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From: stillcompiling@gmail.com (Joshua Clayton)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/9] Staging: rts5208: rtsx_transport.c: Fix comment style warnings
Date: Mon, 08 Feb 2016 19:05:31 -0800	[thread overview]
Message-ID: <2111025.vcC3H3DjyZ@diplodocus> (raw)
In-Reply-To: <1454981485-15686-2-git-send-email-shaun.ren@linux.com>

Hello Shaun,
/*
 * Multiline comments (except in the net subsystem) should 
 * start with "/*" on a separate line. see Documentation/CodingStyle
 */
If you are going to fix the comments you should get both the beginning
and the end.
More comments inline. 

On Monday, February 08, 2016 05:31:17 PM Shaun Ren wrote:
> This patch fixes all comment style warnings in rtsx_transport.c reported by
> checkpatch.pl:
> 
> WARNING: Block comments use a trailing */ on a separate line
> 
> Signed-off-by: Shaun Ren <shaun.ren@linux.com>
> ---
>  drivers/staging/rts5208/rtsx_transport.c | 21 ++++++++++++++-------
>  1 file changed, 14 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/staging/rts5208/rtsx_transport.c b/drivers/staging/rts5208/rtsx_transport.c
> index f27491e..3e3f6fb 100644
> --- a/drivers/staging/rts5208/rtsx_transport.c
> +++ b/drivers/staging/rts5208/rtsx_transport.c
> @@ -36,7 +36,8 @@
>   * For non-scatter-gather transfers, srb->request_buffer points to the
>   * transfer buffer itself and srb->request_bufflen is the buffer's length.)
>   * Update the *index and *offset variables so that the next copy will
> - * pick up from where this one left off. */
> + * pick up from where this one left off.
> + */
> 
Fix the beginning too, as mentioned above.
 
>  unsigned int rtsx_stor_access_xfer_buf(unsigned char *buffer,
>  	unsigned int buflen, struct scsi_cmnd *srb, unsigned int *index,
> @@ -45,7 +46,8 @@ unsigned int rtsx_stor_access_xfer_buf(unsigned char *buffer,
>  	unsigned int cnt;
>  
>  	/* If not using scatter-gather, just transfer the data directly.
> -	 * Make certain it will fit in the available buffer space. */
> +	 * Make certain it will fit in the available buffer space.
> +	 */

Either fix the beginning...  or better yet, get rid of the useless
(obvious) second line so it can be a single line comment.

>  	if (scsi_sg_count(srb) == 0) {
>  		if (*offset >= scsi_bufflen(srb))
>  			return 0;
> @@ -64,7 +66,8 @@ unsigned int rtsx_stor_access_xfer_buf(unsigned char *buffer,
>  	 * in kernel-addressable memory then kmap() will return its address.
>  	 * If the page is not directly accessible -- such as a user buffer
>  	 * located in high memory -- then kmap() will map it to a temporary
> -	 * position in the kernel's virtual address space. */
> +	 * position in the kernel's virtual address space.
> +	 */

Fix the beginning of this comment as well.
Also,  from "If the page is already in kernel -addressible memory..."
on is just  a description of what kmap() does.
I'd get rid of those lines. 

>  	} else {
>  		struct scatterlist *sg =
>  				(struct scatterlist *) scsi_sglist(srb)
> @@ -73,7 +76,8 @@ unsigned int rtsx_stor_access_xfer_buf(unsigned char *buffer,
>  		/* This loop handles a single s-g list entry, which may
>  		 * include multiple pages.  Find the initial page structure
>  		 * and the starting offset within the page, and update
> -		 * the *offset and *index values for the next loop. */
> +		 * the *offset and *index values for the next loop.
> +		 */

Fix the beginning of this comment.

>  		cnt = 0;
>  		while (cnt < buflen && *index < scsi_sg_count(srb)) {
>  			struct page *page = sg_page(sg) +
> @@ -97,7 +101,8 @@ unsigned int rtsx_stor_access_xfer_buf(unsigned char *buffer,
>  
>  			/* Transfer the data for all the pages in this
>  			 * s-g entry.  For each page: call kmap(), do the
> -			 * transfer, and call kunmap() immediately after. */
> +			 * transfer, and call kunmap() immediately after.
> +			 */

I'd get rid of this comment. It parrots what the code does, but does not
add any information.

