[PATCH 00/13] Subject: [PATCH 00/15] qapi: Improve command response documentation

[PATCH 00/13] Subject: [PATCH 00/15] qapi: Improve command response documentation

[Markus Armbruster]

We use doc comment "Returns" sections both for success and error
response.  This series moves the latter to new "Errors" sections.
Enables some cleanup, visible in the diffstat.q

Markus Armbruster (13):
  qapi: Memorize since & returns sections
  qapi: Slightly clearer error message for invalid "Returns" section
  qapi: New documentation section tag "Errors"
  qapi: Move error documentation to new "Errors" sections
  qapi: Delete useless "Returns" sections
  qapi: Clean up "Returns" sections
  qapi/yank: Tweak @yank's error description for consistency
  qga/qapi-schema: Move error documentation to new "Errors" sections
  qga/qapi-schema: Delete useless "Returns" sections
  qga/qapi-schema: Clean up "Returns" sections
  qga/qapi-schema: Tweak documentation of fsfreeze commands
  qga/qapi-schema: Fix guest-set-memory-blocks documentation
  qapi: Reject "Returns" section when command doesn't return anything

 docs/devel/qapi-code-gen.rst               |  6 +-
 qapi/block-core.json                       | 74 ++++++++--------------
 qapi/block-export.json                     | 23 ++++---
 qapi/block.json                            | 10 ++-
 qapi/char.json                             |  6 --
 qapi/dump.json                             |  2 -
 qapi/machine-target.json                   | 37 ++++++-----
 qapi/machine.json                          | 19 ++----
 qapi/migration.json                        | 26 --------
 qapi/misc-target.json                      |  3 -
 qapi/misc.json                             | 25 +++-----
 qapi/net.json                              | 17 +++--
 qapi/qdev.json                             |  3 +-
 qapi/qom.json                              |  6 +-
 qapi/run-state.json                        |  5 +-
 qapi/tpm.json                              |  2 -
 qapi/transaction.json                      |  5 +-
 qapi/ui.json                               | 17 +----
 qapi/yank.json                             |  5 +-
 qga/qapi-schema.json                       | 72 +++++++++------------
 scripts/qapi/parser.py                     | 50 ++++++++++-----
 tests/qapi-schema/doc-good.json            |  2 +
 tests/qapi-schema/doc-good.out             |  2 +
 tests/qapi-schema/doc-good.txt             |  6 ++
 tests/qapi-schema/doc-invalid-return.err   |  2 +-
 tests/qapi-schema/doc-invalid-return2.err  |  1 +
 tests/qapi-schema/doc-invalid-return2.json |  7 ++
 tests/qapi-schema/doc-invalid-return2.out  |  0
 tests/qapi-schema/meson.build              |  1 +
 29 files changed, 189 insertions(+), 245 deletions(-)
 create mode 100644 tests/qapi-schema/doc-invalid-return2.err
 create mode 100644 tests/qapi-schema/doc-invalid-return2.json
 create mode 100644 tests/qapi-schema/doc-invalid-return2.out

-- 
2.43.0

[PATCH 01/13] qapi: Memorize since & returns sections

[Markus Armbruster]

This is chiefly to make code that looks up these sections easier to
read.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 scripts/qapi/parser.py | 31 +++++++++++++++++--------------
 1 file changed, 17 insertions(+), 14 deletions(-)

diff --git a/scripts/qapi/parser.py b/scripts/qapi/parser.py
index 11707418fb..bfc47cf3cb 100644
--- a/scripts/qapi/parser.py
+++ b/scripts/qapi/parser.py
@@ -639,6 +639,10 @@ def __init__(self, info: QAPISourceInfo, symbol: Optional[str] = None):
         # dicts mapping parameter/feature names to their description
         self.args: Dict[str, QAPIDoc.ArgSection] = {}
         self.features: Dict[str, QAPIDoc.ArgSection] = {}
+        # a command's "Returns" section
+        self.returns: Optional[QAPIDoc.Section] = None
+        # "Since" section
+        self.since: Optional[QAPIDoc.Section] = None
         # sections other than .body, .args, .features
         self.sections: List[QAPIDoc.Section] = []
 
@@ -660,14 +664,17 @@ def ensure_untagged_section(self, info: QAPISourceInfo) -> None:
         self.all_sections.append(section)
 
     def new_tagged_section(self, info: QAPISourceInfo, tag: str) -> None:
-        if tag in ('Returns', 'Since'):
-            for section in self.all_sections:
-                if isinstance(section, self.ArgSection):
-                    continue
-                if section.tag == tag:
-                    raise QAPISemError(
-                        info, "duplicated '%s' section" % tag)
         section = self.Section(info, tag)
+        if tag == 'Returns':
+            if self.returns:
+                raise QAPISemError(
+                    info, "duplicated '%s' section" % tag)
+            self.returns = section
+        elif tag == 'Since':
+            if self.since:
+                raise QAPISemError(
+                    info, "duplicated '%s' section" % tag)
+            self.since = section
         self.sections.append(section)
         self.all_sections.append(section)
 
@@ -708,13 +715,9 @@ def connect_feature(self, feature: 'QAPISchemaFeature') -> None:
         self.features[feature.name].connect(feature)
 
     def check_expr(self, expr: QAPIExpression) -> None:
-        if 'command' not in expr:
-            sec = next((sec for sec in self.sections
-                        if sec.tag == 'Returns'),
-                       None)
-            if sec:
-                raise QAPISemError(sec.info,
-                                   "'Returns:' is only valid for commands")
+        if self.returns and 'command' not in expr:
+            raise QAPISemError(self.returns.info,
+                               "'Returns:' is only valid for commands")
 
     def check(self) -> None:
 
-- 
2.43.0

[PATCH 02/13] qapi: Slightly clearer error message for invalid "Returns" section

[Markus Armbruster]

Change "'Returns:' is only valid for commands" to "'Returns' section
is only valid for commands".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 scripts/qapi/parser.py                   | 5 +++--
 tests/qapi-schema/doc-invalid-return.err | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/scripts/qapi/parser.py b/scripts/qapi/parser.py
index bfc47cf3cb..e4c2259e39 100644
--- a/scripts/qapi/parser.py
+++ b/scripts/qapi/parser.py
@@ -716,8 +716,9 @@ def connect_feature(self, feature: 'QAPISchemaFeature') -> None:
 
     def check_expr(self, expr: QAPIExpression) -> None:
         if self.returns and 'command' not in expr:
-            raise QAPISemError(self.returns.info,
-                               "'Returns:' is only valid for commands")
+            raise QAPISemError(
+                self.returns.info,
+                "'Returns' section is only valid for commands")
 
     def check(self) -> None:
 
diff --git a/tests/qapi-schema/doc-invalid-return.err b/tests/qapi-schema/doc-invalid-return.err
index 3d9e71c2b3..aafd57b135 100644
--- a/tests/qapi-schema/doc-invalid-return.err
+++ b/tests/qapi-schema/doc-invalid-return.err
@@ -1 +1 @@
-doc-invalid-return.json:6: 'Returns:' is only valid for commands
+doc-invalid-return.json:6: 'Returns' section is only valid for commands
-- 
2.43.0

[PATCH 03/13] qapi: New documentation section tag "Errors"

[Markus Armbruster]

We use section "Returns" for documenting both success and error
response of commands.

I intend to generate better command success response documentation.
Easier when "Returns" documents just he success response.

Create new section tag "Errors".  The next two commits will move error
response documentation from "Returns" sections to "Errors" sections.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 docs/devel/qapi-code-gen.rst    |  6 +++++-
 scripts/qapi/parser.py          | 23 +++++++++++++++++------
 tests/qapi-schema/doc-good.json |  2 ++
 tests/qapi-schema/doc-good.out  |  2 ++
 tests/qapi-schema/doc-good.txt  |  6 ++++++
 5 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/docs/devel/qapi-code-gen.rst b/docs/devel/qapi-code-gen.rst
index 6804a4b596..f453bd3546 100644
--- a/docs/devel/qapi-code-gen.rst
+++ b/docs/devel/qapi-code-gen.rst
@@ -996,7 +996,8 @@ line "Features:", like this::
 
 A tagged section begins with a paragraph that starts with one of the
 following words: "Note:"/"Notes:", "Since:", "Example:"/"Examples:",
-"Returns:", "TODO:".  It ends with the start of a new section.
+"Returns:", "Errors:", "TODO:".  It ends with the start of a new
+section.
 
 The second and subsequent lines of tagged sections must be indented
 like this::
@@ -1007,6 +1008,9 @@ like this::
  #     Duis aute irure dolor in reprehenderit in voluptate velit esse
  #     cillum dolore eu fugiat nulla pariatur.
 
