From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Mon, 26 Aug 2013 13:08:40 +0000 (+0900)
Subject: [SCSI] scsi_debug: fix endianness bug in sdebug_build_parts()
X-Git-Tag: firefly_0821_release~176^2~5295^2~52
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=150c3544b1d317fe32b1f279917c08638dad363f;p=firefly-linux-kernel-4.4.55.git

[SCSI] scsi_debug: fix endianness bug in sdebug_build_parts()

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>
Tested-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index cb4fefa1bfba..2f39b13c7130 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 */
 	}
 }