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authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>2017-07-07 18:29:10 +0300
committerEric Blake <eblake@redhat.com>2017-07-10 09:57:24 -0500
commit76ff081d91d215a4f91849653bdc2ebd8f657183 (patch)
tree670d672353b63c12dbc8f9c9fbe102deca135e50 /nbd/server.c
parent1e120ffead85d08d41160065e0d8cf86400b1c9e (diff)
downloadfocaccia-qemu-76ff081d91d215a4f91849653bdc2ebd8f657183.tar.gz
focaccia-qemu-76ff081d91d215a4f91849653bdc2ebd8f657183.zip
nbd/server: refactor nbd_negotiate
Combine two successive "if (oldStyle) {...} else {...}" into one.

Block "if (client->tlscreds)" under "if (oldStyle)" is unreachable,
as we have "oldStyle = client->exp != NULL && !client->tlscreds;".
So, delete this block.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20170707152918.23086-3-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'nbd/server.c')
-rw-r--r--nbd/server.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/nbd/server.c b/nbd/server.c
index 3963972337..a6a57ce7c1 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -584,21 +584,15 @@ static coroutine_fn int nbd_negotiate(NBDClient *client)
         stq_be_p(buf + 8, NBD_CLIENT_MAGIC);
         stq_be_p(buf + 16, client->exp->size);
         stw_be_p(buf + 26, client->exp->nbdflags | myflags);
-    } else {
-        stq_be_p(buf + 8, NBD_OPTS_MAGIC);
-        stw_be_p(buf + 16, NBD_FLAG_FIXED_NEWSTYLE | NBD_FLAG_NO_ZEROES);
-    }
 
-    if (oldStyle) {
-        if (client->tlscreds) {
-            TRACE("TLS cannot be enabled with oldstyle protocol");
-            return -EINVAL;
-        }
         if (nbd_write(client->ioc, buf, sizeof(buf), NULL) < 0) {
             LOG("write failed");
             return -EINVAL;
         }
     } else {
+        stq_be_p(buf + 8, NBD_OPTS_MAGIC);
+        stw_be_p(buf + 16, NBD_FLAG_FIXED_NEWSTYLE | NBD_FLAG_NO_ZEROES);
+
         if (nbd_write(client->ioc, buf, 18, NULL) < 0) {
             LOG("write failed");
             return -EINVAL;