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From: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
	ppc-dev <linuxppc-dev@lists.ozlabs.org>
Subject: Re: linux-next: build failure after merge of the origin tree
Date: Wed, 10 Oct 2012 08:52:21 +0900	[thread overview]
Message-ID: <5074B8B5.3010307@jp.fujitsu.com> (raw)
In-Reply-To: <20121009164514.b7a7e227.akpm@linux-foundation.org>

Hi Stephen,

2012/10/10 8:45, Andrew Morton wrote:
> On Wed, 10 Oct 2012 10:21:50 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
>> Hi Linus,
>>
>> In Linus' tree, today's linux-next build (powerpc ppc64_defconfig) failed
>> like this:
>>
>> arch/powerpc/platforms/pseries/hotplug-memory.c: In function 'pseries_remove_memblock':
>> arch/powerpc/platforms/pseries/hotplug-memory.c:103:17: error: unused variable 'pfn' [-Werror=unused-variable]
>>
>> Caused by commit d760afd4d257 ("memory-hotplug: suppress "Trying to free
>> nonexistent resource <XXXXXXXXXXXXXXXX-YYYYYYYYYYYYYYYY>" warning").
>>
>> I can't see what the point of the "pfn" variable is
>
> This:
>
> --- a/arch/powerpc/platforms/pseries/hotplug-memory.c~a
> +++ a/arch/powerpc/platforms/pseries/hotplug-memory.c
> @@ -101,7 +101,7 @@ static int pseries_remove_memblock(unsig
>   	sections_to_remove = (memblock_size >> PAGE_SHIFT) / PAGES_PER_SECTION;
>   	for (i = 0; i < sections_to_remove; i++) {
>   		unsigned long pfn = start_pfn + i * PAGES_PER_SECTION;
> -		ret = __remove_pages(zone, start_pfn,  PAGES_PER_SECTION);
> +		ret = __remove_pages(zone, pfn, PAGES_PER_SECTION);
>   		if (ret)
>   			return ret;
>   	}

I believe the error to be fixed with this patch.
Could you try it?

Thanks,
Yasuaki Ishimatsu

>
>> and this patch never
>> appeared in linux-next before being merged.  :-(
>
> It was first sighted October 3.
>
>> I have reverted that commit for today.
>>
>> If this patch truly was authored yesterday (according the Author Date in
>> git), why was it merged yesterday while still under discussion?  And the
>> latest update to it still has this build problem ... did anyone even try
>> to build this for powerpc (since that architecture was obviously
>> affected)?
>
> Apparently not - the ppc bit was a best-effort fixup for a patch which
> addresses an x86 problem.
>

  reply	other threads:[~2012-10-09 23:53 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-09 23:21 linux-next: build failure after merge of the origin tree Stephen Rothwell
2012-10-09 23:45 ` Andrew Morton
2012-10-09 23:52   ` Yasuaki Ishimatsu [this message]
2012-10-10  3:12     ` Stephen Rothwell
2012-10-10  0:07   ` Stephen Rothwell
  -- strict thread matches above, loose matches on Subject: below --
2023-06-30  2:59 Stephen Rothwell
2023-06-30  3:43 ` Linus Torvalds
2021-09-19 23:42 Stephen Rothwell
2021-09-14  0:08 Stephen Rothwell
2021-09-14  0:19 ` Linus Torvalds
2021-09-14  0:24   ` Linus Torvalds
2021-09-14  0:58     ` Stephen Rothwell
2021-09-14  1:29       ` Linus Torvalds
2021-09-14  1:37         ` Linus Torvalds
2021-09-14  2:03           ` Linus Torvalds
2021-09-14  2:08         ` Stephen Rothwell
2021-09-14  2:12           ` Linus Torvalds
2021-09-14  2:50             ` Michael Ellerman
2021-09-14 12:21             ` Michael Ellerman
2021-09-14  2:39           ` Stephen Rothwell
2021-09-07 23:07 Stephen Rothwell
2021-09-07 23:09 ` Stephen Rothwell
2021-09-07 23:17   ` Marco Elver
2021-09-07 23:38     ` Miguel Ojeda
2020-07-30 22:58 Stephen Rothwell
2020-07-30 23:15 ` Stephen Rothwell
2020-07-29 23:08 Stephen Rothwell
2020-07-29 23:43 ` Linus Torvalds
2020-07-30  0:09   ` Linus Torvalds
2020-07-30  2:12     ` Linus Torvalds
2020-07-30  2:30       ` Willy Tarreau
2020-07-30  3:17   ` Kees Cook
2020-07-30  3:22     ` Willy Tarreau
2020-07-30  6:14       ` Willy Tarreau
2020-07-30  9:59         ` Marc Zyngier
2020-07-30 10:09           ` Catalin Marinas
2020-07-30 15:00             ` Will Deacon
2020-07-30 17:49         ` Kees Cook
2020-07-30 18:24     ` Linus Torvalds
2020-07-30 18:47       ` Kees Cook
2020-06-04 22:37 Stephen Rothwell
2020-06-05  0:04 ` Josh Poimboeuf
2020-06-05  9:48   ` Jessica Yu
2020-04-20 10:23 Stephen Rothwell
2020-01-31  4:12 Stephen Rothwell
2020-01-31  4:17 ` Randy Dunlap
2020-01-31  9:39   ` Daniel Lezcano
2012-06-04  2:57 Stephen Rothwell
2012-06-04  7:39 ` Paul Mundt
2012-01-18 23:31 Stephen Rothwell
2012-01-19  8:21 ` Jens Axboe
2012-01-19  8:23   ` Jens Axboe
2011-11-06 23:12 Stephen Rothwell
2011-11-07  1:52 ` David Miller
2011-11-07  2:47   ` Stephen Rothwell
2011-11-07  3:36     ` David Miller
2011-11-07  5:29       ` Kirsher, Jeffrey T
2011-11-07 16:46         ` Rose, Gregory V
2011-11-07 17:46           ` Rose, Gregory V
2011-07-25  1:16 Stephen Rothwell

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