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

[Ajay Bhargav]

----- "Marek Vasut" <marek.vasut at gmail.com> wrote:

> 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.
> 

Thanks Marek, Yes it looks much better :) see the plus point on working with experts rather
running away? :D

Regards,
Ajay Bhargav