Patch 17 is marked RFC because it has a prerequisite:
https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg01277.html
Patch 18 is marked RFC because it is probably worth discarding.
Otherwise, this series addresses the review comments on v6.

Also available as a tag at this location:
git fetch git://repo.or.cz/qemu/ericb.git qapi-cleanupv7a

and I plan forcefully update my branch with the rest of the v5
series at some point, located at:
http://repo.or.cz/qemu/ericb.git/shortlog/refs/heads/qapi

v7 notes:
The most churn compared to the last spin was questions over
commit messages and testsuite comments in 5/16, and to an
over-reaching commit 15/16 (now split, with patch 18 as the
half of the split that we will probably drop).  Patch 12 no
longer tries gnu-style label indentation.  Other patches
had minor tweaks to commit messages or fixing rebase issues.

More details in per-patch messages; and here's the backport diff:
001/18:[----] [--] 'qapi: Sort qapi-schema tests'
002/18:[----] [--] 'qapi: Improve 'include' error message'
003/18:[----] [--] 'qapi: Invoke exception superclass initializer'
004/18:[0004] [FC] 'qapi: Clean up qapi.py per pep8'
005/18:[0090] [FC] 'qapi: Test for various name collisions'
006/18:[0018] [FC] 'qapi: Avoid assertion failure on union 'type' collision'
007/18:[----] [-C] 'qapi: Add tests for empty unions'
008/18:[----] [--] 'qapi: Test use of 'number' within alternates'
009/18:[0008] [FC] 'qapi: Reuse code for flat union base validation'
010/18:[----] [--] 'qapi: Consistent generated code: prefer error 'err''
011/18:[----] [--] 'qapi: Consistent generated code: prefer visitor 'v''
012/18:[0026] [FC] 'qapi: Consistent generated code: prefer common labels'
013/18:[0004] [FC] 'qapi: Consistent generated code: prefer common indentation'
014/18:[----] [-C] 'qapi: Consistent generated code: minimize push_indent() 
usage'
015/18:[0074] [FC] 'qapi: Share gen_err_check()'
016/18:[----] [-C] 'qapi: Share gen_visit_fields()'
017/18:[down] 'qapi: Simplify gen_visit_fields() error handling'
018/18:[down] 'RFC: qapi: Use gen_err_check() in more places'

In v6:
https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg07208.html
This is patches 1-6 and 8-10 of my v5 series; patch 7 had enough
comments that I'm still reworking it and sank it later into that
series. It is 16 patches because I split several patches, and
added a couple more, in part because review on v5 let me discover
a place where we can crash the qapi code generator with an assert.

Addresses lots of review comments, mainly from Markus; see
individual patches for more details.

Subset B (and more?) will come later as Markus continues to
review either the rest of my v5 series, or as I get a chance
to post a rebased version of them.

In v5:
https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg05410.html
I _did_ rearrange patches to try and group related features:

1-2: Groundwork cleanups
3-5: Add more test cases
6-16: Front-end cleanups
17-18: Introspection output cleanups
19-20: 'alternate' type cleanups
21-29: qapi visitor cleanups
30-45: qapi-ify netdev_add
46: add qapi shorthand for flat unions

Lots of fixes based on additional testing, and rebased to
track other changes that happened in the meantime.  The series
is huge; I can split off smaller portions as requested.

In v4:
https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg02580.html
add some more clean up patches
rebase to Markus' recent work
pull in part of Zoltán's work to make netdev_add a flat union,
further enhancing it to be introspectible

I might be able to rearrange some of these patches, or separate
it into smaller independent series, if requested; but I'm
posting now to get review started.

In v3:
https://lists.gnu.org/archive/html/qemu-devel/2015-08/msg02059.html
redo cleanup of dealloc of partial struct
add patches to make all visit_type_*() avoid leaks on failure
add patches to allow boxed command arguments and events

In v2:
https://lists.gnu.org/archive/html/qemu-devel/2015-08/msg00900.html
rebase to Markus' v3 series
rework how comments are emitted for fields inherited from base
additional patches added for deleting colliding 'void *data'
documentation updates to match code changes

v1 was here:
https://lists.gnu.org/archive/html/qemu-devel/2015-07/msg05266.html
https://lists.gnu.org/archive/html/qemu-devel/2015-07/msg05325.html

