diff options
| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2019-10-14 13:32:54 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-17 13:41:04 -0700 |
| commit | bf0313653f035ae4cf9cc061bdb3a0a769946caa (patch) | |
| tree | 66c82f8f017f5f61209d4fb2975af87d060678c2 /arch/arm64/mm | |
| parent | 8eba41684829532767b273e040de2db3d7dc5dab (diff) | |
arm64: Rename cpuid_feature field extract routines
commit 28c5dcb22f90113dea101b0421bc6971bccb7a74 upstream
Now that we have a clear understanding of the sign of a feature,
rename the routines to reflect the sign, so that it is not misused.
The cpuid_feature_extract_field() now accepts a 'sign' parameter.
This makes sure that the arm64_ftr_value() extracts the feature
field properly for signed fields.
Cc: stable@vger.kernel.org # v4.4
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/arm64/mm')
| -rw-r--r-- | arch/arm64/mm/context.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/mm/context.c b/arch/arm64/mm/context.c index e87f53ff5f58..5c8759cd66f1 100644 --- a/arch/arm64/mm/context.c +++ b/arch/arm64/mm/context.c @@ -187,7 +187,8 @@ switch_mm_fastpath: static int asids_init(void) { - int fld = cpuid_feature_extract_field(read_cpuid(ID_AA64MMFR0_EL1), 4); + int fld = cpuid_feature_extract_unsigned_field(read_cpuid(ID_AA64MMFR0_EL1), + ID_AA64MMFR0_ASID_SHIFT); switch (fld) { default: |