[PATCH V6] UBI: Extend UBI layer debug/messaging capabilities

[Tanya Brokhman]

On 11/11/2014 10:56 AM, Richard Weinberger wrote:
> Am 11.11.2014 um 09:34 schrieb Joe Perches:
>> On Tue, 2014-11-11 at 10:24 +0200, Tanya Brokhman wrote:
>>> On 11/10/2014 7:57 PM, Joe Perches wrote:
>>>> On Mon, 2014-11-10 at 18:37 +0100, Richard Weinberger wrote:
>>>>> Am 03.11.2014 um 14:58 schrieb Tanya Brokhman:
>>>>>> If there is more then one UBI device mounted, there is no way to
>>>>>> distinguish between messages from different UBI devices.
>>>>>> Add device number to all ubi layer message types.
>>>>
>>>> Adding "error" and "warning" to the message logs is
>>>> duplicative to the KERN_<LEVEL> logging information.
>>>>
>>>>>> Changes from V5:
>>>>>> 	- Added ptr verification @ ubi_err/ubi_msg/ubi_warn
>>>>>> 	Removed extra printing of ubi number
>>>>>> 	Removed new messages.
>>>>
>>>> Did you all ever look at what I posted?
>>>
>>> I did. Its not my place to re-post your change in my patch. I personally
>>> prefer it the way I've done it but it's just a matter of opinion and
>>> personal preference.
>>
>> Don't forget object code size.
>
> That's a good point.
> Tanya's patch is already in linux-ubifs.git (http://git.infradead.org/linux-ubifs.git).
> Later we could patch ubi.h to use Joe's log functions.

I'm sorry, but I think I'm giving up on all attempts to make everyone 
happy with "fixes" on top of the merged patch since I like it the way it 
is and there are just too many opinions on this. It should have been 
just a small patch to help everyone in debugging just as it helped me....
And I do think function name is useful. You don't have to agree with me, 
I can keep this internal in my code.

Artem - since you're the final call on this please list what you would 
like me to upload in regards to this and I'll post another version.

>
> But first I'd like to fix the logging style.
> I'm really unhappy with it.
>
> The patch does much more that the commit messages says:
> "If there is more then one UBI device mounted, there is no way to
> distinguish between messages from different UBI devices.
> Add device number to all ubi layer message types.
>
> The R/O block driver messages were replaced by pr_* since
> ubi_device structure is not used by it."
>
> There is no hint that it adds the function name to every log message.
> If so, I'd have nack'ed the patch.
>
> Thanks,
> //richard
>
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Thanks,
Tanya Brokhman
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