Re: [PATCH] HPE BMC GXP SUPPORT

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On Fri, Feb 04, 2022 at 04:18:24AM -0800, Joe Perches wrote:
> On Fri, 2022-02-04 at 12:05 +0000, Russell King (Oracle) wrote:
> > On Wed, Feb 02, 2022 at 10:52:50AM -0600, nick.hawkins@xxxxxxx wrote:
> > > +	if (readb_relaxed(timer->control) & MASK_TCS_TC) {
> > > +		writeb_relaxed(MASK_TCS_TC, timer->control);
> > > +
> > > +		event_handler = READ_ONCE(timer->evt.event_handler);
> > > +		if (event_handler)
> > > +			event_handler(&timer->evt);
> > > +		return IRQ_HANDLED;
> > > +	} else {
> > > +		return IRQ_NONE;
> > > +	}
> > > +}
> 
> It's also less indented code and perhaps clearer to reverse the test
> 
> 	if (!readb_relaxed(timer->control) & MASK_TCS_TC)

This will need to be:

 	if (!(readb_relaxed(timer->control) & MASK_TCS_TC))

> 		return IRQ_NONE;
> 
> 	writeb_relaxed(MASK_TCS_TC, timer->control);
> 
> 	event_handler = READ_ONCE(timer->evt.event_handler);
> 	if (event_handler)
> 		event_handler(&timer->evt);
> 
> 	return IRQ_HANDLED;
> 
> 
> 

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