Eric Blake (18):
  qapi: Sort qapi-schema tests
  qapi: Improve 'include' error message
  qapi: Invoke exception superclass initializer
  qapi: Clean up qapi.py per pep8
  qapi: Test for various name collisions
  qapi: Avoid assertion failure on union 'type' collision
  qapi: Add tests for empty unions
  qapi: Test use of 'number' within alternates
  qapi: Reuse code for flat union base validation
  qapi: Consistent generated code: prefer error 'err'
  qapi: Consistent generated code: prefer visitor 'v'
  qapi: Consistent generated code: prefer common labels
  qapi: Consistent generated code: prefer common indentation
  qapi: Consistent generated code: minimize push_indent() usage
  qapi: Share gen_err_check()
  qapi: Share gen_visit_fields()
  qapi: Simplify gen_visit_fields() error handling
  qapi: Use gen_err_check() in more places

 docs/qapi-code-gen.txt                             | 102 ++++-----
 qom/object.c                                       |  18 +-
 qom/qom-qobject.c                                  |  18 +-
 scripts/ordereddict.py                             |   3 +-
 scripts/qapi-commands.py                           | 120 ++++-------
 scripts/qapi-event.py                              |  54 +----
 scripts/qapi-types.py                              |   8 +-
 scripts/qapi-visit.py                              | 174 +++++++--------
 scripts/qapi.py                                    | 237 +++++++++++++++------
 tests/Makefile                                     | 171 +++++++++++----
 tests/qapi-schema/alternate-clash.err              |   2 +-
 tests/qapi-schema/alternate-clash.json             |   9 +-
 ...-union-branch-clash.out => alternate-empty.err} |   0
 tests/qapi-schema/alternate-empty.exit             |   1 +
 tests/qapi-schema/alternate-empty.json             |   2 +
 tests/qapi-schema/alternate-empty.out              |   4 +
 tests/qapi-schema/alternate-nested.json            |   2 +-
 tests/qapi-schema/alternate-unknown.json           |   2 +-
 tests/qapi-schema/args-name-clash.err              |   0
 tests/qapi-schema/args-name-clash.exit             |   1 +
 tests/qapi-schema/args-name-clash.json             |   5 +
 tests/qapi-schema/args-name-clash.out              |   6 +
 tests/qapi-schema/duplicate-key.err                |   2 +-
 tests/qapi-schema/duplicate-key.json               |   1 +
 tests/qapi-schema/flat-union-bad-base.err          |   2 +-
 tests/qapi-schema/flat-union-base-any.err          |   2 +-
 tests/qapi-schema/flat-union-base-union.err        |   2 +-
 tests/qapi-schema/flat-union-base-union.json       |   5 +-
 tests/qapi-schema/flat-union-branch-clash.err      |   1 -
 tests/qapi-schema/flat-union-clash-branch.err      |   0
 tests/qapi-schema/flat-union-clash-branch.exit     |   1 +
 tests/qapi-schema/flat-union-clash-branch.json     |  18 ++
 tests/qapi-schema/flat-union-clash-branch.out      |  14 ++
 tests/qapi-schema/flat-union-clash-member.err      |   1 +
 ...nch-clash.exit => flat-union-clash-member.exit} |   0
 ...nch-clash.json => flat-union-clash-member.json} |   2 +-
 tests/qapi-schema/flat-union-clash-member.out      |   0
 tests/qapi-schema/flat-union-clash-type.err        |   1 +
 tests/qapi-schema/flat-union-clash-type.exit       |   1 +
 tests/qapi-schema/flat-union-clash-type.json       |  14 ++
 tests/qapi-schema/flat-union-clash-type.out        |   0
 tests/qapi-schema/flat-union-cycle.err             |   1 +
 tests/qapi-schema/flat-union-cycle.exit            |   1 +
 tests/qapi-schema/flat-union-cycle.json            |   8 +
 tests/qapi-schema/flat-union-cycle.out             |   0
 tests/qapi-schema/flat-union-empty.err             |   0
 tests/qapi-schema/flat-union-empty.exit            |   1 +
 tests/qapi-schema/flat-union-empty.json            |   4 +
 tests/qapi-schema/flat-union-empty.out             |   7 +
 tests/qapi-schema/flat-union-inline.err            |   2 +-
 tests/qapi-schema/flat-union-inline.json           |   4 +-
 tests/qapi-schema/flat-union-no-base.err           |   2 +-
 tests/qapi-schema/include-non-file.err             |   2 +-
 tests/qapi-schema/include-non-file.json            |   2 +-
 tests/qapi-schema/qapi-schema-test.json            |  15 +-
 tests/qapi-schema/qapi-schema-test.out             |  26 +++
 tests/qapi-schema/struct-base-clash-base.err       |   0
 tests/qapi-schema/struct-base-clash-base.exit      |   1 +
 tests/qapi-schema/struct-base-clash-base.json      |   9 +
 tests/qapi-schema/struct-base-clash-base.out       |   5 +
