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Subject: Re: svn commit: r295768 - head/usr.sbin/iostat
From: David Chisnall <theraven@FreeBSD.org>
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Date: Mon, 22 Feb 2016 09:56:05 +0000
Cc: Alan Somers <asomers@freebsd.org>, Sergey Kandaurov <pluknet@gmail.com>,
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To: Dimitry Andric <dim@FreeBSD.org>
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On 19 Feb 2016, at 23:23, Dimitry Andric <dim@FreeBSD.org> wrote:
>=20
> This warning is only produced when you use -Wall -W, and then =
initialize
> structs partially, i.e. you initialize some fields but not others.  I
> think this is a quite reasonable warning for a high warning level.

The warning is annoying in many ways.  You ought to be able to zero =
initialise any struct with {0}, but clang objects if you do this and =
requires every field to be filled in.  This warning really shouldn=E2=80=99=
t be enabled with -Wall, because it has too hight a false positive rate.

With regard to Bruce=E2=80=99s comment about padding, this is a known =
issue in C11.  There is an open DR about it and it=E2=80=99s scheduled =
for discussion at the WG14 meeting in London in April.

David