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* [PATCH] Staging: convert to list_for_each()
@ 2008-12-06 18:49 Alexander Beregalov
  2008-12-06 20:37 ` Alexey Dobriyan
  0 siblings, 1 reply; 3+ messages in thread
From: Alexander Beregalov @ 2008-12-06 18:49 UTC (permalink / raw)
  To: gregkh, linux-kernel



Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---

 drivers/staging/me4000/me4000.c |   42 ++++++++++++++++++--------------------
 drivers/staging/usbip/stub_rx.c |    3 +-
 2 files changed, 21 insertions(+), 24 deletions(-)

diff --git a/drivers/staging/me4000/me4000.c b/drivers/staging/me4000/me4000.c
index 0ac04b7..4feb615 100644
--- a/drivers/staging/me4000/me4000.c
+++ b/drivers/staging/me4000/me4000.c
@@ -542,8 +542,7 @@ static void clear_board_info_list(void)
 	struct me4000_ao_context *ao_context;
 
 	/* Clear context lists */
-	for (board_p = me4000_board_info_list.next;
-	     board_p != &me4000_board_info_list; board_p = board_p->next) {
+	list_for_each(board_p, &me4000_board_info_list) {
 		board_info = list_entry(board_p, struct me4000_info, list);
 		/* Clear analog output context list */
 		while (!list_empty(&board_info->ao_context_list)) {
@@ -663,12 +662,13 @@ static int init_board_info(struct pci_dev *pci_dev_p,
 	}
 
 	/* Get the index of the board in the global list */
-	for (board_p = me4000_board_info_list.next, i = 0;
-	     board_p != &me4000_board_info_list; board_p = board_p->next, i++) {
+	i = 0;
+	list_for_each(board_p, &me4000_board_info_list) {
 		if (board_p == &board_info->list) {
 			board_info->board_count = i;
 			break;
 		}
+		i++;
 	}
 	if (board_p == &me4000_board_info_list) {
 		printk(KERN_ERR
@@ -1303,11 +1303,12 @@ static int me4000_open(struct inode *inode_p, struct file *file_p)
 		       dev, mode);
 
 		/* Search for the board context */
-		for (ptr = me4000_board_info_list.next, i = 0;
-		     ptr != &me4000_board_info_list; ptr = ptr->next, i++) {
+		i = 0;
+		list_for_each(ptr, &me4000_board_info_list) {
 			board_info = list_entry(ptr, struct me4000_info, list);
 			if (i == board)
 				break;
+			i++;
 		}
 
 		if (ptr == &me4000_board_info_list) {
@@ -1318,13 +1319,13 @@ static int me4000_open(struct inode *inode_p, struct file *file_p)
 		}
 
 		/* Search for the dac context */
-		for (ptr = board_info->ao_context_list.next, i = 0;
-		     ptr != &board_info->ao_context_list;
-		     ptr = ptr->next, i++) {
+		i = 0;
+		list_for_each(ptr, &board_info->ao_context_list) {
 			ao_context = list_entry(ptr, struct me4000_ao_context,
 									list);
 			if (i == dev)
 				break;
+			i++;
 		}
 
 		if (ptr == &board_info->ao_context_list) {
@@ -1384,11 +1385,12 @@ static int me4000_open(struct inode *inode_p, struct file *file_p)
 		PDEBUG("me4000_open():ai board = %d mode = %d\n", board, mode);
 
 		/* Search for the board context */
-		for (ptr = me4000_board_info_list.next, i = 0;
-		     ptr != &me4000_board_info_list; ptr = ptr->next, i++) {
+		i = 0;
+		list_for_each(ptr, &me4000_board_info_list) {
 			board_info = list_entry(ptr, struct me4000_info, list);
 			if (i == board)
 				break;
+			i++;
 		}
 
 		if (ptr == &me4000_board_info_list) {
@@ -1438,8 +1440,7 @@ static int me4000_open(struct inode *inode_p, struct file *file_p)
 		PDEBUG("me4000_open():board = %d\n", board);
 
 		/* Search for the board context */
-		for (ptr = me4000_board_info_list.next;
-		     ptr != &me4000_board_info_list; ptr = ptr->next) {
+		list_for_each(ptr, &me4000_board_info_list) {
 			board_info = list_entry(ptr, struct me4000_info, list);
 			if (board_info->board_count == board)
 				break;
@@ -1483,8 +1484,7 @@ static int me4000_open(struct inode *inode_p, struct file *file_p)
 		PDEBUG("me4000_open():board = %d\n", board);
 
 		/* Search for the board context */
-		for (ptr = me4000_board_info_list.next;
-		     ptr != &me4000_board_info_list; ptr = ptr->next) {
+		list_for_each(ptr, &me4000_board_info_list) {
 			board_info = list_entry(ptr, struct me4000_info, list);
 			if (board_info->board_count == board)
 				break;
@@ -1526,8 +1526,7 @@ static int me4000_open(struct inode *inode_p, struct file *file_p)
 		PDEBUG("me4000_open():board = %d\n", board);
 
