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Re: [PATCH v3 08/12] arm64, numa: rework numa_add_memblk()

From Robert Richter <robert.richter@caviumnetworks.com>
Newsgroups linux.kernel
Subject Re: [PATCH v3 08/12] arm64, numa: rework numa_add_memblk()
Date 2016-01-25 11:10 +0100
Message-ID <qUMfY-2lm-73@gated-at.bofh.it> (permalink)
References <qU2Zr-K2-5@gated-at.bofh.it> <qU2Zs-K2-25@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 23.01.16 17:39:23, Hanjun Guo wrote:
> Rework numa_add_memblk() to update the parameter "u64 size"
> to "u64 end", this will make it consistent with x86 and
> can simplify the code later.

> --- a/arch/arm64/kernel/of_numa.c
> +++ b/arch/arm64/kernel/of_numa.c
> @@ -168,7 +168,7 @@ static int __init early_init_parse_memory_node(unsigned long node)
>  		pr_debug("NUMA-DT:  base = %llx , node = %u\n",
>  				base, nid);
>  
> -		if (numa_add_memblk(nid, base, size) < 0)
> +		if (numa_add_memblk(nid, base, base + size) < 0)

The overall function usage looks more like as it should use size
instead of end. Even in the x86 implementation end is calculated from
base + size. So better change x86 code to use size instead.

Though this might involve to change the interface for
numa_add_memblk_to() for unifcation too.

-Robert

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Thread

[PATCH v3 00/12] ACPI NUMA support for ARM64 Hanjun Guo <guohanjun@huawei.com> - 2016-01-23 10:50 +0100
  [PATCH v3 08/12] arm64, numa: rework numa_add_memblk() Hanjun Guo <guohanjun@huawei.com> - 2016-01-23 10:50 +0100
    Re: [PATCH v3 08/12] arm64, numa: rework numa_add_memblk() Robert Richter <robert.richter@caviumnetworks.com> - 2016-01-25 11:10 +0100
      Re: [PATCH v3 08/12] arm64, numa: rework numa_add_memblk() Hanjun Guo <guohanjun@huawei.com> - 2016-01-27 07:30 +0100
  [PATCH v3 05/12] arm64, acpi, numa: NUMA support based on SRAT and SLIT Hanjun Guo <guohanjun@huawei.com> - 2016-01-23 10:50 +0100
    Re: [PATCH v3 05/12] arm64, acpi, numa: NUMA support based on SRAT  and SLIT Robert Richter <robert.richter@caviumnetworks.com> - 2016-01-25 11:30 +0100
      Re: [PATCH v3 05/12] arm64, acpi, numa: NUMA support based on SRAT  and SLIT Hanjun Guo <guohanjun@huawei.com> - 2016-01-27 08:20 +0100
        Re: [PATCH v3 05/12] arm64, acpi, numa: NUMA support based on SRAT  and SLIT Robert Richter <robert.richter@caviumnetworks.com> - 2016-01-27 15:40 +0100
  [PATCH v3 12/12] acpi, numa: reuse acpi_numa_memory_affinity_init() Hanjun Guo <guohanjun@huawei.com> - 2016-01-23 10:50 +0100
    Re: [PATCH v3 12/12] acpi, numa: reuse  acpi_numa_memory_affinity_init() Robert Richter <robert.richter@caviumnetworks.com> - 2016-01-25 11:30 +0100
      Re: [PATCH v3 12/12] acpi, numa: reuse  acpi_numa_memory_affinity_init() Hanjun Guo <guohanjun@huawei.com> - 2016-01-27 07:20 +0100
        Re: [PATCH v3 12/12] acpi, numa: reuse  acpi_numa_memory_affinity_init() Robert Richter <robert.richter@caviumnetworks.com> - 2016-01-27 15:20 +0100
  [PATCH v3 10/12] acpi, numa: move bad_srat() and srat_disabled() to common place Hanjun Guo <guohanjun@huawei.com> - 2016-01-23 10:50 +0100
  [PATCH v3 02/12] acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug() Hanjun Guo <guohanjun@huawei.com> - 2016-01-23 10:50 +0100
  [PATCH v3 07/12] acpi, numa: move acpi_numa_slit_init() to common place Hanjun Guo <guohanjun@huawei.com> - 2016-01-23 10:50 +0100

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