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Groups > linux.kernel > #1310290

Re: gianfar: Delete unnecessary variable initialisations in gfar_ethflow_to_filer_table()

From SF Markus Elfring <elfring@users.sourceforge.net>
Newsgroups linux.kernel
Subject Re: gianfar: Delete unnecessary variable initialisations in gfar_ethflow_to_filer_table()
Date 2016-01-15 18:20 +0100
Message-ID <qRgcy-Lu-9@gated-at.bofh.it> (permalink)
References <qR9E7-4Gx-33@gated-at.bofh.it> <qR9Xs-4OZ-27@gated-at.bofh.it> <qRaTw-5pO-19@gated-at.bofh.it> <qRfJx-lq-9@gated-at.bofh.it>
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>>> This is a write only variable.  We can just remove it.
>>
>> Can a static source code analysis tool like the software "http://smatch.sourceforge.net/"
>> detect that such a variable is not read by this function implementation so far?
> 
> No,

I imagine that there are a few tools available which can point such update candidates out.
There are various software development challenges to consider.


> but a human can.

Some software developers and source code reviewers are struggling with mentioned
implementation details as usual. Do they also wonder how the discussed variable assignment
was left over in a specific function?


> I am going to be honest, and say that I am completely ignoring most of
> your static checker patches.

I am curious if you would reconsider the affected source code places once more
when you will be notified about related issues by other tools or persons.


> You don't put enough care and consideration into them,

Would you like to explain this impression a bit more?


> and I really don't have time to waste on looking at something like that.

Thanks for your feedback.

Various open issues are competing for our attention as usual.

Regards,
Markus

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Thread

[PATCH v3 0/3] gianfar: Fine-tuning for gfar_ethflow_to_filer_table() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-01-15 11:10 +0100
  [PATCH v3 3/3] gianfar: Extend an initialisation clause of a for loop  in gfar_ethflow_to_filer_table() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-01-15 11:20 +0100
  [PATCH v3 2/3] gianfar: Delete unnecessary variable initialisations  in gfar_ethflow_to_filer_table() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-01-15 11:20 +0100
    Re: [PATCH v3 2/3] gianfar: Delete unnecessary variable  initialisations in gfar_ethflow_to_filer_table() Dan Carpenter <dan.carpenter@oracle.com> - 2016-01-15 11:40 +0100
      Re: [PATCH v3 2/3] gianfar: Delete unnecessary variable  initialisations in gfar_ethflow_to_filer_table() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-01-15 12:40 +0100
        Re: [PATCH v3 2/3] gianfar: Delete unnecessary variable  initialisations in gfar_ethflow_to_filer_table() Dan Carpenter <dan.carpenter@oracle.com> - 2016-01-15 13:20 +0100
        Re: [PATCH v3 2/3] gianfar: Delete unnecessary variable  initialisations in gfar_ethflow_to_filer_table() David Miller <davem@davemloft.net> - 2016-01-15 17:50 +0100
          Re: gianfar: Delete unnecessary variable initialisations in  gfar_ethflow_to_filer_table() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-01-15 18:20 +0100
  [PATCH v3 1/3] gianfar: Less function calls in  gfar_ethflow_to_filer_table() after error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2016-01-15 11:20 +0100
    Re: [PATCH v3 1/3] gianfar: Less function calls in  gfar_ethflow_to_filer_table() after error detection Joe Perches <joe@perches.com> - 2016-01-15 11:40 +0100
      Re: gianfar: Less function calls in gfar_ethflow_to_filer_table()  after error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2016-01-15 12:50 +0100
        Re: gianfar: Less function calls in gfar_ethflow_to_filer_table()  after error detection Joe Perches <joe@perches.com> - 2016-01-15 13:10 +0100
          Re: gianfar: Less function calls in gfar_ethflow_to_filer_table()  after error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2016-01-15 18:40 +0100
            RE: gianfar: Less function calls in gfar_ethflow_to_filer_table()  after error detection Claudiu Manoil <claudiu.manoil@nxp.com> - 2016-01-18 15:50 +0100

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