diff options
| author | Ralph Campbell <rcampbell@nvidia.com> | 2017-11-16 04:34:00 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-16 05:21:03 +0300 |
| commit | 0bea803e9e6bf3836d5368a6426c30a8c0e5eab5 (patch) | |
| tree | 6ea461225e701f2f8f5a9080f17f18a412121170 | |
| parent | 007ab7b49acb93af650f3acec0e51d2c6b843934 (diff) | |
| download | linux-0bea803e9e6bf3836d5368a6426c30a8c0e5eab5.tar.xz | |
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.com
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/hmm.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/hmm.h b/include/linux/hmm.h index 96e69979f84d..325017ad9311 100644 --- a/include/linux/hmm.h +++ b/include/linux/hmm.h @@ -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]; } |