On Thu, 21 Dec 2017, Andi Kleen wrote:

> From: Andi Kleen <a...@linux.intel.com>
> 
> Otherwise LTO will inline them anyways and cause a large
> kernel text increase.
> 
> Since the explicit intention here is to not inline them marking
> them noinline is good documentation even for the non LTO case.
> 
> Signed-off-by: Andi Kleen <a...@linux.intel.com>
> ---
>  kernel/locking/spinlock.c | 56 
> +++++++++++++++++++++++------------------------

How is that patch x86 specific? 

Cc'in the maintainers of that is not optional either.

Thanks,

        tglx

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