linux-kernel - Re: [PATCH] ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO

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Message-ID: <Zqc2fQr4KJrJW9IB@sunil-laptop>
Date: Mon, 29 Jul 2024 11:58:13 +0530
From: Sunil V L <sunilvl@...tanamicro.com>
To: Haibo Xu <haibo1.xu@...el.com>
Cc: xiaobo55x@...il.com, ajones@...tanamicro.com,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Gavin Shan <gshan@...hat.com>,
	"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
	James Morse <james.morse@....com>,
	Hanjun Guo <guohanjun@...wei.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org
Subject: Re: [PATCH] ACPI: NUMA: initialize all values of acpi_early_node_map
 to NUMA_NO_NODE

On Mon, Jul 29, 2024 at 11:59:55AM +0800, Haibo Xu wrote:
> Currently, only acpi_early_node_map[0] was initialized to NUMA_NO_NODE.
> To ensure all the values were properly initialized, switch to initialize
> all of them to NUMA_NO_NODE.
> 
> Suggested-by: Andrew Jones <ajones@...tanamicro.com>
> Signed-off-by: Haibo Xu <haibo1.xu@...el.com>
> ---
>  arch/arm64/kernel/acpi_numa.c | 2 +-
>  arch/riscv/kernel/acpi_numa.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c
> index 0c036a9a3c33..2465f291c7e1 100644
> --- a/arch/arm64/kernel/acpi_numa.c
> +++ b/arch/arm64/kernel/acpi_numa.c
> @@ -27,7 +27,7 @@
>  
>  #include <asm/numa.h>
>  
> -static int acpi_early_node_map[NR_CPUS] __initdata = { NUMA_NO_NODE };
> +static int acpi_early_node_map[NR_CPUS] __initdata = { [0 ... NR_CPUS - 1] = NUMA_NO_NODE };
>  
>  int __init acpi_numa_get_nid(unsigned int cpu)
>  {
> diff --git a/arch/riscv/kernel/acpi_numa.c b/arch/riscv/kernel/acpi_numa.c
> index 0231482d6946..ff95aeebee3e 100644
> --- a/arch/riscv/kernel/acpi_numa.c
> +++ b/arch/riscv/kernel/acpi_numa.c
> @@ -28,7 +28,7 @@
>  
>  #include <asm/numa.h>
>  
> -static int acpi_early_node_map[NR_CPUS] __initdata = { NUMA_NO_NODE };
> +static int acpi_early_node_map[NR_CPUS] __initdata = { [0 ... NR_CPUS - 1] = NUMA_NO_NODE };
>  
The change looks good to me. However, I was wondering whether it needs
"Fixes" tag in which case I think you will have to split this patch into
two.

Otherwise,
Reviewed-by: Sunil V L <sunilvl@...tanamicro.com>

Thanks!
Sunil
>  int __init acpi_numa_get_nid(unsigned int cpu)
>  {
> -- 
> 2.34.1
>