[PATCH] powerpc/mm: Move the linear_mapping_mutex to the ifdef where it is used

[Michael Ellerman]

On Fri, 19 Feb 2021 17:56:48 +0100, Sebastian Andrzej Siewior wrote:
> The mutex linear_mapping_mutex is defined at the of the file while its
> only two user are within the CONFIG_MEMORY_HOTPLUG block.
> A compile without CONFIG_MEMORY_HOTPLUG set fails on PREEMPT_RT because
> its mutex implementation is smart enough to realize that it is unused.
> 
> Move the definition of linear_mapping_mutex to ifdef block where it is
> used.

Applied to powerpc/next.

[1/1] powerpc/mm: Move the linear_mapping_mutex to the ifdef where it is used
      https://git.kernel.org/powerpc/c/9be77e11dade414d2fa63750aa5c754fac49d619

cheers