| commit | c55d240003ae253d3057dcf93510c9bd64bb7a09 | [log] [tgz] |
|---|---|---|
| author | Michael Ellerman <mpe@ellerman.id.au> | Tue Nov 15 18:02:32 2016 +1100 |
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Tue Nov 15 19:26:06 2016 +0100 |
| tree | c80233dfdea2ba01b6a627fbe9cbc52a45df203c | |
| parent | 967b274e02e18c9fbb4d19b96a89bd0afbc77b7a [diff] |
lkdtm: Prevent the compiler from optimising lkdtm_CORRUPT_STACK() At least on powerpc with GCC 6, the compiler is smart enough to optimise lkdtm_CORRUPT_STACK() into an empty function that just returns. If we print the buffer after we've written to it that prevents the compiler from optimising away data and the memset(). Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>