+"Returns" and "Errors" sections are only valid for commands.  They
+document the success and the error response, respectively.
+
 A "Since: x.y.z" tagged section lists the release that introduced the
 definition.
 
diff --git a/scripts/qapi/parser.py b/scripts/qapi/parser.py
index e4c2259e39..a32b2c7e7f 100644
--- a/scripts/qapi/parser.py
+++ b/scripts/qapi/parser.py
@@ -543,7 +543,7 @@ def get_doc(self) -> 'QAPIDoc':
                         line = self.get_doc_indented(doc)
                     no_more_args = True
                 elif match := re.match(
-                        r'(Returns|Since|Notes?|Examples?|TODO): *',
+                        r'(Returns|Errors|Since|Notes?|Examples?|TODO): *',
                         line):
                     # tagged section
                     doc.new_tagged_section(self.info, match.group(1))
@@ -639,8 +639,9 @@ def __init__(self, info: QAPISourceInfo, symbol: Optional[str] = None):
         # dicts mapping parameter/feature names to their description
         self.args: Dict[str, QAPIDoc.ArgSection] = {}
         self.features: Dict[str, QAPIDoc.ArgSection] = {}
-        # a command's "Returns" section
+        # a command's "Returns" and "Errors" section
         self.returns: Optional[QAPIDoc.Section] = None
+        self.errors: Optional[QAPIDoc.Section] = None
         # "Since" section
         self.since: Optional[QAPIDoc.Section] = None
         # sections other than .body, .args, .features
@@ -670,6 +671,11 @@ def new_tagged_section(self, info: QAPISourceInfo, tag: str) -> None:
                 raise QAPISemError(
                     info, "duplicated '%s' section" % tag)
             self.returns = section
+        elif tag == 'Errors':
+            if self.errors:
+                raise QAPISemError(
+                    info, "duplicated '%s' section" % tag)
+            self.errors = section
         elif tag == 'Since':
             if self.since:
                 raise QAPISemError(
@@ -715,10 +721,15 @@ def connect_feature(self, feature: 'QAPISchemaFeature') -> None:
         self.features[feature.name].connect(feature)
 
     def check_expr(self, expr: QAPIExpression) -> None:
-        if self.returns and 'command' not in expr:
-            raise QAPISemError(
-                self.returns.info,
-                "'Returns' section is only valid for commands")
+        if 'command' not in expr:
+            if self.returns:
+                raise QAPISemError(
+                    self.returns.info,
+                    "'Returns' section is only valid for commands")
+            if self.errors:
+                raise QAPISemError(
+                    self.returns.info,
+                    "'Errors' section is only valid for commands")
 
     def check(self) -> None:
 
diff --git a/tests/qapi-schema/doc-good.json b/tests/qapi-schema/doc-good.json
index 5bb2b69071..de38a386e8 100644
--- a/tests/qapi-schema/doc-good.json
+++ b/tests/qapi-schema/doc-good.json
@@ -159,6 +159,8 @@
 #
 # Returns: @Object
 #
+# Errors: some
+#
 # TODO: frobnicate
 #
 # Notes:
diff --git a/tests/qapi-schema/doc-good.out b/tests/qapi-schema/doc-good.out
index 34ee74af4b..716a9a4102 100644
--- a/tests/qapi-schema/doc-good.out
+++ b/tests/qapi-schema/doc-good.out
@@ -173,6 +173,8 @@ another feature
 @arg3 is undocumented
     section=Returns
 @Object
+    section=Errors
+some
     section=TODO
 frobnicate
     section=Notes
diff --git a/tests/qapi-schema/doc-good.txt b/tests/qapi-schema/doc-good.txt
index 879f6ff50a..847db70412 100644
--- a/tests/qapi-schema/doc-good.txt
+++ b/tests/qapi-schema/doc-good.txt
@@ -206,6 +206,12 @@ Returns
 "Object"
 
