Re: [PATCH v3 5/6] Initialize the mapping of KASan shadow memory

[Nicolas Pitre]

On Mon, 2 Apr 2018, Abbott Liu wrote:

> index c79b829..20161e2 100644
> --- a/arch/arm/kernel/head-common.S
> +++ b/arch/arm/kernel/head-common.S
> @@ -115,6 +115,9 @@ __mmap_switched:
>  	str	r8, [r2]			@ Save atags pointer
>  	cmp	r3, #0
>  	strne	r10, [r3]			@ Save control register values
> +#ifdef CONFIG_KASAN
> +	bl	kasan_early_init
> +#endif
>  	mov	lr, #0
>  	b	start_kernel
>  ENDPROC(__mmap_switched)

Would be better if lr was cleared before calling kasan_early_init.


Nicolas