linux-kselftest-next-5.15-rc1 This Kselftest update for Linux 5.15-rc1 consists of fixes to build and test failures. -- openat2 test failure for O_LARGEFILE flag on ARM64 -- x86 test build failures related to glibc 2.34 adding support for variable sized MINSIGSTKSZ and SIGSTKSZ -- removing obsolete configs in sync and cpufreq config files -- minor spelling and duplicate header include cleanups