Re: [PATCH v7 3/4] arm64: Don't use KPTI where we have E0PD

On Thu, Nov 07, 2019 at 12:01:10PM +0000, Suzuki K Poulose wrote:

quoted

+		if ((ftr >> ID_AA64MMFR2_E0PD_SHIFT) & 0xf)

nit: You may use the existing helper :
	cpuid_feature_extract_unsigned_field(ftr, ID_AA64MMFR2_E0PD_SHIFT)

Actually, the name of the helper is so verbose that it's makes
formatting things into 80 columns hard, you end up with something like:

		ftr = read_sysreg_s(SYS_ID_AA64MMFR2_EL1);
		if (cpuid_feature_extract_unsigned_field(ftr,
					ID_AA64MMFR2_E0PD_SHIFT))

which is awkward.