linux-kernel - Re: [PATCH] riscv: Fix definition of _PAGE_NOCACHE

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Date: Tue, 27 Feb 2024 13:44:50 +0100
From: Alexandre Ghiti <alex@...ti.fr>
To: Fei Wu <fei2.wu@...el.com>, paul.walmsley@...ive.com, palmer@...belt.com,
 aou@...s.berkeley.edu, guoren@...nel.org, jszhang@...nel.org,
 linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] riscv: Fix definition of _PAGE_NOCACHE_THEAD

Hi Fei,

On 27/02/2024 13:44, Fei Wu wrote:
> _PAGE_NOCACHE_THEAD is not used but the definition is wrong.
>
> Signed-off-by: Fei Wu <fei2.wu@...el.com>
> ---
>   arch/riscv/include/asm/pgtable-64.h | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/riscv/include/asm/pgtable-64.h b/arch/riscv/include/asm/pgtable-64.h
> index b42017d76924..b99bd66107a6 100644
> --- a/arch/riscv/include/asm/pgtable-64.h
> +++ b/arch/riscv/include/asm/pgtable-64.h
> @@ -136,7 +136,7 @@ enum napot_cont_order {
>    * 10010 - IO   Strongly-ordered, Non-cacheable, Non-bufferable, Shareable, Non-trustable
>    */
>   #define _PAGE_PMA_THEAD		((1UL << 62) | (1UL << 61) | (1UL << 60))
> -#define _PAGE_NOCACHE_THEAD	((1UL < 61) | (1UL << 60))
> +#define _PAGE_NOCACHE_THEAD	((1UL << 61) | (1UL << 60))
>   #define _PAGE_IO_THEAD		((1UL << 63) | (1UL << 60))
>   #define _PAGE_MTMASK_THEAD	(_PAGE_PMA_THEAD | _PAGE_IO_THEAD | (1UL << 59))
>   


This fix is already in -fixes: 
https://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git/commit/?id=c21f014818600ae017f97ee087e7c136b1916aa7

Thanks,

Alex