On Sat, Sep 26, 2026 at 10:08:17AM +0900, Hajime Tazaki wrote: > The kselftest runner currently uses `cd -` to restore its working > directory after running a test. > > This is not supported by the minimal BusyBox hush shell used by some > NOMMU targets. Store the original directory explicitly and restore it > with a quoted path instead. > > This also avoids printing the directory change performed by `cd -` and > handles paths containing whitespace correctly. > > Cc: Shuah Khan <[email protected]> > Cc: Kees Cook <[email protected]> > Cc: Andy Lutomirski <[email protected]> > Cc: Will Drewry <[email protected]> > Cc: Mark Brown <[email protected]> > Cc: Brendan Jackman <[email protected]> > Cc: Hangbin Liu <[email protected]> > Cc: "Ricardo B. Marliere" <[email protected]> > Cc: [email protected] > Cc: [email protected] > Cc: [email protected] > Signed-off-by: Hajime Tazaki <[email protected]>
NACK. https://pubs.opengroup.org/onlinepubs/009695099/utilities/cd.html - When a hyphen is used as the operand, this shall be equivalent to the command: cd "$OLDPWD" && pwd which changes to the previous working directory and then writes its name. If you're running selftests on !POSIX compliant shells, that's a you-issue. Fix the shell, or use something decent. -- Pedro
