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lib/scatterlist: Remove leftover from sg_page_iter comment 

Commit d901b2760d ("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.

Signed-off-by: Gal Pressman <galpress@amazon.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
hifive-unleashed-5.2
Gal Pressman 2019-05-06 18:02:56 +03:00 committed by Jason Gunthorpe
parent f23afd75fc
commit d2c4ada1ed
1 changed files with 5 additions and 5 deletions
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10
include/linux/scatterlist.h
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@ -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 */