Joe Perches <j...@perches.com> wrote :
> On Tue, 2014-03-18 at 11:19 -0700, Byungho An wrote:
> > From: Siva Reddy <siva.kal...@samsung.com>
> >
> > This patch adds support for Samsung 10Gb ethernet driver(sxgbe).
>
> More trivia, nothing that should stop this from being applied and updated
> later...
>
> > diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_mdio.c
> > b/drivers/net/ethernet/samsung/sxgbe/sxgbe_mdio.c
> []
> > +static int sxgbe_mdio_busy_wait(void __iomem *ioaddr, unsigned int
> > +mii_data) {
> > + unsigned long cur_time;
> > + unsigned long fin_time = jiffies + 3 * HZ; /* 30 ms */
>
> This is actually 3 seconds.
> If this should be 30ms, then use msecs_to_jiffies(30)
This is a typo, comment will be changed to "3 sec".
>
> > +
> > + do {
> > + cur_time = jiffies;
> > + if (readl(ioaddr + mii_data) & SXGBE_MII_BUSY)
> > + cpu_relax();
> > + else
> > + return 0;
> > + } while (!time_after_eq(cur_time, fin_time));
> > +
> > + return -EBUSY;
> > +}
>
> This may be clearer as
>
> unsigned long fin_time = jiffies + msecs_to_jiffies(30);
>
> while (!time_after(jiffies, fin_time))
> if (!(readl(ioaddr + mii_data) & SXGBE_MII_BUSY))
> return 0;
> cpu_relax();
> }
>
> return -EBUSY;
OK.
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