 
+Errors
+~~~~~~
+
+some
+
+
 Notes
 ~~~~~
 
-- 
2.43.0

[PATCH 04/13] qapi: Move error documentation to new "Errors" sections

[Markus Armbruster]

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 qapi/block-core.json     | 44 ++++++++++++++++++++++++++++++++++++++++
 qapi/block-export.json   | 23 ++++++++++++---------
 qapi/block.json          |  8 ++++++--
 qapi/machine-target.json | 35 ++++++++++++++++++++------------
 qapi/machine.json        |  6 ++++++
 qapi/misc.json           | 10 +++++++--
 qapi/net.json            | 14 ++++++++++---
 qapi/qdev.json           |  2 ++
 qapi/qom.json            |  4 ++++
 qapi/transaction.json    |  3 ++-
 qapi/ui.json             |  6 ++++++
 qapi/yank.json           |  2 ++
 12 files changed, 126 insertions(+), 31 deletions(-)

diff --git a/qapi/block-core.json b/qapi/block-core.json
index 22b8634422..cea46b4668 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -1458,6 +1458,8 @@
 #
 # Returns:
 #     - nothing on success
+#
+# Errors:
 #     - If @device is not a valid block device, DeviceNotFound
 #
 # Since: 0.14
@@ -1676,6 +1678,8 @@
 #
 # Returns:
 #     - nothing on success
+#
+# Errors:
 #     - If @device is not a valid block device, DeviceNotFound
 #
 # Since: 0.14
@@ -1756,6 +1760,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If "device" does not exist or cannot be determined,
 #       DeviceNotFound
 #
@@ -1856,6 +1862,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If @device does not exist, DeviceNotFound
 #     - Any other error returns a GenericError.
 #
@@ -1896,6 +1904,8 @@
 #
 # Returns:
 #     - nothing on success
+#
+# Errors:
 #     - If @device is not a valid block device, GenericError
 #
 # Since: 1.6
@@ -1923,6 +1933,8 @@
 #
 # Returns:
 #     - nothing on success
+#
+# Errors:
 #     - If @device is not a valid block device, DeviceNotFound
 #
 # Since: 2.3
@@ -2129,6 +2141,8 @@
 #
 # Returns:
 #     - nothing on success
+#
+# Errors:
 #     - If @device is not a valid block device, GenericError
 #
 # Since: 1.3
@@ -2306,6 +2320,8 @@
 #
 # Returns:
 #     - nothing on success
+#
+# Errors:
 #     - If @node is not a valid block device or node, DeviceNotFound
 #     - If @name is already taken, GenericError with an explanation
 #
@@ -2330,6 +2346,8 @@
 #
 # Returns:
 #     - nothing on success
+#
+# Errors:
 #     - If @node is not a valid block device or node, DeviceNotFound
 #     - If @name is not found, GenericError with an explanation
 #     - if @name is frozen by an operation, GenericError
@@ -2355,6 +2373,8 @@
 #
 # Returns:
 #     - nothing on success
+#
+# Errors:
 #     - If @node is not a valid block device, DeviceNotFound
 #     - If @name is not found, GenericError with an explanation
 #
@@ -2377,6 +2397,8 @@
 #
 # Returns:
 #     - nothing on success
+#
+# Errors:
 #     - If @node is not a valid block device, DeviceNotFound
 #     - If @name is not found, GenericError with an explanation
 #
@@ -2399,6 +2421,8 @@
 #
 # Returns:
 #     - nothing on success
+#
+# Errors:
 #     - If @node is not a valid block device, DeviceNotFound
 #     - If @name is not found, GenericError with an explanation
 #
@@ -2429,6 +2453,8 @@
 #
 # Returns:
 #     - nothing on success
+#
+# Errors:
 #     - If @node is not a valid block device, DeviceNotFound
 #     - If any bitmap in @bitmaps or @target is not found,
 #       GenericError
@@ -2471,6 +2497,8 @@
 #
 # Returns:
 #     - BlockDirtyBitmapSha256 on success
+#
+# Errors:
 #     - If @node is not a valid block device, DeviceNotFound
 #     - If @name is not found or if hashing has failed, GenericError
 #       with an explanation
@@ -2868,6 +2896,8 @@
 #
 # Returns:
 #     - Nothing on success.
+#
+# Errors:
 #     - If @device does not exist, DeviceNotFound.
 #
 # Since: 1.1
@@ -2907,6 +2937,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
 #
@@ -2952,6 +2984,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
 #
@@ -2979,6 +3013,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
 #
@@ -3004,6 +3040,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
 #
@@ -3036,6 +3074,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
 #
@@ -6072,6 +6112,8 @@
 #
 # Returns:
 #     - nothing on success
+#
+# Errors:
 #     - If @device is not a valid block device, GenericError
 #     - If any snapshot matching @name exists, or @name is empty,
 #       GenericError
@@ -6109,6 +6151,8 @@
 #
 # Returns:
 #     - SnapshotInfo on success
+#
+# Errors:
 #     - If @device is not a valid block device, GenericError
 #     - If snapshot not found, GenericError
 #     - If the format of the image used does not support it,
diff --git a/qapi/block-export.json b/qapi/block-export.json
index d9bd376b48..3919a2d5b9 100644
--- a/qapi/block-export.json
+++ b/qapi/block-export.json
@@ -65,7 +65,8 @@
 #     server from advertising multiple client support (since 5.2;
 #     default: 0).
 #
-# Returns: error if the server is already running.
+# Errors:
+#     - if the server is already running
 #
 # Since: 1.3
 ##
@@ -247,8 +248,9 @@
 # @deprecated: This command is deprecated.  Use @block-export-add
 #     instead.
 #
-# Returns: error if the server is not running, or export with the same
-#     name already exists.
+# Errors:
+#     - if the server is not running
+#     - if an export with the same name already exists
 #
 # Since: 1.3
 ##
@@ -294,11 +296,10 @@
 # @deprecated: This command is deprecated.  Use @block-export-del
 #     instead.
 #
-# Returns: error if
-#
-#     - the server is not running
-#     - export is not found
-#     - mode is 'safe' and there are existing connections
+# Errors:
+#     - if the server is not running
+#     - if export is not found
+#     - if mode is 'safe' and there are existing connections
 #
 # Since: 2.12
 ##
@@ -415,8 +416,10 @@
 # @mode: Mode of command operation.  See @BlockExportRemoveMode
 #     description.  Default is 'safe'.
 #
-# Returns: Error if the export is not found or @mode is 'safe' and the
-#     export is still in use (e.g. by existing client connections)
+# Errors:
+#     - if the export is not found
+#     - if @mode is 'safe' and the export is still in use (e.g. by
+#       existing client connections)
 #
 # Since: 5.2
 ##
diff --git a/qapi/block.json b/qapi/block.json
index 79a0bcc208..dab616799a 100644
--- a/qapi/block.json
+++ b/qapi/block.json
@@ -112,6 +112,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If @device is not a valid block device, DeviceNotFound
 #
 # Notes: Ejecting a device with no media results in success
@@ -461,6 +463,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If @device is not a valid block device, DeviceNotFound
 #
 # Since: 1.1
@@ -540,8 +544,8 @@
 # @boundaries-flush: list of interval boundary values for flush
 #     latency histogram.
 #
-# Returns: error if device is not found or any boundary arrays are
-#     invalid.
+# Errors:
+#     - if device is not found or any boundary arrays are invalid.
 #
 # Since: 4.0
 #
diff --git a/qapi/machine-target.json b/qapi/machine-target.json
index 2c5dda735e..db6c0fae98 100644
--- a/qapi/machine-target.json
+++ b/qapi/machine-target.json
@@ -154,10 +154,13 @@
 # Some architectures may not support comparing CPU models.  s390x
 # supports comparing CPU models.
 #
-# Returns: a CpuModelBaselineInfo.  Returns an error if comparing CPU
-#     models is not supported, if a model cannot be used, if a model
-#     contains an unknown cpu definition name, unknown properties or
-#     properties with wrong types.
+# Returns: a CpuModelBaselineInfo
+#
+# Errors:
+#     - if comparing CPU models is not supported
+#     - if a model cannot be used
+#     - if a model contains an unknown cpu definition name, unknown
+#       properties or properties with wrong types.
 #
 # Note: this command isn't specific to s390x, but is only implemented
 #     on this architecture currently.
@@ -201,10 +204,13 @@
 # Some architectures may not support baselining CPU models.  s390x
 # supports baselining CPU models.
 #
-# Returns: a CpuModelBaselineInfo.  Returns an error if baselining CPU
-#     models is not supported, if a model cannot be used, if a model
-#     contains an unknown cpu definition name, unknown properties or
-#     properties with wrong types.
+# Returns: a CpuModelBaselineInfo
+#
+# Errors:
+#     - if baselining CPU models is not supported
+#     - if a model cannot be used
+#     - if a model contains an unknown cpu definition name, unknown
+#       properties or properties with wrong types.
 #
 # Note: this command isn't specific to s390x, but is only implemented
 #     on this architecture currently.
@@ -263,11 +269,14 @@
 # Some architectures may not support all expansion types.  s390x
 # supports "full" and "static". Arm only supports "full".
 #
-# Returns: a CpuModelExpansionInfo.  Returns an error if expanding CPU
-#     models is not supported, if the model cannot be expanded, if the
-#     model contains an unknown CPU definition name, unknown
-#     properties or properties with a wrong type.  Also returns an
-#     error if an expansion type is not supported.
+# Returns: a CpuModelExpansionInfo
+#
+# Errors:
+#     - if expanding CPU models is not supported
+#     - if the model cannot be expanded
+#     - if the model contains an unknown CPU definition name, unknown
+#       properties or properties with a wrong type
+#     - if an expansion type is not supported
 #
 # Since: 2.8
 ##
diff --git a/qapi/machine.json b/qapi/machine.json
index 93b4677286..0985c61740 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -1062,6 +1062,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If the balloon driver is enabled but not functional because
 #       the KVM kernel module cannot support it, KVMMissingCap
 #     - If no balloon device is present, DeviceNotActive
@@ -1100,6 +1102,8 @@
 #
 # Returns:
 #     - @BalloonInfo on success
+#
