linux-kernel - Re: [PATCH v6 4/7] ACPI/NUMA: Squash acpi_numa_memory_affinity_init() into acpi_parse_memory

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Date: Tue, 30 Apr 2024 09:01:06 -0700
From: Alison Schofield <alison.schofield@...el.com>
To: Robert Richter <rrichter@....com>
Cc: "Rafael J. Wysocki" <rafael@...nel.org>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Dan Williams <dan.j.williams@...el.com>, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-cxl@...r.kernel.org,
	kernel test robot <oliver.sang@...el.com>,
	Len Brown <lenb@...nel.org>
Subject: Re: [PATCH v6 4/7] ACPI/NUMA: Squash
 acpi_numa_memory_affinity_init() into acpi_parse_memory_affinity()

On Tue, Apr 30, 2024 at 11:21:57AM +0200, Robert Richter wrote:
> After removing architectural code the helper function
> acpi_numa_memory_affinity_init() is no longer needed. Squash it into
> acpi_parse_memory_affinity(). No functional changes intended.
> 
> While at it, fixing checkpatch complaints in code moved.
>

Reviewed-by: Alison Schofield <alison.schofield@...el.com>

> Reported-by: kernel test robot <oliver.sang@...el.com>
> Closes: https://lore.kernel.org/oe-lkp/202403220943.96dde419-oliver.sang@intel.com
> Reviewed-by: Dan Williams <dan.j.williams@...el.com>
> Signed-off-by: Robert Richter <rrichter@....com>
> ---
>  drivers/acpi/numa/srat.c | 40 +++++++++++++++++-----------------------
>  1 file changed, 17 insertions(+), 23 deletions(-)
> 
> diff --git a/drivers/acpi/numa/srat.c b/drivers/acpi/numa/srat.c
> index 430ddcfb8312..e3f26e71637a 100644
> --- a/drivers/acpi/numa/srat.c
> +++ b/drivers/acpi/numa/srat.c
> @@ -248,22 +248,30 @@ static int __init acpi_parse_slit(struct acpi_table_header *table)
>  	return 0;
>  }
>  
> +static int parsed_numa_memblks __initdata;
> +
>  static int __init
> -acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
> +acpi_parse_memory_affinity(union acpi_subtable_headers *header,
> +			   const unsigned long table_end)
>  {
> +	struct acpi_srat_mem_affinity *ma;
>  	u64 start, end;
>  	u32 hotpluggable;
>  	int node, pxm;
>  
> +	ma = (struct acpi_srat_mem_affinity *)header;
> +
> +	acpi_table_print_srat_entry(&header->common);
> +
>  	if (srat_disabled())
> -		goto out_err;
> +		return 0;
>  	if (ma->header.length < sizeof(struct acpi_srat_mem_affinity)) {
>  		pr_err("SRAT: Unexpected header length: %d\n",
>  		       ma->header.length);
>  		goto out_err_bad_srat;
>  	}
>  	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
> -		goto out_err;
> +		return 0;
>  	hotpluggable = IS_ENABLED(CONFIG_MEMORY_HOTPLUG) &&
>  		(ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE);
>  
> @@ -301,11 +309,15 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
>  
>  	max_possible_pfn = max(max_possible_pfn, PFN_UP(end - 1));
>  
> +	parsed_numa_memblks++;
> +
>  	return 0;
> +
>  out_err_bad_srat:
> +	/* Just disable SRAT, but do not fail and ignore errors. */
>  	bad_srat();
> -out_err:
> -	return -EINVAL;
> +
> +	return 0;
>  }
>  
>  static int __init acpi_parse_cfmws(union acpi_subtable_headers *header,
> @@ -438,24 +450,6 @@ acpi_parse_gi_affinity(union acpi_subtable_headers *header,
>  }
>  #endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */
>  
> -static int __initdata parsed_numa_memblks;
> -
> -static int __init
> -acpi_parse_memory_affinity(union acpi_subtable_headers * header,
> -			   const unsigned long end)
> -{
> -	struct acpi_srat_mem_affinity *memory_affinity;
> -
> -	memory_affinity = (struct acpi_srat_mem_affinity *)header;
> -
> -	acpi_table_print_srat_entry(&header->common);
> -
> -	/* let architecture-dependent part to do it */
> -	if (!acpi_numa_memory_affinity_init(memory_affinity))
> -		parsed_numa_memblks++;
> -	return 0;
> -}
> -
>  static int __init acpi_parse_srat(struct acpi_table_header *table)
>  {
>  	struct acpi_table_srat *srat = (struct acpi_table_srat *)table;
> -- 
> 2.39.2
>