Re: [PATCH v2] selftests/user_events: Fix failures when user_events is not installed

[Mark Brown]

On Fri, Sep 08, 2023 at 08:19:16PM +0000, Beau Belgrave wrote:

> Add common methods to detect if tracefs and user_events is enabled. If
> either is not enabled skip the test. If tracefs is enabled, but is not
> mounted, mount tracefs and fail if there were any errors. Fail if not
> run as root.

This will leave tracefs mounted if it was not already mounted which is a
change to the system configuration.  While that may happen if things go
wrong during a test we should probably avoid actively doing this and
either only skip or try to umount at the end of the test if we mounted
ourselves.

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