The patch titled
Subject: mm/hmm: constify hmm_devmem_page_get_drvdata() parameter
has been added to the -mm tree. Its filename is
mm-hmm-constify-hmm_devmem_page_get_drvdata-parameter.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-hmm-constify-hmm_devmem_page_get_drvdata-parameter.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-hmm-constify-hmm_devmem_page_get_drvdata-parameter.patch
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------------------------------------------------------
From: Ralph Campbell <rcampbell@xxxxxxxxxx>
Subject: mm/hmm: constify hmm_devmem_page_get_drvdata() parameter
Constify pointer parameter to avoid issue when use from code that only has
const struct page pointer to use in the first place.
Link: http://lkml.kernel.org/r/1506972774-10191-1-git-send-email-jglisse@xxxxxxxxxx
Signed-off-by: Ralph Campbell <rcampbell@xxxxxxxxxx>
Signed-off-by: Jérôme Glisse <jglisse@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/hmm.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN include/linux/hmm.h~mm-hmm-constify-hmm_devmem_page_get_drvdata-parameter include/linux/hmm.h
--- a/include/linux/hmm.h~mm-hmm-constify-hmm_devmem_page_get_drvdata-parameter
+++ a/include/linux/hmm.h
@@ -471,9 +471,9 @@ static inline void hmm_devmem_page_set_d
* @page: pointer to struct page
* Return: driver data value
*/
-static inline unsigned long hmm_devmem_page_get_drvdata(struct page *page)
+static inline unsigned long hmm_devmem_page_get_drvdata(const struct page *page)
{
- unsigned long *drvdata = (unsigned long *)&page->pgmap;
+ const unsigned long *drvdata = (const unsigned long *)&page->pgmap;
return drvdata[1];
}
_
Patches currently in -mm which might be from rcampbell@xxxxxxxxxx are
mm-hmm-constify-hmm_devmem_page_get_drvdata-parameter.patch
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