netdev - Re: [PATCH] net: airoha_eth: increase max mtu to 9220 for DSA jumbo frames

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: <aWjuM3Ov0e45QyW4@lore-desk>
Date: Thu, 15 Jan 2026 14:40:03 +0100
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: Sayantan Nandy <sayantann11@...il.com>
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org,
	sayantan.nandy@...oha.com, bread.hsu@...oha.com,
	kuldeep.malik@...oha.com, aniket.negi@...oha.com,
	rajeev.kumar@...oha.com
Subject: Re: [PATCH] net: airoha_eth: increase max mtu to 9220 for DSA jumbo
 frames

> The Industry standard for jumbo frame MTU is 9216 bytes. When using DSA
> sub-system, an extra 4 byte tag is added to each frame. To allow users
> to set the standard 9216-byte MTU via ifconfig,increase AIROHA_MAX_MTU
> to 9220 bytes (9216+4).
> 
> Signed-off-by: Sayantan Nandy <sayantann11@...il.com>

I think the patch is fine, but here you are missing to specify this is v2
and this patch targets net-next. Moreover, please wait 24h before reposting
a new version of the same patch.

Regards,
Lorenzo

> ---
>  drivers/net/ethernet/airoha/airoha_eth.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/airoha/airoha_eth.h b/drivers/net/ethernet/airoha/airoha_eth.h
> index fbbc58133364..20e602d61e61 100644
> --- a/drivers/net/ethernet/airoha/airoha_eth.h
> +++ b/drivers/net/ethernet/airoha/airoha_eth.h
> @@ -21,7 +21,7 @@
>  #define AIROHA_MAX_NUM_IRQ_BANKS	4
>  #define AIROHA_MAX_DSA_PORTS		7
>  #define AIROHA_MAX_NUM_RSTS		3
> -#define AIROHA_MAX_MTU			9216
> +#define AIROHA_MAX_MTU			9220
>  #define AIROHA_MAX_PACKET_SIZE		2048
>  #define AIROHA_NUM_QOS_CHANNELS		4
>  #define AIROHA_NUM_QOS_QUEUES		8
> -- 
> 2.43.0
> 

Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)