diff mbox series

kvm: selftest: fix noop test in guest_memfd_test.c

Message ID 20241024095956.3668818-1-roypat@amazon.co.uk (mailing list archive)
State New
Headers show
Series kvm: selftest: fix noop test in guest_memfd_test.c | expand

Commit Message

Patrick Roy Oct. 24, 2024, 9:59 a.m. UTC
The loop in test_create_guest_memfd_invalid that is supposed to test
that nothing is accepted as a valid flag to KVM_CREATE_GUEST_MEMFD was
initializing `flag` as 0 instead of BIT(0). This caused the loop to
immediately exit instead of iterating over BIT(0), BIT(1), ... .

Fixes: 8a89efd43423 ("KVM: selftests: Add basic selftest for guest_memfd()")
Signed-off-by: Patrick Roy <roypat@amazon.co.uk>
---
 tools/testing/selftests/kvm/guest_memfd_test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Gowans, James Oct. 24, 2024, 10:19 a.m. UTC | #1
On Thu, 2024-10-24 at 10:59 +0100, Patrick Roy wrote:
> The loop in test_create_guest_memfd_invalid that is supposed to test
> that nothing is accepted as a valid flag to KVM_CREATE_GUEST_MEMFD was
> initializing `flag` as 0 instead of BIT(0). This caused the loop to
> immediately exit instead of iterating over BIT(0), BIT(1), ... .
> 
> Fixes: 8a89efd43423 ("KVM: selftests: Add basic selftest for guest_memfd()")
> Signed-off-by: Patrick Roy <roypat@amazon.co.uk>
> ---
>  tools/testing/selftests/kvm/guest_memfd_test.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/kvm/guest_memfd_test.c b/tools/testing/selftests/kvm/guest_memfd_test.c
> index ba0c8e9960358..ce687f8d248fc 100644
> --- a/tools/testing/selftests/kvm/guest_memfd_test.c
> +++ b/tools/testing/selftests/kvm/guest_memfd_test.c
> @@ -134,7 +134,7 @@ static void test_create_guest_memfd_invalid(struct kvm_vm *vm)
>  			    size);
>  	}
>  
> -	for (flag = 0; flag; flag <<= 1) {
> +	for (flag = BIT(0); flag; flag <<= 1) {
>  		fd = __vm_create_guest_memfd(vm, page_size, flag);
>  		TEST_ASSERT(fd == -1 && errno == EINVAL,
>  			    "guest_memfd() with flag '0x%lx' should fail with EINVAL",

Reviewed-by: James Gowans <jgowans@amazon.com>
diff mbox series

Patch

diff --git a/tools/testing/selftests/kvm/guest_memfd_test.c b/tools/testing/selftests/kvm/guest_memfd_test.c
index ba0c8e9960358..ce687f8d248fc 100644
--- a/tools/testing/selftests/kvm/guest_memfd_test.c
+++ b/tools/testing/selftests/kvm/guest_memfd_test.c
@@ -134,7 +134,7 @@  static void test_create_guest_memfd_invalid(struct kvm_vm *vm)
 			    size);
 	}
 
-	for (flag = 0; flag; flag <<= 1) {
+	for (flag = BIT(0); flag; flag <<= 1) {
 		fd = __vm_create_guest_memfd(vm, page_size, flag);
 		TEST_ASSERT(fd == -1 && errno == EINVAL,
 			    "guest_memfd() with flag '0x%lx' should fail with EINVAL",