From 49fd38bdaa96f093fcad3176a781a4d0de8f8602 Mon Sep 17 00:00:00 2001 From: Stefan Weinhuber Date: Thu, 21 Aug 2008 19:46:38 +0200 Subject: [PATCH] [S390] dasd: fix data size for PSF/PRSSD command The Perform Subsystem Function/Prepare for Read Subsystem Data command requires 12 bytes of parameter data, but the respective data structure dasd_psf_prssd_data has a length of 16 bytes. Current storage servers ignore the obsolete bytes, but older models fail to execute the command and report an incorrect length error. This causes the device initilization for these devices to fail. To fix this problem we need to correct the dasd_psf_prssd_data structure and shorten it to the correct length. Reported-by: Ivan Warren Reviewed-by: Ivan Warren Tested-by: Ivan Warren CC: stable Signed-off-by: Stefan Weinhuber --- drivers/s390/block/dasd_eckd.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index 4bf0aa5112c1..2476f87d21d0 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -308,7 +308,7 @@ struct dasd_psf_prssd_data { unsigned char flags; unsigned char reserved[4]; unsigned char suborder; - unsigned char varies[9]; + unsigned char varies[5]; } __attribute__ ((packed)); /* -- 2.20.1