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

[Geert Uytterhoeven]

On Sat, Feb 25, 2012 at 11:15, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
> 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?

And it doesn't compile:

http://kisskb.ellerman.id.au/kisskb/buildresult/5752157/

drivers/net/ethernet/cirrus/mac89x0.c: In function âset_mac_addressâ:
drivers/net/ethernet/cirrus/mac89x0.c:597: warning: dereferencing
âvoid *â pointer
drivers/net/ethernet/cirrus/mac89x0.c:597: error: request for member
âsa_dataâ in something not a structure or union
drivers/net/ethernet/cirrus/mac89x0.c:600: warning: dereferencing
âvoid *â pointer
drivers/net/ethernet/cirrus/mac89x0.c:600: error: request for member
âsa_dataâ in something not a structure or union
drivers/net/ethernet/cirrus/mac89x0.c:595: warning: unused variable âsaddrâ

No patch included as I don't think this should have been applied as-is.

>> 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/