>  			while (sglen > 0) {
>  				unsigned int plen = min(sglen, (unsigned int)
>  						PAGE_SIZE - poff);
> @@ -123,7 +128,8 @@ unsigned int rtsx_stor_access_xfer_buf(unsigned char *buffer,
>  }
>  
>  /* Store the contents of buffer into srb's transfer buffer and set the
> -* SCSI residue. */
> + * SCSI residue.
> + */

Fix the beginning as well.

>  void rtsx_stor_set_xfer_buf(unsigned char *buffer,
>  	unsigned int buflen, struct scsi_cmnd *srb)
>  {
> @@ -196,7 +202,8 @@ void rtsx_invoke_transport(struct scsi_cmnd *srb, struct rtsx_chip *chip)
>  
>  	/* Error and abort processing: try to resynchronize with the device
>  	 * by issuing a port reset.  If that fails, try a class-specific
> -	 * device reset. */
> +	 * device reset.
> +	 */

This comment  describes something that does not
happen in this function. Perhaps it did at one point. 
Regardless, It should be removed.

>  Handle_Errors:
>  	return;
>  }
> 

  reply	other threads:[~2016-02-09  3:05 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-26  2:27 [PATCH 0/2] Staging: rts5208: Coding style and dma mapping fixes Shaun Ren
2016-01-26  2:27 ` [PATCH 1/2] Staging: rts5208: Cleanup rtsx_transport.c Shaun Ren
2016-02-08  4:03   ` Greg KH
2016-01-26  2:27 ` [PATCH 2/2] Staging: rts5208: Add missing dma_mapping_error Shaun Ren
2016-02-08  4:03   ` Greg KH
2016-02-09  1:31 ` [PATCH v2 0/9] Staging: rts5208: Coding style and dma mapping fixes Shaun Ren
2016-02-09  1:31   ` [PATCH v2 1/9] Staging: rts5208: rtsx_transport.c: Fix comment style warnings Shaun Ren
2016-02-09  3:05     ` Joshua Clayton [this message]
2016-02-09  1:31   ` [PATCH v2 2/9] Staging: rts5208: rtsx_transport.c: Align to open parenthesis Shaun Ren
2016-02-10  5:21     ` Sudip Mukherjee
2016-02-09  1:31   ` [PATCH v2 3/9] Staging: rts5208: rtsx_transport.c: Remove spaces after casts Shaun Ren
2016-02-09  1:31   ` [PATCH v2 4/9] Staging: rts5208: rtsx_transport.c: Add spaces around - Shaun Ren
2016-02-09  1:31   ` [PATCH v2 5/9] Staging: rts5208: rtsx_transport.c: Remove extra newlines Shaun Ren
2016-02-09  1:31   ` [PATCH v2 6/9] Staging: rts5208: rtsx_transport.c: Fix label naming convention Shaun Ren
2016-02-09  1:31   ` [PATCH v2 7/9] Staging: rts5208: rtsx_transport.c: Remove unnecessary parentheses Shaun Ren
2016-02-10  5:26     ` Sudip Mukherjee
2016-02-10 18:38       ` Shaun Ren
2016-02-09  1:31   ` [PATCH v2 8/9] Staging: rts5208: rtsx_transport.c: Fix comparisons to NULL Shaun Ren
2016-02-09  1:31   ` [PATCH v2 9/9] Staging: rts5208: Add missing dma_mapping_error Shaun Ren
2016-02-10  2:45   ` [PATCH v3 0/9] Staging: rts5208: Coding style and dma mapping fixes Shaun Ren
2016-02-10  2:45     ` [PATCH v3 1/9] Staging: rts5208: rtsx_transport.c: Cleanup comments Shaun Ren
2016-02-10  3:06       ` Joshua Clayton
2016-02-10  2:45     ` [PATCH v3 2/9] Staging: rts5208: rtsx_transport.c: Align to open parenthesis Shaun Ren
2016-02-10  2:58       ` Joe Perches
