From: "Matthew R. Ochs" <mrochs@xxxxxxxxxxxxxxxxxx> The original design of the cxlflash driver required AFU commands to convey state information across multiple threads. The IOASA "host use" byte was used to track if a command was done, errored, or timed out. A per-command spin lock was used to serialize access to this byte. As this is no longer required with the introduction of completions and various refactoring over time, the spin lock, state tracking, and associated code can be removed. To support the simplification, the wait_resp() routine is refactored to return a success or failure. Additionally, as the simplification to the AFU internal command routine, explicit assignments of AFU command fields to zero are removed as the memory is zeroed upon allocation. Signed-off-by: Matthew R. Ochs <mrochs@xxxxxxxxxxxxxxxxxx>
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