[PATCH 1/2] selftests: KVM: Fix compiler warning in demand_paging_test

Oliver Upton
2021-09-21T02:01:06Z

Building demand_paging_test.c with clang throws the following warning:

>> demand_paging_test.c:182:7: error: logical not is only applied to the left hand side of this bitwise operator [-Werror,-Wlogical-not-parentheses]
if (!pollfd[0].revents & POLLIN)

Silence the warning by placing the bitwise operation within parentheses.

Signed-off-by: Oliver Upton <oupton@google.com>
---
tools/testing/selftests/kvm/demand_paging_test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kvm/demand_paging_test.c b/tools/testing/selftests/kvm/demand_paging_test.c
index e79c1b64977f..10edae425ab3 100644
--- a/tools/testing/selftests/kvm/demand_paging_test.c
+++ b/tools/testing/selftests/kvm/demand_paging_test.c
@@ -179,7 +179,7 @@ static void *uffd_handler_thread_fn(void *arg)
return NULL;
}

- if (!pollfd[0].revents & POLLIN)
+ if (!(pollfd[0].revents & POLLIN))
continue;

r = read(uffd, &msg, sizeof(msg));
--
2.33.0.464.g1972c5931b-goog