netdev - RE: [PATCH v2] socket: Use __u8 instead of u8 in uapi socket.h

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Date:   Mon, 30 May 2022 08:20:29 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Tobias Klauser' <tklauser@...tanz.ch>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>
CC:     Akhmat Karakotov <hmukos@...dex-team.ru>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [PATCH v2] socket: Use __u8 instead of u8 in uapi socket.h

From: Tobias Klauser
> Sent: 30 May 2022 09:15
> 
> Use the uapi variant of the u8 type.
> 
> Fixes: 26859240e4ee ("txhash: Add socket option to control TX hash rethink behavior")
> Signed-off-by: Tobias Klauser <tklauser@...tanz.ch>
> ---
> v2: add missing <linux/types.h> include as reported by kernel test robot
> 
>  include/uapi/linux/socket.h | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/include/uapi/linux/socket.h b/include/uapi/linux/socket.h
> index 51d6bb2f6765..62a32040ad4f 100644
> --- a/include/uapi/linux/socket.h
> +++ b/include/uapi/linux/socket.h
> @@ -2,6 +2,8 @@
>  #ifndef _UAPI_LINUX_SOCKET_H
>  #define _UAPI_LINUX_SOCKET_H
> 
> +#include <linux/types.h>
> +
>  /*
>   * Desired design of maximum size and alignment (see RFC2553)
>   */
> @@ -31,7 +33,7 @@ struct __kernel_sockaddr_storage {
> 
>  #define SOCK_BUF_LOCK_MASK (SOCK_SNDBUF_LOCK | SOCK_RCVBUF_LOCK)
> 
> -#define SOCK_TXREHASH_DEFAULT	((u8)-1)
> +#define SOCK_TXREHASH_DEFAULT	((__u8)-1)

I can't help feeling that 255u (or 0xffu) would be a better
way to describe that value.

	David

>  #define SOCK_TXREHASH_DISABLED	0
>  #define SOCK_TXREHASH_ENABLED	1
> 
> --
> 2.36.1

-
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