[PATCH 1/3] nmi: create generic NMI backtrace implementation

[Thomas Gleixner]

On Wed, 15 Jul 2015, Russell King wrote:

> x86s NMI backtrace implementation (for arch_trigger_all_cpu_backtrace())
> is fairly generic in nature - the only architecture specific bits are
> the act of raising the NMI to other CPUs, and reporting the status of
> the NMI handler.
> 
> These are fairly simple to factor out, and produce a generic
> implementation which can be shared between ARM and x86.
> 
> Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>

Reviewed-by: Thomas Gleixner <tglx at linutronix.de>