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Re: [RFC PATCH 2/4] xen/arm64: bitops: justify uninitialized variable inside a macro


  • To: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
  • From: Luca Fancellu <Luca.Fancellu@xxxxxxx>
  • Date: Fri, 14 Jul 2023 14:36:14 +0000
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  • Thread-topic: [RFC PATCH 2/4] xen/arm64: bitops: justify uninitialized variable inside a macro

>>>           "id": "SAF-2-safe",
>>> +            "analyser": {
>>> +                "eclair": "MC3R1.R9.1"
>>> +            },
>>> +            "name": "Rule 9.1: initializer not needed",
>>> +            "text": "The following local variables are possibly subject to 
>>> being read before being written, but code inspection ensured that the 
>>> control flow in the construct where they appear ensures that no such event 
>>> may happen."
>>> +        },
>>> +        {
>>> +            "id": "SAF-3-safe",
>>> +            "analyser": {
>>> +                "eclair": "MC3R1.R9.1"
>>> +            },
>>> +            "name": "Rule 9.1: initializer not needed",
>>> +            "text": "The following local variables are possibly subject to 
>>> being read before being written, but code inspection ensured that the 
>>> control flow in the construct where they appear ensures that no such event 
>>> may happen."
>>> +        },
>> 
>> Since the rule and the justification are the same, you can declare only once 
>> and use the same tag on top of the offending lines, so /* SAF-2-safe 
>> MC3R1.R9.1 */,
>> also, I remember some maintainers not happy about the misra rule being put 
>> after the tag, now I don’t recall who
> 
> Sorry, I see there was in a patch before a SAF-1-safe with the same 
> justification, so I suggest you use SAF-3-safe as tag and drop the new 
> justifications introduced here

I meant “use SAF-1-safe”, sorry, I should do less multitasking


 


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