Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array

From	Fengguang Wu <fengguang.wu@intel.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array
Date	2017-03-18 01:50 +0100
Message-ID	<tmaJb-6zz-9@gated-at.bofh.it> (permalink)
References	(4 earlier) <tlZuq-6vs-19@gated-at.bofh.it> <tm4u5-21N-11@gated-at.bofh.it> <tm56O-2jb-11@gated-at.bofh.it> <tm5qb-2HS-31@gated-at.bofh.it> <tm5qb-2HS-35@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

Hi Dmitry,
 
On Fri, Mar 17, 2017 at 08:05:16PM +0100, Dmitry Vyukov wrote:
>On Fri, Mar 17, 2017 at 7:57 PM, Borislav Petkov <bp@alien8.de> wrote:
>> On Fri, Mar 17, 2017 at 07:47:33PM +0100, Dmitry Vyukov wrote:
>>> This problem is more general and is not specific to clang. It equally
>>> applies to different versions of gcc, different arches and different
>>> configs (namely, anything else than what a developer used for
>>> testing).
>>
>> I guess. We do carry a bunch of gcc workarounds along with the cc-*
>> macros in scripts/Kbuild.include.
>>
>>> A known, reasonably well working solution to this problem is
>>> a system of try bots that test patches before commit with different
>>> compilers/configs/archs. We already have such system in the form of
>>> 0-day bots. It would be useful to extend it with clang as soon as
>>> kernel builds.
>>
>> Has someone actually already talked to Fengguang about it?
>
>+Fengguang

I've actually tried clang long time ago. It quickly fails the build
for vanilla kernel. So it really depends on when the various clang
build fix patches can be accepted into mainline kernel.

Thanks,
Fengguang

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[PATCH 6/7] md/raid10, LLVM: get rid of variable length array Michael Davidson <md@google.com> - 2017-03-17 01:30 +0100
  Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Peter Zijlstra <peterz@infradead.org> - 2017-03-17 13:20 +0100
    Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Alexander Potapenko <glider@google.com> - 2017-03-17 13:40 +0100
      Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Peter Zijlstra <peterz@infradead.org> - 2017-03-17 13:50 +0100
        Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Michael Davidson <md@google.com> - 2017-03-17 20:30 +0100
          Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Peter Zijlstra <peterz@infradead.org> - 2017-03-17 21:10 +0100
            Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array hpa@zytor.com - 2017-03-17 21:50 +0100
              Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Dmitry Vyukov <dvyukov@google.com> - 2017-03-24 14:50 +0100
                Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Peter Zijlstra <peterz@infradead.org> - 2017-03-24 15:20 +0100
      Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Alexander Potapenko <glider@google.com> - 2017-03-17 13:50 +0100
        Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Borislav Petkov <bp@alien8.de> - 2017-03-17 19:10 +0100
          Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Dmitry Vyukov <dvyukov@google.com> - 2017-03-17 19:50 +0100
            Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Borislav Petkov <bp@alien8.de> - 2017-03-17 20:10 +0100
              Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Dmitry Vyukov <dvyukov@google.com> - 2017-03-17 20:10 +0100
                Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Peter Zijlstra <peterz@infradead.org> - 2017-03-17 20:40 +0100
                Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Dmitry Vyukov <dvyukov@google.com> - 2017-03-24 15:00 +0100
                Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Peter Zijlstra <peterz@infradead.org> - 2017-03-24 15:20 +0100
                Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Dmitry Vyukov <dvyukov@google.com> - 2017-03-24 15:30 +0100
                Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Peter Zijlstra <peterz@infradead.org> - 2017-03-17 21:40 +0100
                Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array Fengguang Wu <fengguang.wu@intel.com> - 2017-03-18 01:50 +0100

csiph-web