linux-kernel - Re: [PATCH net-next 7/8] net: mscc: ocelot: strengthen type of "int i" in ocelot

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: <794f4bb2-ea10-1d9b-96a2-e14df75c81df@intel.com>
Date:   Wed, 12 Apr 2023 14:21:33 -0700
From:   Jacob Keller <jacob.e.keller@...el.com>
To:     Vladimir Oltean <vladimir.oltean@....com>, <netdev@...r.kernel.org>
CC:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "Claudiu Manoil" <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        <UNGLinuxDriver@...rochip.com>,
        Colin Foster <colin.foster@...advantage.com>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next 7/8] net: mscc: ocelot: strengthen type of "int
 i" in ocelot_stats.c



On 4/12/2023 5:47 AM, Vladimir Oltean wrote:
> The "int i" used to index the struct ocelot_stat_layout array actually
> has a specific type: enum ocelot_stat. Use it, so that the WARN()
> comment from ocelot_prepare_stats_regions() makes more sense.
> 
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
> ---
>  drivers/net/ethernet/mscc/ocelot_stats.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 

For the lazy readers who didn't dig up the source outside the patch
context, the WARN in question is:

> 
>                         /* enum ocelot_stat must be kept sorted in the same
>                          * order as layout[i].reg in order to have efficient
>                          * bulking
>                          */
>                         WARN_ON(last >= layout[i].reg);

Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>