stacktrace.c:(.text+0x1b0): undefined reference to `.smp_send_safe_nmi_ipi'

[Nicholas Piggin]

On Thu, 14 Jun 2018 12:06:51 +0200
Christophe LEROY <christophe.leroy at c-s.fr> wrote:

> See http://kisskb.ellerman.id.au/kisskb/buildresult/13395345/ for details
> 
> Seems like that function only exists when CONFIG_NMI_IPI is defined.
> 
> Problem introduced by commit 5cc05910f26e6fd6da15f052f86f6150e4b91664 
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/arch/powerpc/kernel/stacktrace.c?h=next-20180614&id=5cc05910f26e6fd6da15f052f86f6150e4b91664
> 
> 
> What do you recommend to fix that ?

We could just do smp_call_function in the case we have no NMI_IPI?

Thanks,
Nick