Documentation: dev-tools: Clarify requirements for result description

Currently the KTAP specification says that a test result line is

<result> <number> [<description>][ # [<directive>] [<diagnostic data>]]

and the description of a test can be "any sequence of words
(can't include #)" which specifies that there may be more than
one word but does not specify anything other than those words
which might be used to separate the words which probably isn't
what we want. Given that practically we have tests using a range
of separators for words including combinations of spaces and
combinations of other symbols like underscores or punctuation
let's just clarify that the description can contain any character
other than # (marking the start of the directive/diagnostic) or
newline (marking the end of this test result).

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

Documentation: dev-tools: use literal block instead of code-block

KTAP Specification: Change code-block directives to straightforward
literal blocks since the blocks do not contain code.

Suggested-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Reviewed-by: David Gow <davidgow@google.com>
Link: https://lore.kernel.org/r/20220316202622.324866-3-frowand.list@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Docs: ktap: add code-block type

Fix multiple "code-block::" warnings by adding "none" as the type of
code-block. Mends these warnings:

Documentation/dev-tools/ktap.rst:71: WARNING: Error in "code-block" directive:
1 argument(s) required, 0 supplied.
Documentation/dev-tools/ktap.rst:120: WARNING: Error in "code-block" directive:
1 argument(s) required, 0 supplied.
Documentation/dev-tools/ktap.rst:126: WARNING: Error in "code-block" directive:
1 argument(s) required, 0 supplied.
Documentation/dev-tools/ktap.rst:132: WARNING: Error in "code-block" directive:
1 argument(s) required, 0 supplied.
Documentation/dev-tools/ktap.rst:139: WARNING: Error in "code-block" directive:
1 argument(s) required, 0 supplied.
Documentation/dev-tools/ktap.rst:145: WARNING: Error in "code-block" directive:
1 argument(s) required, 0 supplied.
Documentation/dev-tools/ktap.rst:195: WARNING: Error in "code-block" directive:
1 argument(s) required, 0 supplied.
Documentation/dev-tools/ktap.rst:208: WARNING: Error in "code-block" directive:
1 argument(s) required, 0 supplied.
Documentation/dev-tools/ktap.rst:238: WARNING: Error in "code-block" directive:
1 argument(s) required, 0 supplied.

Fixes: a32fa6b2e8b4 ("Documentation: dev-tools: Add KTAP specification")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Rae Moar <rmoar@google.com>
Cc: David Gow <davidgow@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Reviewed-by: David Gow <davidgow@google.com>
Link: https://lore.kernel.org/r/20220131003637.14274-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation: dev-tools: clarify KTAP specification wording

Add the spec version to the title line.

Explain likely source of "Unknown lines".

"Unknown lines" in nested tests are optionally indented.

Add "Unknown lines" items to differences between TAP & KTAP list

Convert "Major differences between TAP and KTAP" from a bullet list
to a table. The bullet list was being formatted as a single
paragraph.

Reviewed-by: Tim Bird <Tim.Bird@sony.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Link: https://lore.kernel.org/r/20220210233630.3304495-1-frowand.list@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation: dev-tools: Add KTAP specification

It does not make any significant additions or changes other than those
already in use in the kernel: additional features can be added as they
become necessary and used.

[1]: https://testanything.org/tap-version-13-specification.html

Signed-off-by: Rae Moar <rmoar@google.com>
Co-developed-by: David Gow <davidgow@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20211207190251.18426-1-davidgow@google.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>