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Subject: Re: Linux 4.18-rc6
To:     Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Linus Torvalds <torvalds@linux-foundation.org>
Cc:     Guenter Roeck <linux@roeck-us.net>,
        David Miller <davem@davemloft.net>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Date:   Tue, 24 Jul 2018 09:15:58 +0200
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On 07/24/2018 08:18 AM, Martin Schwidefsky wrote:
> On Mon, 23 Jul 2018 16:17:22 -0700
> Linus Torvalds <torvalds@linux-foundation.org> wrote:
> 
>> On Mon, Jul 23, 2018 at 2:23 PM Guenter Roeck <linux@roeck-us.net> wrote:
>>>  
>>>>
>>>> Martin - can we just remove the
>>>>
>>>>          select HAVE_GCC_PLUGINS
>>>>
>>>> from the s390 Kconfig file (or perhaps add "if BROKEN" or something to
>>>> disable it).
>>>>
>>>> Because if it's not getting fixed, it shouldn't be exposed.
>>>>  
>>> The problem only affects 4.18 - the code has been rearranged in -next.
>>> Only, in my builders, I can't disable a flag for individual releases,
>>> so I just disabled it completely for s390.  
>>
>> Well, I'm not going to release a 4.18 with a known problem, so in 4.18
>> this *will* be disabled if it's not fixed.
>>
>> The fact that it might be fixed in linux-next is entirely immaterial
>> to the release of 4.18.
> 
> Ok, if gcc with the plugins and an allmodconfig is considered to be
> important enough to warrant a fix, it can be pulled from here:
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git for-linus
> 
> Martin Schwidefsky (1):
>       s390: disable gcc plugins
> 
> Once that is in I will create another patch to undo this one and place
> it after the early boot rework.

On the list a different fix was proposed about 2 weeks ago,

something like

CFLAGS_als.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)

and I prefer that. Because your patch disables all gcc plugins.