Re: [PATCH 3/6] reliable stack trace support (x86-64 IRQ stack adjustment)

[Andi Kleen]

>  1:	incl	%gs:pda_irqcount	# RED-PEN should check preempt count
> -	movq %gs:pda_irqstackptr,%rax
> -	cmoveq %rax,%rsp /*todo This needs CFI annotation! */
> +	cmoveq %gs:pda_irqstackptr,%rsp
> +#if !defined(CONFIG_DEBUG_INFO) && !defined(CONFIG_UNWIND_INFO)
>  	pushq %rdi			# save old stack	
> -#ifndef CONFIG_DEBUG_INFO

The tests for DEBUG_INFO are obsolete here. It should only test for 
UNWIND_INFO. I'll fix that up.

-Andi

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