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Commit d71e0171 authored by Will Deacon's avatar Will Deacon
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iommu/arm-smmu-v3: Use WRITE_ONCE() when changing validity of an STE


If, for some bizarre reason, the compiler decided to split up the write
of STE DWORD 0, we could end up making a partial structure valid.

Although this probably won't happen, follow the example of the
context-descriptor code and use WRITE_ONCE() to ensure atomicity of the
write.

Reported-by: default avatarJean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 73af06f5
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