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a33bf8d8ce
This patch restores the iommu_flush_iotlb_all() function. Commit69e5a17511("iommu: Remove useless flush from iommu_create_device_direct_mappings()") claims it removed the last call-site, except it did not. There is still at least one caller in drivers/gpu/drm/msm/msm_iommu.c so keep the function around until all call-sites are updated. Cc: Jason Gunthorpe <jgg@ziepe.ca> Fixes:69e5a17511("iommu: Remove useless flush from iommu_create_device_direct_mappings()") Acked-by: Will Deacon <will@kernel.org> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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 reStructuredText 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.