Hi Darrick, The same code in crc32.c was helpful to measure performance and help code tuning as well as indicate correctness. Otherwise the code in crypto may be enough to test all the corner cases. If this survives the review I wonder if there is a way to combine crc32 and crc32c together somehow. I like yours because you can load/unload and not need the memory permanently. Bob -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html