Hello Some crypto drivers cannot process empty data message and so rely on precalculated hash. This patch series add precalculated hash in headers and make the drivers use them. Using those precalculated hash make some additionnal constify patch necessary. Regards -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html