+# Errors:
 #     - If the balloon driver is enabled but not functional because
 #       the KVM kernel module cannot support it, KVMMissingCap
 #     - If no balloon device is present, DeviceNotActive
@@ -1164,6 +1168,8 @@
 #
 # Returns:
 #     - @HvBalloonInfo on success
+#
+# Errors:
 #     - If no hv-balloon device is present, guest memory status
 #       reporting is not enabled or no guest memory status report
 #       received yet, GenericError
diff --git a/qapi/misc.json b/qapi/misc.json
index 11c55c2b6c..578f574a68 100644
--- a/qapi/misc.json
+++ b/qapi/misc.json
@@ -345,6 +345,8 @@
 #
 # Returns:
 #     - @AddfdInfo on success
+#
+# Errors:
 #     - If file descriptor was not received, GenericError
 #     - If @fdset-id is a negative value, GenericError
 #
@@ -376,6 +378,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If @fdset-id or @fd is not found, GenericError
 #
 # Since: 1.2
@@ -528,8 +532,10 @@
 # @option: option name
 #
 # Returns: list of @CommandLineOptionInfo for all options (or for the
-#     given @option).  Returns an error if the given @option doesn't
-#     exist.
+#     given @option).
+#
+# Errors:
+#     - if the given @option doesn't exist
 #
 # Since: 1.5
 #
diff --git a/qapi/net.json b/qapi/net.json
index 1374caac64..09e644a742 100644
--- a/qapi/net.json
+++ b/qapi/net.json
@@ -19,6 +19,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If @name is not a valid network device, DeviceNotFound
 #
 # Since: 0.14
@@ -46,6 +48,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If @type is not a valid network backend, DeviceNotFound
 #
 # Example:
@@ -67,6 +71,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If @id is not a valid network backend, DeviceNotFound
 #
 # Since: 0.14
@@ -828,9 +834,11 @@
 # @name: net client name
 #
 # Returns: list of @RxFilterInfo for all NICs (or for the given NIC).
-#     Returns an error if the given @name doesn't exist, or given NIC
-#     doesn't support rx-filter querying, or given net client isn't a
-#     NIC.
+#
+# Errors:
+#     - if the given @name doesn't exist
+#     - if the given NIC doesn't support rx-filter querying
+#     - if the given net client isn't a NIC
 #
 # Since: 1.6
 #
diff --git a/qapi/qdev.json b/qapi/qdev.json
index 32ffaee644..cc72c55a99 100644
--- a/qapi/qdev.json
+++ b/qapi/qdev.json
@@ -91,6 +91,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If @id is not a valid device, DeviceNotFound
 #
 # Notes: When this command completes, the device may not be removed
diff --git a/qapi/qom.json b/qapi/qom.json
index 2a6e49365a..33aa30bb41 100644
--- a/qapi/qom.json
+++ b/qapi/qom.json
@@ -1058,6 +1058,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - Error if @qom-type is not a valid class name
 #
 # Since: 2.0
@@ -1081,6 +1083,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - Error if @id is not a valid id for a QOM object
 #
 # Since: 2.0
diff --git a/qapi/transaction.json b/qapi/transaction.json
index 45233ddd2a..78cc21800d 100644
--- a/qapi/transaction.json
+++ b/qapi/transaction.json
@@ -236,7 +236,8 @@
 #
 # Returns: nothing on success
 #
-#     Errors depend on the operations of the transaction
+# Errors:
+#     Any errors from commands in the transaction
 #
 # Note: The transaction aborts on the first failure.  Therefore, there
 #     will be information on only one failed operation returned in an
diff --git a/qapi/ui.json b/qapi/ui.json
index e3999b7c07..199a412c5a 100644
--- a/qapi/ui.json
+++ b/qapi/ui.json
@@ -80,6 +80,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If Spice is not enabled, DeviceNotFound
 #
 # Since: 0.14
@@ -142,6 +144,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If @protocol is 'spice' and Spice is not active,
 #       DeviceNotFound
 #
@@ -1038,6 +1042,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - If key is unknown or redundant, GenericError
 #
 # Since: 1.3
diff --git a/qapi/yank.json b/qapi/yank.json
index b7aeb9ceef..a457284b45 100644
--- a/qapi/yank.json
+++ b/qapi/yank.json
@@ -80,6 +80,8 @@
 #
 # Returns:
 #     - Nothing on success
+#
+# Errors:
 #     - @DeviceNotFound error, if any of the YankInstances doesn't exist
 #
 # Example:
-- 
2.43.0

[PATCH 05/13] qapi: Delete useless "Returns" sections

[Markus Armbruster]

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 qapi/block-core.json     | 66 ----------------------------------------
 qapi/block.json          |  6 ----
 qapi/char.json           |  6 ----
 qapi/dump.json           |  2 --
 qapi/machine-target.json |  2 --
 qapi/machine.json        | 11 -------
 qapi/migration.json      | 26 ----------------
 qapi/misc-target.json    |  3 --
 qapi/misc.json           | 15 ---------
 qapi/net.json            |  9 ------
 qapi/qdev.json           |  3 --
 qapi/qom.json            |  6 ----
 qapi/run-state.json      |  5 +--
 qapi/tpm.json            |  2 --
 qapi/transaction.json    |  2 --
 qapi/ui.json             | 17 -----------
 qapi/yank.json           |  3 --
 17 files changed, 1 insertion(+), 183 deletions(-)

diff --git a/qapi/block-core.json b/qapi/block-core.json
index cea46b4668..94b01deffc 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -1456,9 +1456,6 @@
 #
 # @size: new image size in bytes
 #
-# Returns:
-#     - nothing on success
-#
 # Errors:
 #     - If @device is not a valid block device, DeviceNotFound
 #
@@ -1676,9 +1673,6 @@
 #
 # For the arguments, see the documentation of BlockdevSnapshotSync.
 #
-# Returns:
-#     - nothing on success
-#
 # Errors:
 #     - If @device is not a valid block device, DeviceNotFound
 #
@@ -1758,9 +1752,6 @@
 #     is not validated, so care should be taken when specifying the
 #     string or the image chain may not be able to be reopened again.
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If "device" does not exist or cannot be determined,
 #       DeviceNotFound
@@ -1860,9 +1851,6 @@
 # @deprecated: Members @base and @top are deprecated.  Use @base-node
 #     and @top-node instead.
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If @device does not exist, DeviceNotFound
 #     - Any other error returns a GenericError.
@@ -1902,9 +1890,6 @@
 # @deprecated: This command is deprecated.  Use @blockdev-backup
 #     instead.
 #
-# Returns:
-#     - nothing on success
-#
 # Errors:
 #     - If @device is not a valid block device, GenericError
 #
@@ -1931,9 +1916,6 @@
 # 'backup'. The operation can be stopped before it has completed using
 # the block-job-cancel command.
 #
-# Returns:
-#     - nothing on success
-#
 # Errors:
 #     - If @device is not a valid block device, DeviceNotFound
 #
@@ -2139,9 +2121,6 @@
 # specifies the format of the mirror image, default is to probe if
 # mode='existing', else the format of the source.
 #
-# Returns:
-#     - nothing on success
-#
 # Errors:
 #     - If @device is not a valid block device, GenericError
 #
@@ -2318,9 +2297,6 @@
 # Create a dirty bitmap with a name on the node, and start tracking
 # the writes.
 #
-# Returns:
-#     - nothing on success
-#
 # Errors:
 #     - If @node is not a valid block device or node, DeviceNotFound
 #     - If @name is already taken, GenericError with an explanation
@@ -2344,9 +2320,6 @@
 # with block-dirty-bitmap-add.  If the bitmap is persistent, remove it
 # from its storage too.
 #
-# Returns:
-#     - nothing on success
-#
 # Errors:
 #     - If @node is not a valid block device or node, DeviceNotFound
 #     - If @name is not found, GenericError with an explanation
@@ -2371,9 +2344,6 @@
 # backup from this point in time forward will only backup clusters
 # modified after this clear operation.
 #
-# Returns:
-#     - nothing on success
-#
 # Errors:
 #     - If @node is not a valid block device, DeviceNotFound
 #     - If @name is not found, GenericError with an explanation
@@ -2395,9 +2365,6 @@
 #
 # Enables a dirty bitmap so that it will begin tracking disk changes.
 #
-# Returns:
-#     - nothing on success
-#
 # Errors:
 #     - If @node is not a valid block device, DeviceNotFound
 #     - If @name is not found, GenericError with an explanation
@@ -2419,9 +2386,6 @@
 #
 # Disables a dirty bitmap so that it will stop tracking disk changes.
 #
-# Returns:
-#     - nothing on success
-#
 # Errors:
 #     - If @node is not a valid block device, DeviceNotFound
 #     - If @name is not found, GenericError with an explanation
@@ -2451,9 +2415,6 @@
 # dirty in any of the source bitmaps.  This can be used to achieve
 # backup checkpoints, or in simpler usages, to copy bitmaps.
 #
-# Returns:
-#     - nothing on success
-#
 # Errors:
 #     - If @node is not a valid block device, DeviceNotFound
 #     - If any bitmap in @bitmaps or @target is not found,
@@ -2570,8 +2531,6 @@
 #     disappear from the query list without user intervention.
 #     Defaults to true.  (Since 3.1)
 #
-# Returns: nothing on success.
-#
 # Since: 2.6
 #
 # Example:
@@ -2894,9 +2853,6 @@
 #     disappear from the query list without user intervention.
 #     Defaults to true.  (Since 3.1)
 #
-# Returns:
-#     - Nothing on success.
-#
 # Errors:
 #     - If @device does not exist, DeviceNotFound.
 #
@@ -2935,9 +2891,6 @@
 # @speed: the maximum speed, in bytes per second, or 0 for unlimited.
 #     Defaults to 0.
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
@@ -2982,9 +2935,6 @@
 #     paused) instead of waiting for the destination to complete its
 #     final synchronization (since 1.3)
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
@@ -3011,9 +2961,6 @@
 #     the name of the parameter), but since QEMU 2.7 it can have other
 #     values.
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
@@ -3038,9 +2985,6 @@
 #     the name of the parameter), but since QEMU 2.7 it can have other
 #     values.
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
@@ -3072,9 +3016,6 @@
