Re: [PATCH 2.6.20] wavelan: Use ARRAY_SIZE macro when appropriate

Ahmed S. Darwish
2007-02-06T09:35:09Z

On Mon, Feb 05, 2007 at 11:17:09PM +0300, Alexey Dobriyan wrote:
> On Mon, Feb 05, 2007 at 07:00:44PM +0200, Ahmed S. Darwish wrote:
> > A trivial patch to use ARRAY_SIZE macro.
>
> You're supposed to remove it ans use ARRAY_SIZE where old macro is used.
>
> > --- a/drivers/net/wireless/wavelan.p.h
> > +++ b/drivers/net/wireless/wavelan.p.h
> > @@ -450,7 +450,7 @@ static const char *version = "wavelan.c : v24 (SMP + wireless extensions) 11/12/
> > #define WATCHDOG_JIFFIES (512*HZ/100)
> >
> > /* Macro to get the number of elements in an array */
> > -#define NELS(a) (sizeof(a) / sizeof(a[0]))
> > +#define NELS(a) ARRAY_SIZE(a)

Ooh, how dumb the original patch is :). Thanks, here's the modified patch.

A patch to use ARRAY_SIZE macro when appropriate.

Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
---
diff --git a/drivers/net/wireless/wavelan.c b/drivers/net/wireless/wavelan.c
index 24221e4..2aa3c76 100644
--- a/drivers/net/wireless/wavelan.c
+++ b/drivers/net/wireless/wavelan.c
@@ -28,7 +28,7 @@
*/
static u8 wv_irq_to_psa(int irq)
{
- if (irq < 0 || irq >= NELS(irqvals))
+ if (irq < 0 || irq >= ARRAY_SIZE(irqvals))
return 0;

return irqvals[irq];
@@ -42,7 +42,7 @@ static int __init wv_psa_to_irq(u8 irqval)
{
int irq;

- for (irq = 0; irq < NELS(irqvals); irq++)
+ for (irq = 0; irq < ARRAY_SIZE(irqvals); irq++)
if (irqvals[irq] == irqval)
return irq;

@@ -1695,7 +1695,7 @@ static int wv_frequency_list(unsigned long ioaddr, /* I/O port of the card */
/* Look in the table if the frequency is allowed */
if (table[9 - (freq / 16)] & (1 << (freq % 16))) {
/* Compute approximate channel number */
- while ((c < NELS(channel_bands)) &&
+ while ((c < ARRAY_SIZE(channel_bands)) &&
(((channel_bands[c] >> 1) - 24) < freq))
c++;
list[i].i = c; /* Set the list index */
@@ -4269,7 +4269,7 @@ struct net_device * __init wavelan_probe(int unit)
printk(KERN_DEBUG "%s: <-wavelan_probe()\n", dev->name);
#endif
} else { /* Scan all possible addresses of the WaveLAN hardware. */
- for (i = 0; i < NELS(iobase); i++) {
+ for (i = 0; i < ARRAY_SIZE(iobase); i++) {
dev->irq = def_irq;
if (wavelan_config(dev, iobase[i]) == 0) {
#ifdef DEBUG_CALLBACK_TRACE
@@ -4280,7 +4280,7 @@ struct net_device * __init wavelan_probe(int unit)
break;
}
}
- if (i == NELS(iobase))
+ if (i == ARRAY_SIZE(iobase))
r = -ENODEV;
}
if (r)
@@ -4327,14 +4327,14 @@ int __init init_module(void)
#endif

/* Copy the basic set of address to be probed. */
- for (i = 0; i < NELS(iobase); i++)
+ for (i = 0; i < ARRAY_SIZE(iobase); i++)
io[i] = iobase[i];
}

/* Loop on all possible base addresses. */
i = -1;
- while ((io[++i] != 0) && (i < NELS(io))) {
+ while ((io[++i] != 0) && (i < ARRAY_SIZE(io))) {
struct net_device *dev = alloc_etherdev(sizeof(net_local));
if (!dev)
break;
diff --git a/drivers/net/wireless/wavelan.p.h b/drivers/net/wireless/wavelan.p.h
index 72b646c..fe24281 100644
--- a/drivers/net/wireless/wavelan.p.h
+++ b/drivers/net/wireless/wavelan.p.h
@@ -449,9 +449,6 @@ static const char *version = "wavelan.c : v24 (SMP + wireless extensions) 11/12/
/* Watchdog temporisation */
#define WATCHDOG_JIFFIES (512*HZ/100)

-/* Macro to get the number of elements in an array */
-#define NELS(a) (sizeof(a) / sizeof(a[0]))
-
/* ------------------------ PRIVATE IOCTL ------------------------ */

#define SIOCSIPQTHR SIOCIWFIRSTPRIV /* Set quality threshold */