Commit 04a39523 authored Mar 26, 2007 by Russ Cox Committed by Linus Torvalds Mar 26, 2007

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



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>

parent 00db779b

include/linux/compiler.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -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

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