[PATCH] powerpc64/ftrace: Include ftrace.h needed for enable/disable calls

[Naveen N. Rao]

Luke Dashjr wrote:
> On Friday 17 August 2018 10:25:40 Naveen N. Rao wrote:
>> Luke Dashjr wrote:
>> > this_cpu_disable_ftrace and this_cpu_enable_ftrace are inlines in
>> > ftrace.h Without it included, the build fails.
>>
>> I'm unable to reproduce this. Can you share your .config and the build
>> environment?
> 
> https://luke.dashjr.org/tmp/code/4.18-config.xz
> 
> Gentoo GNU/Linux (mostly stable keywords) on a Raptor Talos II POWER9 system.

Thanks. Your config is missing CONFIG_TRACEPOINTS and I hadn't tested 
that. The below fix looks good and I've confirmed that the other uses 
are fine as well.

- Naveen