netdev - Re: Fw: [Bug 217054] New: wireguard - allowedips.c - warning: the frame size of 1032 bytes is larger than 1024 bytes

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Message-ID: <Y/EhqqFJepo3Ncpr@zx2c4.com>
Date:   Sat, 18 Feb 2023 20:06:18 +0100
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, wireguard@...ts.zx2c4.com,
        netdev@...r.kernel.org
Subject: Re: Fw: [Bug 217054] New: wireguard - allowedips.c - warning: the
 frame size of 1032 bytes is larger than 1024 bytes

On Sat, Feb 18, 2023 at 09:50:36AM -0800, Stephen Hemminger wrote:
> 
> 
> Begin forwarded message:
> 
> Date: Sat, 18 Feb 2023 15:49:26 +0000
> From: bugzilla-daemon@...nel.org
> To: stephen@...workplumber.org
> Subject: [Bug 217054] New: wireguard - allowedips.c - warning: the frame size of 1032 bytes is larger than 1024 bytes
> 
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=217054
> 
>             Bug ID: 217054
>            Summary: wireguard - allowedips.c - warning: the frame size of
>                     1032 bytes is larger than 1024 bytes
>            Product: Networking
>            Version: 2.5
>     Kernel Version: 6.1.12
>           Hardware: AMD
>                 OS: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: Other
>           Assignee: stephen@...workplumber.org
>           Reporter: ionut_n2001@...oo.com
>         Regression: No
> 
> CC [M]  drivers/memstick/core/memstick.o
> drivers/net/wireguard/allowedips.c: In function 'root_remove_peer_lists':
> drivers/net/wireguard/allowedips.c:80:1: warning: the frame size of 1032 bytes
> is larger than 1024 bytes [-Wframe-larger-than=]
>    80 | }
>       | ^
> drivers/net/wireguard/allowedips.c: In function 'root_free_rcu':
> drivers/net/wireguard/allowedips.c:67:1: warning: the frame size of 1032 bytes
> is larger than 1024 bytes [-Wframe-larger-than=]
>    67 | }
>       | ^
>   CC [M]  drivers/net/wireguard/ratelimiter.o
>   CC [M]  drivers/memstick/core/ms_block.o

This keeps coming up. The frame size that the compiler targets on 64-bit
is 1280, not 1024. The reporter misconfigured the .config. Maybe there
should be a min value for that. Dunno. Old topic.

Jason