linux-kernel - Re: [PATCH] cpufreq: fix qoriq uniprocessor build

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Message-ID: <CAKohpomGUfYsuFnCN3y_=WOG44sbVNy4OFTQ6VFy+69dOhj9kw@mail.gmail.com>
Date:	Sat, 11 Apr 2015 08:32:58 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Tang Yuantian <Yuantian.Tang@...escale.com>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] cpufreq: fix qoriq uniprocessor build

On 11 April 2015 at 03:47, Arnd Bergmann <arnd@...db.de> wrote:
> The qoriq-cpufreq driver contains a hack for powerpc to include
> asm/smp.h on uniprocessor builds so it can get the hardware CPU
> number. On ARM, it does not require this hack, but instead gets
> a compile error:
>
> In file included from drivers/cpufreq/qoriq-cpufreq.c:24:0:
> arch/arm/include/asm/smp.h:18:3: error: #error "<asm/smp.h> included in non-SMP build"
> arch/arm/include/asm/smp.h:21:0: warning: "raw_smp_processor_id" redefined
>
> This adds an #ifdef to mirror the one in its get_cpu_physical_id()
> function.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: 2f249358eedaf ("cpufreq: qoriq: rename the driver")
> Cc: Tang Yuantian <Yuantian.Tang@...escale.com>
>
> diff --git a/drivers/cpufreq/qoriq-cpufreq.c b/drivers/cpufreq/qoriq-cpufreq.c
> index 9fd51c860308..88b21ae0d6b0 100644
> --- a/drivers/cpufreq/qoriq-cpufreq.c
> +++ b/drivers/cpufreq/qoriq-cpufreq.c
> @@ -21,7 +21,9 @@
>  #include <linux/slab.h>
>  #include <linux/smp.h>
>
> +#if !defined(CONFIG_ARM)
>  #include <asm/smp.h>   /* for get_hard_smp_processor_id() in UP configs */
> +#endif

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
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