[Qemu-stable] [PATCH 41/56] qapi: Rename ChardevBackend member "memory" to "ringbuf"

[Michael Roth]

From: Markus Armbruster <address@hidden>

Commit 1da48c6 called the new member "memory" after commit 3949e59
standardized "ringbuf".  Rename for consistency.

However, member name "memory" is visible in QMP since 1.5.  It's
undocumented just like the driver name.  Keep it working anyway.

Cc: address@hidden
Signed-off-by: Markus Armbruster <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Message-id: address@hidden
Signed-off-by: Anthony Liguori <address@hidden>
(cherry picked from commit 3a1da42eb35a67d0dbc899dd571ea386fa11c4dd)

Signed-off-by: Michael Roth <address@hidden>
---
 qapi-schema.json |    6 ++++--
 qemu-char.c      |   11 ++++++-----
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/qapi-schema.json b/qapi-schema.json
index 9302e7d..1c8503a 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -3288,9 +3288,9 @@
 ##
 # @ChardevRingbuf:
 #
-# Configuration info for memory chardevs
+# Configuration info for ring buffer chardevs.
 #
-# @size: #optional Ringbuffer size, must be power of two, default is 65536
+# @size: #optional ring buffer size, must be power of two, default is 65536
 #
 # Since: 1.5
 ##
@@ -3321,6 +3321,8 @@
                                        'spicevmc' : 'ChardevSpiceChannel',
                                        'spiceport' : 'ChardevSpicePort',
                                        'vc'     : 'ChardevVC',
+                                       'ringbuf': 'ChardevRingbuf',
+                                       # next one is just for compatibility
                                        'memory' : 'ChardevRingbuf' } }
 
 ##
diff --git a/qemu-char.c b/qemu-char.c
index c6c4c6b..c16aea1 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -3115,12 +3115,12 @@ static void qemu_chr_parse_ringbuf(QemuOpts *opts, 
ChardevBackend *backend,
 {
     int val;
 
-    backend->memory = g_new0(ChardevRingbuf, 1);
+    backend->ringbuf = g_new0(ChardevRingbuf, 1);
 
     val = qemu_opt_get_number(opts, "size", 0);
     if (val != 0) {
-        backend->memory->has_size = true;
-        backend->memory->size = val;
+        backend->ringbuf->has_size = true;
+        backend->ringbuf->size = val;
     }
 }
 
@@ -3713,8 +3713,9 @@ ChardevReturn *qmp_chardev_add(const char *id, 
ChardevBackend *backend,
     case CHARDEV_BACKEND_KIND_VC:
         chr = vc_init(backend->vc);
         break;
+    case CHARDEV_BACKEND_KIND_RINGBUF:
     case CHARDEV_BACKEND_KIND_MEMORY:
-        chr = qemu_chr_open_ringbuf(backend->memory, errp);
+        chr = qemu_chr_open_ringbuf(backend->ringbuf, errp);
         break;
     default:
         error_setg(errp, "unknown chardev backend (%d)", backend->kind);
@@ -3764,7 +3765,7 @@ static void register_types(void)
     register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
     register_char_driver("socket", qemu_chr_open_socket);
     register_char_driver("udp", qemu_chr_open_udp);
-    register_char_driver_qapi("ringbuf", CHARDEV_BACKEND_KIND_MEMORY,
+    register_char_driver_qapi("ringbuf", CHARDEV_BACKEND_KIND_RINGBUF,
                               qemu_chr_parse_ringbuf);
     register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
                               qemu_chr_parse_file_out);
-- 
1.7.9.5