[ath9k-devel] [PATCH v3 2/3] ath9k: add a helper to get the string representation of ath_bus_type

[Martin Blumenstingl <martin.blumenstingl@googlemail.com>]

On Mon, Jun 27, 2016 at 12:26 PM, Felix Fietkau <nbd@nbd.name> wrote:
> On 2016-06-24 14:34, Martin Blumenstingl wrote:
>> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
>> ---
>> this is a new patch which didn't exist in v2 yet, it prepares the new
>> function ath_bus_type_to_string which will be used in patch #3
>>
>>  drivers/net/wireless/ath/ath.h  |  2 ++
>>  drivers/net/wireless/ath/main.c | 15 +++++++++++++++
>>  2 files changed, 17 insertions(+)
>>
>> diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
>> index da7a7c8..be0d292 100644
>> --- a/drivers/net/wireless/ath/ath.h
>> +++ b/drivers/net/wireless/ath/ath.h
>> @@ -327,4 +327,6 @@ static inline const char *ath_opmode_to_string(enum nl80211_iftype opmode)
>>  }
>>  #endif
>>
>> +const char *ath_bus_type_to_string(enum ath_bus_type bustype);
>> +
>>  #endif /* ATH_H */
>> diff --git a/drivers/net/wireless/ath/main.c b/drivers/net/wireless/ath/main.c
>> index 338d723..90427cb 100644
>> --- a/drivers/net/wireless/ath/main.c
>> +++ b/drivers/net/wireless/ath/main.c
>> @@ -90,3 +90,18 @@ void ath_printk(const char *level, const struct ath_common* common,
>>       va_end(args);
>>  }
>>  EXPORT_SYMBOL(ath_printk);
>> +
>> +const char *ath_bus_type_to_string(enum ath_bus_type bustype)
>> +{
>> +     switch (bustype) {
>> +     case ATH_PCI:
>> +             return "pci";
>> +     case ATH_AHB:
>> +             return "ahb";
>> +     case ATH_USB:
>> +             return "usb";
>> +     default:
>> +             return "unknown";
>> +     }
>> +}
>> +EXPORT_SYMBOL(ath_bus_type_to_string);
> Why not simply add a const char* array with ath_bus_type as index?
Would you add this const char* array directly in ath.h or would you
define it as extern there and set it in main.c?
I would still provide the ath_bus_type_to_string function, but make it
static inline in that case.