From: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
To: Nick Hudson <nhudson@akamai.com>, bpf@vger.kernel.org
Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com>,
Nick Hudson <nhudson@akamai.com>,
Max Tottenham <mtottenh@akamai.com>,
Anna Glasgall <aglasgal@akamai.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 3/5] bpf: add helper masks for ADJ_ROOM decap flags
Date: Tue, 17 Mar 2026 09:27:36 -0400 [thread overview]
Message-ID: <willemdebruijn.kernel.3102df56d5f64@gmail.com> (raw)
In-Reply-To: <20260317121429.2399539-4-nhudson@akamai.com>
Nick Hudson wrote:
> Introduce helper masks for bpf_skb_adjust_room() decapsulation flags
> to simplify validation and keep flag handling readable:
>
> - BPF_F_ADJ_ROOM_DECAP_L4_MASK
> - BPF_F_ADJ_ROOM_DECAP_IPXIP_MASK
> - BPF_F_ADJ_ROOM_ENCAP_MASK
> - BPF_F_ADJ_ROOM_DECAP_MASK
>
> Also fold these masks into BPF_F_ADJ_ROOM_MASK and per-path flag
> validation checks.
>
> This is a refactoring/plumbing change; functional decapsulation and
> GSO behavior updates are handled in later patches.
>
> Co-developed-by: Max Tottenham <mtottenh@akamai.com>
> Signed-off-by: Max Tottenham <mtottenh@akamai.com>
> Co-developed-by: Anna Glasgall <aglasgal@akamai.com>
> Signed-off-by: Anna Glasgall <aglasgal@akamai.com>
> Signed-off-by: Nick Hudson <nhudson@akamai.com>
Only patches 3 through 5 were sent to the netdev list.
Please resubmit the entire series (after the customary 24 hr min) to
the full list.
next prev parent reply other threads:[~2026-03-17 13:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-17 12:14 [PATCH v1 0/5] bpf: Add tunnel decapsulation and GSO state updates per new flags Nick Hudson
2026-03-17 12:14 ` [PATCH v1 1/5] bpf: name the enum for BPF_FUNC_skb_adjust_room flags Nick Hudson
2026-03-17 12:14 ` [PATCH v1 2/5] bpf: add BPF_F_ADJ_ROOM_DECAP_* flags for tunnel decapsulation Nick Hudson
2026-03-17 12:14 ` [PATCH v1 3/5] bpf: add helper masks for ADJ_ROOM decap flags Nick Hudson
2026-03-17 13:27 ` Willem de Bruijn [this message]
2026-03-17 13:47 ` Hudson, Nick
2026-03-17 14:01 ` Willem de Bruijn
2026-03-17 12:14 ` [PATCH v1 4/5] bpf: add guard rails for new DECAP flags Nick Hudson
2026-03-17 13:30 ` Willem de Bruijn
2026-03-17 12:14 ` [PATCH v1 5/5] bpf: clear decap tunnel GSO state in skb_adjust_room Nick Hudson
2026-03-17 13:02 ` bot+bpf-ci
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