migration: Don't return for postcopy_chunk_hostpages()

It always return zero, because it just can't go wrong so far.  Simplify the
code with no functional change.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>

diff --git a/migration/ram.c b/migration/ram.c
index 9a06ea6dd40d1ede3c7cabacedd307a7f3810190..c60cf5ad83a4d3e01c46c556121eb8808065636f 100644 (file)
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -2566,12 +2566,10 @@ static void postcopy_chunk_hostpages_pass(MigrationState *ms, RAMBlock *block)
  * dirty host-page size chunks as all dirty.  In this case the host-page
  * is the host-page for the particular RAMBlock, i.e. it might be a huge page
  *
- * Returns zero on success
- *
  * @ms: current migration state
  * @block: block we want to work with
  */
-static int postcopy_chunk_hostpages(MigrationState *ms, RAMBlock *block)
+static void postcopy_chunk_hostpages(MigrationState *ms, RAMBlock *block)
 {
     postcopy_discard_send_init(ms, block->idstr);
 
@@ -2581,7 +2579,6 @@ static int postcopy_chunk_hostpages(MigrationState *ms, RAMBlock *block)
     postcopy_chunk_hostpages_pass(ms, block);
 
     postcopy_discard_send_finish(ms);
-    return 0;
 }
 
 /**
@@ -2603,7 +2600,6 @@ int ram_postcopy_send_discard_bitmap(MigrationState *ms)
 {
     RAMState *rs = ram_state;
     RAMBlock *block;
-    int ret;
 
     RCU_READ_LOCK_GUARD();
 
@@ -2617,10 +2613,7 @@ int ram_postcopy_send_discard_bitmap(MigrationState *ms)
 
     RAMBLOCK_FOREACH_NOT_IGNORED(block) {
         /* Deal with TPS != HPS and huge pages */
-        ret = postcopy_chunk_hostpages(ms, block);
-        if (ret) {
-            return ret;
-        }
+        postcopy_chunk_hostpages(ms, block);
     }
     trace_ram_postcopy_send_discard_bitmap();