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

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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@swtch.com>
Signed-off-by: Josh Triplett <josh@freedesktop.org>
Acked-by: Christopher Li <sparse@chrisli.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Russ Cox 2007-03-26 11:23:56 -04:00 committed by Linus Torvalds
parent 00db779bfe
commit 04a3952330
1 changed files with 2 additions and 2 deletions
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4
include/linux/compiler.h
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@ -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