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]; } _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
