Re: [v3 2/3] coccinelle: api: extend memdup_user rule with vmemdup_user()

[Markus Elfring]

>> Under which circumstances would you begin to care more for involved differences
>> in corresponding run time characteristics?
>
> When the difference is hours vs seconds.

Such a view can be influenced by execution environments in considerable ways.


> In this case, there are tradeoffs between the two options,

I am trying to improve the awareness for possible software design variations.


> andI don't know which would be faster,

I am curious if more contributors would get into the mood to compare
data processing approaches a bit more.


> but I think it is extremely unlikely that the difference is noticible.

But the following effects may be known for the evaluation of a SmPL rule
which was combined for two code parts.

* The SmPL dependencies are checked only once.

* Can the source code search efforts be reduced a bit?


> But if you are concerned about it, you are welcome to try.

Will anybody become interested to measure the software behaviour exactly?

Regards,
Markus