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UPSTREAM: usercopy: force check_object_size() inline

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Just for good measure, make sure that check_object_size() is always
inlined too, as already done for copy_*_user() and __copy_*_user().

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kees Cook <keescook@chromium.org>

Change-Id: Ibfdf4790d03fe426e68d9a864c55a0d1bbfb7d61
(cherry picked from commit a85d6b8242)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
This commit is contained in:
Kees Cook
2016-09-07 09:39:32 -07:00
committed by Sami Tolvanen
parent 1fd70f71e8
commit 93584e7e1b
1 changed files with 2 additions and 2 deletions
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4
include/linux/thread_info.h
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@@ -158,8 +158,8 @@ static inline int arch_within_stack_frames(const void * const stack,
extern void __check_object_size(const void *ptr, unsigned long n,
bool to_user);
static inline void check_object_size(const void *ptr, unsigned long n,
bool to_user)
static __always_inline void check_object_size(const void *ptr, unsigned long n,
bool to_user)
{
if (!__builtin_constant_p(n))
__check_object_size(ptr, n, to_user);