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This patch has been wroten by Jason Liu years ago but never send upstream. I have tried to contact the author on multiple email addresses but I haven't found any valid one... I have keep Jason's sign-off and just rebase the patch on to v5-rc6. Benjamin Gaignard (2): ARM: errata 814220-B-Cache maintenance by set/way operations can execute out of order. ARM: stm32: select ARM errata 814220 arch/arm/Kconfig | 10 ++++++++++ arch/arm/mach-stm32/Kconfig | 1 + arch/arm/mm/cache-v7.S | 3 +++ 3 files changed, 14 insertions(+) -- 2.15.0