selftests: net: avoid just another constant wait
[ Upstream commit 691bb4e4 ] Using hard-coded constant timeout to wait for some expected event is deemed to fail sooner or later, especially in slow env. Our CI has spotted another of such race: # TEST: ipv6: cleanup of cached exceptions - nexthop objects [FAIL] # can't delete veth device in a timely manner, PMTU dst likely leaked Replace the crude sleep with a loop looking for the expected condition at low interval for a much longer range. Fixes: b3cc4f8a ("selftests: pmtu: add explicit tests for PMTU exceptions cleanup") Signed-off-by:Paolo Abeni <pabeni@redhat.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/fd5c745e9bb665b724473af6a9373a8c2a62b247.1706812005.git.pabeni@redhat.com Signed-off-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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4bd05772
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