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From: Akinobu Mita <akinobu.mita@gmail.com>
To: linux-scsi@vger.kernel.org
Cc: Akinobu Mita <akinobu.mita@gmail.com>,
	"James E.J. Bottomley" <JBottomley@parallels.com>,
	Douglas Gilbert <dgilbert@interlog.com>
Subject: [PATCH 1/4] scsi_debug: fix endianness bug in sdebug_build_parts()
Date: Mon, 15 Jul 2013 20:52:04 +0900	[thread overview]
Message-ID: <1373889127-17083-2-git-send-email-akinobu.mita@gmail.com> (raw)
In-Reply-To: <1373889127-17083-1-git-send-email-akinobu.mita@gmail.com>

With module parameter num_parts > 0, partition table is built on the
ramdisk storage when loading the driver.  Unfortunately, there is an
endianness bug in sdebug_build_parts().  So the partition table is not
correctly initialized on big-endian systems.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Douglas Gilbert <dgilbert@interlog.com>
Cc: linux-scsi@vger.kernel.org
---
 drivers/scsi/scsi_debug.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index cb4fefa..2f39b13 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -2659,8 +2659,8 @@ static void __init sdebug_build_parts(unsigned char *ramp,
 			       / sdebug_sectors_per;
 		pp->end_sector = (end_sec % sdebug_sectors_per) + 1;
 
-		pp->start_sect = start_sec;
-		pp->nr_sects = end_sec - start_sec + 1;
+		pp->start_sect = cpu_to_le32(start_sec);
+		pp->nr_sects = cpu_to_le32(end_sec - start_sec + 1);
 		pp->sys_ind = 0x83;	/* plain Linux partition */
 	}
 }
-- 
1.8.3.1


  reply	other threads:[~2013-07-15 11:53 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-15 11:52 [PATCH 0/4] scsi_debug: fix bugs with certain module parameters Akinobu Mita
2013-07-15 11:52 ` Akinobu Mita [this message]
2013-07-25 17:10   ` [PATCH 1/4] scsi_debug: fix endianness bug in sdebug_build_parts() Martin Peschke
2013-07-25 20:16     ` Douglas Gilbert
2013-07-26 17:07     ` Akinobu Mita
2013-07-29 10:53       ` Martin Peschke
2013-07-15 11:52 ` [PATCH 2/4] scsi_debug: fix logical block provisioning support when unmap_alignment != 0 Akinobu Mita
2013-08-19 14:16   ` Akinobu Mita
2013-08-20 20:56     ` Douglas Gilbert
2013-08-21 13:58       ` Akinobu Mita
2013-08-22  1:29       ` Martin K. Petersen
2013-07-15 11:52 ` [PATCH 3/4] scsi_debug: fix WRITE_SAME with virtual_gb > 0 Akinobu Mita
2013-07-15 11:52 ` [PATCH 4/4] scsi_debug: fix out of range access by Get_LBA_status " Akinobu Mita

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