• David S. Miller's avatar
    [SPARC64]: Temporarily remove IOMMU merging code. · 38192d52
    David S. Miller authored
    Changeset fde6a3c8 ("iommu sg merging:
    sparc64: make iommu respect the segment size limits") broke sparc64
    because whilst it added the segment limiting code to the first pass of
    SG mapping (in prepare_sg()) it did not add matching code to the
    second pass handling (in fill_sg())
    
    As a result the two passes disagree where the segment boundaries
    should be, resulting in OOPSes, DMA corruption, and corrupted
    superblocks.
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    38192d52
io.h 13.1 KB