All of lore.kernel.org
 help / color / mirror / Atom feed
* FAILED: patch "[PATCH] mptcp: fix NL PM announced address accounting" failed to apply to 5.10-stable tree
@ 2024-08-07 14:14 gregkh
  2024-08-09 10:54 ` [PATCH 5.10.y] mptcp: fix NL PM announced address accounting Matthieu Baerts (NGI0)
  0 siblings, 1 reply; 3+ messages in thread
From: gregkh @ 2024-08-07 14:14 UTC (permalink / raw)
  To: pabeni, davem, matttbe; +Cc: stable


The patch below does not apply to the 5.10-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 <stable@vger.kernel.org>.

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-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x 4b317e0eb287bd30a1b329513531157c25e8b692
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2024080706-omnivore-undermost-43f1@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..

Possible dependencies:

4b317e0eb287 ("mptcp: fix NL PM announced address accounting")
6fa0174a7c86 ("mptcp: more careful RM_ADDR generation")
7d9bf018f907 ("selftests: mptcp: update output info of chk_rm_nr")
327b9a94e2a8 ("selftests: mptcp: more stable join tests-cases")
6bb3ab4913e9 ("selftests: mptcp: add MP_FAIL mibs check")
f7713dd5d23a ("selftests: mptcp: delete uncontinuous removing ids")
4f49d63352da ("selftests: mptcp: add fullmesh testcases")
0cddb4a6f4e3 ("selftests: mptcp: add deny_join_id0 testcases")
af66d3e1c3fa ("selftests: mptcp: enable checksum in mptcp_join.sh")
5e287fe76149 ("selftests: mptcp: remove id 0 address testcases")
ef360019db40 ("selftests: mptcp: signal addresses testcases")
efd13b71a3fa ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 4b317e0eb287bd30a1b329513531157c25e8b692 Mon Sep 17 00:00:00 2001
From: Paolo Abeni <pabeni@redhat.com>
Date: Sat, 27 Jul 2024 11:04:00 +0200
Subject: [PATCH] mptcp: fix NL PM announced address accounting

Currently the per connection announced address counter is never
decreased. As a consequence, after connection establishment, if
the NL PM deletes an endpoint and adds a new/different one, no
additional subflow is created for the new endpoint even if the
current limits allow that.

Address the issue properly updating the signaled address counter
every time the NL PM removes such addresses.

Fixes: 01cacb00b35c ("mptcp: add netlink-based PM")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index b399f2b7a369..f65831de5c1a 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -1401,6 +1401,7 @@ static bool mptcp_pm_remove_anno_addr(struct mptcp_sock *msk,
 	ret = remove_anno_list_by_saddr(msk, addr);
 	if (ret || force) {
 		spin_lock_bh(&msk->pm.lock);
+		msk->pm.add_addr_signaled -= ret;
 		mptcp_pm_remove_addr(msk, &list);
 		spin_unlock_bh(&msk->pm.lock);
 	}
@@ -1565,17 +1566,18 @@ static void mptcp_pm_remove_addrs_and_subflows(struct mptcp_sock *msk,
 	struct mptcp_pm_addr_entry *entry;
 
 	list_for_each_entry(entry, rm_list, list) {
-		if (lookup_subflow_by_saddr(&msk->conn_list, &entry->addr) &&
-		    slist.nr < MPTCP_RM_IDS_MAX)
+		if (slist.nr < MPTCP_RM_IDS_MAX &&
+		    lookup_subflow_by_saddr(&msk->conn_list, &entry->addr))
 			slist.ids[slist.nr++] = entry->addr.id;
 
-		if (remove_anno_list_by_saddr(msk, &entry->addr) &&
-		    alist.nr < MPTCP_RM_IDS_MAX)
+		if (alist.nr < MPTCP_RM_IDS_MAX &&
+		    remove_anno_list_by_saddr(msk, &entry->addr))
 			alist.ids[alist.nr++] = entry->addr.id;
 	}
 
 	if (alist.nr) {
 		spin_lock_bh(&msk->pm.lock);
+		msk->pm.add_addr_signaled -= alist.nr;
 		mptcp_pm_remove_addr(msk, &alist);
 		spin_unlock_bh(&msk->pm.lock);
 	}


^ permalink raw reply related	[flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-08-12 12:45 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-08-07 14:14 FAILED: patch "[PATCH] mptcp: fix NL PM announced address accounting" failed to apply to 5.10-stable tree gregkh
2024-08-09 10:54 ` [PATCH 5.10.y] mptcp: fix NL PM announced address accounting Matthieu Baerts (NGI0)
2024-08-12 12:44   ` Patch "mptcp: fix NL PM announced address accounting" has been added to the 5.10-stable tree gregkh

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.