 #     the name of the parameter), but since QEMU 2.7 it can have other
 #     values.
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
@@ -3099,8 +3040,6 @@
 #
 # @id: The job identifier.
 #
-# Returns: Nothing on success
-#
 # Since: 2.12
 ##
 { 'command': 'block-job-dismiss', 'data': { 'id': 'str' },
@@ -3118,8 +3057,6 @@
 #
 # @id: The job identifier.
 #
-# Returns: Nothing on success
-#
 # Since: 2.12
 ##
 { 'command': 'block-job-finalize', 'data': { 'id': 'str' },
@@ -6110,9 +6047,6 @@
 # For the arguments, see the documentation of
 # BlockdevSnapshotInternal.
 #
-# Returns:
-#     - nothing on success
-#
 # Errors:
 #     - If @device is not a valid block device, GenericError
 #     - If any snapshot matching @name exists, or @name is empty,
diff --git a/qapi/block.json b/qapi/block.json
index dab616799a..65d9804bdf 100644
--- a/qapi/block.json
+++ b/qapi/block.json
@@ -110,9 +110,6 @@
 #
 # @deprecated: Member @device is deprecated.  Use @id instead.
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If @device is not a valid block device, DeviceNotFound
 #
@@ -461,9 +458,6 @@
 # the device will be removed from its group and the rest of its
 # members will not be affected.  The 'group' parameter is ignored.
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If @device is not a valid block device, DeviceNotFound
 #
diff --git a/qapi/char.json b/qapi/char.json
index 4873bc635a..777dde55d9 100644
--- a/qapi/char.json
+++ b/qapi/char.json
@@ -139,8 +139,6 @@
 #     - data itself is always Unicode regardless of format, like any
 #       other string.
 #
-# Returns: Nothing on success
-#
 # Since: 1.4
 #
 # Example:
@@ -772,8 +770,6 @@
 #
 # @id: the chardev's ID, must exist and not be in use
 #
-# Returns: Nothing on success
-#
 # Since: 1.4
 #
 # Example:
@@ -791,8 +787,6 @@
 #
 # @id: the chardev's ID, must exist
 #
-# Returns: Nothing on success
-#
 # Since: 2.10
 #
 # Example:
diff --git a/qapi/dump.json b/qapi/dump.json
index f82dd6a1af..4c021dd53c 100644
--- a/qapi/dump.json
+++ b/qapi/dump.json
@@ -92,8 +92,6 @@
 #
 # Note: All boolean arguments default to false
 #
-# Returns: nothing on success
-#
 # Since: 1.2
 #
 # Example:
diff --git a/qapi/machine-target.json b/qapi/machine-target.json
index db6c0fae98..519adf3220 100644
--- a/qapi/machine-target.json
+++ b/qapi/machine-target.json
@@ -414,8 +414,6 @@
 #
 # @unstable: This command is experimental.
 #
-# Returns: Nothing on success.
-#
 # Since: 8.2
 ##
 { 'command': 'set-cpu-topology',
diff --git a/qapi/machine.json b/qapi/machine.json
index 0985c61740..7d3ca33683 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -326,8 +326,6 @@
 #
 # Since: 1.1
 #
-# Returns: nothing.
-#
 # Note: prior to 4.0, this command does nothing in case the guest
 #     isn't suspended.
 #
@@ -377,8 +375,6 @@
 # all CPUs (ppc64). The command fails when the guest doesn't support
 # injecting.
 #
-# Returns: If successful, nothing
-#
 # Since: 0.14
 #
 # Note: prior to 2.1, this command was only supported for x86 and s390
@@ -778,8 +774,6 @@
 # @cpu-index: the index of the virtual CPU to use for translating the
 #     virtual address (defaults to CPU 0)
 #
-# Returns: Nothing on success
-#
 # Since: 0.14
 #
 # Notes: Errors were not reliably returned until 1.1
@@ -806,8 +800,6 @@
 #
 # @filename: the file to save the memory to as binary data
 #
-# Returns: Nothing on success
-#
 # Since: 0.14
 #
 # Notes: Errors were not reliably returned until 1.1
@@ -1060,9 +1052,6 @@
 #
 #     From it we have: balloon_size = vm_ram_size - @value
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If the balloon driver is enabled but not functional because
 #       the KVM kernel module cannot support it, KVMMissingCap
diff --git a/qapi/migration.json b/qapi/migration.json
index 7303e57e8e..facdb28bbc 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -1555,8 +1555,6 @@
 #
 # Cancel the current executing migration process.
 #
-# Returns: nothing on success
-#
 # Notes: This command succeeds even if there is no migration process
 #     running.
 #
@@ -1576,8 +1574,6 @@
 #
 # @state: The state the migration is currently expected to be in
 #
-# Returns: nothing on success
-#
 # Since: 2.11
 #
 # Example:
@@ -1699,8 +1695,6 @@
 # @deprecated: Members @inc and @blk are deprecated.  Use
 #     blockdev-mirror with NBD instead.
 #
-# Returns: nothing on success
-#
 # Since: 0.14
 #
 # Notes:
@@ -1782,8 +1776,6 @@
 # @channels: list of migration stream channels with each stream in the
 #     list connected to a destination interface endpoint.
 #
-# Returns: nothing on success
-#
 # Since: 2.3
 #
 # Notes:
@@ -1851,8 +1843,6 @@
 # @live: Optional argument to ask QEMU to treat this command as part
 #     of a live migration.  Default to true.  (since 2.11)
 #
-# Returns: Nothing on success
-#
 # Since: 1.1
 #
 # Example:
@@ -1871,8 +1861,6 @@
 #
 # @enable: true to enable, false to disable.
 #
-# Returns: nothing
-#
 # Since: 1.3
 #
 # Example:
@@ -1915,8 +1903,6 @@
 # @failover: true to do failover, false to stop.  but cannot be
 #     specified if 'enable' is true.  default value is false.
 #
-# Returns: nothing.
-#
 # Example:
 #
 #     -> { "execute": "xen-set-replication",
@@ -1968,8 +1954,6 @@
 #
 # Xen uses this command to notify replication to trigger a checkpoint.
 #
-# Returns: nothing.
-#
 # Example:
 #
 #     -> { "execute": "xen-colo-do-checkpoint" }
@@ -2026,8 +2010,6 @@
 #
 # @uri: the URI to be used for the recovery of migration stream.
 #
-# Returns: nothing.
-#
 # Example:
 #
 #     -> { "execute": "migrate-recover",
@@ -2045,8 +2027,6 @@
 #
 # Pause a migration.  Currently it only supports postcopy.
 #
-# Returns: nothing.
-#
 # Example:
 #
 #     -> { "execute": "migrate-pause" }
@@ -2415,8 +2395,6 @@
 #
 # If @tag already exists, an error will be reported
 #
-# Returns: nothing
-#
 # Example:
 #
 #     -> { "execute": "snapshot-save",
@@ -2487,8 +2465,6 @@
 # device nodes that can have changed since the original @snapshot-save
 # command execution.
 #
-# Returns: nothing
-#
 # Example:
 #
 #     -> { "execute": "snapshot-load",
@@ -2550,8 +2526,6 @@
 # to determine completion and to fetch details of any errors that
 # arise.
 #
-# Returns: nothing
-#
 # Example:
 #
 #     -> { "execute": "snapshot-delete",
diff --git a/qapi/misc-target.json b/qapi/misc-target.json
index 542a3e42f2..4e0a6492a9 100644
--- a/qapi/misc-target.json
+++ b/qapi/misc-target.json
@@ -472,9 +472,6 @@
 #
 # @port: The port number
 #
-# Returns:
-#     - Nothing on success.
-#
 # Since: 8.0
 #
 # Example:
diff --git a/qapi/misc.json b/qapi/misc.json
index 578f574a68..015388aa3e 100644
--- a/qapi/misc.json
+++ b/qapi/misc.json
@@ -28,8 +28,6 @@
 #
 # @tls: whether to perform TLS. Only applies to the "spice" protocol
 #
-# Returns: nothing on success.
-#
 # Since: 0.14
 #
 # Example:
@@ -160,8 +158,6 @@
 #
 # Since: 0.14
 #
-# Returns: If successful, nothing
-#
 # Notes: This command will succeed if the guest is currently running.
 #     It will also succeed if the guest is in the "inmigrate" state;
 #     in this case, the effect of the command is to make sure the
@@ -196,8 +192,6 @@
 #
 # Since: 3.0
 #
-# Returns: nothing
-#
 # Example:
 #
 #     -> { "execute": "x-exit-preconfig" }
@@ -256,8 +250,6 @@
 #
 # @fdname: file descriptor name
 #
-# Returns: Nothing on success
-#
 # Since: 0.14
 #
 # Notes: If @fdname already exists, the file descriptor assigned to it
@@ -285,8 +277,6 @@
 #
 # @fdname: file descriptor name
 #
-# Returns: Nothing on success
-#
 # Since: 8.0
 #
 # Notes: If @fdname already exists, the file descriptor assigned to it
@@ -309,8 +299,6 @@
 #
 # @fdname: file descriptor name
 #
-# Returns: Nothing on success
-#
 # Since: 0.14
 #
 # Example:
@@ -376,9 +364,6 @@
 #
 # @fd: The file descriptor that is to be removed.
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If @fdset-id or @fd is not found, GenericError
 #
diff --git a/qapi/net.json b/qapi/net.json
index 09e644a742..417b61a321 100644
--- a/qapi/net.json
+++ b/qapi/net.json
@@ -17,9 +17,6 @@
 #
 # @up: true to set the link status to be up
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If @name is not a valid network device, DeviceNotFound
 #
@@ -46,9 +43,6 @@
 #
 # Since: 0.14
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If @type is not a valid network backend, DeviceNotFound
 #
@@ -69,9 +63,6 @@
 #
 # @id: the name of the network backend to remove
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If @id is not a valid network backend, DeviceNotFound
 #
diff --git a/qapi/qdev.json b/qapi/qdev.json
index cc72c55a99..facaa0bc6a 100644
--- a/qapi/qdev.json
+++ b/qapi/qdev.json
@@ -89,9 +89,6 @@
 #
 # @id: the device's ID or QOM path
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If @id is not a valid device, DeviceNotFound
 #
diff --git a/qapi/qom.json b/qapi/qom.json
index 33aa30bb41..032c6fa037 100644
--- a/qapi/qom.json
+++ b/qapi/qom.json
@@ -1056,9 +1056,6 @@
 #
 # Create a QOM object.
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - Error if @qom-type is not a valid class name
 #
@@ -1081,9 +1078,6 @@
 #
 # @id: the name of the QOM object to remove
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - Error if @id is not a valid id for a QOM object
 #
diff --git a/qapi/run-state.json b/qapi/run-state.json
index dd0770b379..789fc34559 100644
--- a/qapi/run-state.json
+++ b/qapi/run-state.json
@@ -395,10 +395,7 @@
 #
 # @panic: @PanicAction action taken on guest panic.
 #
-# @watchdog: @WatchdogAction action taken when watchdog timer expires
-#     .
-#
-# Returns: Nothing on success.
+# @watchdog: @WatchdogAction action taken when watchdog timer expires.
 #
 # Since: 6.0
 #
diff --git a/qapi/tpm.json b/qapi/tpm.json
index 07a73e5f2b..1577b5c259 100644
--- a/qapi/tpm.json
+++ b/qapi/tpm.json
@@ -166,8 +166,6 @@
 #
 # Return information about the TPM device
 #
-# Returns: @TPMInfo on success
