From nobody Fri Dec 19 00:24:35 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4A35C4167B for ; Fri, 1 Dec 2023 20:24:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1379535AbjLAUXx (ORCPT ); Fri, 1 Dec 2023 15:23:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379478AbjLAUXt (ORCPT ); Fri, 1 Dec 2023 15:23:49 -0500 Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 73606F7; Fri, 1 Dec 2023 12:23:56 -0800 (PST) Received: from compute2.internal (compute2.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id D42845C01E6; Fri, 1 Dec 2023 15:23:55 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute2.internal (MEProxy); Fri, 01 Dec 2023 15:23:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dxuuu.xyz; h=cc :cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm3; t=1701462235; x= 1701548635; bh=gTC80DkbSwec6++klwVY+AjSyF2q8Jrio27MwPjAqCs=; b=N 5qepEM+SjCrEYitQmzwC1hP/Ky4ABTGj/pnIWWXg/Rp9jZTTKwj1gXjEzONAf5Fa LbxVnTGkblBiwQ5wZNt8R0sgOMQOCZq37OTW2IbY+Drf3/dkW9pha0LFoS598FU5 7fc3x6q0CoiAoAPd9KjTKXbPM49WDVKDfeT/H50+xWKN2xq1yxgdfiC65Jt0Smd8 h7lvEA1DvX/AILJEU9Xh6NhmH53dCg9xydKxcJz8Ibqo43WX7Z+R967j5kUgNq0w P+yGvd/bNpSAD6cZ1tdOAke9qA8LBX02jv/wj/B57Uj3OQr4dRBvtmWAaqRZDiUH 1WI0X1fPm3Iale1ZTBWMA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t=1701462235; x= 1701548635; bh=gTC80DkbSwec6++klwVY+AjSyF2q8Jrio27MwPjAqCs=; b=D dfw/66qLjQd0Zbq9BHdmH0TjFLXYjk2WsdKiNWnjEGPXy2XNWOFJObm7HeCX8tl2 GWw2xE71fPCi5eUUe4bTyVIgx85Kkp+zcSMK/fg6W6yg5L/ucEYovtVqkk1+Oa9g buDJqCJTFtVtZmooP9wM2lp2W9F0VOKzGc3CnLHAOdzuNrKKl2B3elmW6IJd7bc0 gyVXAdpD0ZZ9ZjTmiYqlj7CD3Ae67xkoDNGNP/FxtZ1LemWs3HKueZHJqeZn8PVZ 4fxgAD+K7wuOCKybWWnWYnmdCjygb3oOnha0snU80tBCYCsxKCWGruQCQKVi8mgG 8bnqrf/UEUcj/MDUGgo8g== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvkedrudeiledgudefjecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enfghrlhcuvffnffculdefhedmnecujfgurhephffvvefufffkofgjfhgggfestdekredt redttdenucfhrhhomhepffgrnhhivghlucgiuhcuoegugihusegugihuuhhurdighiiiqe enucggtffrrghtthgvrhhnpefgfefggeejhfduieekvdeuteffleeifeeuvdfhheejleej jeekgfffgefhtddtteenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrih hlfhhrohhmpegugihusegugihuuhhurdighiii X-ME-Proxy: Feedback-ID: i6a694271:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 1 Dec 2023 15:23:54 -0500 (EST) From: Daniel Xu To: davem@davemloft.net, daniel@iogearbox.net, kuba@kernel.org, edumazet@google.com, ast@kernel.org, john.fastabend@gmail.com, steffen.klassert@secunet.com, hawk@kernel.org, pabeni@redhat.com, "Herbert Xu steffen . klassert @ secunet . com" , antony.antony@secunet.com, alexei.starovoitov@gmail.com, yonghong.song@linux.dev, eddyz87@gmail.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, devel@linux-ipsec.org Subject: [PATCH ipsec-next v3 2/9] bpf: xfrm: Add bpf_xdp_xfrm_state_release() kfunc Date: Fri, 1 Dec 2023 13:23:13 -0700 Message-ID: X-Mailer: git-send-email 2.42.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" This kfunc releases a previously acquired xfrm_state from bpf_xdp_get_xfrm_state(). Co-developed-by: Antony Antony Signed-off-by: Antony Antony Signed-off-by: Daniel Xu --- net/xfrm/xfrm_state_bpf.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/net/xfrm/xfrm_state_bpf.c b/net/xfrm/xfrm_state_bpf.c index 1681825db506..1485b9da9425 100644 --- a/net/xfrm/xfrm_state_bpf.c +++ b/net/xfrm/xfrm_state_bpf.c @@ -94,10 +94,26 @@ bpf_xdp_get_xfrm_state(struct xdp_md *ctx, struct bpf_x= frm_state_opts *opts, u32 return x; } =20 +/* bpf_xdp_xfrm_state_release - Release acquired xfrm_state object + * + * This must be invoked for referenced PTR_TO_BTF_ID, and the verifier rej= ects + * the program if any references remain in the program in all of the explo= red + * states. + * + * Parameters: + * @x - Pointer to referenced xfrm_state object, obtained using + * bpf_xdp_get_xfrm_state. + */ +__bpf_kfunc void bpf_xdp_xfrm_state_release(struct xfrm_state *x) +{ + xfrm_state_put(x); +} + __bpf_kfunc_end_defs(); =20 BTF_SET8_START(xfrm_state_kfunc_set) BTF_ID_FLAGS(func, bpf_xdp_get_xfrm_state, KF_RET_NULL | KF_ACQUIRE) +BTF_ID_FLAGS(func, bpf_xdp_xfrm_state_release, KF_RELEASE) BTF_SET8_END(xfrm_state_kfunc_set) =20 static const struct btf_kfunc_id_set xfrm_state_xdp_kfunc_set =3D { --=20 2.42.1