mirror of https://gitee.com/openkylin/linux.git
7af29141a3
This is a bug that has been present since the first version of this
code.
Using [] as a default parameter is dangerous, since it's mutable.
Example using the REPL:
>>> def bad(param = []):
... param.append(len(param))
... print(param)
...
>>> bad()
[0]
>>> bad()
[0, 1]
This wasn't a concern in the past since it would just keep appending the
same values to it.
E.g. before, `args` would just grow in size like:
[mem=1G', 'console=tty']
[mem=1G', 'console=tty', mem=1G', 'console=tty']
But with now filter_glob, this is more dangerous, e.g.
run_kernel(filter_glob='my-test*') # default modified here
run_kernel() # filter_glob still applies here!
That earlier `filter_glob` will affect all subsequent calls that don't
specify `args`.
Note: currently the kunit tool only calls run_kernel() at most once, so
it's not possible to trigger any negative side-effects right now.
Fixes:
|
||
|---|---|---|
| .. | ||
| configs | ||
| test_data | ||
| .gitignore | ||
| kunit.py | ||
| kunit_config.py | ||
| kunit_json.py | ||
| kunit_kernel.py | ||
| kunit_parser.py | ||
| kunit_tool_test.py | ||