2016-02-10  2:45     ` [PATCH v3 3/9] Staging: rts5208: rtsx_transport.c: Remove spaces after casts Shaun Ren
2016-02-10  2:45     ` [PATCH v3 4/9] Staging: rts5208: rtsx_transport.c: Add spaces around - Shaun Ren
2016-02-10  2:45     ` [PATCH v3 5/9] Staging: rts5208: rtsx_transport.c: Remove extra newlines Shaun Ren
2016-02-10  2:45     ` [PATCH v3 6/9] Staging: rts5208: rtsx_transport.c: Fix label naming convention Shaun Ren
2016-02-10  2:45     ` [PATCH v3 7/9] Staging: rts5208: rtsx_transport.c: Remove unnecessary parentheses Shaun Ren
2016-02-10  2:45     ` [PATCH v3 8/9] Staging: rts5208: rtsx_transport.c: Fix comparisons to NULL Shaun Ren
2016-02-10  2:45     ` [PATCH v3 9/9] Staging: rts5208: Add missing dma_mapping_error Shaun Ren
2016-02-12  4:07     ` [PATCH v4 0/8] Staging: rts5208: Fix coding style Shaun Ren
2016-02-12  4:07       ` [PATCH v4 1/8] Staging: rts5208: rtsx_transport.c: Cleanup comments Shaun Ren
2016-02-12  4:07       ` [PATCH v4 2/8] Staging: rts5208: rtsx_transport.c: Align to open parenthesis Shaun Ren
2016-02-12  4:32         ` Joe Perches
2016-02-12  6:56           ` [PATCH v5 " Shaun Ren
2016-02-15  0:41             ` Greg KH
2016-02-12  4:38         ` [PATCH v4 " kbuild test robot
2016-02-12  4:07       ` [PATCH v4 3/8] Staging: rts5208: rtsx_transport.c: Remove spaces after casts Shaun Ren
2016-02-12  4:07       ` [PATCH v4 4/8] Staging: rts5208: rtsx_transport.c: Add spaces around - Shaun Ren
2016-02-12  4:07       ` [PATCH v4 5/8] Staging: rts5208: rtsx_transport.c: Remove extra newlines Shaun Ren
2016-02-12  4:07       ` [PATCH v4 6/8] Staging: rts5208: rtsx_transport.c: Fix label naming convention Shaun Ren
2016-02-12  4:07       ` [PATCH v4 7/8] Staging: rts5208: rtsx_transport.c: Remove unnecessary parentheses Shaun Ren
2016-02-12  4:08       ` [PATCH v4 8/8] Staging: rts5208: rtsx_transport.c: Fix comparisons to NULL Shaun Ren
2016-02-15 18:58       ` [PATCH v5 RESEND 0/8] Staging: rts5208: Fix coding style Shaun Ren
2016-02-15 18:58         ` [PATCH v5 RESEND 1/8] Staging: rts5208: rtsx_transport.c: Cleanup comments Shaun Ren
2016-02-15 18:58         ` [PATCH v5 RESEND 2/8] Staging: rts5208: rtsx_transport.c: Align to open parenthesis Shaun Ren
2016-02-15 18:58         ` [PATCH v5 RESEND 3/8] Staging: rts5208: rtsx_transport.c: Remove spaces after casts Shaun Ren
2016-02-15 18:58         ` [PATCH v5 RESEND 4/8] Staging: rts5208: rtsx_transport.c: Add spaces around - Shaun Ren
2016-02-15 18:58         ` [PATCH v5 RESEND 5/8] Staging: rts5208: rtsx_transport.c: Remove extra newlines Shaun Ren
2016-02-15 18:58         ` [PATCH v5 RESEND 6/8] Staging: rts5208: rtsx_transport.c: Fix label naming convention Shaun Ren
2016-02-15 18:58         ` [PATCH v5 RESEND 7/8] Staging: rts5208: rtsx_transport.c: Remove unnecessary parentheses Shaun Ren
2016-02-15 18:58         ` [PATCH v5 RESEND 8/8] Staging: rts5208: rtsx_transport.c: Fix comparisons to NULL Shaun Ren

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