buffered_file: unfold migrate_fd_put_buffer

We only used it once, just remove the callback indirection
Signed-off-by: NJuan Quintela <quintela@redhat.com>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>

buffered_file.c

@@ -23,7 +23,6 @@
 
 typedef struct QEMUFileBuffered
 {
-    BufferedPutFunc *put_buffer;
     BufferedPutReadyFunc *put_ready;
     BufferedWaitForUnfreezeFunc *wait_for_unfreeze;
     BufferedCloseFunc *close;
@@ -78,8 +77,8 @@ static void buffered_flush(QEMUFileBuffered *s)
     while (s->bytes_xfer < s->xfer_limit && offset < s->buffer_size) {
         ssize_t ret;
 
-        ret = s->put_buffer(s->migration_state, s->buffer + offset,
-                            s->buffer_size - offset);
+        ret = migrate_fd_put_buffer(s->migration_state, s->buffer + offset,
+                                    s->buffer_size - offset);
         if (ret == -EAGAIN) {
             DPRINTF("backend not ready, freezing\n");
             s->freeze_output = 1;
@@ -228,7 +227,6 @@ static void buffered_rate_tick(void *opaque)
 
 QEMUFile *qemu_fopen_ops_buffered(MigrationState *migration_state,
                                   size_t bytes_per_sec,
-                                  BufferedPutFunc *put_buffer,
                                   BufferedPutReadyFunc *put_ready,
                                   BufferedWaitForUnfreezeFunc *wait_for_unfreeze,
                                   BufferedCloseFunc *close)
@@ -239,7 +237,6 @@ QEMUFile *qemu_fopen_ops_buffered(MigrationState *migration_state,
 
     s->migration_state = migration_state;
     s->xfer_limit = bytes_per_sec / 10;
-    s->put_buffer = put_buffer;
     s->put_ready = put_ready;
     s->wait_for_unfreeze = wait_for_unfreeze;
     s->close = close;

buffered_file.h

@@ -17,14 +17,12 @@
 #include "hw/hw.h"
 #include "migration.h"
 
-typedef ssize_t (BufferedPutFunc)(void *opaque, const void *data, size_t size);
 typedef void (BufferedPutReadyFunc)(void *opaque);
 typedef void (BufferedWaitForUnfreezeFunc)(void *opaque);
 typedef int (BufferedCloseFunc)(void *opaque);
 
 QEMUFile *qemu_fopen_ops_buffered(MigrationState *migration_state,
                                   size_t xfer_limit,
-                                  BufferedPutFunc *put_buffer,
                                   BufferedPutReadyFunc *put_ready,
                                   BufferedWaitForUnfreezeFunc *wait_for_unfreeze,
                                   BufferedCloseFunc *close);

migration.c

@@ -295,10 +295,9 @@ static void migrate_fd_put_notify(void *opaque)
     }
 }
 
-static ssize_t migrate_fd_put_buffer(void *opaque, const void *data,
-                                     size_t size)
+ssize_t migrate_fd_put_buffer(MigrationState *s, const void *data,
+                              size_t size)
 {
-    MigrationState *s = opaque;
     ssize_t ret;
 
     if (s->state != MIG_STATE_ACTIVE) {
@@ -436,7 +435,6 @@ void migrate_fd_connect(MigrationState *s)
     s->state = MIG_STATE_ACTIVE;
     s->file = qemu_fopen_ops_buffered(s,
                                       s->bandwidth_limit,
-                                      migrate_fd_put_buffer,
                                       migrate_fd_put_ready,
                                       migrate_fd_wait_for_unfreeze,
                                       migrate_fd_close);

migration.h

@@ -78,6 +78,9 @@ void migrate_fd_error(MigrationState *s);
 
 void migrate_fd_connect(MigrationState *s);
 
+ssize_t migrate_fd_put_buffer(MigrationState *s, const void *data,
+                              size_t size);
+
 void add_migration_state_change_notifier(Notifier *notify);
 void remove_migration_state_change_notifier(Notifier *notify);
 bool migration_is_active(MigrationState *);