nbd: drop unused nbd_receive_negotiate() aio_context argument

aio_context is always NULL, so drop it.

Suggested-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230830224802.493686-2-stefanha@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>

include/block/nbd.h

@@ -324,8 +324,7 @@ typedef struct NBDExportInfo {
     char **contexts;
 } NBDExportInfo;
 
-int nbd_receive_negotiate(AioContext *aio_context, QIOChannel *ioc,
-                          QCryptoTLSCreds *tlscreds,
+int nbd_receive_negotiate(QIOChannel *ioc, QCryptoTLSCreds *tlscreds,
                           const char *hostname, QIOChannel **outioc,
                           NBDExportInfo *info, Error **errp);
 void nbd_free_export_list(NBDExportInfo *info, int count);

nbd/client-connection.c

@@ -146,8 +146,7 @@ static int nbd_connect(QIOChannelSocket *sioc, SocketAddress *addr,
         return 0;
     }
 
-    ret = nbd_receive_negotiate(NULL, QIO_CHANNEL(sioc), tlscreds,
-                                tlshostname,
+    ret = nbd_receive_negotiate(QIO_CHANNEL(sioc), tlscreds, tlshostname,
                                 outioc, info, errp);
     if (ret < 0) {
         /*

nbd/client.c

@@ -1014,8 +1014,7 @@ static int nbd_negotiate_finish_oldstyle(QIOChannel *ioc, NBDExportInfo *info,
  * Returns: negative errno: failure talking to server
  *          0: server is connected
  */
-int nbd_receive_negotiate(AioContext *aio_context, QIOChannel *ioc,
-                          QCryptoTLSCreds *tlscreds,
+int nbd_receive_negotiate(QIOChannel *ioc, QCryptoTLSCreds *tlscreds,
                           const char *hostname, QIOChannel **outioc,
                           NBDExportInfo *info, Error **errp)
 {
@@ -1027,7 +1026,7 @@ int nbd_receive_negotiate(AioContext *aio_context, QIOChannel *ioc,
     assert(info->name && strlen(info->name) <= NBD_MAX_STRING_SIZE);
     trace_nbd_receive_negotiate_name(info->name);
 
-    result = nbd_start_negotiate(aio_context, ioc, tlscreds, hostname, outioc,
+    result = nbd_start_negotiate(NULL, ioc, tlscreds, hostname, outioc,
                                  info->structured_reply, &zeroes, errp);
     if (result < 0) {
         return result;

qemu-nbd.c

@@ -295,8 +295,8 @@ static void *nbd_client_thread(void *arg)
         goto out;
     }
 
-    if (nbd_receive_negotiate(NULL, QIO_CHANNEL(sioc),
-                              NULL, NULL, NULL, &info, &local_error) < 0) {
+    if (nbd_receive_negotiate(QIO_CHANNEL(sioc), NULL, NULL, NULL,
+                              &info, &local_error) < 0) {
         if (local_error) {
             error_report_err(local_error);
         }