 		/* Search for the board context */
-		for (ptr = me4000_board_info_list.next;
-		     ptr != &me4000_board_info_list; ptr = ptr->next) {
+		list_for_each(ptr, &me4000_board_info_list) {
 			board_info = list_entry(ptr, struct me4000_info, list);
 			if (board_info->board_count == board)
 				break;
@@ -5975,8 +5974,7 @@ static void __exit me4000_module_exit(void)
 	pci_unregister_driver(&me4000_driver);
 
 	/* Reset the boards */
-	for (board_p = me4000_board_info_list.next;
-	     board_p != &me4000_board_info_list; board_p = board_p->next) {
+	list_for_each(board_p, &me4000_board_info_list) {
 		board_info = list_entry(board_p, struct me4000_info, list);
 		me4000_reset_board(board_info);
 	}
@@ -6000,9 +5998,7 @@ static int me4000_read_procmem(char *buf, char **start, off_t offset, int count,
 		       (ME4000_DRIVER_VERSION & 0xFF));
 
 	/* Search for the board context */
-	for (ptr = me4000_board_info_list.next;
-	     (ptr != &me4000_board_info_list) && (len < limit);
-	     ptr = ptr->next) {
+	list_for_each(ptr, &me4000_board_info_list) {
 		board_info = list_entry(ptr, struct me4000_info, list);
 
 		len +=
@@ -6110,6 +6106,8 @@ static int me4000_read_procmem(char *buf, char **start, off_t offset, int count,
 		    sprintf(buf + len, "AO 3 status register = 0x%08X\n",
 			    inl(board_info->me4000_regbase +
 				ME4000_AO_03_STATUS_REG));
+		if (len >= limit)
+			break;
 	}
 
 	*eof = 1;
diff --git a/drivers/staging/usbip/stub_rx.c b/drivers/staging/usbip/stub_rx.c
index 2a2cc0f..524de53 100644
--- a/drivers/staging/usbip/stub_rx.c
+++ b/drivers/staging/usbip/stub_rx.c
@@ -234,7 +234,6 @@ static void tweak_special_requests(struct urb *urb)
 static int stub_recv_cmd_unlink(struct stub_device *sdev,
 						struct usbip_header *pdu)
 {
-	struct list_head *listhead = &sdev->priv_init;
 	struct list_head *ptr;
 	unsigned long flags;
 
@@ -243,7 +242,7 @@ static int stub_recv_cmd_unlink(struct stub_device *sdev,
 
 	spin_lock_irqsave(&sdev->priv_lock, flags);
 
-	for (ptr = listhead->next; ptr != listhead; ptr = ptr->next) {
+	list_for_each(ptr, &sdev->priv_init) {
 		priv = list_entry(ptr, struct stub_priv, list);
 		if (priv->seqnum == pdu->u.cmd_unlink.seqnum) {
 			int ret;

^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH] Staging: convert to list_for_each()
  2008-12-06 18:49 [PATCH] Staging: convert to list_for_each() Alexander Beregalov
@ 2008-12-06 20:37 ` Alexey Dobriyan
  2008-12-07  1:10   ` Greg KH
  0 siblings, 1 reply; 3+ messages in thread
From: Alexey Dobriyan @ 2008-12-06 20:37 UTC (permalink / raw)
  To: Alexander Beregalov; +Cc: gregkh, linux-kernel

On Sat, Dec 06, 2008 at 09:49:05PM +0300, Alexander Beregalov wrote:

No, switch to list_for_each_entry() from the very beginning.

> --- a/drivers/staging/me4000/me4000.c
> +++ b/drivers/staging/me4000/me4000.c
> @@ -542,8 +542,7 @@ static void clear_board_info_list(void)
>  	struct me4000_ao_context *ao_context;
>  
>  	/* Clear context lists */
> -	for (board_p = me4000_board_info_list.next;
> -	     board_p != &me4000_board_info_list; board_p = board_p->next) {
> +	list_for_each(board_p, &me4000_board_info_list) {
>  		board_info = list_entry(board_p, struct me4000_info, list);
>  		/* Clear analog output context list */
>  		while (!list_empty(&board_info->ao_context_list)) {

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] Staging: convert to list_for_each()
  2008-12-06 20:37 ` Alexey Dobriyan
@ 2008-12-07  1:10   ` Greg KH
  0 siblings, 0 replies; 3+ messages in thread
From: Greg KH @ 2008-12-07  1:10 UTC (permalink / raw)
  To: Alexey Dobriyan; +Cc: Alexander Beregalov, linux-kernel

On Sat, Dec 06, 2008 at 11:37:40PM +0300, Alexey Dobriyan wrote:
> On Sat, Dec 06, 2008 at 09:49:05PM +0300, Alexander Beregalov wrote:
> 
> No, switch to list_for_each_entry() from the very beginning.

I agree, please use list_for_each_entry() instead.

Also, if you could split this up into two patches?  One for each driver
would be apprecited.

thanks,

greg k-h

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2008-12-07  1:15 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2008-12-06 18:49 [PATCH] Staging: convert to list_for_each() Alexander Beregalov
2008-12-06 20:37 ` Alexey Dobriyan
2008-12-07  1:10   ` Greg KH

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