netdev - Re: [net 03/10] net/mlx5e: XDP, Allow growing tail for XDP multi buffer

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Message-ID: <20230223163414.6d860ecd@kernel.org>
Date:   Thu, 23 Feb 2023 16:34:14 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Saeed Mahameed <saeed@...nel.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...dia.com>,
        Maxim Mikityanskiy <maxtram95@...il.com>
Subject: Re: [net 03/10] net/mlx5e: XDP, Allow growing tail for XDP multi
 buffer

On Thu, 23 Feb 2023 14:52:40 -0800 Saeed Mahameed wrote:
> From: Maxim Mikityanskiy <maxtram95@...il.com>
> 
> The cited commits missed passing frag_size to __xdp_rxq_info_reg, which
> is required by bpf_xdp_adjust_tail to support growing the tail pointer
> in fragmented packets. Pass the missing parameter when the current RQ
> mode allows XDP multi buffer.

Why is this a fix and not an (omitted) feature?