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Save 7k of text space by using simpler crc32 for standalone case.

Authored by imp on Mar 30 2020, 5:33 PM.



We don't need all that fancy optimization in the boot loader, so use a
simplified version of the CRC function. We could save more by doing it one bit
at a time rather than 32, but this is the biggest savings at the smallest
performance hit.

With LUA and verfied exec, gptboot, gptzfsboot and friends are pushing the ~530k
limit and every little bit helps.

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allanjude added a subscriber: allanjude.

This seems like a good way to cut down the size

Reviewed By: allanjude

This revision is now accepted and ready to land.Mar 30 2020, 5:36 PM
This revision was automatically updated to reflect the committed changes.