From patchwork Tue Oct 22 09:14:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geliang Tang X-Patchwork-Id: 13845395 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 D6E8E2209B for ; Tue, 22 Oct 2024 09:15:28 +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=1729588528; cv=none; b=VRFcpeBWzruWQjLU1j4Ff6Bbm/HkTEVxLvek2hYsCYsjYLaW0BIHV3BnudVaMf1iahfGlma0bNn9iXJkQMTkByYPmP++fFrxJJY84sWufZ2XaroNllb5QPgMCMeYVz6NCPNhiRaZyth2/PNezZmKcXzYahkDa8YIpJ7dxO/bg/E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729588528; c=relaxed/simple; bh=Ki0ce+y1gl18Nc11rqcw6lh+KYRp9MDuLKt3n1D9K2E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=s97OkXTZPVfVLcwB8bUO3G7Ils/2cIWdfrgyvVG3AKVep27rW8/KOSIvAaQHAXHcA7OKH3Bi4AqnepFqzZmkBs3adqpsDje65y+NLgzqZ4XJpHxpRGuuZEmPNqypF1+yiAPhYlQhlk6FiWJnbThNlu69b9s6hJxiVRuC4n2e4gk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UfAnwDi4; 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="UfAnwDi4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 52C19C4CEC3; Tue, 22 Oct 2024 09:15:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729588528; bh=Ki0ce+y1gl18Nc11rqcw6lh+KYRp9MDuLKt3n1D9K2E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UfAnwDi41esysTLgoLisyqmcsin+S1kF8hdIImyzcxbTHDdoqhR8GVlfg+U7f6TmR tDMcrt8PDNsOaleNJHRpF7O59lgQtWgOIlySPAXSlQ1kc5Bg/2ybH7UNWxtuEwHnF5 C8HFlM6rVuH5eEPOBpzpJr/eajDYMHOezCEknTuz+GqVjeCyYkKhYyzpBsbMTDyxaE 9DWrQzu/1/fqiJOmzQjeo9LfYq0B7p0z6iChOcloKs85M7Ue1gcD22tqO6PBSlKJlF kZK2vioIVVGsGUnxEn+NPKS5RpPwkO/SfsP1BtHo5hOv+tXOpp6cwdMuFQBIbMLWQ3 stORbEBt6mKTg== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next v2 22/36] mptcp: change is_backup interfaces as get_flags Date: Tue, 22 Oct 2024 17:14:30 +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 From: Geliang Tang The is_backup() interface of path manager is not very common. A more common approach is to add a get_flags() interface to obtain the flags value of a given address. Then is_backup() can be implemented through get_flags() by test whether backup flag is set in the flags value. Signed-off-by: Geliang Tang --- net/mptcp/pm.c | 7 +++++-- net/mptcp/pm_netlink.c | 8 ++++---- net/mptcp/pm_userspace.c | 10 +++++----- net/mptcp/protocol.h | 4 ++-- 4 files changed, 16 insertions(+), 13 deletions(-) diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index d28e844eba2d..c2229e46de1a 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -430,13 +430,16 @@ int mptcp_pm_get_local_id(struct mptcp_sock *msk, struct sock_common *skc) bool mptcp_pm_is_backup(struct mptcp_sock *msk, struct sock_common *skc) { struct mptcp_addr_info skc_local; + u8 flags; mptcp_local_address((struct sock_common *)skc, &skc_local); if (mptcp_pm_is_userspace(msk)) - return mptcp_userspace_pm_is_backup(msk, &skc_local); + flags = mptcp_userspace_pm_get_flags(msk, &skc_local); + else + flags = mptcp_pm_nl_get_flags(msk, &skc_local); - return mptcp_pm_nl_is_backup(msk, &skc_local); + return !!(flags & MPTCP_PM_ADDR_FLAG_BACKUP); } void mptcp_pm_subflow_chk_stale(const struct mptcp_sock *msk, struct sock *ssk) diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c index 032c9eb2e48d..287e715bcf68 100644 --- a/net/mptcp/pm_netlink.c +++ b/net/mptcp/pm_netlink.c @@ -1166,19 +1166,19 @@ int mptcp_pm_nl_get_local_id(struct mptcp_sock *msk, struct mptcp_pm_addr_entry return ret; } -bool mptcp_pm_nl_is_backup(struct mptcp_sock *msk, struct mptcp_addr_info *skc) +u8 mptcp_pm_nl_get_flags(struct mptcp_sock *msk, struct mptcp_addr_info *skc) { struct pm_nl_pernet *pernet = pm_nl_get_pernet_from_msk(msk); struct mptcp_pm_addr_entry *entry; - bool backup = false; + u8 flags = 0; rcu_read_lock(); entry = __lookup_addr(pernet, skc); if (entry) - backup = !!(entry->flags & MPTCP_PM_ADDR_FLAG_BACKUP); + flags = entry->flags; rcu_read_unlock(); - return backup; + return flags; } #define MPTCP_PM_CMD_GRP_OFFSET 0 diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c index c749f5dccdf9..0012b1965421 100644 --- a/net/mptcp/pm_userspace.c +++ b/net/mptcp/pm_userspace.c @@ -149,19 +149,19 @@ int mptcp_userspace_pm_get_local_id(struct mptcp_sock *msk, return mptcp_userspace_pm_append_new_local_addr(msk, local, true); } -bool mptcp_userspace_pm_is_backup(struct mptcp_sock *msk, - struct mptcp_addr_info *skc) +u8 mptcp_userspace_pm_get_flags(struct mptcp_sock *msk, + struct mptcp_addr_info *skc) { struct mptcp_pm_addr_entry *entry; - bool backup = false; + u8 flags = 0; spin_lock_bh(&msk->pm.lock); entry = mptcp_userspace_pm_lookup_addr(msk, skc); if (entry) - backup = !!(entry->flags & MPTCP_PM_ADDR_FLAG_BACKUP); + flags = entry->flags; spin_unlock_bh(&msk->pm.lock); - return backup; + return flags; } static struct mptcp_sock *mptcp_userspace_pm_get_sock(const struct genl_info *info) diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 4ff6b7e37947..8efd288bd247 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -1130,8 +1130,8 @@ int mptcp_pm_get_local_id(struct mptcp_sock *msk, struct sock_common *skc); int mptcp_pm_nl_get_local_id(struct mptcp_sock *msk, struct mptcp_pm_addr_entry *local); int mptcp_userspace_pm_get_local_id(struct mptcp_sock *msk, struct mptcp_pm_addr_entry *local); bool mptcp_pm_is_backup(struct mptcp_sock *msk, struct sock_common *skc); -bool mptcp_pm_nl_is_backup(struct mptcp_sock *msk, struct mptcp_addr_info *skc); -bool mptcp_userspace_pm_is_backup(struct mptcp_sock *msk, struct mptcp_addr_info *skc); +u8 mptcp_pm_nl_get_flags(struct mptcp_sock *msk, struct mptcp_addr_info *skc); +u8 mptcp_userspace_pm_get_flags(struct mptcp_sock *msk, struct mptcp_addr_info *skc); int mptcp_userspace_pm_dump_addr(struct mptcp_id_bitmap *bitmap, const struct genl_info *info); int mptcp_userspace_pm_get_addr(u8 id, struct mptcp_pm_addr_entry *addr,