This appears to be the regression. Rebuilding the kernel w/ CONFIG_ARM64_ERRATUM_843419=n works around it.
commit bf0cdf4bfb785129798bc42d6ee8e2558f0934da Author: Will Deacon <email address hidden> Date: Tue Mar 17 12:15:02 2015 +0000
arm64: errata: add module build workaround for erratum #843419
commit df057cc7b4fa59e9b55f07ffdb6c62bf02e99a00 upstream.
This appears to be the regression. Rebuilding the kernel w/ CONFIG_ ARM64_ERRATUM_ 843419= n works around it.
commit bf0cdf4bfb78512 9798bc42d6ee8e2 558f0934da
Author: Will Deacon <email address hidden>
Date: Tue Mar 17 12:15:02 2015 +0000
arm64: errata: add module build workaround for erratum #843419
commit df057cc7b4fa59e 9b55f07ffdb6c62 bf02e99a00 upstream.