lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Wed, 15 Sep 2021 15:19:01 +0800
From:   DENG Qingfang <>
To:     Linus Walleij <>
Cc:     Andrew Lunn <>,
        Vivien Didelot <>,
        Florian Fainelli <>,
        Vladimir Oltean <>,
        "David S . Miller" <>,
        Jakub Kicinski <>,
Subject: Re: [PATCH net-next] net: dsa: tag_rtl4_a: Drop bit 9 from egress frames

On Mon, Sep 13, 2021 at 04:31:56PM +0200, Linus Walleij wrote:
> This drops the code setting bit 9 on egress frames on the
> Realtek "type A" (RTL8366RB) frames.

FYI, on RTL8366S, bit 9 on egress frames is disable learning.

> This bit was set on ingress frames for unknown reason,

I think it could be the reason why the frame is forwarded to the CPU.

> and was set on egress frames as the format of ingress
> and egress frames was believed to be the same. As that
> assumption turned out to be false, and since this bit
> seems to have zero effect on the behaviour of the switch
> let's drop this bit entirely.
> Signed-off-by: Linus Walleij <>

Powered by blists - more mailing lists