions(+), 17 deletions(-)

diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
index a323bae..e74062a 100644
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -127,11 +127,13 @@ static int bfusb_send_bulk(struct bfusb_data *data, struct sk_buff *skb)
 {
 	struct bfusb_data_scb *scb = (void *) skb->cb;
 	struct urb *urb = bfusb_get_completed(data);
+	struct urb *urb_chk = urb;
 	int err, pipe;

 	BT_DBG("bfusb %p skb %p len %d", data, skb, skb->len);
+	urb = usb_alloc_urb(0, GFP_ATOMIC);

-	if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
+	if (!urb_chk && !urb)
 		return -ENOMEM;

 	pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep);
@@ -145,7 +147,7 @@ static int bfusb_send_bulk(struct bfusb_data *data, struct sk_buff *skb)

 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err) {
-		BT_ERR("%s bulk tx submit failed urb %p err %d",
+		BT_ERR("%s bulk tx submit failed urb %p err %d",
 					data->hdev->name, urb, err);
 		skb_unlink(skb, &data->pending_q);
 		usb_free_urb(urb);
@@ -214,11 +216,13 @@ static int bfusb_rx_submit(struct bfusb_data *data, struct urb *urb)
 {
 	struct bfusb_data_scb *scb;
 	struct sk_buff *skb;
+	struct urb *urb_chk = urb;
 	int err, pipe, size = HCI_MAX_FRAME_SIZE + 32;

 	BT_DBG("bfusb %p urb %p", data, urb);
+	urb = usb_alloc_urb(0, GFP_ATOMIC);

-	if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
+	if (!urb && !urb_chk)
 		return -ENOMEM;

 	skb = bt_skb_alloc(size, GFP_ATOMIC);
@@ -251,7 +255,8 @@ static int bfusb_rx_submit(struct bfusb_data *data, struct urb *urb)
 	return err;
 }

-static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned char *buf, int len)
+static inline int bfusb_recv_block(struct bfusb_data *data, int hdr,
+						 unsigned char *buf, int len)
 {
 	BT_DBG("bfusb %p hdr 0x%02x data %p len %d", data, hdr, buf, len);

@@ -283,30 +288,37 @@ static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned ch
 		switch (pkt_type) {
 		case HCI_EVENT_PKT:
 			if (len >= HCI_EVENT_HDR_SIZE) {
-				struct hci_event_hdr *hdr = (struct hci_event_hdr *) buf;
+				struct hci_event_hdr *hdr;
+				hdr = (struct hci_event_hdr *) buf;
 				pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen;
 			} else {
-				BT_ERR("%s event block is too short", data->hdev->name);
+				BT_ERR("%s event block is too short",
+							 data->hdev->name);
 				return -EILSEQ;
 			}
 			break;

 		case HCI_ACLDATA_PKT:
 			if (len >= HCI_ACL_HDR_SIZE) {
-				struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) buf;
-				pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen);
+				struct hci_acl_hdr *hdr;
+				hdr = (struct hci_acl_hdr *) buf;
+				pkt_len = HCI_ACL_HDR_SIZE;
+				pkt_len = pkt_len + __le16_to_cpu(hdr->dlen);
 			} else {
-				BT_ERR("%s data block is too short", data->hdev->name);
+				BT_ERR("%s data block is too short",
+							 data->hdev->name);
 				return -EILSEQ;
 			}
 			break;

 		case HCI_SCODATA_PKT:
 			if (len >= HCI_SCO_HDR_SIZE) {
-				struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) buf;
+				struct hci_sco_hdr *hdr;
+				hdr = (struct hci_sco_hdr *) buf;
 				pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen;
 			} else {
-				BT_ERR("%s audio block is too short", data->hdev->name);
+				BT_ERR("%s audio block is too short",
+							 data->hdev->name);
 				return -EILSEQ;
 			}
 			break;
@@ -324,7 +336,8 @@ static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned ch
 		data->reassembly = skb;
 	} else {
 		if (!data->reassembly) {
-			BT_ERR("%s unexpected continuation block", data->hdev->name);
+			BT_ERR("%s unexpected continuation block",
+							 data->hdev->name);
 			return -EIO;
 		}
 	}
@@ -473,7 +486,8 @@ static int bfusb_send_frame(struct sk_buff *skb)
 	unsigned char buf[3];
 	int sent = 0, size, count;

-	BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, bt_cb(skb)->pkt_type, skb->len);
+	BT_DBG("hdev %p skb %p type %d len %d",
+				 hdev, skb, bt_cb(skb)->pkt_type, skb->len);

 	if (!hdev) {
 		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
@@ -514,12 +528,14 @@ static int bfusb_send_frame(struct sk_buff *skb)
 	while (count) {
 		size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE);

