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authorSteven Rostedt <srostedt@redhat.com>2011-05-19 14:35:33 -0400
committerSteven Rostedt <rostedt@goodmis.org>2011-05-25 19:56:23 -0400
commitf29c50419c8d1998edd759f1990c4243a248f469 (patch)
treebf75e1376757022dcb54a12eea705f6086649edd /include/linux/uaccess.h
parent6e9101aeec39961308176e0f59e73ac5d37d243a (diff)
downloadblackbird-op-linux-f29c50419c8d1998edd759f1990c4243a248f469.tar.gz
blackbird-op-linux-f29c50419c8d1998edd759f1990c4243a248f469.zip
maccess,probe_kernel: Make write/read src const void *
The functions probe_kernel_write() and probe_kernel_read() do not modify the src pointer. Allow const pointers to be passed in without the need of a typecast. Acked-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1305824936.1465.4.camel@gandalf.stny.rr.com
Diffstat (limited to 'include/linux/uaccess.h')
-rw-r--r--include/linux/uaccess.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index d512d98dfb7d..5ca0951e1855 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -93,8 +93,8 @@ static inline unsigned long __copy_from_user_nocache(void *to,
* Safely read from address @src to the buffer at @dst. If a kernel fault
* happens, handle that and return -EFAULT.
*/
-extern long probe_kernel_read(void *dst, void *src, size_t size);
-extern long __probe_kernel_read(void *dst, void *src, size_t size);
+extern long probe_kernel_read(void *dst, const void *src, size_t size);
+extern long __probe_kernel_read(void *dst, const void *src, size_t size);
/*
* probe_kernel_write(): safely attempt to write to a location
@@ -105,7 +105,7 @@ extern long __probe_kernel_read(void *dst, void *src, size_t size);
* Safely write to address @dst from the buffer at @src. If a kernel fault
* happens, handle that and return -EFAULT.
*/
-extern long notrace probe_kernel_write(void *dst, void *src, size_t size);
-extern long notrace __probe_kernel_write(void *dst, void *src, size_t size);
+extern long notrace probe_kernel_write(void *dst, const void *src, size_t size);
+extern long notrace __probe_kernel_write(void *dst, const void *src, size_t size);
#endif /* __LINUX_UACCESS_H__ */
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