linux-kernel - Re: [PATCH 12/19] OpenRISC: Scheduling/Process management

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Date:	Sun, 19 Jun 2011 21:12:25 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Jonas Bonn <jonas@...thpole.se>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 12/19] OpenRISC: Scheduling/Process management

On Sunday 19 June 2011 13:43:38 Jonas Bonn wrote:

> +#if 0
> +
> +/*
> + * The hlt_counter, disable_hlt and enable_hlt is just here as a hook if
> + * there would ever be a halt sequence (for power save when idle) with
> + * some largish delay when halting or resuming *and* a driver that can't
> + * afford that delay.  The hlt_counter would then be checked before
> + * executing the halt sequence, and the driver marks the unhaltable
> + * region by enable_hlt/disable_hlt.
> + */
> +
> +static int hlt_counter=0;

This can certainly be removed, it's only used by the floppy driver.

> +void machine_restart(void)
> +{
> +	printk("*** MACHINE RESTART ***\n");
> +	__asm__("l.nop 1");
> +}
> +
> +EXPORT_SYMBOL(machine_restart);
> +
> +/*
> + * Similar to machine_power_off, but don't shut off power.  Add code
> + * here to freeze the system for e.g. post-mortem debug purpose when
> + * possible.  This halt has nothing to do with the idle halt.
> + */
> +
> +void machine_halt(void)
> +{
> +	printk("*** MACHINE HALT ***\n");
> +	__asm__("l.nop 1");
> +}
> +
> +EXPORT_SYMBOL(machine_halt);
> +
> +/* If or when software power-off is implemented, add code here.  */
> +
> +void machine_power_off(void)
> +{
> +	printk("*** MACHINE POWER OFF ***\n");
> +	__asm__("l.nop 1");
> +}
> +
> +EXPORT_SYMBOL(machine_power_off);
> +
> +void (*pm_power_off)(void) = machine_power_off;
> +EXPORT_SYMBOL(pm_power_off);

I don't think any of these should be exported.

	Arnd
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