qemu-file: Remove QEMUFileHooks

The only user was rdma, and its use is gone.

Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231011203527.9061-8-quintela@redhat.com>

migration/qemu-file.c

@@ -38,7 +38,6 @@
 #define MAX_IOV_SIZE MIN_CONST(IOV_MAX, 64)
 
 struct QEMUFile {
-    const QEMUFileHooks *hooks;
     QIOChannel *ioc;
     bool is_writable;
 
@@ -133,11 +132,6 @@ QEMUFile *qemu_file_new_input(QIOChannel *ioc)
     return qemu_file_new_impl(ioc, false);
 }
 
-void qemu_file_set_hooks(QEMUFile *f, const QEMUFileHooks *hooks)
-{
-    f->hooks = hooks;
-}
-
 /*
  * Get last error for stream f with optional Error*
  *

migration/qemu-file.h

@@ -36,12 +36,8 @@
 #define RAM_CONTROL_ROUND     1
 #define RAM_CONTROL_FINISH    3
 
-typedef struct QEMUFileHooks {
-} QEMUFileHooks;
-
 QEMUFile *qemu_file_new_input(QIOChannel *ioc);
 QEMUFile *qemu_file_new_output(QIOChannel *ioc);
-void qemu_file_set_hooks(QEMUFile *f, const QEMUFileHooks *hooks);
 int qemu_fclose(QEMUFile *f);
 
 /*

migration/rdma.c

@@ -4003,13 +4003,6 @@ int qemu_rdma_registration_stop(QEMUFile *f, uint64_t flags)
     return -1;
 }
 
-static const QEMUFileHooks rdma_read_hooks = {
-};
-
-static const QEMUFileHooks rdma_write_hooks = {
-};
-
-
 static void qio_channel_rdma_finalize(Object *obj)
 {
     QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(obj);
@@ -4061,7 +4054,6 @@ static QEMUFile *rdma_new_input(RDMAContext *rdma)
     rioc->file = qemu_file_new_input(QIO_CHANNEL(rioc));
     rioc->rdmain = rdma;
     rioc->rdmaout = rdma->return_path;
-    qemu_file_set_hooks(rioc->file, &rdma_read_hooks);
 
     return rioc->file;
 }
@@ -4073,7 +4065,6 @@ static QEMUFile *rdma_new_output(RDMAContext *rdma)
     rioc->file = qemu_file_new_output(QIO_CHANNEL(rioc));
     rioc->rdmaout = rdma;
     rioc->rdmain = rdma->return_path;
-    qemu_file_set_hooks(rioc->file, &rdma_write_hooks);
 
     return rioc->file;
 }