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Yan Burman authored
Running with DMA_API_DEBUG enabled and not checking for DMA mapping errors triggers a kernel stack trace with "DMA-API: device driver failed to check map error" message. Add these checks to the MAD module, both to be be more robust and also eliminate these false-positive stack traces. Signed-off-by: Yan Burman <yanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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