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[Qemu-devel] [PULL 5/6] vl: Deprecate -virtfs_synth

From: Greg Kurz
Subject: [Qemu-devel] [PULL 5/6] vl: Deprecate -virtfs_synth
Date: Fri, 17 May 2019 20:32:39 +0200

The synth fsdriver never got used for anything else but the QTest
testcase for VirtIO 9P. And even there, QTest uses -fsdev synth and
-device virtio-9p-... directly.

Signed-off-by: Greg Kurz <address@hidden>
Reviewed-by: Thomas Huth <address@hidden>
 qemu-deprecated.texi | 5 +++++
 qemu-options.hx      | 3 ++-
 vl.c                 | 4 ++++
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/qemu-deprecated.texi b/qemu-deprecated.texi
index 842e71b11dcc..1a821b68f435 100644
--- a/qemu-deprecated.texi
+++ b/qemu-deprecated.texi
@@ -72,6 +72,11 @@ backend settings instead of environment variables.  To ease 
migration to
 the new format, the ``-audiodev-help'' option can be used to convert
 the current values of the environment variables to ``-audiodev'' options.
address@hidden -virtfs_synth (since 4.1)
+The ``-virtfs_synth'' argument is now deprecated. Please use ``-fsdev synth''
+and ``-device virtio-9p-...'' instead.
 @section QEMU Machine Protocol (QMP) commands
 @subsection block-dirty-bitmap-add "autoload" parameter (since 2.12.0)
diff --git a/qemu-options.hx b/qemu-options.hx
index 3faa93592991..e54c56593b25 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -1368,7 +1368,8 @@ DEF("virtfs_synth", 0, QEMU_OPTION_virtfs_synth,
 @item -virtfs_synth
 @findex -virtfs_synth
-Create synthetic file system image
+Create synthetic file system image. Note that this option is now deprecated.
+Please use @code{-fsdev synth} and @code{-device virtio-9p-...} instead.
 DEF("iscsi", HAS_ARG, QEMU_OPTION_iscsi,
diff --git a/vl.c b/vl.c
index b6709514c1bb..8456f006edbd 100644
--- a/vl.c
+++ b/vl.c
@@ -3535,6 +3535,10 @@ int main(int argc, char **argv, char **envp)
                 QemuOpts *fsdev;
                 QemuOpts *device;
+                warn_report("'-virtfs_synth' is deprecated, please use "
+                             "'-fsdev synth' and '-device virtio-9p-...' "
+                            "instead");
                 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
                                          1, NULL);
                 if (!fsdev) {

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