-		buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0);
+		buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) |
+						((count == size) ? 0x08 : 0);
 		buf[1] = 0x00;
 		buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size;

 		memcpy(skb_put(nskb, 3), buf, 3);
-		skb_copy_from_linear_data_offset(skb, sent, skb_put(nskb, size), size);
+		skb_copy_from_linear_data_offset(skb, sent,
+						 skb_put(nskb, size), size);

 		sent  += size;
 		count -= size;
@@ -553,7 +569,8 @@ static void bfusb_destruct(struct hci_dev *hdev)
 	kfree(data);
 }

-static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
+static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd,
+							 unsigned long arg)
 {
 	return -ENOIOCTLCMD;
 }
@@ -638,7 +655,8 @@ error:
 	return err;
 }

-static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
+static int bfusb_probe(struct usb_interface *intf,
+						 const struct usb_device_id *id)
 {
 	const struct firmware *firmware;
 	struct usb_device *udev = interface_to_usbdev(intf);
-- 
1.7.0.4

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] Bluetooth: bfusb: Fixed some coding style issues
  2012-01-15 19:47 [PATCH] Bluetooth: bfusb: Fixed some coding style issues mahendra singh meena
@ 2012-01-15 20:33 ` Joe Perches
  0 siblings, 0 replies; 2+ messages in thread
From: Joe Perches @ 2012-01-15 20:33 UTC (permalink / raw)
  To: mahendra singh meena; +Cc: marcel, padovan, linux-bluetooth, linux-kernel

On Mon, 2012-01-16 at 01:17 +0530, mahendra singh meena wrote:
> Fixed some coding style issues shown by scripts/checkpatch.pl
[]
> diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
[]
> @@ -127,11 +127,13 @@ static int bfusb_send_bulk(struct bfusb_data *data, struct sk_buff *skb)
>  {
>  	struct bfusb_data_scb *scb = (void *) skb->cb;
>  	struct urb *urb = bfusb_get_completed(data);
> +	struct urb *urb_chk = urb;
>  	int err, pipe;
> 
>  	BT_DBG("bfusb %p skb %p len %d", data, skb, skb->len);
> +	urb = usb_alloc_urb(0, GFP_ATOMIC);
> 
> -	if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
> +	if (!urb_chk && !urb)

Broken patch.

You are now always calling usb_alloc_urb and
overwriting the original urb that is returned
from bfusb_get_completed().

Not everything that checkpatch flags needs to be
modified.

The original is better than even a correct
proposed patch because it's more readable and it
uses fewer variables.

If you _really_ want to avoid checkpatch warnings,
then don't use the additional automatic.

	if (!urb) {
		urb = usb_alloc_urb(0, GFP_ATOMIC);
		if (!urb)
			return -ENOMEM;
	}

> @@ -145,7 +147,7 @@ static int bfusb_send_bulk(struct bfusb_data *data, struct sk_buff *skb)
> 
>  	err = usb_submit_urb(urb, GFP_ATOMIC);
>  	if (err) {
> -		BT_ERR("%s bulk tx submit failed urb %p err %d",
> +		BT_ERR("%s bulk tx submit failed urb %p err %d",

? What does checkpatch complain about this?

>  					data->hdev->name, urb, err);
>  		skb_unlink(skb, &data->pending_q);
>  		usb_free_urb(urb);
> @@ -214,11 +216,13 @@ static int bfusb_rx_submit(struct bfusb_data *data, struct urb *urb)
>  {
>  	struct bfusb_data_scb *scb;
>  	struct sk_buff *skb;
> +	struct urb *urb_chk = urb;
>  	int err, pipe, size = HCI_MAX_FRAME_SIZE + 32;
> 
>  	BT_DBG("bfusb %p urb %p", data, urb);
> +	urb = usb_alloc_urb(0, GFP_ATOMIC);
> 
> -	if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
> +	if (!urb && !urb_chk)
>  		return -ENOMEM;

Same broken change.

> @@ -283,30 +288,37 @@ static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned ch
>  		switch (pkt_type) {
>  		case HCI_EVENT_PKT:
>  			if (len >= HCI_EVENT_HDR_SIZE) {
> -				struct hci_event_hdr *hdr = (struct hci_event_hdr *) buf;
> +				struct hci_event_hdr *hdr;
> +				hdr = (struct hci_event_hdr *) buf;

It'd probably be better to change the type of "buf" to void *
and avoid all the casts.

> @@ -514,12 +528,14 @@ static int bfusb_send_frame(struct sk_buff *skb)
>  	while (count) {
>  		size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE);
> 
> -		buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0);
> +		buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) |
> +						((count == size) ? 0x08 : 0);

When wrapping just for 80 columns, please try to use
alignments that are a bit more readable and perhaps
remove unnecessary parentheses like:

		buf[0] = 0xc1 |
			 (sent == 0 ? 0x04 : 0) |
			 (count == size ? 0x08 : 0);

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2012-01-15 20:33 ` Joe Perches

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