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* [PATCH v2] drm/xen-front: fix pointer casts
@ 2018-05-23 11:36 Oleksandr Andrushchenko
  2018-05-23 11:46 ` Juergen Gross
  2018-05-23 11:46 ` Juergen Gross
  0 siblings, 2 replies; 12+ messages in thread
From: Oleksandr Andrushchenko @ 2018-05-23 11:36 UTC (permalink / raw)
  To: xen-devel, linux-kernel, dri-devel, daniel.vetter, jgross,
	boris.ostrovsky
  Cc: andr2000, Oleksandr Andrushchenko

From: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>

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@epam.com>
---
Changes since v1:
 - remove unneeded u64 and phys_addr_t casts (Juergen)

 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..5693b4a4b02b 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 (uintptr_t)fb;
 }
 
 static inline u64 xen_drm_front_dbuf_to_cookie(struct drm_gem_object *gem_obj)
 {
-	return (u64)gem_obj;
+	return (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..d333b67cc1a0 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)))
+		((uintptr_t)pfn_to_kaddr(page_to_xen_pfn(page)))
 
 static int backend_unmap(struct xen_drm_front_shbuf *buf)
 {
-- 
2.17.0

^ permalink raw reply related	[flat|nested] 12+ messages in thread
* [PATCH v2] drm/xen-front: fix pointer casts
@ 2018-05-23 11:36 Oleksandr Andrushchenko
  0 siblings, 0 replies; 12+ messages in thread
From: Oleksandr Andrushchenko @ 2018-05-23 11:36 UTC (permalink / raw)
  To: xen-devel, linux-kernel, dri-devel, daniel.vetter, jgross,
	boris.ostrovsky
  Cc: andr2000, Oleksandr Andrushchenko

From: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>

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@epam.com>
---
Changes since v1:
 - remove unneeded u64 and phys_addr_t casts (Juergen)

 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..5693b4a4b02b 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 (uintptr_t)fb;
 }
 
 static inline u64 xen_drm_front_dbuf_to_cookie(struct drm_gem_object *gem_obj)
 {
-	return (u64)gem_obj;
+	return (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..d333b67cc1a0 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)))
+		((uintptr_t)pfn_to_kaddr(page_to_xen_pfn(page)))
 
 static int backend_unmap(struct xen_drm_front_shbuf *buf)
 {
-- 
2.17.0


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^ permalink raw reply related	[flat|nested] 12+ messages in thread
end of thread, other threads:[~2018-06-18 10:17 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-05-23 11:36 [PATCH v2] drm/xen-front: fix pointer casts Oleksandr Andrushchenko
2018-05-23 11:46 ` Juergen Gross
2018-05-25  5:32   ` Oleksandr Andrushchenko
2018-05-25  5:32     ` Oleksandr Andrushchenko
2018-06-18 10:06     ` Andre Przywara
2018-06-18 10:06     ` [Xen-devel] " Andre Przywara
2018-06-18 10:06       ` Andre Przywara
2018-06-18 10:17       ` Oleksandr Andrushchenko
2018-06-18 10:17       ` Oleksandr Andrushchenko
2018-05-25  5:32   ` Oleksandr Andrushchenko
2018-05-23 11:46 ` Juergen Gross
  -- strict thread matches above, loose matches on Subject: below --
2018-05-23 11:36 Oleksandr Andrushchenko

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