Re: [PATCH 2/2] ata: libata-core: Improve ata_dev_power_set_active()

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On Fri, Oct 13, 2023 at 11:14:09AM -0400, Phillip Susi wrote:
> Damien Le Moal <dlemoal@xxxxxxxxxx> writes:
> >  /**
> >   *	ata_dev_power_set_active -  Set a device power mode to active
> >   *	@dev: target device
> > @@ -2065,6 +2092,13 @@ void ata_dev_power_set_active(struct ata_device *dev)
> >  	if (!ata_dev_power_init_tf(dev, &tf, true))
> >  		return;
> >  
> > +	/*
> > +	 * Check the device power state & condition and force a spinup with
> > +	 * VERIFY command only if the drive is not already ACTIVE or IDLE.
> > +	 */
> > +	if (ata_dev_power_is_active(dev))
> > +		return;
> > +
> >  	ata_dev_notice(dev, "Entering active power mode\n");
> >  
> >  	err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0, 0);
> 
> This bit didn't apply cleanly to what I just pulled from Linus.  It
> seems there are soem differences in how the tf is set up.  Why not move
> this check to before the tf is set up?  There isn't much point in
> setting it up if it isn't going to be used.

Hello Phillip,

This series applies cleanly to:
https://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata.git/log/?h=for-next

The for-next branch also has a bunch of suspend/resume patches that will
not go in to v6.6.


Kind regards,
Niklas



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