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* [PATCH] Staging: quatech_usb2: fix coding style issues
@ 2010-03-30 20:11 Soeren Moeller
  2010-03-30 20:58 ` Joe Perches
  0 siblings, 1 reply; 3+ messages in thread
From: Soeren Moeller @ 2010-03-30 20:11 UTC (permalink / raw)
  To: gregkh, richard, andre.goddard, soerenmoeller2001, nm127
  Cc: devel, linux-kernel

This is a patch to the file quatech_usb2.c that fixes two space before tabular and one line of more than 80 characters warnings found by checkpatch.pl

Signed-off-by: Soeren Moeller <soerenmoeller2001@gmail.com>
---
 drivers/staging/quatech_usb2/quatech_usb2.c |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/quatech_usb2/quatech_usb2.c b/drivers/staging/quatech_usb2/quatech_usb2.c
index 1561f74..ecd7313 100644
--- a/drivers/staging/quatech_usb2/quatech_usb2.c
+++ b/drivers/staging/quatech_usb2/quatech_usb2.c
@@ -57,7 +57,7 @@ static int debug;
 #define QT2_HW_FLOW_CONTROL_MASK		0xc5
 #define QT2_SW_FLOW_CONTROL_MASK		0xc6
 #define QT2_SW_FLOW_CONTROL_DISABLE		0xc7
-#define QT2_BREAK_CONTROL 			0xc8
+#define QT2_BREAK_CONTROL			0xc8
 #define QT2_STOP_RECEIVE			0xe0
 #define QT2_FLUSH_DEVICE			0xc4
 #define QT2_GET_SET_QMCR			0xe1
@@ -207,7 +207,7 @@ struct quatech2_dev {
 	bool	ReadBulkStopped;
 	char	open_ports;
 	struct usb_serial_port *current_port;
-	int 	buffer_size;
+	int	buffer_size;
 };
 
 /* structure which holds line and modem status flags */
@@ -1648,10 +1648,10 @@ __func__);
 			} /*endif*/
 			if (tty_st && urb->actual_length) {
 				tty_buffer_request_room(tty_st, 1);
-				tty_insert_flip_string(tty_st,
-					&((unsigned char *)(urb->transfer_buffer)
-						)[i],
-					1);
+				tty_insert_flip_string(tty_st, &(
+						(unsigned char *)
+						(urb->transfer_buffer)
+					)[i], 1);
 			}
 		} /*endfor*/
 		tty_flip_buffer_push(tty_st);
-- 
1.6.3.3


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

* Re: [PATCH] Staging: quatech_usb2: fix coding style issues
  2010-03-30 20:11 [PATCH] Staging: quatech_usb2: fix coding style issues Soeren Moeller
@ 2010-03-30 20:58 ` Joe Perches
  2010-03-31  8:34   ` Søren Møller
  0 siblings, 1 reply; 3+ messages in thread
From: Joe Perches @ 2010-03-30 20:58 UTC (permalink / raw)
  To: Soeren Moeller; +Cc: gregkh, richard, andre.goddard, nm127, devel, linux-kernel

On Tue, 2010-03-30 at 20:11 +0000, Soeren Moeller wrote:
> This is a patch to the file quatech_usb2.c that fixes two space before tabular and one line of more than 80 characters warnings found by checkpatch.pl
> -				tty_insert_flip_string(tty_st,
> -					&((unsigned char *)(urb->transfer_buffer)
> -						)[i],
> -					1);
> +				tty_insert_flip_string(tty_st, &(
> +						(unsigned char *)
> +						(urb->transfer_buffer)
> +					)[i], 1);

I think this is unsightly.
Perhaps a macro instead?

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/staging/quatech_usb2/quatech_usb2.c |   17 +++++++++--------
 1 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/quatech_usb2/quatech_usb2.c b/drivers/staging/quatech_usb2/quatech_usb2.c
index 1561f74..d14792a 100644
--- a/drivers/staging/quatech_usb2/quatech_usb2.c
+++ b/drivers/staging/quatech_usb2/quatech_usb2.c
@@ -109,12 +109,15 @@ static int debug;
 #define  QT2_LINE_STATUS_REGISTER       0x05
 #define  QT2_MODEM_STATUS_REGISTER      0x06
 
+/* handy macro for extracting a byte from a data read transfer buffer */
+#define URB_TBUF(urb, pos) (((unsigned char *)(urb->transfer_buffer))[pos])
+
 /* handy macros for doing escape sequence parsing on data reads */
-#define THISCHAR	((unsigned char *)(urb->transfer_buffer))[i]
-#define NEXTCHAR	((unsigned char *)(urb->transfer_buffer))[i + 1]
-#define THIRDCHAR	((unsigned char *)(urb->transfer_buffer))[i + 2]
-#define FOURTHCHAR	((unsigned char *)(urb->transfer_buffer))[i + 3]
-#define FIFTHCHAR	((unsigned char *)(urb->transfer_buffer))[i + 4]
+#define THISCHAR	URB_TBUF(urb, i + 0)
+#define NEXTCHAR	URB_TBUF(urb, i + 1)
+#define THIRDCHAR	URB_TBUF(urb, i + 2)
+#define FOURTHCHAR	URB_TBUF(urb, i + 3)
+#define FIFTHCHAR	URB_TBUF(urb, i + 4)
 
