From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Greg KH <greg@kroah.com>
Cc: linuxppc-dev@lists.ozlabs.org, paulus@samba.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
stable@vger.kernel.org, Li Zhong <zhong@linux.vnet.ibm.com>
Subject: Re: [PATCH 2/2] Fix compile error of pgtable-ppc64.h
Date: Thu, 30 Jan 2014 09:57:36 +1100 [thread overview]
Message-ID: <1391036256.8524.81.camel@pasglop> (raw)
In-Reply-To: <20140129184544.GA23204@kroah.com>
On Wed, 2014-01-29 at 10:45 -0800, Greg KH wrote:
> On Tue, Jan 28, 2014 at 05:52:42PM +0530, Aneesh Kumar K.V wrote:
> > From: Li Zhong <zhong@linux.vnet.ibm.com>
> >
> > It seems that forward declaration couldn't work well with typedef, use
> > struct spinlock directly to avoiding following build errors:
> >
> > In file included from include/linux/spinlock.h:81,
> > from include/linux/seqlock.h:35,
> > from include/linux/time.h:5,
> > from include/uapi/linux/timex.h:56,
> > from include/linux/timex.h:56,
> > from include/linux/sched.h:17,
> > from arch/powerpc/kernel/asm-offsets.c:17:
> > include/linux/spinlock_types.h:76: error: redefinition of typedef 'spinlock_t'
> > /root/linux-next/arch/powerpc/include/asm/pgtable-ppc64.h:563: note: previous declaration of 'spinlock_t' was here
> >
> > build fix for upstream SHA1: b3084f4db3aeb991c507ca774337c7e7893ed04f
> > for 3.13 stable series
>
> I don't understand, why is this needed? Is there a corrisponding patch
> upstream that already does this? What went wrong with a "normal"
> backport of the patch to 3.13?
There's a corresponding patch in powerpc-next that I'm about to send to
Linus today, but for the backport, the "fix" could be folded into the
original offending patch.
Cheers,
Ben.
next prev parent reply other threads:[~2014-01-29 22:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-28 12:22 [PATCH 1/2] powerpc/thp: Fix crash on mremap Aneesh Kumar K.V
2014-01-28 12:22 ` [PATCH 2/2] Fix compile error of pgtable-ppc64.h Aneesh Kumar K.V
2014-01-29 18:45 ` Greg KH
2014-01-29 22:57 ` Benjamin Herrenschmidt [this message]
2014-01-30 12:34 ` Greg KH
2014-01-30 17:38 ` Aneesh Kumar K.V
2014-01-30 17:55 ` Greg KH
2014-01-30 18:03 ` Aneesh Kumar K.V
2014-01-30 20:59 ` Benjamin Herrenschmidt
2014-01-30 22:37 ` Greg KH
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