DPRINT_IN_SIGNAL_BUF_SIZE   24 tools/testing/selftests/x86/pkey-helpers.h extern char dprint_in_signal_buffer[DPRINT_IN_SIGNAL_BUF_SIZE];
DPRINT_IN_SIGNAL_BUF_SIZE   65 tools/testing/selftests/x86/protection_keys.c char dprint_in_signal_buffer[DPRINT_IN_SIGNAL_BUF_SIZE];