-#
 # Since: 1.5
 #
 # Example:
diff --git a/qapi/transaction.json b/qapi/transaction.json
index 78cc21800d..5749c133d4 100644
--- a/qapi/transaction.json
+++ b/qapi/transaction.json
@@ -234,8 +234,6 @@
 #     execution of the transaction.  See @TransactionProperties for
 #     additional detail.
 #
-# Returns: nothing on success
-#
 # Errors:
 #     Any errors from commands in the transaction
 #
diff --git a/qapi/ui.json b/qapi/ui.json
index 199a412c5a..1726f15429 100644
--- a/qapi/ui.json
+++ b/qapi/ui.json
@@ -78,9 +78,6 @@
 #
 # Set the password of a remote display server.
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If Spice is not enabled, DeviceNotFound
 #
@@ -142,9 +139,6 @@
 #
 # Expire the password of a remote display server.
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If @protocol is 'spice' and Spice is not active,
 #       DeviceNotFound
@@ -191,8 +185,6 @@
 #
 # @format: image format for screendump.  (default: ppm) (Since 7.1)
 #
-# Returns: Nothing on success
-#
 # Since: 0.14
 #
 # Example:
@@ -1040,9 +1032,6 @@
 # @hold-time: time to delay key up events, milliseconds.  Defaults to
 #     100
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - If key is unknown or redundant, GenericError
 #
@@ -1265,8 +1254,6 @@
 #
 # @events: List of InputEvent union.
 #
-# Returns: Nothing on success.
-#
 # Since: 2.6
 #
 # Note: The consoles are visible in the qom tree, under
@@ -1611,8 +1598,6 @@
 #
 # Reload display configuration.
 #
-# Returns: Nothing on success.
-#
 # Since: 6.0
 #
 # Example:
@@ -1670,8 +1655,6 @@
 #
 # Update display configuration.
 #
-# Returns: Nothing on success.
-#
 # Since: 7.1
 #
 # Example:
diff --git a/qapi/yank.json b/qapi/yank.json
index a457284b45..fffb39a397 100644
--- a/qapi/yank.json
+++ b/qapi/yank.json
@@ -78,9 +78,6 @@
 #
 # @instances: the instances to be yanked
 #
-# Returns:
-#     - Nothing on success
-#
 # Errors:
 #     - @DeviceNotFound error, if any of the YankInstances doesn't exist
 #
-- 
2.43.0

[PATCH 06/13] qapi: Clean up "Returns" sections

[Markus Armbruster]

Drop list markup, since there's just one item left.

Drop "on success" where it is redundant with "Returns:".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 qapi/block-core.json | 4 ++--
 qapi/machine.json    | 4 ++--
 qapi/misc.json       | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/qapi/block-core.json b/qapi/block-core.json
index 94b01deffc..1874f880a8 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -2457,7 +2457,7 @@
 # @unstable: This command is meant for debugging.
 #
 # Returns:
-#     - BlockDirtyBitmapSha256 on success
+#     BlockDirtyBitmapSha256
 #
 # Errors:
 #     - If @node is not a valid block device, DeviceNotFound
@@ -6084,7 +6084,7 @@
 # @name: optional the snapshot's name to be deleted
 #
 # Returns:
-#     - SnapshotInfo on success
+#     SnapshotInfo
 #
 # Errors:
 #     - If @device is not a valid block device, GenericError
diff --git a/qapi/machine.json b/qapi/machine.json
index 7d3ca33683..bb5a178909 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -1090,7 +1090,7 @@
 # Return information about the balloon device.
 #
 # Returns:
-#     - @BalloonInfo on success
+#     @BalloonInfo
 #
 # Errors:
 #     - If the balloon driver is enabled but not functional because
@@ -1156,7 +1156,7 @@
 # message from the guest.
 #
 # Returns:
-#     - @HvBalloonInfo on success
+#     @HvBalloonInfo
 #
 # Errors:
 #     - If no hv-balloon device is present, guest memory status
diff --git a/qapi/misc.json b/qapi/misc.json
index 015388aa3e..1b0c5dad88 100644
--- a/qapi/misc.json
+++ b/qapi/misc.json
@@ -332,7 +332,7 @@
 # @opaque: A free-form string that can be used to describe the fd.
 #
 # Returns:
-#     - @AddfdInfo on success
+#     @AddfdInfo
 #
 # Errors:
 #     - If file descriptor was not received, GenericError
-- 
2.43.0

[PATCH 07/13] qapi/yank: Tweak @yank's error description for consistency

[Markus Armbruster]

Phrase it like "If <condition>, <error>", like we do elsewhere.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 qapi/yank.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qapi/yank.json b/qapi/yank.json
index fffb39a397..89f2f4d199 100644
--- a/qapi/yank.json
+++ b/qapi/yank.json
@@ -79,7 +79,7 @@
 # @instances: the instances to be yanked
 #
 # Errors:
-#     - @DeviceNotFound error, if any of the YankInstances doesn't exist
+#     - If any of the YankInstances doesn't exist, DeviceNotFound
 #
 # Example:
 #
-- 
2.43.0

[PATCH 08/13] qga/qapi-schema: Move error documentation to new "Errors" sections

[Markus Armbruster]

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 qga/qapi-schema.json | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index b8efe31897..c5f2ac8f59 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -561,9 +561,8 @@
 # could also exit (or set its status to "shutdown") due to other
 # reasons.
 #
-# The following errors may be returned:
-#
-# - If suspend to disk is not supported, Unsupported
+# Errors:
+#     - If suspend to disk is not supported, Unsupported
 #
 # Notes: It's strongly recommended to issue the guest-sync command
 #     before sending commands when the guest resumes
@@ -598,9 +597,8 @@
 # 2. Issue the query-status QMP command to confirm the VM status is
 #    "suspended"
 #
-# The following errors may be returned:
-#
-# - If suspend to ram is not supported, Unsupported
+# Errors:
+#     - If suspend to ram is not supported, Unsupported
 #
 # Notes: It's strongly recommended to issue the guest-sync command
 #     before sending commands when the guest resumes
@@ -634,9 +632,8 @@
 # 2. Issue the query-status QMP command to confirm the VM status is
 #    "suspended"
 #
-# The following errors may be returned:
-#
-# - If hybrid suspend is not supported, Unsupported
+# Errors:
+#     - If hybrid suspend is not supported, Unsupported
 #
 # Notes: It's strongly recommended to issue the guest-sync command
 #     before sending commands when the guest resumes
@@ -796,9 +793,6 @@
 #     - 0:
 #       if the @vcpus list was empty on input.  Guest state has not
 #       been changed.  Otherwise,
-#     - Error:
-#       processing the first node of @vcpus failed for the reason
-#       returned.  Guest state has not been changed.  Otherwise,
 #     - < length(@vcpus):
 #       more than zero initial nodes have been processed, but not the
 #       entire @vcpus list.  Guest state has changed accordingly.  To
@@ -808,6 +802,10 @@
 #     - length(@vcpus):
 #       call successful.
 #
+# Errors:
+#     - If the reconfiguration of the first node in @vcpus failed.
+#       Guest state has not been changed.
+#
 # Since: 1.5
 ##
 { 'command': 'guest-set-vcpus',
-- 
2.43.0

[PATCH 09/13] qga/qapi-schema: Delete useless "Returns" sections

[Markus Armbruster]

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 qga/qapi-schema.json | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index c5f2ac8f59..636c2c5697 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -153,8 +153,6 @@
 # @time: time of nanoseconds, relative to the Epoch of 1970-01-01 in
 #     UTC.
 #
-# Returns: Nothing on success.
-#
 # Since: 1.5
 ##
 { 'command': 'guest-set-time',
@@ -245,8 +243,6 @@
 #
 # @handle: filehandle returned by guest-file-open
 #
-# Returns: Nothing on success.
-#
 # Since: 0.15.0
 ##
 { 'command': 'guest-file-close',
@@ -399,8 +395,6 @@
 #
 # @handle: filehandle returned by guest-file-open
 #
-# Returns: Nothing on success.
-#
 # Since: 0.15.0
 ##
 { 'command': 'guest-file-flush',
@@ -1077,8 +1071,6 @@
 # transmission, even if already crypt()d, to ensure it is 8-bit safe
 # when passed as JSON.
 #
-# Returns: Nothing on success.
-#
 # Since: 2.3
 ##
 { 'command': 'guest-set-user-password',
@@ -1602,8 +1594,6 @@
 #
 # @reset: ignore the existing content, set it with the given keys only
 #
-# Returns: Nothing on success.
-#
 # Since: 5.2
 ##
 { 'command': 'guest-ssh-add-authorized-keys',
@@ -1622,8 +1612,6 @@
 # @keys: the public keys to remove (in OpenSSH/sshd(8) authorized_keys
 #     format)
 #
-# Returns: Nothing on success.
-#
 # Since: 5.2
 ##
 { 'command': 'guest-ssh-remove-authorized-keys',
-- 
2.43.0

[PATCH 10/13] qga/qapi-schema: Clean up "Returns" sections

[Markus Armbruster]

Drop "on success" where it is redundant with "Returns:".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 qga/qapi-schema.json | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index 636c2c5697..326d324901 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -228,7 +228,7 @@
 #
 # @mode: open mode, as per fopen(), "r" is the default.
 #
-# Returns: Guest file handle on success.
+# Returns: Guest file handle
 #
 # Since: 0.15.0
 ##
@@ -277,7 +277,7 @@
 # @count: maximum number of bytes to read (default is 4KB, maximum is
 #     48MB)
 #
-# Returns: @GuestFileRead on success.
+# Returns: @GuestFileRead
 #
 # Since: 0.15.0
 ##
@@ -312,7 +312,7 @@
 # @count: bytes to write (actual bytes, after base64-decode), default
 #     is all content in buf-b64 buffer after base64 decoding
 #
-# Returns: @GuestFileWrite on success.
+# Returns: @GuestFileWrite
 #
 # Since: 0.15.0
 ##
@@ -379,7 +379,7 @@
 #
 # @whence: Symbolic or numeric code for interpreting offset
 #
-# Returns: @GuestFileSeek on success.
+# Returns: @GuestFileSeek
 #
 # Since: 0.15.0
 ##
@@ -723,7 +723,7 @@
 #
 # Get list of guest IP addresses, MAC addresses and netmasks.
 #
-# Returns: List of GuestNetworkInterface on success.
+# Returns: List of GuestNetworkInterface
 #
 # Since: 1.1
 ##
@@ -1247,7 +1247,7 @@
 #
 # @pid: pid returned from guest-exec
 #
-# Returns: GuestExecStatus on success.
+# Returns: GuestExecStatus
 #
 # Since: 2.5
 ##
@@ -1315,7 +1315,7 @@
 # @capture-output: bool flag to enable capture of stdout/stderr of
 #     running process.  defaults to false.
 #
-# Returns: PID on success.
