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Groups > linux.kernel > #1592713

Arrays of variable length

From Tomas Winkler <tomasw@gmail.com>
Newsgroups linux.kernel
Subject Arrays of variable length
Date 2017-03-05 10:50 +0100
Message-ID <thAXE-6JA-19@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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Sparse complains for arrays declared with variable length

'warning: Variable length array is used'

Prior to c99 this was not allowed but lgcc (c99) doesn't have problem
with that  https://gcc.gnu.org/onlinedocs/gcc/Variable-Length.html.
And also Linux kernel compilation with W=1 doesn't complain.

Since sparse is used extensively would like to ask what is the correct
usage of arrays of variable length
within Linux Kernel.


Thanks
Tomas

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Thread

Arrays of variable length Tomas Winkler <tomasw@gmail.com> - 2017-03-05 10:50 +0100
  Re: Arrays of variable length Al Viro <viro@ZenIV.linux.org.uk> - 2017-03-05 11:10 +0100
  Re: Arrays of variable length Måns Rullgård <mans@mansr.com> - 2017-03-05 16:50 +0100
    Re: Arrays of variable length Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2017-03-05 22:20 +0100
      Re: Arrays of variable length Richard Weinberger <richard.weinberger@gmail.com> - 2017-03-05 23:00 +0100
      Re: Arrays of variable length Måns Rullgård <mans@mansr.com> - 2017-03-06 01:40 +0100
        Re: Arrays of variable length Tomas Winkler <tomasw@gmail.com> - 2017-03-09 09:10 +0100
          Re: Arrays of variable length Måns Rullgård <mans@mansr.com> - 2017-03-09 14:10 +0100
            Re: Arrays of variable length Tomas Winkler <tomasw@gmail.com> - 2017-03-09 15:00 +0100
              Re: Arrays of variable length Måns Rullgård <mans@mansr.com> - 2017-03-09 15:20 +0100
                Re: Arrays of variable length Tomas Winkler <tomasw@gmail.com> - 2017-03-09 15:30 +0100
                Re: Arrays of variable length Måns Rullgård <mans@mansr.com> - 2017-03-09 15:50 +0100
                Re: Arrays of variable length Tomas Winkler <tomasw@gmail.com> - 2017-03-09 15:30 +0100
                Re: Arrays of variable length Måns Rullgård <mans@mansr.com> - 2017-03-09 15:50 +0100

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