Re: [PATCH] firmware: add a function to load optional firmware v2

From: Kalle Valo
Date: Tue Mar 13 2018 - 09:16:45 EST


"Luis R. Rodriguez" <mcgrof@xxxxxxxxxx> writes:

>> +/**
>> + * request_firmware_optional: - request for an optional fw module
>> + * @firmware_p: pointer to firmware image
>> + * @name: name of firmware file
>> + * @device: device for which firmware is being loaded
>> + *
>> + * This function is similar in behaviour to request_firmware(), except
>> + * it doesn't produce warning messages when the file is not found.
>> + **/
>> +int
>> +request_firmware_optional(const struct firmware **firmware_p, const char *name,
>> + struct device *device)
>> +{
>> + int ret;
>> +
>> + /* Need to pin this module until return */
>> + __module_get(THIS_MODULE);
>> + ret = _request_firmware(firmware_p, name, device, NULL, 0,
>> + FW_OPT_UEVENT | FW_OPT_NO_WARN );
>> + module_put(THIS_MODULE);
>> + return ret;
>> +}
>> +EXPORT_SYMBOL(request_firmware_optional);
>
> New exported symbols for the firmware API should be EXPORT_SYMBOL_GPL().

To me the word optional feels weird to me. For example, in ath10k I
suspect we would be only calling request_firmware_optional() with all
firmware and not request_firmware() at all.

How about request_firmware_nowarn()? That would even match the
documentation above.

--
Kalle Valo