CMN-600 doesn't have XP events for the PUB channel, but we missed the appropriate check to avoid exposing them. Fixes: 60d1504070c2 ("perf/arm-cmn: Support new IP features") Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/4c108d39a0513def63acccf09ab52b328f242aeb.1645727871.git.robin.murphy@arm.com Signed-off-by: Will Deacon <will@kernel.org>