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Re: Intel PT decoder switch case fallthrough cases reported by gcc 7

From Andi Kleen <andi@firstfloor.org>
Newsgroups linux.kernel
Subject Re: Intel PT decoder switch case fallthrough cases reported by gcc 7
Date 2017-02-09 19:50 +0100
Message-ID <t91X4-1gs-5@gated-at.bofh.it> (permalink)
References <t90eB-98-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, Feb 09, 2017 at 01:50:39PM -0300, Arnaldo Carvalho de Melo wrote:
> Hi,
> 
> 	I've updated the container with Fedora Rawhide I use to build
> tools/perf/ and samples/bcc/ and it now comes with gcc 7, where I get
> things like:

FWIW, but it just shows that you should never ship software with -Werror
enabled. New compiler releases add new warnings, and you just randomly
break the build for users who use newer compilers.

It's ok to use in your own builds, but should never be default.

The kernel gets it right, but perf is wrong here.

-Andi

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Thread

Intel PT decoder switch case fallthrough cases reported by gcc 7 Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-02-09 18:00 +0100
  Re: Intel PT decoder switch case fallthrough cases reported by gcc 7 Andi Kleen <andi@firstfloor.org> - 2017-02-09 19:50 +0100
    Re: Intel PT decoder switch case fallthrough cases reported by gcc 7 Andi Kleen <andi@firstfloor.org> - 2017-02-09 20:20 +0100
      Re: Intel PT decoder switch case fallthrough cases reported by gcc 7 Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-02-09 20:30 +0100
    Re: Intel PT decoder switch case fallthrough cases reported by gcc 7 Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-02-09 20:20 +0100

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