 tests/qapi-schema/struct-base-clash-deep.err       |   2 +-
 tests/qapi-schema/struct-base-clash-deep.json      |   5 +-
 tests/qapi-schema/struct-base-clash.err            |   2 +-
 tests/qapi-schema/struct-base-clash.json           |   3 +-
 tests/qapi-schema/union-clash-branches.err         |   1 +
 tests/qapi-schema/union-clash-branches.exit        |   1 +
 tests/qapi-schema/union-clash-branches.json        |   5 +
 tests/qapi-schema/union-clash-branches.out         |   0
 tests/qapi-schema/union-clash-data.err             |   0
 tests/qapi-schema/union-clash-data.exit            |   1 +
 tests/qapi-schema/union-clash-data.json            |   7 +
 tests/qapi-schema/union-clash-data.out             |   6 +
 tests/qapi-schema/union-clash-type.err             |   1 +
 tests/qapi-schema/union-clash-type.exit            |   1 +
 tests/qapi-schema/union-clash-type.json            |   8 +
 tests/qapi-schema/union-clash-type.out             |   0
 tests/qapi-schema/union-empty.err                  |   0
 tests/qapi-schema/union-empty.exit                 |   1 +
 tests/qapi-schema/union-empty.json                 |   2 +
 tests/qapi-schema/union-empty.out                  |   3 +
 tests/qapi-schema/union-invalid-base.err           |   2 +-
 tests/test-qmp-input-visitor.c                     | 129 ++++++++++-
 82 files changed, 837 insertions(+), 439 deletions(-)
 rename tests/qapi-schema/{flat-union-branch-clash.out => alternate-empty.err} 
(100%)
 create mode 100644 tests/qapi-schema/alternate-empty.exit
 create mode 100644 tests/qapi-schema/alternate-empty.json
 create mode 100644 tests/qapi-schema/alternate-empty.out
 create mode 100644 tests/qapi-schema/args-name-clash.err
 create mode 100644 tests/qapi-schema/args-name-clash.exit
 create mode 100644 tests/qapi-schema/args-name-clash.json
 create mode 100644 tests/qapi-schema/args-name-clash.out
 delete mode 100644 tests/qapi-schema/flat-union-branch-clash.err
 create mode 100644 tests/qapi-schema/flat-union-clash-branch.err
 create mode 100644 tests/qapi-schema/flat-union-clash-branch.exit
 create mode 100644 tests/qapi-schema/flat-union-clash-branch.json
 create mode 100644 tests/qapi-schema/flat-union-clash-branch.out
 create mode 100644 tests/qapi-schema/flat-union-clash-member.err
 rename tests/qapi-schema/{flat-union-branch-clash.exit => 
flat-union-clash-member.exit} (100%)
 rename tests/qapi-schema/{flat-union-branch-clash.json => 
flat-union-clash-member.json} (85%)
 create mode 100644 tests/qapi-schema/flat-union-clash-member.out
 create mode 100644 tests/qapi-schema/flat-union-clash-type.err
 create mode 100644 tests/qapi-schema/flat-union-clash-type.exit
 create mode 100644 tests/qapi-schema/flat-union-clash-type.json
 create mode 100644 tests/qapi-schema/flat-union-clash-type.out
 create mode 100644 tests/qapi-schema/flat-union-cycle.err
 create mode 100644 tests/qapi-schema/flat-union-cycle.exit
 create mode 100644 tests/qapi-schema/flat-union-cycle.json
 create mode 100644 tests/qapi-schema/flat-union-cycle.out
 create mode 100644 tests/qapi-schema/flat-union-empty.err
 create mode 100644 tests/qapi-schema/flat-union-empty.exit
 create mode 100644 tests/qapi-schema/flat-union-empty.json
 create mode 100644 tests/qapi-schema/flat-union-empty.out
 create mode 100644 tests/qapi-schema/struct-base-clash-base.err
 create mode 100644 tests/qapi-schema/struct-base-clash-base.exit
 create mode 100644 tests/qapi-schema/struct-base-clash-base.json
 create mode 100644 tests/qapi-schema/struct-base-clash-base.out
 create mode 100644 tests/qapi-schema/union-clash-branches.err
 create mode 100644 tests/qapi-schema/union-clash-branches.exit
 create mode 100644 tests/qapi-schema/union-clash-branches.json
 create mode 100644 tests/qapi-schema/union-clash-branches.out
 create mode 100644 tests/qapi-schema/union-clash-data.err
 create mode 100644 tests/qapi-schema/union-clash-data.exit
 create mode 100644 tests/qapi-schema/union-clash-data.json
 create mode 100644 tests/qapi-schema/union-clash-data.out
 create mode 100644 tests/qapi-schema/union-clash-type.err
 create mode 100644 tests/qapi-schema/union-clash-type.exit
 create mode 100644 tests/qapi-schema/union-clash-type.json
 create mode 100644 tests/qapi-schema/union-clash-type.out
 create mode 100644 tests/qapi-schema/union-empty.err
 create mode 100644 tests/qapi-schema/union-empty.exit
 create mode 100644 tests/qapi-schema/union-empty.json
 create mode 100644 tests/qapi-schema/union-empty.out

-- 
2.4.3


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