[PATCH] Add const to pointer qualifiers for __chk_user_ptr and __chk_io_ptr.

[Russ Cox]

Change prototypes for  __chk_user_ptr and __chk_io_ptr
to take const void* instead of void*, so that code can pass
const void* to them.  (Right now sparse does not warn
about passing const void* to void* functions, but that
is a separate bug that I believe Josh is working on,
and once sparse does check this, the changed prototypes
will be necessary.)

Signed-off-by: Russ Cox <rsc@xxxxxxxxx>
Signed-off-by: Josh Triplett <josh@xxxxxxxxxxxxxxx>

---

include/linux/compiler.h |    4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

e5174dfa73190036ae1086110292594a3ffb3752
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index aca6698..3b6949b 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -15,8 +15,8 @@
# define __acquire(x)	__context__(x,1)
# define __release(x)	__context__(x,-1)
# define __cond_lock(x,c)	((c) ? ({ __acquire(x); 1; }) : 0)
-extern void __chk_user_ptr(void __user *);
-extern void __chk_io_ptr(void __iomem *);
+extern void __chk_user_ptr(const void __user *);
+extern void __chk_io_ptr(const void __iomem *);
#else
# define __user
# define __kernel
--
1.1.3
-
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