On Wed, 2012-07-04 at 16:18 +1000, Greg Ungerer wrote:
> Hi Joe,

Hi Greg.

> On 04/07/12 15:18, Joe Perches wrote:
> > On Wed, 2012-07-04 at 14:56 +1000, [email protected] wrote:
> >> From: Greg Ungerer <[email protected]>
> >>
> >> A number of older ColdFire CPU based boards use NS8390 based network
> >> controllers. Most use the Davicom 9008F or the UMC 9008F. This driver
> >> provides the support code to get these devices working on these platforms.
[]
> >> diff --git a/drivers/net/ethernet/8390/mcf8390.c 
> >> b/drivers/net/ethernet/8390/mcf8390.c
[]
> >> +static int mcf8390_init(struct net_device *dev)
> >> +{
> >> +  static u32 offsets[] = {
> >> +          0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
> >> +          0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
> >> +  };
> >
> > const?  u8?
> 
> That is assigned to the "reg_offset" field of "struct ei_device"
> (defined in the existing 8390.h) and that is:
> 
>      u32 *reg_offset;         /* Register mapping table */
> 
> So I can't change this.

Sure you can, you can assign a u8 to a u32 just fine.

The value fits in a u8.  Might as well make it take
less data space.  static const makes it read-only and
makes the compiler assign it just once instead of at
function invocation.

cheers, Joe

--
To unsubscribe from this list: send the line "unsubscribe linux-m68k" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to