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Re: [RFC v2 PATCH 09/14] MIPS: add support for generic SMP IPI support

From Thomas Gleixner <tglx@linutronix.de>
Newsgroups linux.kernel
Subject Re: [RFC v2 PATCH 09/14] MIPS: add support for generic SMP IPI support
Date 2015-10-13 15:50 +0200
Message-ID <qj87M-8dT-13@gated-at.bofh.it> (permalink)
References <qj4Qx-3vO-3@gated-at.bofh.it> <qj4Qy-3vO-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, 13 Oct 2015, Qais Yousef wrote:
>  
> +#ifdef CONFIG_GENERIC_IRQ_IPI
> +void generic_smp_send_ipi_single(int cpu, unsigned int action)

Please use a mips name space. This suggests that it s completely
generic, which is not true.

> +{
> +	generic_smp_send_ipi_mask(cpumask_of(cpu), action);
> +}
> +
> +void generic_smp_send_ipi_mask(const struct cpumask *mask, unsigned int action)

Ditto.

> +{
> +	unsigned long flags;
> +	unsigned int core;
> +	int cpu;
> +	struct ipi_mask ipi_mask;
> +
> +	ipi_mask.cpumask = ((struct cpumask *)mask)->bits;

We have accessors for that. Hmm, so for this case we must make the
ipi_mask different:

struct ipi_mask {
	unsigned int	nbits;
	bool		global;
	union {
       	     struct cpumask *mask;
	     unsigned long  cpu_bitmap[];
	};
};

Thanks,

	tglx
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Thread

[RFC v2 PATCH 09/14] MIPS: add support for generic SMP IPI support Qais Yousef <qais.yousef@imgtec.com> - 2015-10-13 12:20 +0200
  Re: [RFC v2 PATCH 09/14] MIPS: add support for generic SMP IPI  support Thomas Gleixner <tglx@linutronix.de> - 2015-10-13 15:50 +0200
    Re: [RFC v2 PATCH 09/14] MIPS: add support for generic SMP IPI  support Qais Yousef <qais.yousef@imgtec.com> - 2015-10-13 16:50 +0200

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