qemu-iotests: Filter warnings about block migration being deprecated

Create a new filter that removes the two warnings for test 183.

Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231018115513.2163-2-quintela@redhat.com>

tests/qemu-iotests/183

@@ -90,7 +90,7 @@ echo
 reply="$(_send_qemu_cmd $src \
     "{ 'execute': 'migrate',
        'arguments': { 'uri': 'unix:${MIG_SOCKET}', 'blk': true } }" \
-    'return\|error')"
+    'return\|error' | _filter_migration_block_deprecated)"
 echo "$reply"
 if echo "$reply" | grep "compiled without old-style" > /dev/null; then
     _notrun "migrate -b support not compiled in"

tests/qemu-iotests/common.filter

@@ -359,5 +359,12 @@ _filter_qcow2_compression_type_bit()
         -e 's/\(incompatible_features.*\), 3\(,.*\)/\1\2/'
 }
 
+# filter warnings caused for block migration deprecation
+_filter_migration_block_deprecated()
+{
+    gsed -e '/warning: parameter .blk. is deprecated; use blockdev-mirror with NBD instead/d' \
+         -e '/warning: block migration is deprecated; use blockdev-mirror with NBD instead/d'
+}
+
 # make sure this script returns success
 true