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Date:	Thu, 19 Nov 2015 09:21:20 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:	Sudeep Dutt <sudeep.dutt@...el.com>
Cc:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	linux-kernel@...r.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Subject: Re: [PATCH 1/3] misc:scif: do not define list_entry_next

On (11/18/15 08:17), Sudeep Dutt wrote:
> On Wed, 2015-11-18 at 21:10 +0900, Sergey Senozhatsky wrote:
> > Cosmetic.
> > 
> > Do not define list_entry_next() and use list_next_entry()
> > from list.h.
> > 
> 
> Hi Sergey,
> 
> A similar patch was posted @ https://lkml.org/lkml/2015/11/16/328

Oh, sorry for the noise then. thanks!

	-ss

> 
> Regards,
> Sudeep Dutt
> 
> > Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
> > ---
> >  drivers/misc/mic/scif/scif_dma.c  | 27 +++++++++++----------------
> >  drivers/misc/mic/scif/scif_main.h |  1 +
> >  2 files changed, 12 insertions(+), 16 deletions(-)
> > 
> > diff --git a/drivers/misc/mic/scif/scif_dma.c b/drivers/misc/mic/scif/scif_dma.c
> > index 95a13c6..8804bcc 100644
> > --- a/drivers/misc/mic/scif/scif_dma.c
> > +++ b/drivers/misc/mic/scif/scif_dma.c
> > @@ -74,11 +74,6 @@ struct scif_copy_work {
> >  	bool ordered;
> >  };
> >  
> > -#ifndef list_entry_next
> > -#define list_entry_next(pos, member) \
> > -	list_entry(pos->member.next, typeof(*pos), member)
> > -#endif
> > -
> >  /**
> >   * scif_reserve_dma_chan:
> >   * @ep: Endpoint Descriptor.
> > @@ -851,7 +846,7 @@ static void scif_rma_local_cpu_copy(s64 offset, struct scif_window *window,
> >  		(window->nr_pages << PAGE_SHIFT);
> >  	while (rem_len) {
> >  		if (offset == end_offset) {
> > -			window = list_entry_next(window, list);
> > +			window = list_next_entry(window, list);
> >  			end_offset = window->offset +
> >  				(window->nr_pages << PAGE_SHIFT);
> >  		}
> > @@ -957,7 +952,7 @@ scif_rma_list_dma_copy_unaligned(struct scif_copy_work *work,
> >  	remaining_len -= tail_len;
> >  	while (remaining_len) {
> >  		if (offset == end_offset) {
> > -			window = list_entry_next(window, list);
> > +			window = list_next_entry(window, list);
> >  			end_offset = window->offset +
> >  				(window->nr_pages << PAGE_SHIFT);
> >  		}
> > @@ -1064,7 +1059,7 @@ scif_rma_list_dma_copy_unaligned(struct scif_copy_work *work,
> >  	}
> >  	if (tail_len) {
> >  		if (offset == end_offset) {
> > -			window = list_entry_next(window, list);
> > +			window = list_next_entry(window, list);
> >  			end_offset = window->offset +
> >  				(window->nr_pages << PAGE_SHIFT);
> >  		}
> > @@ -1147,13 +1142,13 @@ static int _scif_rma_list_dma_copy_aligned(struct scif_copy_work *work,
> >  		(dst_window->nr_pages << PAGE_SHIFT);
> >  	while (remaining_len) {
> >  		if (src_offset == end_src_offset) {
> > -			src_window = list_entry_next(src_window, list);
> > +			src_window = list_next_entry(src_window, list);
> >  			end_src_offset = src_window->offset +
> >  				(src_window->nr_pages << PAGE_SHIFT);
> >  			scif_init_window_iter(src_window, &src_win_iter);
> >  		}
> >  		if (dst_offset == end_dst_offset) {
> > -			dst_window = list_entry_next(dst_window, list);
> > +			dst_window = list_next_entry(dst_window, list);
> >  			end_dst_offset = dst_window->offset +
> >  				(dst_window->nr_pages << PAGE_SHIFT);
> >  			scif_init_window_iter(dst_window, &dst_win_iter);
> > @@ -1314,13 +1309,13 @@ static int scif_rma_list_dma_copy_aligned(struct scif_copy_work *work,
> >  	remaining_len -= tail_len;
> >  	while (remaining_len) {
> >  		if (src_offset == end_src_offset) {
> > -			src_window = list_entry_next(src_window, list);
> > +			src_window = list_next_entry(src_window, list);
> >  			end_src_offset = src_window->offset +
> >  				(src_window->nr_pages << PAGE_SHIFT);
> >  			scif_init_window_iter(src_window, &src_win_iter);
> >  		}
> >  		if (dst_offset == end_dst_offset) {
> > -			dst_window = list_entry_next(dst_window, list);
> > +			dst_window = list_next_entry(dst_window, list);
> >  			end_dst_offset = dst_window->offset +
> >  				(dst_window->nr_pages << PAGE_SHIFT);
> >  			scif_init_window_iter(dst_window, &dst_win_iter);
> > @@ -1405,9 +1400,9 @@ static int scif_rma_list_dma_copy_aligned(struct scif_copy_work *work,
> >  	if (remaining_len) {
> >  		loop_len = remaining_len;
> >  		if (src_offset == end_src_offset)
> > -			src_window = list_entry_next(src_window, list);
> > +			src_window = list_next_entry(src_window, list);
> >  		if (dst_offset == end_dst_offset)
> > -			dst_window = list_entry_next(dst_window, list);
> > +			dst_window = list_next_entry(dst_window, list);
> >  
> >  		src_dma_addr = __scif_off_to_dma_addr(src_window, src_offset);
> >  		dst_dma_addr = __scif_off_to_dma_addr(dst_window, dst_offset);
> > @@ -1550,12 +1545,12 @@ static int scif_rma_list_cpu_copy(struct scif_copy_work *work)
> >  			end_dst_offset = dst_window->offset +
> >  				(dst_window->nr_pages << PAGE_SHIFT);
> >  			if (src_offset == end_src_offset) {
> > -				src_window = list_entry_next(src_window, list);
> > +				src_window = list_next_entry(src_window, list);
> >  				scif_init_window_iter(src_window,
> >  						      &src_win_iter);
> >  			}
> >  			if (dst_offset == end_dst_offset) {
> > -				dst_window = list_entry_next(dst_window, list);
> > +				dst_window = list_next_entry(dst_window, list);
> >  				scif_init_window_iter(dst_window,
> >  						      &dst_win_iter);
> >  			}
> > diff --git a/drivers/misc/mic/scif/scif_main.h b/drivers/misc/mic/scif/scif_main.h
> > index a08f0b6..9082f83 100644
> > --- a/drivers/misc/mic/scif/scif_main.h
> > +++ b/drivers/misc/mic/scif/scif_main.h
> > @@ -27,6 +27,7 @@
> >  #include <linux/file.h>
> >  #include <linux/vmalloc.h>
> >  #include <linux/scif.h>
> > +#include <linux/list.h>
> >  #include "../common/mic_dev.h"
> >  
> >  #define SCIF_MGMT_NODE 0
> 
> 
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