[PATCH for-5.2 0/2] deprecate short-form boolean options

[Paolo Bonzini <pbonzini@redhat.com>]

QemuOpts lets you write boolean options in "short form"
where "abc" means "abc=on" and "noabc" means "abc=off".
This is confusing, since it is not done for the first
key=value pair but only if there is an implied key;
it can also be grossly misused, for example "-device
e1000,noid" will create a device with id equal to "off".

Unfortunately, this idiom has found wide use with
-chardev (think "server,nowait") and to a lesser extent
-spice.

Patch 2 in this series deprecates it for all other option
groups.  The first patch avoids emitting the warning
for the "help" option.

Paolo

Paolo Bonzini (2):
  qemu-option: move help handling to get_opt_name_value
  qemu-option: warn for short-form boolean options

 chardev/char.c             |  1 +
 docs/system/deprecated.rst |  7 +++++
 include/qemu/option.h      |  1 +
 tests/test-qemu-opts.c     |  1 +
 ui/spice-core.c            |  1 +
 util/qemu-option.c         | 55 +++++++++++++++++++++-----------------
 6 files changed, 42 insertions(+), 24 deletions(-)

-- 
2.26.2