+# Returns: PID
 #
 # Since: 2.5
 ##
@@ -1344,7 +1344,7 @@
 # or even present in DNS or some other name service at all.  It need
 # not even be unique on your local network or site, but usually it is.
 #
-# Returns: the host name of the machine on success
+# Returns: the host name of the machine
 #
 # Since: 2.10
 ##
-- 
2.43.0

[PATCH 11/13] qga/qapi-schema: Tweak documentation of fsfreeze commands

[Markus Armbruster]

"Returns:" sections of guest-fsfreeze-freeze and
guest-fsfreeze-freeze-list describe both command behavior and success
response.  Move behavior out, so "Returns:" is only about success
response.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 qga/qapi-schema.json | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index 326d324901..2ea1022092 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -437,15 +437,16 @@
 # command succeeded, you may call @guest-fsfreeze-thaw later to
 # unfreeze.
 #
+# On error, all filesystems will be thawed.  If no filesystems are
+# frozen as a result of this call, then @guest-fsfreeze-status will
+# remain "thawed" and calling @guest-fsfreeze-thaw is not necessary.
+#
+# Returns: Number of file systems currently frozen.
+#
 # Note: On Windows, the command is implemented with the help of a
 #     Volume Shadow-copy Service DLL helper.  The frozen state is
 #     limited for up to 10 seconds by VSS.
 #
-# Returns: Number of file systems currently frozen.  On error, all
-#     filesystems will be thawed.  If no filesystems are frozen as a
-#     result of this call, then @guest-fsfreeze-status will remain
-#     "thawed" and calling @guest-fsfreeze-thaw is not necessary.
-#
 # Since: 0.15.0
 ##
 { 'command': 'guest-fsfreeze-freeze',
@@ -457,12 +458,13 @@
 # Sync and freeze specified guest filesystems.  See also
 # @guest-fsfreeze-freeze.
 #
+# On error, all filesystems will be thawed.
+#
 # @mountpoints: an array of mountpoints of filesystems to be frozen.
 #     If omitted, every mounted filesystem is frozen.  Invalid mount
 #     points are ignored.
 #
-# Returns: Number of file systems currently frozen.  On error, all
-#     filesystems will be thawed.
+# Returns: Number of file systems currently frozen.
 #
 # Since: 2.2
 ##
-- 
2.43.0

[PATCH 12/13] qga/qapi-schema: Fix guest-set-memory-blocks documentation

[Markus Armbruster]

Documentation claims the command can "return NULL".  "NULL" doesn't
exist in JSON.  "null" does, but the command returns lists, and null
isn't.  Correct documentation to "return an empty list".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 qga/qapi-schema.json | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index 2ea1022092..9554b566a7 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -1176,9 +1176,9 @@
 #     @GuestMemoryBlockResponse, which is corresponding to the input
 #     list.
 #
-#     Note: it will return NULL if the @mem-blks list was empty on
-#     input, or there is an error, and in this case, guest state will
-#     not be changed.
+#     Note: it will return an empty list if the @mem-blks list was
+#     empty on input, or there is an error, and in this case, guest
+#     state will not be changed.
 #
 # Since: 2.3
 ##
-- 
2.43.0

[PATCH 13/13] qapi: Reject "Returns" section when command doesn't return anything

[Markus Armbruster]

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 scripts/qapi/parser.py                     | 7 ++++++-
 tests/qapi-schema/doc-invalid-return2.err  | 1 +
 tests/qapi-schema/doc-invalid-return2.json | 7 +++++++
 tests/qapi-schema/doc-invalid-return2.out  | 0
 tests/qapi-schema/meson.build              | 1 +
 5 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 tests/qapi-schema/doc-invalid-return2.err
 create mode 100644 tests/qapi-schema/doc-invalid-return2.json
 create mode 100644 tests/qapi-schema/doc-invalid-return2.out

diff --git a/scripts/qapi/parser.py b/scripts/qapi/parser.py
index a32b2c7e7f..d8f76060b8 100644
--- a/scripts/qapi/parser.py
+++ b/scripts/qapi/parser.py
@@ -721,7 +721,12 @@ def connect_feature(self, feature: 'QAPISchemaFeature') -> None:
         self.features[feature.name].connect(feature)
 
     def check_expr(self, expr: QAPIExpression) -> None:
-        if 'command' not in expr:
+        if 'command' in expr:
+            if self.returns and 'returns' not in expr:
+                raise QAPISemError(
+                    self.returns.info,
+                    "'Returns' section, but command doesn't return anything")
+        else:
             if self.returns:
                 raise QAPISemError(
                     self.returns.info,
diff --git a/tests/qapi-schema/doc-invalid-return2.err b/tests/qapi-schema/doc-invalid-return2.err
new file mode 100644
index 0000000000..c3d0c7a452
--- /dev/null
+++ b/tests/qapi-schema/doc-invalid-return2.err
@@ -0,0 +1 @@
+doc-invalid-return2.json:5: 'Returns' section, but command doesn't return anything
diff --git a/tests/qapi-schema/doc-invalid-return2.json b/tests/qapi-schema/doc-invalid-return2.json
new file mode 100644
index 0000000000..37883d4fea
--- /dev/null
+++ b/tests/qapi-schema/doc-invalid-return2.json
@@ -0,0 +1,7 @@
+# Command doesn't return anything
+
+##
+# @foo:
+# Returns: blah
+##
+{ 'command': 'foo' }
diff --git a/tests/qapi-schema/doc-invalid-return2.out b/tests/qapi-schema/doc-invalid-return2.out
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/tests/qapi-schema/meson.build b/tests/qapi-schema/meson.build
index 4b8329d070..0f479d9317 100644
--- a/tests/qapi-schema/meson.build
+++ b/tests/qapi-schema/meson.build
@@ -79,6 +79,7 @@ schemas = [
   'doc-invalid-end.json',
   'doc-invalid-end2.json',
   'doc-invalid-return.json',
+  'doc-invalid-return2.json',
   'doc-invalid-section.json',
   'doc-invalid-start.json',
   'doc-missing-colon.json',
-- 
2.43.0

Re: [PATCH 12/13] qga/qapi-schema: Fix guest-set-memory-blocks documentation

[Konstantin Kostiuk]

[-- Attachment #1: Type: text/plain, Size: 1181 bytes --]

Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>

On Tue, Feb 27, 2024 at 1:39 PM Markus Armbruster <armbru@redhat.com> wrote:

> Documentation claims the command can "return NULL".  "NULL" doesn't
> exist in JSON.  "null" does, but the command returns lists, and null
> isn't.  Correct documentation to "return an empty list".
>
> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---
>  qga/qapi-schema.json | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
> index 2ea1022092..9554b566a7 100644
> --- a/qga/qapi-schema.json
> +++ b/qga/qapi-schema.json
> @@ -1176,9 +1176,9 @@
>  #     @GuestMemoryBlockResponse, which is corresponding to the input
>  #     list.
>  #
> -#     Note: it will return NULL if the @mem-blks list was empty on
> -#     input, or there is an error, and in this case, guest state will
> -#     not be changed.
> +#     Note: it will return an empty list if the @mem-blks list was
> +#     empty on input, or there is an error, and in this case, guest
> +#     state will not be changed.
>  #
>  # Since: 2.3
>  ##
> --
> 2.43.0
>
>

[-- Attachment #2: Type: text/html, Size: 1720 bytes --]

Re: [PATCH 11/13] qga/qapi-schema: Tweak documentation of fsfreeze commands

[Konstantin Kostiuk]

[-- Attachment #1: Type: text/plain, Size: 2200 bytes --]

Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>

On Tue, Feb 27, 2024 at 1:39 PM Markus Armbruster <armbru@redhat.com> wrote:

> "Returns:" sections of guest-fsfreeze-freeze and
> guest-fsfreeze-freeze-list describe both command behavior and success
> response.  Move behavior out, so "Returns:" is only about success
> response.
>
> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---
>  qga/qapi-schema.json | 16 +++++++++-------
>  1 file changed, 9 insertions(+), 7 deletions(-)
>
> diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
> index 326d324901..2ea1022092 100644
> --- a/qga/qapi-schema.json
> +++ b/qga/qapi-schema.json
> @@ -437,15 +437,16 @@
>  # command succeeded, you may call @guest-fsfreeze-thaw later to
>  # unfreeze.
>  #
> +# On error, all filesystems will be thawed.  If no filesystems are
> +# frozen as a result of this call, then @guest-fsfreeze-status will
> +# remain "thawed" and calling @guest-fsfreeze-thaw is not necessary.
> +#
> +# Returns: Number of file systems currently frozen.
> +#
>  # Note: On Windows, the command is implemented with the help of a
>  #     Volume Shadow-copy Service DLL helper.  The frozen state is
>  #     limited for up to 10 seconds by VSS.
>  #
> -# Returns: Number of file systems currently frozen.  On error, all
> -#     filesystems will be thawed.  If no filesystems are frozen as a
> -#     result of this call, then @guest-fsfreeze-status will remain
> -#     "thawed" and calling @guest-fsfreeze-thaw is not necessary.
> -#
>  # Since: 0.15.0
>  ##
>  { 'command': 'guest-fsfreeze-freeze',
> @@ -457,12 +458,13 @@
>  # Sync and freeze specified guest filesystems.  See also
>  # @guest-fsfreeze-freeze.
>  #
> +# On error, all filesystems will be thawed.
> +#
>  # @mountpoints: an array of mountpoints of filesystems to be frozen.
>  #     If omitted, every mounted filesystem is frozen.  Invalid mount
>  #     points are ignored.
>  #
> -# Returns: Number of file systems currently frozen.  On error, all
> -#     filesystems will be thawed.
> +# Returns: Number of file systems currently frozen.
>  #
>  # Since: 2.2
>  ##
> --
> 2.43.0
>
>

[-- Attachment #2: Type: text/html, Size: 2818 bytes --]

Re: [PATCH 08/13] qga/qapi-schema: Move error documentation to new "Errors" sections

[Konstantin Kostiuk]

[-- Attachment #1: Type: text/plain, Size: 2562 bytes --]

Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>

On Tue, Feb 27, 2024 at 1:39 PM Markus Armbruster <armbru@redhat.com> wrote:

> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---
>  qga/qapi-schema.json | 22 ++++++++++------------
