From nobody Wed Dec 17 10:59:28 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 EEDBBC4167B for ; Tue, 28 Nov 2023 17:55:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346753AbjK1RzD (ORCPT ); Tue, 28 Nov 2023 12:55:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346550AbjK1Rys (ORCPT ); Tue, 28 Nov 2023 12:54:48 -0500 Received: from out4-smtp.messagingengine.com (out4-smtp.messagingengine.com [66.111.4.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 317EB1707; Tue, 28 Nov 2023 09:54:54 -0800 (PST) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id 90CFA5C00CC; Tue, 28 Nov 2023 12:54:53 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute1.internal (MEProxy); Tue, 28 Nov 2023 12:54:53 -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=1701194093; x= 1701280493; bh=gTC80DkbSwec6++klwVY+AjSyF2q8Jrio27MwPjAqCs=; b=C aGi8k5sHfniVuQkeLjNo+EwdelKOnWfBnyMb/NMRdFN2srfwApTVGpdTK/n3qohb eMw/JDKfn8ZfPFNy3nCGUuarKaN1cjpuIxbTJ/adrtrwGs3rlCv8pL4dHkcsZsjY SqSZsBm3a9UO2Vz47jVh/1TuvUgD5kOn6PsJFBFHCyGn6aWwDb/k1sKqF9E7cvn2 4F60FeOpMXQ2au9hMVsWUDnojnzpa60ZJLi2muhcXN7J99UxGVA7oK1Hy1dTyczu WnrHI0Uecqqj4K/WuwloljYHPOb+DmHTlBTFl/XMMUkN73DrxfqXxgxcnc0xMHxx naRv7BF5NU0P/VbphyTIw== 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=1701194093; x= 1701280493; bh=gTC80DkbSwec6++klwVY+AjSyF2q8Jrio27MwPjAqCs=; b=W J3Q6IC/dJzA+vWKAxn4aHyxUbT/H9FEqv/g2vfQYbo/zy1gS5pVTBZF0LYuP18LN R6dMSn66K4WVmofy+pKRKy6F18e4UXBpTdm4wO/mlzfL027XpYQx5e4bzUN9x+75 ENITXXqyEplY3QWT0LJ0cDppvGaKWs5+VMsISd9eJcYZtZcxOI2Cx6Mp5RW7lF9e enHuDaCjkAlhIEJob6S/uwr/FbT/5u1WmI/mTXDQmymriX657vRhtMo4z14sM+mO uIUtCwcNVvp+pXurm+Y4+73YsXkWM7kPIAsplqsbc2lNNxn9B3zUf/mQqpmctW96 glw8nkjQd2iACwE17d1HQ== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvkedrudeifedguddthecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enfghrlhcuvffnffculdefhedmnecujfgurhephffvvefufffkofgjfhgggfestdekredt redttdenucfhrhhomhepffgrnhhivghlucgiuhcuoegugihusegugihuuhhurdighiiiqe enucggtffrrghtthgvrhhnpefgfefggeejhfduieekvdeuteffleeifeeuvdfhheejleej jeekgfffgefhtddtteenucevlhhushhtvghrufhiiigvpedunecurfgrrhgrmhepmhgrih hlfhhrohhmpegugihusegugihuuhhurdighiii X-ME-Proxy: Feedback-ID: i6a694271:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 28 Nov 2023 12:54:52 -0500 (EST) From: Daniel Xu To: kuba@kernel.org, steffen.klassert@secunet.com, john.fastabend@gmail.com, Herbert Xu , davem@davemloft.net, hawk@kernel.org, daniel@iogearbox.net, pabeni@redhat.com, edumazet@google.com, ast@kernel.org, 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 v2 2/6] bpf: xfrm: Add bpf_xdp_xfrm_state_release() kfunc Date: Tue, 28 Nov 2023 10:54:22 -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