Re: [PATCH 03/11] cirrus/mac89x0: print MAC via printk format specifier

[Geert Uytterhoeven]

On Fri, Feb 24, 2012 at 14:45, Danny Kukawka <danny.kukawka@xxxxxxxxx> wrote:
> Print MAC/dev_addr via printk extended format specifier %pM instead
> of custom code.
>
> Use memcpy to set the address to dev->dev_addr in set_mac_address,
> instead of mxing it up in a for loop with printing a debug msg.
>
> Check also if the given address is valid.

Why do you sneak in this check in this patch?

> Signed-off-by: Danny Kukawka <danny.kukawka@xxxxxxxxx>
> ---
> Âdrivers/net/ethernet/cirrus/mac89x0.c | Â 12 ++++++++----
> Â1 files changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/ethernet/cirrus/mac89x0.c b/drivers/net/ethernet/cirrus/mac89x0.c
> index 83781f3..a7324ce 100644
> --- a/drivers/net/ethernet/cirrus/mac89x0.c
> +++ b/drivers/net/ethernet/cirrus/mac89x0.c
> @@ -592,10 +592,14 @@ static void set_multicast_list(struct net_device *dev)
> Âstatic int set_mac_address(struct net_device *dev, void *addr)
> Â{
> Â Â Â Âint i;
> - Â Â Â printk("%s: Setting MAC address to ", dev->name);
> - Â Â Â for (i = 0; i < 6; i++)
> - Â Â Â Â Â Â Â printk(" %2.2x", dev->dev_addr[i] = ((unsigned char *)addr)[i]);
> - Â Â Â printk(".\n");
> + Â Â Â struct sockaddr *saddr = addr;
> +
> + Â Â Â if (!is_valid_ether_addr(addr->sa_data))
> + Â Â Â Â Â Â Â return -EADDRNOTAVAIL;
> +
> + Â Â Â memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
> + Â Â Â printk("%s: Setting MAC address to %pM\n", dev->name, dev->dev_addr);
> +
> Â Â Â Â/* set the Ethernet address */
> Â Â Â Âfor (i=0; i < ETH_ALEN/2; i++)
> Â Â Â Â Â Â Â Âwritereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8));

Gr{oetje,eeting}s,

            Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
             Â Â -- Linus Torvalds
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