linux-kernel - Re: [PATCH 1/2] doc: Fix typo in Documentation/riscv/vm-layout

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Date:   Mon, 13 Sep 2021 17:57:37 +0200
From:   Alexandre ghiti <alex@...ti.fr>
To:     Leo Yu-Chi Liang <ycliang@...estech.com>, corbet@....net,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-doc-tw-discuss@...ts.sourceforge.net,
        linux-riscv@...ts.infradead.org
Cc:     ycliang@...nctu.edu.tw
Subject: Re: [PATCH 1/2] doc: Fix typo in Documentation/riscv/vm-layout

(+cc linux-riscv)

On 9/12/21 5:51 PM, Leo Yu-Chi Liang wrote:
> From: Leo Yu-Chi Liang <ycliang@...nctu.edu.tw>
>
> Fix a typo of the End Addr field for `direct mapping` section.
>
> The value 0xffffffff7fffffff - 0xffffffe000000000 is 126 GB
> and is not equal to value in the size field.
>
> Update the value to make sense of the memory layout table.
>
> Signed-off-by: Leo Yu-Chi Liang <ycliang@...nctu.edu.tw>
> ---
>  Documentation/riscv/vm-layout.rst | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Documentation/riscv/vm-layout.rst b/Documentation/riscv/vm-layout.rst
> index b7f98930d38d..2525cf0d6794 100644
> --- a/Documentation/riscv/vm-layout.rst
> +++ b/Documentation/riscv/vm-layout.rst
> @@ -52,7 +52,7 @@ RISC-V Linux Kernel SV39
>     ffffffceff000000 | -196    GB | ffffffceffffffff |   16 MB | PCI io
>     ffffffcf00000000 | -196    GB | ffffffcfffffffff |    4 GB | vmemmap
>     ffffffd000000000 | -192    GB | ffffffdfffffffff |   64 GB | vmalloc/ioremap space
> -   ffffffe000000000 | -128    GB | ffffffff7fffffff |  124 GB | direct mapping of all physical memory
> +   ffffffe000000000 | -128    GB | fffffffeffffffff |  124 GB | direct mapping of all physical memory
>    __________________|____________|__________________|_________|____________________________________________________________
>                                                                |
>                                                                |

You're right, thanks for catching this, you can add:

Reviewed-by: Alexandre Ghiti <alex@...ti.fr>

Thanks again,

Alex