linux-kernel - [RESEND PATCH v2] lib/scatterlist: Remove leftover from sg_page

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Message-ID: <1556433930-16302-1-git-send-email-galpress@amazon.com>
Date:   Sun, 28 Apr 2019 09:45:30 +0300
From:   Gal Pressman <galpress@...zon.com>
To:     <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
CC:     Mukesh Ojha <mojha@...eaurora.org>,
        Gal Pressman <galpress@...zon.com>,
        Jason Gunthorpe <jgg@...lanox.com>
Subject: [RESEND PATCH v2] lib/scatterlist: Remove leftover from sg_page_iter comment

Commit d901b2760dc6 ("lib/scatterlist: Provide a DMA page iterator")
added the sg DMA iterator but a leftover remained in the sg_page_iter
documentation as you cannot get the page dma address (only the page
itself), fix it.

Cc: Jason Gunthorpe <jgg@...lanox.com>
Signed-off-by: Gal Pressman <galpress@...zon.com>
Reviewed-by: Mukesh Ojha <mojha@...eaurora.org>
---
Changelog:
v1->v2:
* Reword commit message
---
 include/linux/scatterlist.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index b4be960c7e5d..30a9a55c28ba 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -340,11 +340,11 @@ int sg_alloc_table_chained(struct sg_table *table, int nents,
  * sg page iterator
  *
  * Iterates over sg entries page-by-page.  On each successful iteration, you
- * can call sg_page_iter_page(@piter) to get the current page and its dma
- * address. @piter->sg will point to the sg holding this page and
- * @piter->sg_pgoffset to the page's page offset within the sg. The iteration
- * will stop either when a maximum number of sg entries was reached or a
- * terminating sg (sg_last(sg) == true) was reached.
+ * can call sg_page_iter_page(@piter) to get the current page.
+ * @piter->sg will point to the sg holding this page and @piter->sg_pgoffset to
+ * the page's page offset within the sg. The iteration will stop either when a
+ * maximum number of sg entries was reached or a terminating sg
+ * (sg_last(sg) == true) was reached.
  */
 struct sg_page_iter {
 	struct scatterlist	*sg;		/* sg holding the page */
-- 
2.7.4