Commit 0bea803e authored by Ralph Campbell's avatar Ralph Campbell Committed by Linus Torvalds

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@redhat.comSigned-off-by: default avatarRalph Campbell <rcampbell@nvidia.com>
Signed-off-by: default avatarJérôme Glisse <jglisse@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 007ab7b4
......@@ -471,9 +471,9 @@ static inline void hmm_devmem_page_set_drvdata(struct page *page,
* @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];
}
......
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