 static const struct usb_device_id quausb2_id_table[] = {
 	{USB_DEVICE(USB_VENDOR_ID_QUATECH, QUATECH_SSU2_100)},
@@ -1649,9 +1652,7 @@ __func__);
 			if (tty_st && urb->actual_length) {
 				tty_buffer_request_room(tty_st, 1);
 				tty_insert_flip_string(tty_st,
-					&((unsigned char *)(urb->transfer_buffer)
-						)[i],
-					1);
+						       &URB_TBUF(urb, i), 1);
 			}
 		} /*endfor*/
 		tty_flip_buffer_push(tty_st);



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

* Re: [PATCH] Staging: quatech_usb2: fix coding style issues
  2010-03-30 20:58 ` Joe Perches
@ 2010-03-31  8:34   ` Søren Møller
  0 siblings, 0 replies; 3+ messages in thread
From: Søren Møller @ 2010-03-31  8:34 UTC (permalink / raw)
  To: Joe Perches; +Cc: gregkh, richard, andre.goddard, nm127, devel, linux-kernel

2010/3/30 Joe Perches <joe@perches.com>
>
> On Tue, 2010-03-30 at 20:11 +0000, Soeren Moeller wrote:
> > This is a patch to the file quatech_usb2.c that fixes two space before tabular and one line of more than 80 characters warnings found by checkpatch.pl
> > -                             tty_insert_flip_string(tty_st,
> > -                                     &((unsigned char *)(urb->transfer_buffer)
> > -                                             )[i],
> > -                                     1);
> > +                             tty_insert_flip_string(tty_st, &(
> > +                                             (unsigned char *)
> > +                                             (urb->transfer_buffer)
> > +                                     )[i], 1);
>
> I think this is unsightly.
> Perhaps a macro instead?
>

The macro seems like a good idea, it makes the code a lot more readable.
Thanks for your response

Regards
Sören Möller

> Signed-off-by: Joe Perches <joe@perches.com>
> ---
>  drivers/staging/quatech_usb2/quatech_usb2.c |   17 +++++++++--------
>  1 files changed, 9 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/staging/quatech_usb2/quatech_usb2.c b/drivers/staging/quatech_usb2/quatech_usb2.c
> index 1561f74..d14792a 100644
> --- a/drivers/staging/quatech_usb2/quatech_usb2.c
> +++ b/drivers/staging/quatech_usb2/quatech_usb2.c
> @@ -109,12 +109,15 @@ static int debug;
>  #define  QT2_LINE_STATUS_REGISTER       0x05
>  #define  QT2_MODEM_STATUS_REGISTER      0x06
>
> +/* handy macro for extracting a byte from a data read transfer buffer */
> +#define URB_TBUF(urb, pos) (((unsigned char *)(urb->transfer_buffer))[pos])
> +
>  /* handy macros for doing escape sequence parsing on data reads */
> -#define THISCHAR       ((unsigned char *)(urb->transfer_buffer))[i]
> -#define NEXTCHAR       ((unsigned char *)(urb->transfer_buffer))[i + 1]
> -#define THIRDCHAR      ((unsigned char *)(urb->transfer_buffer))[i + 2]
> -#define FOURTHCHAR     ((unsigned char *)(urb->transfer_buffer))[i + 3]
> -#define FIFTHCHAR      ((unsigned char *)(urb->transfer_buffer))[i + 4]
> +#define THISCHAR       URB_TBUF(urb, i + 0)
> +#define NEXTCHAR       URB_TBUF(urb, i + 1)
> +#define THIRDCHAR      URB_TBUF(urb, i + 2)
> +#define FOURTHCHAR     URB_TBUF(urb, i + 3)
> +#define FIFTHCHAR      URB_TBUF(urb, i + 4)
>
>  static const struct usb_device_id quausb2_id_table[] = {
>        {USB_DEVICE(USB_VENDOR_ID_QUATECH, QUATECH_SSU2_100)},
> @@ -1649,9 +1652,7 @@ __func__);
>                        if (tty_st && urb->actual_length) {
>                                tty_buffer_request_room(tty_st, 1);
>                                tty_insert_flip_string(tty_st,
> -                                       &((unsigned char *)(urb->transfer_buffer)
> -                                               )[i],
> -                                       1);
> +                                                      &URB_TBUF(urb, i), 1);
>                        }
>                } /*endfor*/
>                tty_flip_buffer_push(tty_st);
>
>

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

end of thread, other threads:[~2010-03-31  8:34 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-03-30 20:11 [PATCH] Staging: quatech_usb2: fix coding style issues Soeren Moeller
2010-03-30 20:58 ` Joe Perches
2010-03-31  8:34   ` Søren Møller

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