[Qemu-devel] [PATCH 42/81] scsi-block: fix direction of BYTCHK test for VERIFY commands

[Michael Roth]

From: Paolo Bonzini <address@hidden>

The direction is wrong; scsi_block_is_passthrough returns
false for commands that *can* use sglists.

Reported-by: Zhang Qian <address@hidden>
Fixes: 8fdc7839e40f43a426bc7e858cf1dbfe315a3804
Cc: address@hidden
Signed-off-by: Paolo Bonzini <address@hidden>
(cherry picked from commit 1f8af0d186abf9ef775a74d41bf2852ed8d59b63)
Signed-off-by: Michael Roth <address@hidden>
---
 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