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Back in the day, rcutorture was about the only thing that tested off-stack CPU masks, but now any arm64 system with more than 256 CPUs tests it full time. In fact, it is necessary to hack the kernel to prevent such a system from testing off-stack CPU masks. This means that there is no longer much point in rcutorture going out of its way to test this. And given the differences in how CPUMASK_OFFSTACK is enabled in x86 and arm64, rcutorture would need to go out of its way. This commit therefore removes CONFIG_CPUMASK_OFFSTACK=y (and the CONFIG_MAXSMP=y required to enable it on x86) from TREE01. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>