On 21/05/18 09:39, Oleksandr Andrushchenko wrote:
> From: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
>
> Building for a 32-bit target results in warnings from casting
> between a 32-bit pointer and a 64-bit integer. Fix the warnings
> by casting those pointers to uintptr_t first.
>
> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
> ---
> drivers/gpu/drm/xen/xen_drm_front.h | 4 ++--
> drivers/gpu/drm/xen/xen_drm_front_shbuf.c | 2 +-
> 2 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/xen/xen_drm_front.h b/drivers/gpu/drm/xen/xen_drm_front.h
> index 2c2479b571ae..8e15dbebc4ba 100644
> --- a/drivers/gpu/drm/xen/xen_drm_front.h
> +++ b/drivers/gpu/drm/xen/xen_drm_front.h
> @@ -126,12 +126,12 @@ struct xen_drm_front_drm_info {
>
> static inline u64 xen_drm_front_fb_to_cookie(struct drm_framebuffer *fb)
> {
> - return (u64)fb;
> + return (u64)(uintptr_t)fb;
Do you really still need the cast to u64?
> }
>
> static inline u64 xen_drm_front_dbuf_to_cookie(struct drm_gem_object *gem_obj)
> {
> - return (u64)gem_obj;
> + return (u64)(uintptr_t)gem_obj;
> }
>
> int xen_drm_front_mode_set(struct xen_drm_front_drm_pipeline *pipeline,
> diff --git a/drivers/gpu/drm/xen/xen_drm_front_shbuf.c b/drivers/gpu/drm/xen/xen_drm_front_shbuf.c
> index 8099cb343ae3..47fc93847765 100644
> --- a/drivers/gpu/drm/xen/xen_drm_front_shbuf.c
> +++ b/drivers/gpu/drm/xen/xen_drm_front_shbuf.c
> @@ -122,7 +122,7 @@ static void guest_calc_num_grefs(struct xen_drm_front_shbuf *buf)
> }
>
> #define xen_page_to_vaddr(page) \
> - ((phys_addr_t)pfn_to_kaddr(page_to_xen_pfn(page)))
> + ((phys_addr_t)(uintptr_t)pfn_to_kaddr(page_to_xen_pfn(page)))
phys_addr_t for a virtual address?
Juergen
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