On Mon, Aug 19, 2019 at 3:14 PM Andrey Konovalov <andreyknvl@xxxxxxxxxx> wrote:
>
> Fix tagged_ptr not being initialized when TBI is not enabled.
>
> Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
> ---
> tools/testing/selftests/arm64/tags_test.c | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/tools/testing/selftests/arm64/tags_test.c b/tools/testing/selftests/arm64/tags_test.c
> index 22a1b266e373..5701163460ef 100644
> --- a/tools/testing/selftests/arm64/tags_test.c
> +++ b/tools/testing/selftests/arm64/tags_test.c
> @@ -14,15 +14,17 @@
> int main(void)
> {
> static int tbi_enabled = 0;
> - struct utsname *ptr, *tagged_ptr;
> + unsigned long tag = 0;
> + struct utsname *ptr;
> int err;
>
> if (prctl(PR_SET_TAGGED_ADDR_CTRL, PR_TAGGED_ADDR_ENABLE, 0, 0, 0) == 0)
> tbi_enabled = 1;
> ptr = (struct utsname *)malloc(sizeof(*ptr));
> if (tbi_enabled)
> - tagged_ptr = (struct utsname *)SET_TAG(ptr, 0x42);
> - err = uname(tagged_ptr);
> + tag = 0x42;
> + ptr = (struct utsname *)SET_TAG(ptr, tag);
> + err = uname(ptr);
> free(ptr);
>
> return err;
> --
> 2.23.0.rc1.153.gdeed80330f-goog
>
Hi Will,
This is supposed to go on top of the TBI related patches that you have
added to the arm tree.
Thanks!
