[U-Boot] [PATCH v2 1/3] net: Adds Fast Ethernet Controller driver for Armada100

[Marek Vasut]

On Thursday, August 25, 2011 01:07:32 PM Ajay Bhargav wrote:
> ----- "Marek Vasut" <marek.vasut at gmail.com> wrote:
> 
> [...]
> 
> > > +static void abortdma(struct eth_device *dev)
> > > +{
> > > +	struct armdfec_device *darmdfec = to_darmdfec(dev);
> > > +	struct armdfec_reg *regs = darmdfec->regs;
> > > +	int delay;
> > > +	int maxretries = 40;
> > > +
> > > +	do {
> > > +		writel(SDMA_CMD_AR | SDMA_CMD_AT, &regs->sdma_cmd);
> > > +		udelay(100);
> > > +
> > > +		delay = 10;
> > > +		while ((readl(&regs->sdma_cmd) &
> > > +			(SDMA_CMD_AR | SDMA_CMD_AT))
> > > +			&& delay-- > 0) {
> > > +			udelay(10);
> > > +		}
> > > +	} while (maxretries-- > 0 && delay <= 0);
> > 
> > Didn't I comment on this one in V1?
> 
> I modified it as follows... Is it more readable now? :)
> 
> while (maxretries--) {
> 	writel(SDMA_CMD_AR | SDMA_CMD_AT, &regs->sdma_cmd);
> 	udelay(100);
> 
> 	delay = 10;
> 	while ((readl(&regs->sdma_cmd) & (SDMA_CMD_AR | SDMA_CMD_AT))
> 			&& delay--)
> 		udelay(10);
> 	if(delay)
> 		break;

 	delay = 10;
 	while (--delay) {
		tmp = readl(&regs->sdma_cmd);
		if (!(tmp & (SDMA_CMD_AR | SDMA_CMD_AT))
			break;
 		udelay(10);
	}
 	if (delay)
 		break;

It makes the code horizontally shorter. What do you think? Btw there's a rule in 
U-Boot that multi-line statements must have braces.

> }
> 
> Regards,
> Ajay Bhargav