[PATCH net-next 0/2] ipv6: Cache pmtu on all paths of a multipath route
From: Vladimir Vdovin
Date: Sat Oct 17 2026 - 17:06:16 EST
IPv6 counterpart of commit 7d3f3b4367f3 ("net: ipv4: Cache pmtu for
all packet paths if multipath enabled"), deferred back then:
https://lore.kernel.org/netdev/ad29493c-9e48-4a94-b327-e47af3a9d137@xxxxxxxxxx/
Patch 1 creates the PMTU exception on every path of a multipath route,
patch 2 adds the IPv6 variant of the pmtu.sh multipath test, which
fails without patch 1.
Vladimir Vdovin (2):
ipv6: Cache pmtu for all paths of a multipath route
selftests: net: pmtu: Add IPv6 multipath exceptions test
net/ipv6/route.c | 88 ++++++++++-----
tools/testing/selftests/net/pmtu.sh | 162 +++++++++++++++++++++-------
2 files changed, 185 insertions(+), 65 deletions(-)
base-commit: 98c2ad4f5d805dbc1ea436a334ee59311806a48c
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2.56.0