From: Paolo Bonzini <pbonz...@redhat.com>
The direction is wrong; scsi_block_is_passthrough returns
false for commands that *can* use sglists.
Reported-by: Zhang Qian <zhangq...@sangfor.com.cn>
Fixes: 8fdc7839e40f43a426bc7e858cf1dbfe315a3804
Cc: qemu-sta...@nongnu.org
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
(cherry picked from commit 1f8af0d186abf9ef775a74d41bf2852ed8d59b63)
Signed-off-by: Michael Roth <mdr...@linux.vnet.ibm.com>
---
hw/scsi/scsi-disk.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index a963191..5796226 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -2694,7 +2694,7 @@ static bool scsi_block_is_passthrough(SCSIDiskState *s,
uint8_t *buf)
* for the number of logical blocks specified in the length
* field). For other modes, do not use scatter/gather operation.
*/
- if ((buf[1] & 6) != 2) {
+ if ((buf[1] & 6) == 2) {
return false;
}
break;
--
2.7.4
