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efa: Fix CQ poll after QP destroy #1616

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@mrgolin mrgolin commented Jun 19, 2025

After a QP has been destroyed there might still be pending CQEs. As an optimization for some cases, poll functions ignore CQs that are not in use by any QP, preventing completions from being read after destruction of the last QP that uses this CQ. Remove this optimization.

After a QP has been destroyed there might still be pending CQEs. As an
optimization for some cases, poll functions ignore CQs that are not in
use by any QP, preventing completions from being read after destruction
of the last QP that uses this CQ. Remove this optimization.

Signed-off-by: Michael Margolin <[email protected]>
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