diff options
| author | Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2016-04-26 12:32:27 -0300 |
|---|---|---|
| committer | Victor Chong <victor.chong@linaro.org> | 2017-12-02 06:53:26 +0000 |
| commit | c51866baa4fba000c0075f8625139014a6c248f5 (patch) | |
| tree | 6b7fbf0626ffcf972fab5f9eb2c4ec0ffa0f7246 /include/linux/kernel.h | |
| parent | 11b4c995ebcb1a3b92602ad25a65c21d842b3c5e (diff) | |
kernel.h: add u64_to_user_ptr()
This function had copies in 3 different files. Unify them in kernel.h.
Change-Id: Iff8fbe002d3ceb81068e9cbd0acdf5fd5be14783
Cc: Joe Perches <joe@perches.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Acked-by: Daniel Vetter <daniel.vetter@intel.com> [drm/i915/]
Acked-by: Rob Clark <robdclark@gmail.com> [drm/msm/]
Acked-by: Lucas Stach <l.stach@pengutronix.de> [drm/etinav/]
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 3ed605bc8a0a688d8750a1e2eff39c854418c5cf)
Signed-off-by: Victor Chong <victor.chong@linaro.org>
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 50220cab738c..05b63a1e9f84 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -53,6 +53,13 @@ #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) +#define u64_to_user_ptr(x) ( \ +{ \ + typecheck(u64, x); \ + (void __user *)(uintptr_t)x; \ +} \ +) + /* * 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 |