Hi Kim, >> + /* figure how many gd is needed */ >> + if (aad_len) { >> + num_gd = get_sg_count(assoc, aad_len) + >> + get_sg_count(src, datalen); > this is dead code - aad_len is never non-zero - is there some code > missing from crypto4xx_alg.c? Also, IIRC, assoc is a superset of src, > so I believe something like num_gd = get_sg_count(assoc, aad_len + > datalen) would work better - this should also permit removal of the > nbytes reached check in [1] in get_sg_count. For the get num_gd, assoc and src are two different scatter_lists. One for the packet and one for the aad, so, it makes more sense to me to count them seperately. Yes? The way to driver pass aad and aad_len is from crypto4xx_build_pd. This aad support will be used in the future. Do you want me to remover from the current release? The reason I have it in, is to avoid too much code change for the future release. Thanks James -- 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