Hi Jens, please see the following two patches that fix and improve the DASD DIAG driver. Regards, Stefan Gustavo A. R. Silva (1): s390/dasd: Use struct_size() helper Stefan Haberland (1): s390/dasd: fix inability to use DASD with DIAG driver drivers/s390/block/dasd_diag.c | 33 ++++++++++++++++++++------------- 1 file changed, 20 insertions(+), 13 deletions(-) -- 2.17.1