[PATCH v2 1/9] arm64: cpufeature: treat unknown fields as RES0

From: Mark Rutland Any fields not defined in an arm64_ftr_bits entry are propagated to the system-wide register value in init_cpu_ftr_reg(), and while we require that these strictly match for the sanity checks, we don't update them in update_cpu_ftr_reg(). Generally, the

[PATCH v2 1/9] arm64: cpufeature: treat unknown fields as RES0

From: Mark Rutland Any fields not defined in an arm64_ftr_bits entry are propagated to the system-wide register value in init_cpu_ftr_reg(), and while we require that these strictly match for the sanity checks, we don't update them in update_cpu_ftr_reg(). Generally, the lack of an