From: Thomas Huth <thuth@xxxxxxxxxx>
It has been unmaintained since years, and there were only trivial or
tree-wide changes to the related files since many years, so the
code is likely very bitrotten and broken. For example the following
segfaults as soon as as you press a key:
qemu-system-x86_64 -usb -device usb-bt-dongle -bt hci -bt device:keyboard
Since we are not aware of anybody using bluetooth with the current
version of QEMU, let's mark the subsystem as deprecated, with a special
request for the users to write to the qemu-devel mailing list in case
they still use it (so we could revert the deprecation status in that
case).
Signed-off-by: Thomas Huth <thuth@xxxxxxxxxx>
Message-id: 1542016830-19189-1-git-send-email-thuth@xxxxxxxxxx
Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
---
vl.c | 4 ++++
qemu-deprecated.texi | 7 +++++++
qemu-options.hx | 4 ++++
3 files changed, 15 insertions(+)
diff --git a/vl.c b/vl.c
index 55bab005b6..fa25d1ae2d 100644
--- a/vl.c
+++ b/vl.c
@@ -3269,6 +3269,10 @@ int main(int argc, char **argv, char **envp)
break;
#endif
case QEMU_OPTION_bt:
+ warn_report("The bluetooth subsystem is deprecated and will "
+ "be removed soon. If the bluetooth subsystem is "
+ "still useful for you, please send a mail to "
+ "qemu-devel@xxxxxxxxxx with your usecase.");
add_device_config(DEV_BT, optarg);
break;
case QEMU_OPTION_audio_help:
diff --git a/qemu-deprecated.texi b/qemu-deprecated.texi
index 5d2d7a3588..cb4291f1e5 100644
--- a/qemu-deprecated.texi
+++ b/qemu-deprecated.texi
@@ -128,6 +128,13 @@ The @option{[hub_id name]} parameter tuple of the 'hostfwd_add' and
The ``ivshmem'' device type is replaced by either the ``ivshmem-plain''
or ``ivshmem-doorbell`` device types.
+@subsection bluetooth (since 3.1)
+
+The bluetooth subsystem is unmaintained since many years and likely bitrotten
+quite a bit. It will be removed without replacement unless some users speaks
+up at the @email{qemu-devel@@nongnu.org} mailing list with information about
+their usecases.
+
@section System emulator machines
@subsection pc-0.10 and pc-0.11 (since 3.0)
diff --git a/qemu-options.hx b/qemu-options.hx
index 38c7a978c1..ee379b32e3 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -2772,6 +2772,10 @@ logic. The Transport Layer is decided by the machine type. Currently
the machines @code{n800} and @code{n810} have one HCI and all other
machines have none.
+Note: This option and the whole bluetooth subsystem is considered as deprecated.
+If you still use it, please send a mail to @email{qemu-devel@@nongnu.org} where
+you describe your usecase.
+
@anchor{bt-hcis}
The following three types are recognized:
--
2.9.3
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