From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: "Shreyas B. Prabhu" <shreyas@linux.vnet.ibm.com>,
Paul Mackerras <paulus@samba.org>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
Geert Uytterhoeven <geert@linux-m68k.org>
Subject: Re: [PATCH 1/2] powerpc/powernv: include asm/smp.h to handle UP config
Date: Fri, 06 Jun 2014 21:03:19 +1000 [thread overview]
Message-ID: <1402052599.3247.225.camel@pasglop> (raw)
In-Reply-To: <539152B3.5070702@linux.vnet.ibm.com>
On Fri, 2014-06-06 at 11:03 +0530, Anshuman Khandual wrote:
> On 06/05/2014 08:51 PM, Shreyas B. Prabhu wrote:
> > Build throws following errors when CONFIG_SMP=n
> > arch/powerpc/platforms/powernv/setup.c: In function ‘pnv_kexec_wait_secondaries_down’:
> > arch/powerpc/platforms/powernv/setup.c:179:4: error: implicit declaration of function ‘get_hard_smp_processor_id’
> > rc = opal_query_cpu_status(get_hard_smp_processor_id(i),
> >
> > The usage of get_hard_smp_processor_id() needs the declaration from
> > <asm/smp.h>. The file setup.c includes <linux/sched.h>, which in-turn
> > includes <linux/smp.h>. However, <linux/smp.h> includes <asm/smp.h>
> > only on SMP configs and hence UP builds fail.
> >
> > Fix this by directly including <asm/smp.h> in setup.c unconditionally.
>
> Can you please clean up the description in the commit message ? and also
> the first line in the commit message should mention that the patch is
> trying to fix a UP specific build failure.
I don't understand your comment ... the description and subject line
are perfectly fine...
Ben.
prev parent reply other threads:[~2014-06-06 11:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-05 15:21 [PATCH 1/2] powerpc/powernv: include asm/smp.h to handle UP config Shreyas B. Prabhu
2014-06-05 15:24 ` [PATCH 2/2] powerpc/powernv : Disable subcore for UP configs Shreyas B. Prabhu
2014-06-06 5:52 ` Anshuman Khandual
2014-06-06 5:33 ` [PATCH 1/2] powerpc/powernv: include asm/smp.h to handle UP config Anshuman Khandual
2014-06-06 6:30 ` Geert Uytterhoeven
2014-06-06 11:03 ` Benjamin Herrenschmidt [this message]
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