x86: remove pointless uaccess_32.h complexity

I'm looking at trying to possibly merge the 32-bit and 64-bit versions
of the x86 uaccess.h implementation, but first this needs to be cleaned
up.

For example, the 32-bit version of "__copy_to_user_inatomic()" is mostly
the special cases for the constant size, and it's actually never
relevant.  Every user except for one aren't actually using a constant
size anyway, and the one user that uses it is better off just using
__put_user() instead.

So get rid of the unnecessary complexity.

[ The same cleanup should likely happen to __copy_from_user_inatomic()
  as well, but that one has a lot more users that I need to take a look
  at first ]

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index a676eedb441b..d4d7c88ab595 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -535,9 +535,7 @@ i915_gem_execbuffer_relocate_vma(struct i915_vma *vma,
 				return ret;
 
 			if (r->presumed_offset != offset &&
-			    __copy_to_user_inatomic(&user_relocs->presumed_offset,
-						    &r->presumed_offset,
-						    sizeof(r->presumed_offset))) {
+			    __put_user(r->presumed_offset, &user_relocs->presumed_offset)) {
 				return -EFAULT;
 			}