[PATCH mm-unstable v1 3/4] selftests/vm: cow: fix compile warning on 32bit

David Hildenbrand
2022-12-05T19:41:54Z

The compiler complains about the conversion of a pointer to an int of
different width.

Fixes: 6f1405efc61b ("selftests/vm: anon_cow: add R/O longterm tests via gup_test")
Signed-off-by: David Hildenbrand <david@redhat.com>
---
tools/testing/selftests/vm/cow.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/vm/cow.c b/tools/testing/selftests/vm/cow.c
index 73e05b52c49e..26f6ea3079e2 100644
--- a/tools/testing/selftests/vm/cow.c
+++ b/tools/testing/selftests/vm/cow.c
@@ -650,7 +650,7 @@ static void do_test_ro_pin(char *mem, size_t size, enum ro_pin_test test,
}

/* Take a R/O pin. This should trigger unsharing. */
- args.addr = (__u64)mem;
+ args.addr = (__u64)(uintptr_t)mem;
args.size = size;
args.flags = fast ? PIN_LONGTERM_TEST_FLAG_USE_FAST : 0;
ret = ioctl(gup_fd, PIN_LONGTERM_TEST_START, &args);
@@ -669,7 +669,7 @@ static void do_test_ro_pin(char *mem, size_t size, enum ro_pin_test test,
* Read back the content via the pin to the temporary buffer and
* test if we observed the modification.
*/
- tmp_val = (__u64)tmp;
+ tmp_val = (__u64)(uintptr_t)tmp;
ret = ioctl(gup_fd, PIN_LONGTERM_TEST_READ, &tmp_val);
if (ret)
ksft_test_result_fail("PIN_LONGTERM_TEST_READ failed\n");
--
2.38.1