linux-kernel - Re: [PATCH net v2] net: dsa: mv88e6xxx: fix handling of upper half of STATS_TYPE

lists.openwall.net		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 linux-cve-announce 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]

Message-ID: <20190529131624.GD13966@t480s.localdomain>
Date:   Wed, 29 May 2019 13:16:24 -0400
From:   Vivien Didelot <vivien.didelot@...il.com>
To:     Rasmus Villemoes <rasmus.villemoes@...vas.dk>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Rasmus Villemoes <Rasmus.Villemoes@...vas.se>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net v2] net: dsa: mv88e6xxx: fix handling of upper half of
 STATS_TYPE_PORT

Hi Rasmus,

On Wed, 29 May 2019 07:02:11 +0000, Rasmus Villemoes <rasmus.villemoes@...vas.dk> wrote:
> Currently, the upper half of a 4-byte STATS_TYPE_PORT statistic ends
> up in bits 47:32 of the return value, instead of bits 31:16 as they
> should.
> 
> Fixes: 6e46e2d821bb ("net: dsa: mv88e6xxx: Fix u64 statistics")
> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@...vas.dk>

Correct, this 4-byte stat must be stored in the lower half of the
8-byte returned value:

Reviewed-by: Vivien Didelot <vivien.didelot@...il.com>