>  1 file changed, 10 insertions(+), 12 deletions(-)
>
> diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
> index b8efe31897..c5f2ac8f59 100644
> --- a/qga/qapi-schema.json
> +++ b/qga/qapi-schema.json
> @@ -561,9 +561,8 @@
>  # could also exit (or set its status to "shutdown") due to other
>  # reasons.
>  #
> -# The following errors may be returned:
> -#
> -# - If suspend to disk is not supported, Unsupported
> +# Errors:
> +#     - If suspend to disk is not supported, Unsupported
>  #
>  # Notes: It's strongly recommended to issue the guest-sync command
>  #     before sending commands when the guest resumes
> @@ -598,9 +597,8 @@
>  # 2. Issue the query-status QMP command to confirm the VM status is
>  #    "suspended"
>  #
> -# The following errors may be returned:
> -#
> -# - If suspend to ram is not supported, Unsupported
> +# Errors:
> +#     - If suspend to ram is not supported, Unsupported
>  #
>  # Notes: It's strongly recommended to issue the guest-sync command
>  #     before sending commands when the guest resumes
> @@ -634,9 +632,8 @@
>  # 2. Issue the query-status QMP command to confirm the VM status is
>  #    "suspended"
>  #
> -# The following errors may be returned:
> -#
> -# - If hybrid suspend is not supported, Unsupported
> +# Errors:
> +#     - If hybrid suspend is not supported, Unsupported
>  #
>  # Notes: It's strongly recommended to issue the guest-sync command
>  #     before sending commands when the guest resumes
> @@ -796,9 +793,6 @@
>  #     - 0:
>  #       if the @vcpus list was empty on input.  Guest state has not
>  #       been changed.  Otherwise,
> -#     - Error:
> -#       processing the first node of @vcpus failed for the reason
> -#       returned.  Guest state has not been changed.  Otherwise,
>  #     - < length(@vcpus):
>  #       more than zero initial nodes have been processed, but not the
>  #       entire @vcpus list.  Guest state has changed accordingly.  To
> @@ -808,6 +802,10 @@
>  #     - length(@vcpus):
>  #       call successful.
>  #
> +# Errors:
> +#     - If the reconfiguration of the first node in @vcpus failed.
> +#       Guest state has not been changed.
> +#
>  # Since: 1.5
>  ##
>  { 'command': 'guest-set-vcpus',
> --
> 2.43.0
>
>

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Re: [PATCH 10/13] qga/qapi-schema: Clean up "Returns" sections

[Konstantin Kostiuk]

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Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>

On Tue, Feb 27, 2024 at 1:39 PM Markus Armbruster <armbru@redhat.com> wrote:

> Drop "on success" where it is redundant with "Returns:".
>
> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---
>  qga/qapi-schema.json | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
> index 636c2c5697..326d324901 100644
> --- a/qga/qapi-schema.json
> +++ b/qga/qapi-schema.json
> @@ -228,7 +228,7 @@
>  #
>  # @mode: open mode, as per fopen(), "r" is the default.
>  #
> -# Returns: Guest file handle on success.
> +# Returns: Guest file handle
>  #
>  # Since: 0.15.0
>  ##
> @@ -277,7 +277,7 @@
>  # @count: maximum number of bytes to read (default is 4KB, maximum is
>  #     48MB)
>  #
> -# Returns: @GuestFileRead on success.
> +# Returns: @GuestFileRead
>  #
>  # Since: 0.15.0
>  ##
> @@ -312,7 +312,7 @@
>  # @count: bytes to write (actual bytes, after base64-decode), default
>  #     is all content in buf-b64 buffer after base64 decoding
>  #
> -# Returns: @GuestFileWrite on success.
> +# Returns: @GuestFileWrite
>  #
>  # Since: 0.15.0
>  ##
> @@ -379,7 +379,7 @@
>  #
>  # @whence: Symbolic or numeric code for interpreting offset
>  #
> -# Returns: @GuestFileSeek on success.
> +# Returns: @GuestFileSeek
>  #
>  # Since: 0.15.0
>  ##
> @@ -723,7 +723,7 @@
>  #
>  # Get list of guest IP addresses, MAC addresses and netmasks.
>  #
> -# Returns: List of GuestNetworkInterface on success.
> +# Returns: List of GuestNetworkInterface
>  #
>  # Since: 1.1
>  ##
> @@ -1247,7 +1247,7 @@
>  #
>  # @pid: pid returned from guest-exec
>  #
> -# Returns: GuestExecStatus on success.
> +# Returns: GuestExecStatus
>  #
>  # Since: 2.5
>  ##
> @@ -1315,7 +1315,7 @@
>  # @capture-output: bool flag to enable capture of stdout/stderr of
>  #     running process.  defaults to false.
>  #
> -# Returns: PID on success.
> +# Returns: PID
>  #
>  # Since: 2.5
>  ##
> @@ -1344,7 +1344,7 @@
>  # or even present in DNS or some other name service at all.  It need
>  # not even be unique on your local network or site, but usually it is.
>  #
> -# Returns: the host name of the machine on success
> +# Returns: the host name of the machine
>  #
>  # Since: 2.10
>  ##
> --
> 2.43.0
>
>

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Re: [PATCH 09/13] qga/qapi-schema: Delete useless "Returns" sections

[Konstantin Kostiuk]

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Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>

On Tue, Feb 27, 2024 at 1:39 PM Markus Armbruster <armbru@redhat.com> wrote:

> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---
>  qga/qapi-schema.json | 12 ------------
>  1 file changed, 12 deletions(-)
>
> diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
> index c5f2ac8f59..636c2c5697 100644
> --- a/qga/qapi-schema.json
> +++ b/qga/qapi-schema.json
> @@ -153,8 +153,6 @@
>  # @time: time of nanoseconds, relative to the Epoch of 1970-01-01 in
>  #     UTC.
>  #
> -# Returns: Nothing on success.
> -#
>  # Since: 1.5
>  ##
>  { 'command': 'guest-set-time',
> @@ -245,8 +243,6 @@
>  #
>  # @handle: filehandle returned by guest-file-open
>  #
> -# Returns: Nothing on success.
> -#
>  # Since: 0.15.0
>  ##
>  { 'command': 'guest-file-close',
> @@ -399,8 +395,6 @@
>  #
>  # @handle: filehandle returned by guest-file-open
>  #
> -# Returns: Nothing on success.
> -#
>  # Since: 0.15.0
>  ##
>  { 'command': 'guest-file-flush',
> @@ -1077,8 +1071,6 @@
>  # transmission, even if already crypt()d, to ensure it is 8-bit safe
>  # when passed as JSON.
>  #
> -# Returns: Nothing on success.
> -#
>  # Since: 2.3
>  ##
>  { 'command': 'guest-set-user-password',
> @@ -1602,8 +1594,6 @@
>  #
>  # @reset: ignore the existing content, set it with the given keys only
>  #
> -# Returns: Nothing on success.
> -#
>  # Since: 5.2
>  ##
>  { 'command': 'guest-ssh-add-authorized-keys',
> @@ -1622,8 +1612,6 @@
>  # @keys: the public keys to remove (in OpenSSH/sshd(8) authorized_keys
>  #     format)
>  #
> -# Returns: Nothing on success.
> -#
>  # Since: 5.2
>  ##
>  { 'command': 'guest-ssh-remove-authorized-keys',
> --
> 2.43.0
>
>

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Re: [PATCH 00/13] Subject: [PATCH 00/15] qapi: Improve command response documentation

[Konstantin Kostiuk]

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Hi Markus,

I will merge qga-related patches in my PULL.

Best Regards,
Konstantin Kostiuk.


On Tue, Feb 27, 2024 at 1:39 PM Markus Armbruster <armbru@redhat.com> wrote:

> We use doc comment "Returns" sections both for success and error
> response.  This series moves the latter to new "Errors" sections.
> Enables some cleanup, visible in the diffstat.q
>
> Markus Armbruster (13):
>   qapi: Memorize since & returns sections
>   qapi: Slightly clearer error message for invalid "Returns" section
>   qapi: New documentation section tag "Errors"
>   qapi: Move error documentation to new "Errors" sections
>   qapi: Delete useless "Returns" sections
>   qapi: Clean up "Returns" sections
>   qapi/yank: Tweak @yank's error description for consistency
>   qga/qapi-schema: Move error documentation to new "Errors" sections
>   qga/qapi-schema: Delete useless "Returns" sections
>   qga/qapi-schema: Clean up "Returns" sections
>   qga/qapi-schema: Tweak documentation of fsfreeze commands
>   qga/qapi-schema: Fix guest-set-memory-blocks documentation
>   qapi: Reject "Returns" section when command doesn't return anything
>
>  docs/devel/qapi-code-gen.rst               |  6 +-
>  qapi/block-core.json                       | 74 ++++++++--------------
>  qapi/block-export.json                     | 23 ++++---
>  qapi/block.json                            | 10 ++-
>  qapi/char.json                             |  6 --
>  qapi/dump.json                             |  2 -
>  qapi/machine-target.json                   | 37 ++++++-----
>  qapi/machine.json                          | 19 ++----
>  qapi/migration.json                        | 26 --------
>  qapi/misc-target.json                      |  3 -
>  qapi/misc.json                             | 25 +++-----
>  qapi/net.json                              | 17 +++--
>  qapi/qdev.json                             |  3 +-
>  qapi/qom.json                              |  6 +-
>  qapi/run-state.json                        |  5 +-
>  qapi/tpm.json                              |  2 -
>  qapi/transaction.json                      |  5 +-
>  qapi/ui.json                               | 17 +----
>  qapi/yank.json                             |  5 +-
>  qga/qapi-schema.json                       | 72 +++++++++------------
>  scripts/qapi/parser.py                     | 50 ++++++++++-----
>  tests/qapi-schema/doc-good.json            |  2 +
>  tests/qapi-schema/doc-good.out             |  2 +
>  tests/qapi-schema/doc-good.txt             |  6 ++
>  tests/qapi-schema/doc-invalid-return.err   |  2 +-
>  tests/qapi-schema/doc-invalid-return2.err  |  1 +
>  tests/qapi-schema/doc-invalid-return2.json |  7 ++
>  tests/qapi-schema/doc-invalid-return2.out  |  0
>  tests/qapi-schema/meson.build              |  1 +
>  29 files changed, 189 insertions(+), 245 deletions(-)
>  create mode 100644 tests/qapi-schema/doc-invalid-return2.err
>  create mode 100644 tests/qapi-schema/doc-invalid-return2.json
>  create mode 100644 tests/qapi-schema/doc-invalid-return2.out
>
> --
> 2.43.0
>
>

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