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Re: Notes from FuSa meeting 2022-06-22 about Deviations
- To: Stefano Stabellini <sstabellini@xxxxxxxxxx>
- From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Date: Tue, 28 Jun 2022 09:37:15 +0200
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On Mon, Jun 27, 2022 at 12:23:32PM -0700, Stefano Stabellini wrote:
> Hi all,
>
> These are some of the notes that I took today during the meeting about
> deviations
>
> Cheers,
>
> Stefano
>
>
> ---
>
>
> reasons for deviations:
> - code quality
> - access to hardware (need compiler extensions to access hardware)
> - adopted code integration
> - non-compliant adopted code
>
> Purpose of tagging:
> - I don't want to see this report from the tools again
> - This is the reason why I am deviating
>
>
> Tags:
> - adopted
> this is adopted code
> - safe
> it is a violation but actually the code is safe
> - relied
> this is for adopted code again and only concern dev confusion
> - false-positive
> - compliant
> for *possible* violations which are safe
> - false-negative
> Flagging a violation that is present in the code even if the tool
> doesn't spot it. Probably not applicable to Xen as we want to enable
> multiple tools
>
>
> Probably none of our code can be claimed to be "adopted" according to
> MISRA, even the one coming from Linux.
So that would limit the tags that we use to: safe, compliant and
false-positive?
I'm not sure the difference between safe and compliant is worth having
a different tag: both will need a written justification anyway. Maybe
would be clearer if there was some example of the different usage of
safe vs compliant.
Thanks, Roger.
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