ID:17952 <name> unused RX clock workaround is enabled. It will be applied to <number> unused RX channel locations.

CAUSE: Specifies the number of unused RX channel locations.

ACTION: To preserve the performance of the unused RX channels over time, add the assignment 'set_global_assignment -name ENABLE_UNUSED_RX_CLOCK_WORKAROUND ON' in your QSF file.