From nobody Wed Dec 17 21:01:25 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 7A7E7C61D97 for ; Wed, 22 Nov 2023 18:21:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344172AbjKVSVV (ORCPT ); Wed, 22 Nov 2023 13:21:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41530 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232178AbjKVSVJ (ORCPT ); Wed, 22 Nov 2023 13:21:09 -0500 Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6133D1AB; Wed, 22 Nov 2023 10:21:03 -0800 (PST) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id CD3C35C0150; Wed, 22 Nov 2023 13:21:02 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Wed, 22 Nov 2023 13:21:02 -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=1700677262; x= 1700763662; bh=1dQDEOh8HTBoY0VDz9uX6NM7X39IZ5Fcq3iL98Lsjko=; b=W bEIaFB5RMblwglobGDqjQZJgQNdzxHC4uLbYHHPbbwYVAtJBNI4xSjlJ7Oa4Es8X yjPYJG1S+qdaoJ0dQYpv5Bm00UC5sIrDgjPDHHYuYu8QDIG1iekzscBLDMalXrWZ RdPFItbBo6F663rAnwSpYP1BA10Z6LvW0DCx0m0HTuvFNthGazCNjzAO7V9jmgjv 6z76wOQp9Qyjz0xhTQX8Yw02n5GitAninYKeLBqR7t+Js+DN3HlW8QvA+N/89Mbg U4NakqMumSFfRj85vpAW06FnNGR8A2q/J45N25LE7dhweaFElnDeiDkGPtFEaPbz Ln4SMq6BGuV+kCRGf4jbg== 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=1700677262; x= 1700763662; bh=1dQDEOh8HTBoY0VDz9uX6NM7X39IZ5Fcq3iL98Lsjko=; b=1 Q9Mov8YxcEZsHKUjAR6PUL+qQNc0RYCYLfSsjgRJ5k79mgnV/e3oepx7n2D5i03b fjwUlNn+SJ4NSyTWfD2Glp9QOO7w2R39fB82PLA2uVM9/Ed+utYKoHv1MYhGX2pD cs/TBJilUT3ff3n0Fne8wQsA0UKaSAPLYfIUaqCWL0lStm/+moh2gLxnhRxJydVM tKa7WksFokIyt9mBVXk0GLuHrR1EqeXh7Z/vlQ+JwlLnPjxHvFZA28lnqgZAQR/p wTL8KAQzCpYF2g0VD9ahWaQxuUAq/47GUz8XZWL6C56RuqLATv3icnoPEE6TUhUG PBVgeaNzzR7dnqKQkrSeA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvkedrudehuddguddutdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enfghrlhcuvffnffculdefhedmnecujfgurhephffvvefufffkofgjfhgggfestdekredt redttdenucfhrhhomhepffgrnhhivghlucgiuhcuoegugihusegugihuuhhurdighiiiqe enucggtffrrghtthgvrhhnpefgfefggeejhfduieekvdeuteffleeifeeuvdfhheejleej jeekgfffgefhtddtteenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrih hlfhhrohhmpegugihusegugihuuhhurdighiii X-ME-Proxy: Feedback-ID: i6a694271:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 22 Nov 2023 13:21:01 -0500 (EST) From: Daniel Xu To: john.fastabend@gmail.com, Herbert Xu , davem@davemloft.net, ast@kernel.org, daniel@iogearbox.net, pabeni@redhat.com, hawk@kernel.org, kuba@kernel.org, edumazet@google.com, steffen.klassert@secunet.com, antony.antony@secunet.com, alexei.starovoitov@gmail.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, devel@linux-ipsec.org Subject: [PATCH ipsec-next v1 2/7] bpf: xfrm: Add bpf_xdp_xfrm_state_release() kfunc Date: Wed, 22 Nov 2023 11:20:23 -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 0c1f2f91125c..33d1b00fedbd 100644 --- a/net/xfrm/xfrm_state_bpf.c +++ b/net/xfrm/xfrm_state_bpf.c @@ -93,10 +93,26 @@ 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); +} + __diag_pop() =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