I'm thinking I should really look into finding the specific commits their SDK is based on.
My reasoning for them not just being the listed versions is that the SDK that I have includes modifications to documentation for x86 (which I don't think hisilicon makes SoC's for), so the documentation changes are likely from other kernel commits.
Maybe start incrementing the commit of these, then check how large the diff is. Then keep incrementing the commit until there are the least differences with the SDK's source code.
I'm thinking I should really look into finding the specific commits their SDK is based on. My reasoning for them not just being the listed versions is that the SDK that I have includes modifications to documentation for x86 (which I don't think hisilicon makes SoC's for), so the documentation changes are likely from other kernel commits. Maybe start incrementing the commit of these, then check how large the diff is. Then keep incrementing the commit until there are the least differences with the SDK's source code.