Sandipan Das <sandi...@linux.ibm.com> writes: > diff --git a/tools/testing/selftests/powerpc/mm/pkey_siginfo.c > b/tools/testing/selftests/powerpc/mm/pkey_siginfo.c > new file mode 100644 > index 0000000000000..58605c53d495d > --- /dev/null > +++ b/tools/testing/selftests/powerpc/mm/pkey_siginfo.c > @@ -0,0 +1,332 @@ ... > + > +static void *protect(void *p) > +{ > + unsigned long rights; > + unsigned int *base; > + size_t size; > + int tid, i; > + > + tid = gettid();
pkey_siginfo.c: In function 'protect': pkey_siginfo.c:103:8: error: implicit declaration of function 'gettid' [-Werror=implicit-function-declaration] tid = gettid(); ^ On Ubuntu 18.04 at least. cheers