Re: [PATCH] Input: Do not add SYN_REPORT in between a single packet data

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On Thu, Apr 7, 2016 at 2:13 AM, Aniroop Mathur <aniroop.mathur@xxxxxxxxx> wrote:
> Hello Mr. Henrik,
>
> On Thu, Apr 7, 2016 at 1:21 AM, Henrik Rydberg <rydberg@xxxxxxxxxxx> wrote:
>> Hi Aniroop,
>>
>>>> I am not sure what the urgency is. It is more of a theoretical problem
>>>> ans so far the proposed solutions were actually introducing more
>>>> problems than they were solving.
>>>>
>>>> I am sorry, bit this particular topic is not a priority for me.
>>>>
>>>
>>> There is no hurry at all. :-) As you know request is made a long time ago,
>>> so I am only very curious to complete it.
>>
>> This kind of patch is not liked by any maintainer, because it does not solve any
>> immediate problem, but instead may create one. If such a simple patch takes
>> three of four tries to look right, it only adds to the perception that the code
>> is best left alone.
>>
>> I think the solution at this stage is to say no to this patch.
>>
>> If there is ever a driver for which the input_estimate_events_per_packet()
>> function returns less than the actual maximum number of events per frame, this
>> issue can be revisited and resolved in a number of different ways.
>>
>> Sorry, and thanks for your work.
>>
>
> Well, I agree this code might not be used by any driver so far.
> But if some driver developer writes such a driver, then it definitely cannot
> work well because of the bug in input subsystem code. So I am afraid that it
> is not a good idea to wait for someone to report this bug when we already know
> that the bug does exist in input core.
>
> Secondly, I submitted this patch not only because it breaks protocol of
> SYN_REPORT event but also because without this bug fix, another bug could not
> be concluded which depends on when the input event packet ended really.
> Bug:
> Input: evdev: fix bug of dropping valid packet after syn_dropped event
> https://patchwork.kernel.org/patch/8083641/
> So to fix this bug, we need to fix SYN_REPORT bug first.
>
> It would be appreciating of you if you could give it one more spin.
>
>

Hello Mr. Torokhov,

Would you please update further about this patch?

Thanks,
Aniroop Mathur
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