Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc and misc cleanups and fixes, virtio optimizations

Included here:
Refactoring and bugfix patches in PC/ACPI.
New commands for ipmi.
Virtio optimizations.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Sat 06 Feb 2016 18:44:26 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream: (45 commits)
  net: set endianness on all backend devices
  fix MSI injection on Xen
  intel_iommu: large page support
  dimm: Correct type of MemoryHotplugState->base
  pc: set the OEM fields in the RSDT and the FADT from the SLIC
  acpi: add function to extract oem_id and oem_table_id from the user's SLIC
  acpi: expose oem_id and oem_table_id in build_rsdt()
  acpi: take oem_id in build_header(), optionally
  pc: Eliminate PcGuestInfo struct
  pc: Move APIC and NUMA data from PcGuestInfo to PCMachineState
  pc: Move PcGuestInfo.fw_cfg to PCMachineState
  pc: Remove PcGuestInfo.isapc_ram_fw field
  pc: Remove RAM size fields from PcGuestInfo
  pc: Remove compat fields from PcGuestInfo
  acpi: Don't save PcGuestInfo on AcpiBuildState
  acpi: Remove guest_info parameters from functions
  pc: Simplify xen_load_linux() signature
  pc: Simplify pc_memory_init() signature
  pc: Eliminate struct PcGuestInfoState
  pc: Move PcGuestInfo declaration to top of file
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 8 insertions, 7 deletions

diff --git a/hw/scsi/virtio-scsi-dataplane.c b/hw/scsi/virtio-scsi-dataplane.c
index c77b3a1058..8340326a50 100644
--- a/hw/scsi/virtio-scsi-dataplane.c
+++ b/hw/scsi/virtio-scsi-dataplane.c
@@ -81,15 +81,16 @@ fail_vring:
 VirtIOSCSIReq *virtio_scsi_pop_req_vring(VirtIOSCSI *s,
                                          VirtIOSCSIVring *vring)
 {
-    VirtIOSCSIReq *req = virtio_scsi_init_req(s, NULL);
-    int r;
+    VirtIOSCSICommon *vs = (VirtIOSCSICommon *)s;
+    VirtIOSCSIReq *req;
 
-    req->vring = vring;
-    r = vring_pop((VirtIODevice *)s, &vring->vring, &req->elem);
-    if (r < 0) {
-        virtio_scsi_free_req(req);
-        req = NULL;
+    req = vring_pop((VirtIODevice *)s, &vring->vring,
+                    sizeof(VirtIOSCSIReq) + vs->cdb_size);
+    if (!req) {
+        return NULL;
     }
+    virtio_scsi_init_req(s, NULL, req);
+    req->vring = vring;
     return req;
 }