linux-kernel - Re: [PATCH v3 1/2] arm64/arch_timer: include <linux/percpu.h>

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Date: Wed, 8 May 2024 17:10:00 -0400
From: Stephen Boyd <swboyd@...omium.org>
To: Catalin Marinas <catalin.marinas@....com>, Douglas Anderson <dianders@...omium.org>, 
	Mark Rutland <mark.rutland@....com>, Peter Zijlstra <peterz@...radead.org>, 
	Puranjay Mohan <puranjay@...nel.org>, Sumit Garg <sumit.garg@...aro.org>, 
	Thomas Gleixner <tglx@...utronix.de>, Will Deacon <will@...nel.org>, bpf@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: puranjay12@...il.com
Subject: Re: [PATCH v3 1/2] arm64/arch_timer: include <linux/percpu.h>

Quoting Puranjay Mohan (2024-05-03 10:18:46)
> arch_timer.h includes linux/smp.h since the commit:
>
>   6acc71ccac7187fc ("arm64: arch_timer: Allows a CPU-specific erratum to only affect a subset of CPUs")
>
> It was included to use DEFINE_PER_CPU(), etc. But It should have
> included <linux/percpu.h> rather than <linux/smp.h>. It worked because
> smp.h includes percpu.h.
>
> The next commit will remove percpu.h from smp.h and it will break this
> usage.
>
> Explicitly include percpu.h and remove smp.h
>
> Signed-off-by: Puranjay Mohan <puranjay@...nel.org>
> Acked-by: Mark Rutland <mark.rutland@....com>
> ---

Reviewed-by: Stephen Boyd <swboyd@...omium.org>