[PATCH v1 2/2] stackprotector: actually use get_random_canary()

[Catalin Marinas]

On Sun, Oct 23, 2022 at 10:32:08PM +0200, Jason A. Donenfeld wrote:
> The RNG always mixes in the Linux version extremely early in boot. It
> also always includes a cycle counter, not only during early boot, but
> each and every time it is invoked prior to being fully initialized.
> Together, this means that the use of additional xors inside of the
> various stackprotector.h files is superfluous and over-complicated.
> Instead, we can get exactly the same thing, but better, by just calling
> `get_random_canary()`.
> 
> Signed-off-by: Jason A. Donenfeld <Jason at zx2c4.com>
> ---
>  arch/arm/include/asm/stackprotector.h     |  9 +--------
>  arch/arm64/include/asm/stackprotector.h   |  9 +--------

For arm64:

Acked-by: Catalin Marinas <catalin.marinas at arm.com>