Re: [PATCH] x86: suppress sparse warning in copy_to_user()

From	"Jan Beulich" <JBeulich@suse.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] x86: suppress sparse warning in copy_to_user()
Date	2016-10-04 11:10 +0200
Message-ID	<sotTA-Ep-27@gated-at.bofh.it> (permalink)
References	<sosut-7Z7-7@gated-at.bofh.it> <sosNP-87P-13@gated-at.bofh.it> <sosXw-8rq-5@gated-at.bofh.it> <sotqy-cY-3@gated-at.bofh.it> <sotAd-he-9@gated-at.bofh.it>
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>>> On 04.10.16 at 10:49, <johannes@sipsolutions.net> wrote:
>> > > If that was the case, everyone should have seen such warnings
>> > > from the day the original patch got introduced. 
>> > 
>> > Only if they run sparse. Clearly people don't, or we wouldn't have
>> > a history of a ton of such problems, e.g.
>> 
>> No - you say "which gcc declares with (void *, int type) prototype".
>> If that was the case, there would need to be a warning.
> 
> There would need to be a warning when?

If the declaration used "void *" instead of "const void *".

Jan

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[PATCH] x86: suppress sparse warning in copy_to_user() Johannes Berg <johannes@sipsolutions.net> - 2016-10-04 09:40 +0200
  Re: [PATCH] x86: suppress sparse warning in copy_to_user() "Jan Beulich" <JBeulich@suse.com> - 2016-10-04 10:00 +0200
    Re: [PATCH] x86: suppress sparse warning in copy_to_user() Johannes Berg <johannes@sipsolutions.net> - 2016-10-04 10:10 +0200
      Re: [PATCH] x86: suppress sparse warning in copy_to_user() "Jan Beulich" <JBeulich@suse.com> - 2016-10-04 10:40 +0200
        Re: [PATCH] x86: suppress sparse warning in copy_to_user() Johannes Berg <johannes@sipsolutions.net> - 2016-10-04 10:50 +0200
          Re: [PATCH] x86: suppress sparse warning in copy_to_user() "Jan Beulich" <JBeulich@suse.com> - 2016-10-04 11:10 +0200

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