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[ Upstream commit655c447c97] In arm_smmu_gerror_handler(), the value of the SMMU_GERROR register is filtered by GERROR_ERR_MASK. However, the GERROR_ERR_MASK does not contain the SFM bit. As a result, the subsequent error processing is not performed when only the SFM error occurs. Fixes:48ec83bcbc("iommu/arm-smmu: Add initial driver support for ARM SMMUv3 devices") Reported-by: Rui Zhu <zhurui3@huawei.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Link: https://lore.kernel.org/r/20210324081603.1074-1-thunder.leizhen@huawei.com Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.