From mboxrd@z Thu Jan 1 00:00:00 1970 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 81B365A7B9 for ; Mon, 26 Feb 2024 13:04:57 +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=1708952697; cv=none; b=dmXqfhuhPE5m/W3tu5cxMR2v6rgRqdmieLlRAGXpMHug15yhOqI6U66psb0M3Bin64owAB83ayNHMwgspM6QP1ohtl78xyug7U488QYAto2d0f3VwYN44cWv0Bp1Q52X3hwWPrVue/DnJ0y32Hcpr2lcxZyABJcLsLxTwMhICdE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708952697; c=relaxed/simple; bh=/EDcZp3lF8lr3aOZqEDoFyQK0h5pyhF4fMeE6drQTkU=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=J8nEce/xvh8LyLh8Vnsvfm5GojYFjHm4oRtD9RHFFlo/GRNZuDtEmwqUfckudtM0QoF8tPQrmLFzaFH4zvhi6RhsoeDUp+2j/aqjuf2ps6xw7/SCPfwBUg6f/upm425yxYAeMyaPjvFMM1Af+RvDbnn0NP1+GaKbwtFehDaN76Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=aT/hYp4M; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="aT/hYp4M" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BE629C433C7; Mon, 26 Feb 2024 13:04:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1708952697; bh=/EDcZp3lF8lr3aOZqEDoFyQK0h5pyhF4fMeE6drQTkU=; h=Subject:To:Cc:From:Date:From; b=aT/hYp4MZ5ijq8Nc8SvzoOcxmfy7G3M3Ub9s4j6KwqJFTKViHWblVB8TMq/UktE75 oMOYkMkSPleJntguMI9CXilFK0BgZGx/Wt8hD0DIs6MYEVxsNSXGRWz+vU0WasW4Pz 5QQoTMNWkYkRWHWXLvczt55wRtFYhMSoTJLBYZXQ= Subject: FAILED: patch "[PATCH] mptcp: add needs_id for netlink appending addr" failed to apply to 6.6-stable tree To: tanggeliang@kylinos.cn,davem@davemloft.net,martineau@kernel.org,matttbe@kernel.org Cc: From: Date: Mon, 26 Feb 2024 14:04:54 +0100 Message-ID: <2024022654-senate-unleaded-7ae3@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 584f3894262634596532cf43a5e782e34a0ce374 # git commit -s git send-email --to '' --in-reply-to '2024022654-senate-unleaded-7ae3@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: 584f38942626 ("mptcp: add needs_id for netlink appending addr") aab4d8564947 ("net: mptcp: use policy generated by YAML spec") 1e07938e29c5 ("net: mptcp: rename netlink handlers to mptcp_pm_nl__{doit,dumpit}") 1d0507f46843 ("net: mptcp: convert netlink from small_ops to ops") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 584f3894262634596532cf43a5e782e34a0ce374 Mon Sep 17 00:00:00 2001 From: Geliang Tang Date: Thu, 15 Feb 2024 19:25:29 +0100 Subject: [PATCH] mptcp: add needs_id for netlink appending addr Just the same as userspace PM, a new parameter needs_id is added for in-kernel PM mptcp_pm_nl_append_new_local_addr() too. Add a new helper mptcp_pm_has_addr_attr_id() to check whether an address ID is set from PM or not. In mptcp_pm_nl_get_local_id(), needs_id is always true, but in mptcp_pm_nl_add_addr_doit(), pass mptcp_pm_has_addr_attr_id() to needs_it. Fixes: efd5a4c04e18 ("mptcp: add the address ID assignment bitmap") Cc: stable@vger.kernel.org Signed-off-by: Geliang Tang Reviewed-by: Mat Martineau Signed-off-by: Matthieu Baerts (NGI0) Signed-off-by: David S. Miller diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c index 287a60381eae..a24c9128dee9 100644 --- a/net/mptcp/pm_netlink.c +++ b/net/mptcp/pm_netlink.c @@ -901,7 +901,8 @@ static void __mptcp_pm_release_addr_entry(struct mptcp_pm_addr_entry *entry) } static int mptcp_pm_nl_append_new_local_addr(struct pm_nl_pernet *pernet, - struct mptcp_pm_addr_entry *entry) + struct mptcp_pm_addr_entry *entry, + bool needs_id) { struct mptcp_pm_addr_entry *cur, *del_entry = NULL; unsigned int addr_max; @@ -949,7 +950,7 @@ static int mptcp_pm_nl_append_new_local_addr(struct pm_nl_pernet *pernet, } } - if (!entry->addr.id) { + if (!entry->addr.id && needs_id) { find_next: entry->addr.id = find_next_zero_bit(pernet->id_bitmap, MPTCP_PM_MAX_ADDR_ID + 1, @@ -960,7 +961,7 @@ static int mptcp_pm_nl_append_new_local_addr(struct pm_nl_pernet *pernet, } } - if (!entry->addr.id) + if (!entry->addr.id && needs_id) goto out; __set_bit(entry->addr.id, pernet->id_bitmap); @@ -1092,7 +1093,7 @@ int mptcp_pm_nl_get_local_id(struct mptcp_sock *msk, struct mptcp_addr_info *skc entry->ifindex = 0; entry->flags = MPTCP_PM_ADDR_FLAG_IMPLICIT; entry->lsk = NULL; - ret = mptcp_pm_nl_append_new_local_addr(pernet, entry); + ret = mptcp_pm_nl_append_new_local_addr(pernet, entry, true); if (ret < 0) kfree(entry); @@ -1285,6 +1286,18 @@ static int mptcp_nl_add_subflow_or_signal_addr(struct net *net) return 0; } +static bool mptcp_pm_has_addr_attr_id(const struct nlattr *attr, + struct genl_info *info) +{ + struct nlattr *tb[MPTCP_PM_ADDR_ATTR_MAX + 1]; + + if (!nla_parse_nested_deprecated(tb, MPTCP_PM_ADDR_ATTR_MAX, attr, + mptcp_pm_address_nl_policy, info->extack) && + tb[MPTCP_PM_ADDR_ATTR_ID]) + return true; + return false; +} + int mptcp_pm_nl_add_addr_doit(struct sk_buff *skb, struct genl_info *info) { struct nlattr *attr = info->attrs[MPTCP_PM_ENDPOINT_ADDR]; @@ -1326,7 +1339,8 @@ int mptcp_pm_nl_add_addr_doit(struct sk_buff *skb, struct genl_info *info) goto out_free; } } - ret = mptcp_pm_nl_append_new_local_addr(pernet, entry); + ret = mptcp_pm_nl_append_new_local_addr(pernet, entry, + !mptcp_pm_has_addr_attr_id(attr, info)); if (ret < 0) { GENL_SET_ERR_MSG_FMT(info, "too many addresses or duplicate one: %d", ret); goto out_free;