linux-kernel - Re: [PATCH 1/2] topology, cleanup: Avoid redefinition of cpumask_of

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Date:	Wed, 2 Mar 2016 02:17:10 +0000
From:	Will Deacon <will.deacon@....com>
To:	David Daney <ddaney.cavm@...il.com>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Mark Rutland <mark.rutland@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Tony Luck <tony.luck@...el.com>,
	Fenghua Yu <fenghua.yu@...el.com>,
	James Hogan <james.hogan@...tec.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Yoshinori Sato <ysato@...rs.sourceforge.jp>,
	Rich Felker <dalias@...c.org>,
	"David S. Miller" <davem@...emloft.net>,
	Chris Metcalf <cmetcalf@...hip.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Arnd Bergmann <arnd@...db.de>, linux-ia64@...r.kernel.org,
	linux-metag@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
	sparclinux@...r.kernel.org, linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Ganapatrao Kulkarni <gkulkarni@...iumnetworks.com>,
	David Daney <david.daney@...ium.com>
Subject: Re: [PATCH 1/2] topology, cleanup: Avoid redefinition of
 cpumask_of_pcibus in asm header files.

On Wed, Feb 24, 2016 at 04:02:07PM -0800, David Daney wrote:
> From: Ganapatrao Kulkarni <gkulkarni@...iumnetworks.com>
> 
> At present cpumask_of_pcibus is defined for !CONFIG_NUMA and moving out
> to common will allow to use for numa too. This also avoids
> redefinition of this macro in respective architecture header files.
> 
> Reviewed-by: Robert Richter <rrichter@...ium.com>
> Signed-off-by: Ganapatrao Kulkarni <gkulkarni@...iumnetworks.com>
> Signed-off-by: David Daney <david.daney@...ium.com>
> ---
>  arch/arm64/include/asm/topology.h   | 3 ---
>  arch/ia64/include/asm/topology.h    | 4 ----
>  arch/metag/include/asm/topology.h   | 3 ---
>  arch/powerpc/include/asm/topology.h | 4 ----
>  arch/s390/include/asm/pci.h         | 2 +-
>  arch/s390/include/asm/topology.h    | 1 +
>  arch/sh/include/asm/topology.h      | 3 ---
>  arch/tile/include/asm/pci.h         | 2 --
>  arch/tile/include/asm/topology.h    | 3 +++
>  arch/x86/include/asm/pci.h          | 2 +-
>  arch/x86/include/asm/topology.h     | 1 +
>  include/asm-generic/topology.h      | 4 ++--
>  12 files changed, 9 insertions(+), 23 deletions(-)
> 
> diff --git a/arch/arm64/include/asm/topology.h b/arch/arm64/include/asm/topology.h
> index 8b57339..6e1f62c 100644
> --- a/arch/arm64/include/asm/topology.h
> +++ b/arch/arm64/include/asm/topology.h
> @@ -26,9 +26,6 @@ const struct cpumask *cpu_coregroup_mask(int cpu);
>  
>  struct pci_bus;
>  int pcibus_to_node(struct pci_bus *bus);
> -#define cpumask_of_pcibus(bus)	(pcibus_to_node(bus) == -1 ?		\
> -				 cpu_all_mask :				\
> -				 cpumask_of_node(pcibus_to_node(bus)))
>  
>  #endif /* CONFIG_NUMA */

Looks like a sensible clean up to me (on top of the arm64 NUMA patches):

Acked-by: Will Deacon <will.deacon@....com>

Will