On Thu, 14 Apr 2022 12:30:31 +0200 Thomas Huth <thuth@xxxxxxxxxx> wrote: > When compiling kvm_page_table_test.c, I get this compiler warning > with gcc 11.2: > > kvm_page_table_test.c: In function 'pre_init_before_test': > ../../../../tools/include/linux/kernel.h:44:24: warning: comparison of > distinct pointer types lacks a cast > 44 | (void) (&_max1 == &_max2); \ > | ^~ > kvm_page_table_test.c:281:21: note: in expansion of macro 'max' > 281 | alignment = max(0x100000, alignment); > | ^~~ > > Fix it by adjusting the type of the absolute value. > > Signed-off-by: Thomas Huth <thuth@xxxxxxxxxx> Reviewed-by: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx> > --- > tools/testing/selftests/kvm/kvm_page_table_test.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/kvm/kvm_page_table_test.c b/tools/testing/selftests/kvm/kvm_page_table_test.c > index ba1fdc3dcf4a..2c4a7563a4f8 100644 > --- a/tools/testing/selftests/kvm/kvm_page_table_test.c > +++ b/tools/testing/selftests/kvm/kvm_page_table_test.c > @@ -278,7 +278,7 @@ static struct kvm_vm *pre_init_before_test(enum vm_guest_mode mode, void *arg) > else > guest_test_phys_mem = p->phys_offset; > #ifdef __s390x__ > - alignment = max(0x100000, alignment); > + alignment = max(0x100000UL, alignment); > #endif > guest_test_phys_mem = align_down(guest_test_phys_mem, alignment); >
