[PATCH V2] b43: be more user friendly with PHY info

[Rafał Miłecki]

2012/7/25 Joe Perches <joe at perches.com>:
> On Wed, 2012-07-25 at 16:47 +0200, Rafał Miłecki wrote:
>> use PHY names instead of magic numbers.
> []
>> diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
> []
>> @@ -4277,6 +4277,37 @@ out:
> []
>> +static char *b43_phy_name(struct b43_wldev *dev, u8 phy_type)
>> +{
>> +     switch (phy_type) {
>> +     case B43_PHYTYPE_A:
>> +             return "A";
> []
>> +     }
>> +
>> +     b43err(dev->wl, "Unknown PHY Type: %d\n", phy_type);
>> +     return "UNKNOWN";
>
> In general, it's a bad idea to emit error messages
> in a generic call like this.

This function is not supposed to be called anywhere else, it's only
for a single user-friendly message.


>> @@ -4337,13 +4368,12 @@ static int b43_phy_versioning(struct b43_wldev *dev)
>>               unsupported = 1;
>>       }
>>       if (unsupported) {
>> -             b43err(dev->wl, "FOUND UNSUPPORTED PHY "
>> -                    "(Analog %u, Type %u, Revision %u)\n",
>> -                    analog_type, phy_type, phy_rev);
>> +             b43err(dev->wl, "FOUND UNSUPPORTED PHY (Analog %u, Type %s, Revision %u)\n",
>> +                    analog_type, b43_phy_name(dev, phy_type), phy_rev);
>
> The extra message doesn't add much useful info
> and can also cause errors in continued messages.

By "extra message" do you mean the one from b43_phy_name? I wanted to
print PHY type as digit somewhere (in case it is not recognized). I
can't use simple
return ("UNKNOWN %d", phy_type);
, such a solution would require allocating memory for string and
freeing it. It would complicate the function.

Do you have any suggestion for better handling this?

-- 
Rafał