summaryrefslogtreecommitdiff
path: root/arch/x86/boot/string.c
diff options
context:
space:
mode:
authorBo Yan <byan@nvidia.com>2015-03-31 23:30:48 +0300
committerWill Deacon <will.deacon@arm.com>2015-04-01 13:12:03 +0300
commit6d1966dfd6e0ad2f8aa4b664ae1a62e33abe1998 (patch)
tree3b3614dd3e76d608abb56fa9bf781c437f18b66b /arch/x86/boot/string.c
parent905e8c5dcaa147163672b06fe9dcb5abaacbc711 (diff)
downloadlinux-6d1966dfd6e0ad2f8aa4b664ae1a62e33abe1998.tar.xz
arm64: fix midr range for Cortex-A57 erratum 832075
Register MIDR_EL1 is masked to get variant and revision fields, then compared against midr_range_min and midr_range_max when checking whether CPU is affected by any particular erratum. However, variant and revision fields in MIDR_EL1 are separated by 16 bits, so the min and max of midr range should be constructed accordingly, otherwise the patch will not be applied when variant field is non-0. Cc: stable@vger.kernel.org # 3.19+ Acked-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Bo Yan <byan@nvidia.com> [will: use MIDR_VARIANT_SHIFT to construct upper bound] Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/x86/boot/string.c')
0 files changed, 0 insertions, 0 deletions