linux-kernel - Re: [PATCH v3 06/26] MIPS: loongson64: drop HAVE_ARCH_NODEDATA

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Message-ID: <20240801184738.00003e6e@Huawei.com>
Date: Thu, 1 Aug 2024 18:47:38 +0100
From: Jonathan Cameron <Jonathan.Cameron@...wei.com>
To: Mike Rapoport <rppt@...nel.org>
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Subject: Re: [PATCH v3 06/26] MIPS: loongson64: drop
 HAVE_ARCH_NODEDATA_EXTENSION

On Thu,  1 Aug 2024 09:08:06 +0300
Mike Rapoport <rppt@...nel.org> wrote:

> From: "Mike Rapoport (Microsoft)" <rppt@...nel.org>
> 
> Commit f8f9f21c7848 ("MIPS: Fix build error for loongson64 and
> sgi-ip27") added HAVE_ARCH_NODEDATA_EXTENSION to loongson64 to silence a
> compilation error that happened because loongson64 didn't define array
> of pg_data_t as node_data like most other architectures did.
> 
> After rename of __node_data to node_data arch_alloc_nodedata() and
> HAVE_ARCH_NODEDATA_EXTENSION can be dropped from loongson64.
> 
> Since it was the only user of HAVE_ARCH_NODEDATA_EXTENSION config option
> also remove this option from arch/mips/Kconfig.
> 
> Signed-off-by: Mike Rapoport (Microsoft) <rppt@...nel.org>

These are as you say now identical to the generic form, so
don't need a special version for any reason I can see.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>


> ---
>  arch/mips/Kconfig           |  4 ----
>  arch/mips/loongson64/numa.c | 10 ----------
>  2 files changed, 14 deletions(-)
> 
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index ea5f3c3c31f6..43da6d596e2b 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -502,7 +502,6 @@ config MACH_LOONGSON64
>  	select USE_OF
>  	select BUILTIN_DTB
>  	select PCI_HOST_GENERIC
> -	select HAVE_ARCH_NODEDATA_EXTENSION if NUMA
>  	help
>  	  This enables the support of Loongson-2/3 family of machines.
>  
> @@ -2612,9 +2611,6 @@ config NUMA
>  config SYS_SUPPORTS_NUMA
>  	bool
>  
> -config HAVE_ARCH_NODEDATA_EXTENSION
> -	bool
> -
>  config RELOCATABLE
>  	bool "Relocatable kernel"
>  	depends on SYS_SUPPORTS_RELOCATABLE
> diff --git a/arch/mips/loongson64/numa.c b/arch/mips/loongson64/numa.c
> index b50ce28d2741..64fcfaa885b6 100644
> --- a/arch/mips/loongson64/numa.c
> +++ b/arch/mips/loongson64/numa.c
> @@ -198,13 +198,3 @@ void __init prom_init_numa_memory(void)
>  	pr_info("CP0_PageGrain: CP0 5.1 (0x%x)\n", read_c0_pagegrain());
>  	prom_meminit();
>  }
> -
> -pg_data_t * __init arch_alloc_nodedata(int nid)
> -{
> -	return memblock_alloc(sizeof(pg_data_t), SMP_CACHE_BYTES);
> -}
> -
> -void arch_refresh_nodedata(int nid, pg_data_t *pgdat)
> -{
> -	node_data[nid] = pgdat;
> -}