3.2.79-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: Stefan Haberland <[email protected]> commit 020bf042e5b397479c1174081b935d0ff15d1a64 upstream. The channel checks the specified length and the provided amount of data for CCWs and provides an incorrect length error if the size does not match. Under z/VM with simulation activated the length may get changed. Having the suppress length indication bit set is stated as good CCW coding practice and avoids errors under z/VM. Signed-off-by: Stefan Haberland <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> --- drivers/s390/block/dasd_alias.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/s390/block/dasd_alias.c +++ b/drivers/s390/block/dasd_alias.c @@ -749,7 +749,7 @@ static int reset_summary_unit_check(stru ASCEBC((char *) &cqr->magic, 4); ccw = cqr->cpaddr; ccw->cmd_code = DASD_ECKD_CCW_RSCK; - ccw->flags = 0 ; + ccw->flags = CCW_FLAG_SLI; ccw->count = 16; ccw->cda = (__u32)(addr_t) cqr->data; ((char *)cqr->data)[0] = reason;
