Re: [PATCH v3 5/7] venus: Add debugfs interface to set firmware log level

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Hi Greg,

Thanks for the comments!

On 6/9/20 2:12 PM, Greg Kroah-Hartman wrote:
> On Tue, Jun 09, 2020 at 01:46:02PM +0300, Stanimir Varbanov wrote:
>> +int venus_dbgfs_init(struct venus_core *core)
>> +{
>> +	core->root = debugfs_create_dir("venus", NULL);
>> +	if (IS_ERR(core->root))
>> +		return IS_ERR(core->root);
> 
> You really do not care, and obviously did not test this on a system with
> CONFIG_DEBUG_FS disabled :)

Probably not :(

> 
> Just make the call to debugfs, and move on, feed it into other debugfs
> calls, all is good.
> 
> This function should just return 'void', no need to care about this at
> all.
> 
>> +	ret = venus_sys_set_debug(hdev, venus_fw_debug);
>> +	if (ret)
>> +		dev_warn(dev, "setting fw debug msg ON failed (%d)\n", ret);
> 
> Why do you care about this "error"?

I don't care so much, that's why it is dev_warn. But if I enable debug
messages from the firmware and I don't see them this warn will give me
an idea why.


-- 
regards,
Stan



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