linux-kernel - [PATCH v9 2/3] kernel.h: add to_user

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Date:	Thu, 17 Mar 2016 14:30:16 -0300
From:	Gustavo Padovan <gustavo@...ovan.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	dri-devel@...ts.freedesktop.org,
	Daniel Stone <daniels@...labora.com>,
	Arve Hjønnevåg <arve@...roid.com>,
	Riley Andrews <riandrews@...roid.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Rob Clark <robdclark@...il.com>,
	Greg Hackmann <ghackmann@...gle.com>,
	John Harrison <John.C.Harrison@...el.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Gustavo Padovan <gustavo.padovan@...labora.co.uk>,
	akpm@...ux-foundation.org, David Airlie <airlied@...ux.ie>,
	Daniel Vetter <daniel.vetter@...el.com>
Subject: [PATCH v9 2/3] kernel.h: add to_user_ptr()

From: Gustavo Padovan <gustavo.padovan@...labora.co.uk>

This function had copies in 3 different files. Unify them in kernel.h.

Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: David Airlie <airlied@...ux.ie>
Cc: Daniel Vetter <daniel.vetter@...el.com>
Cc: Rob Clark <robdclark@...il.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@...labora.co.uk>
---
 drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 5 -----
 drivers/gpu/drm/i915/i915_drv.h              | 5 -----
 drivers/gpu/drm/msm/msm_gem_submit.c         | 5 -----
 include/linux/kernel.h                       | 5 +++++
 4 files changed, 5 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index 1aba01a..b1fafb6 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -28,11 +28,6 @@
 #define BO_LOCKED   0x4000
 #define BO_PINNED   0x2000
 
-static inline void __user *to_user_ptr(u64 address)
-{
-	return (void __user *)(uintptr_t)address;
-}
-
 static struct etnaviv_gem_submit *submit_create(struct drm_device *dev,
 		struct etnaviv_gpu *gpu, size_t nr)
 {
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index b0847b9..c446895 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3564,11 +3564,6 @@ static inline i915_reg_t i915_vgacntrl_reg(struct drm_device *dev)
 		return VGACNTRL;
 }
 
-static inline void __user *to_user_ptr(u64 address)
-{
-	return (void __user *)(uintptr_t)address;
-}
-
 static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
 {
 	unsigned long j = msecs_to_jiffies(m);
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 6d7cd3f..e9c8b96 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -28,11 +28,6 @@
 #define BO_LOCKED   0x4000
 #define BO_PINNED   0x2000
 
-static inline void __user *to_user_ptr(u64 address)
-{
-	return (void __user *)(uintptr_t)address;
-}
-
 static struct msm_gem_submit *submit_create(struct drm_device *dev,
 		struct msm_gpu *gpu, int nr)
 {
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index f31638c..c0a6001 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -53,6 +53,11 @@
 
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
 
+static inline void __user *to_user_ptr(u64 address)
+{
+	return (void __user *)(uintptr_t)address;
+}
+
 /*
  * This looks more complex than it should be. But we need to
  * get the type for the ~ right in round_down (it needs to be
-- 
2.5.0