[xen stable-4.15] libxl: Export libxl__qmp_ev_qemu_compare_version

[patchbot@xxxxxxx]

commit e949445ce9d8075ff6c784c31f59bac224c1d8e7
Author:     Anthony PERARD <anthony.perard@xxxxxxxxxx>
AuthorDate: Tue May 11 10:28:08 2021 +0100
Commit:     Ian Jackson <iwj@xxxxxxxxxxxxxx>
CommitDate: Thu Aug 19 17:18:12 2021 +0100

    libxl: Export libxl__qmp_ev_qemu_compare_version
    
    We are going to want to check QEMU's version in other places where we
    can use libxl__ev_qmp_send.
    
    Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    Reviewed-by: Jason Andryuk <jandryuk@xxxxxxxxx>
    
    Backport-requested-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>
---
 tools/libs/light/libxl_internal.h | 8 ++++++++
 tools/libs/light/libxl_qmp.c      | 4 ++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/libs/light/libxl_internal.h 
b/tools/libs/light/libxl_internal.h
index c6a4a187f5..c114f6d399 100644
--- a/tools/libs/light/libxl_internal.h
+++ b/tools/libs/light/libxl_internal.h
@@ -492,6 +492,14 @@ _hidden int libxl__ev_qmp_send(libxl__egc *egc, 
libxl__ev_qmp *ev,
                                const char *cmd, libxl__json_object *args);
 _hidden void libxl__ev_qmp_dispose(libxl__gc *gc, libxl__ev_qmp *ev);
 
+/* return values:
+ *   < 0  if qemu's version <  asked version
+ *   = 0  if qemu's version == asked version
+ *   > 0  if qemu's version >  asked version
+ */
+_hidden int libxl__qmp_ev_qemu_compare_version(libxl__ev_qmp *ev, int major,
+                                               int minor, int micro);
+
 typedef enum {
     /* initial state */
     qmp_state_disconnected = 1,
diff --git a/tools/libs/light/libxl_qmp.c b/tools/libs/light/libxl_qmp.c
index d0967c9f02..fb146a54cb 100644
--- a/tools/libs/light/libxl_qmp.c
+++ b/tools/libs/light/libxl_qmp.c
@@ -289,7 +289,7 @@ static int qmp_handle_response(libxl__gc *gc, 
libxl__qmp_handler *qmp,
  *   = 0  if qemu's version == asked version
  *   > 0  if qemu's version >  asked version
  */
-static int qmp_ev_qemu_compare_version(libxl__ev_qmp *ev, int major,
+int libxl__qmp_ev_qemu_compare_version(libxl__ev_qmp *ev, int major,
                                        int minor, int micro)
 {
     assert(ev->state == qmp_state_connected);
@@ -1073,7 +1073,7 @@ static void dm_state_save_to_fdset(libxl__egc *egc, 
libxl__ev_qmp *ev, int fdset
     /* The `live` parameter was added to QEMU 2.11. It signals QEMU that
      * the save operation is for a live migration rather than for taking a
      * snapshot. */
-    if (qmp_ev_qemu_compare_version(ev, 2, 11, 0) >= 0)
+    if (libxl__qmp_ev_qemu_compare_version(ev, 2, 11, 0) >= 0)
         libxl__qmp_param_add_bool(gc, &args, "live", dsps->live);
     QMP_PARAMETERS_SPRINTF(&args, "filename", "/dev/fdset/%d", fdset);
     rc = libxl__ev_qmp_send(egc, ev, "xen-save-devices-state", args);
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.15