Author: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Forwarded: no
Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1770480
Subject: make preadwritev2 invalid flags tests unsupported
 New kernels allow new flags for preadv2 and pwritev2. Instead of failing
 and exiting when those test succeeds or fail with an error different from
 unsupported, fail with unsupported, which is equivalent to skipping the
 test instead of failing it.
Index: glibc-2.27/misc/tst-preadvwritev2-common.c
===================================================================
--- glibc-2.27.orig/misc/tst-preadvwritev2-common.c
+++ glibc-2.27/misc/tst-preadvwritev2-common.c
@@ -42,14 +42,14 @@ do_test_with_invalid_flags (void)
   char buf[32];
   const struct iovec vec = { .iov_base = buf, .iov_len = sizeof (buf) };
   if (preadv2 (temp_fd, &vec, 1, 0, invalid_flag) != -1)
-    FAIL_EXIT1 ("preadv2 did not fail with an invalid flag");
+    FAIL_UNSUPPORTED ("preadv2 did not fail with an invalid flag");
   if (errno != ENOTSUP)
-    FAIL_EXIT1 ("preadv2 failure did not set errno to ENOTSUP (%d)", errno);
+    FAIL_UNSUPPORTED ("preadv2 failure did not set errno to ENOTSUP (%d)", errno);
 
   /* This might fail for compat syscall (32 bits running on 64 bits kernel)
      due a kernel issue.  */
   if (pwritev2 (temp_fd, &vec, 1, 0, invalid_flag) != -1)
-    FAIL_EXIT1 ("pwritev2 did not fail with an invalid flag");
+    FAIL_UNSUPPORTED ("pwritev2 did not fail with an invalid flag");
   if (errno != ENOTSUP)
-    FAIL_EXIT1 ("pwritev2 failure did not set errno to ENOTSUP (%d)", errno);
+    FAIL_UNSUPPORTED ("pwritev2 failure did not set errno to ENOTSUP (%d)", errno);
 }