From nobody Tue Feb 10 06:09:04 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D6C1B1FECA3 for ; Wed, 11 Dec 2024 03:12:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733886733; cv=none; b=CYW7bAzVM6Nvs1JqV5dVbXE6iCvtWg9UMaZzGH/Oi+10u77ZpkN7CwNMxjEHxyU4KV4IeBDiLCCpazNgwsxKJeN/xYPRHWfJQl6bys2p4Tek+agxTlKBx7Uoug0s68EPUp4zC0JPkPlRS5tpDaGV/1Oi9oeC3cp+OAUIbqAzUp4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733886733; c=relaxed/simple; bh=SQV9nesIDZg3IV89hJf9DcNukyegI2kFcLBPZJpMrJg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=H+BhLBDymEIVPuWuV7ii9SO5n/hmzRYUYbdWUdG7wK8qJqEW/OXjBfZ3wFOdsFDP71ctoaR9vuvur3u+2qoqbVNT5CvSokso7S17zmTooevJcBjlEiSwv8RrWc9+rInKBqDK59dPrg/p3OEbLGYUimZsmDLRRMUHNKP8kaqR4lQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WfrVZ+kD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WfrVZ+kD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 53556C4CEDD; Wed, 11 Dec 2024 03:12:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1733886733; bh=SQV9nesIDZg3IV89hJf9DcNukyegI2kFcLBPZJpMrJg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WfrVZ+kDtu4PJtaJzKGP0dtFhgpgeSI0U0ott2HSESYAHmYQQVcgdWNxh1+S1gw0n Q81Ydsq2Gf27P4aCGsAi1m07dwmbjb6Jr3WAnMzFo1+T8ZbCSXQ4+osNhwsOsu4t+3 UXtjoKpw9uZQsHmAMQ0ruBYORI9oH6x9+iHRrQnbweOr2lpk6n5sRb2l8CKeXoEh/K LaV2humIA1l4h4P4CdlkGBa/b7HS9siyybIFfO0BdSW3OKk26lPxhBC5ybmmbd3KPW h92txRsIMRxqmKujRMQojQZ/pVrStOLpE9+GbYMv23pA8fMl/5M2VsAm0dIo6Agddj W37BAgbULQZVw== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next v5 5/5] Squash to "selftests/bpf: Add mptcp_subflow bpf_iter subtest" Date: Wed, 11 Dec 2024 11:11:56 +0800 Message-ID: X-Mailer: git-send-email 2.45.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Geliang Tang Use bpf_skc_to_mptcp_sock() and mptcp_subflow_tcp_sock() instead of bpf_mptcp_sk() and bpf_mptcp_subflow_tcp_sock(). IPPROTO_MPTCP is checked in bpf_skc_to_mptcp_sock(), no need to check it in BPF program. bpf_skc_to_mptcp_sock() and bpf_mptcp_subflow_ctx() may return NULL, need to check the return values. Signed-off-by: Geliang Tang --- tools/testing/selftests/bpf/progs/mptcp_bpf.h | 1 - tools/testing/selftests/bpf/progs/mptcp_bpf_iters.c | 11 +++++------ 2 files changed, 5 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/bpf/progs/mptcp_bpf.h b/tools/testing/= selftests/bpf/progs/mptcp_bpf.h index 3b20cfd44505..b1f6e1fb467e 100644 --- a/tools/testing/selftests/bpf/progs/mptcp_bpf.h +++ b/tools/testing/selftests/bpf/progs/mptcp_bpf.h @@ -46,7 +46,6 @@ mptcp_subflow_tcp_sock(const struct mptcp_subflow_context= *subflow) extern struct mptcp_sock *bpf_mptcp_sock_acquire(struct mptcp_sock *msk) _= _ksym; extern void bpf_mptcp_sock_release(struct mptcp_sock *msk) __ksym; =20 -extern struct mptcp_sock *bpf_mptcp_sk(struct sock *sk) __ksym; extern struct mptcp_subflow_context * bpf_mptcp_subflow_ctx(const struct sock *sk) __ksym; extern struct sock * diff --git a/tools/testing/selftests/bpf/progs/mptcp_bpf_iters.c b/tools/te= sting/selftests/bpf/progs/mptcp_bpf_iters.c index 1bede22a7e3d..fd5691a4073b 100644 --- a/tools/testing/selftests/bpf/progs/mptcp_bpf_iters.c +++ b/tools/testing/selftests/bpf/progs/mptcp_bpf_iters.c @@ -21,12 +21,11 @@ int iters_subflow(struct bpf_sockopt *ctx) struct mptcp_sock *msk; int local_ids =3D 0; =20 - if (!sk || sk->protocol !=3D IPPROTO_MPTCP || - ctx->level !=3D SOL_TCP || ctx->optname !=3D TCP_IS_MPTCP) + if (ctx->level !=3D SOL_TCP || ctx->optname !=3D TCP_IS_MPTCP) return 1; =20 - msk =3D bpf_mptcp_sk((struct sock *)sk); - if (msk->pm.server_side || !msk->pm.subflows) + msk =3D bpf_skc_to_mptcp_sock(sk); + if (!msk || msk->pm.server_side || !msk->pm.subflows) return 1; =20 msk =3D bpf_mptcp_sock_acquire(msk); @@ -41,7 +40,7 @@ int iters_subflow(struct bpf_sockopt *ctx) local_ids +=3D subflow->subflow_id; =20 /* only to check the following kfunc works */ - ssk =3D bpf_mptcp_subflow_tcp_sock(subflow); + ssk =3D mptcp_subflow_tcp_sock(subflow); } =20 if (!ssk) @@ -53,7 +52,7 @@ int iters_subflow(struct bpf_sockopt *ctx) =20 /* only to check the following kfunc works */ subflow =3D bpf_mptcp_subflow_ctx(ssk); - if (subflow->token !=3D msk->token) + if (!subflow || subflow->token !=3D msk->token) goto out; =20 ids =3D local_ids; --=20 2.45.2