libxc: xc_domain_restore, make toolstack_restore const-correct

Update the one provider of this callback, in libxl.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>

diff --git a/tools/libxc/xenguest.h b/tools/libxc/xenguest.h
index 91d53f74260109aa45d971527c446eeb3ba4936f..707e31cc5fddeca5da86cc6673b61210c16dff81 100644 (file)
--- a/tools/libxc/xenguest.h
+++ b/tools/libxc/xenguest.h
@@ -92,7 +92,7 @@ int xc_domain_save(xc_interface *xch, int io_fd, uint32_t dom, uint32_t max_iter
 /* callbacks provided by xc_domain_restore */
 struct restore_callbacks {
     /* callback to restore toolstack specific data */
-    int (*toolstack_restore)(uint32_t domid, uint8_t *buf,
+    int (*toolstack_restore)(uint32_t domid, const uint8_t *buf,
             uint32_t size, void* data);
 
     /* to be provided as the last argument to each callback function */

diff --git a/tools/libxl/libxl_dom.c b/tools/libxl/libxl_dom.c
index d88629fc18aa43869799189f746ab84b40d4010e..ce7a4441edf01182782409906e2bb3e6ef7f872d 100644 (file)
--- a/tools/libxl/libxl_dom.c
+++ b/tools/libxl/libxl_dom.c
@@ -469,13 +469,13 @@ static inline char *restore_helper(libxl__gc *gc, uint32_t domid,
             domid, phys_offset, node);
 }
 
-static int libxl__toolstack_restore(uint32_t domid, uint8_t *buf,
+static int libxl__toolstack_restore(uint32_t domid, const uint8_t *buf,
         uint32_t size, void *data)
 {
     libxl__gc *gc = (libxl__gc *) data;
     libxl_ctx *ctx = gc->owner;
     int i, ret;
-    uint8_t *ptr = buf;
+    const uint8_t *ptr = buf;
     uint32_t count = 0, version = 0;
     struct libxl__physmap_info* pi;
     char *xs_path;