linux-kernel - Re: [PATCH] uml: vector: fix definitios of VECTOR_WRITE and VECTOR

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Message-ID: <874b2d0c-3500-5c1e-07cd-74f9e91d92d6@cambridgegreys.com>
Date:   Thu, 9 Feb 2023 17:33:22 +0000
From:   Anton Ivanov <anton.ivanov@...bridgegreys.com>
To:     Carlos Bilbao <carlos.bilbao@....com>, richard@....at,
        johannes@...solutions.net
Cc:     linux-um@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] uml: vector: fix definitios of VECTOR_WRITE and
 VECTOR_HEADERS

On 09/02/2023 16:19, Carlos Bilbao wrote:
> Fix definitions of VECTOR_WRITE and VECTOR_HEADERS with proper bitwise
> operand for bit shift.
> 
> Signed-off-by: Carlos Bilbao <carlos.bilbao@....com>
> ---
>   arch/um/drivers/vector_user.h | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/um/drivers/vector_user.h b/arch/um/drivers/vector_user.h
> index 3a73d17a0161..f7d3956f5c15 100644
> --- a/arch/um/drivers/vector_user.h
> +++ b/arch/um/drivers/vector_user.h
> @@ -68,8 +68,8 @@ struct vector_fds {
>   };
>   
>   #define VECTOR_READ	1
> -#define VECTOR_WRITE	(1 < 1)
> -#define VECTOR_HEADERS	(1 < 2)
> +#define VECTOR_WRITE	(1 << 1)
> +#define VECTOR_HEADERS	(1 << 2)
>   
>   extern struct arglist *uml_parse_vector_ifspec(char *arg);
>   

These are no longer used. They were used in some very early versions of 
the code.

They should just be removed instead of redefined correctly.

-- 
Anton R. Ivanov
Cambridgegreys Limited. Registered in England. Company Number 10273661
https://www.cambridgegreys.com/