Some architectures don't support userfaultfd. Skip running the whole
test on them instead of registering the failure.

Reported-by: Ryan Roberts <[email protected]>
Closes: https://lore.kernel.org/all/[email protected]
Fixes: 46fd75d4a3c9 ("selftests: mm: add pagemap ioctl tests")
Signed-off-by: Muhammad Usama Anjum <[email protected]>
---
 tools/testing/selftests/mm/pagemap_ioctl.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/mm/pagemap_ioctl.c 
b/tools/testing/selftests/mm/pagemap_ioctl.c
index 0161fb49fc6ef..f8685a2ea07e6 100644
--- a/tools/testing/selftests/mm/pagemap_ioctl.c
+++ b/tools/testing/selftests/mm/pagemap_ioctl.c
@@ -94,19 +94,19 @@ int init_uffd(void)
 
        uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK | 
UFFD_USER_MODE_ONLY);
        if (uffd == -1)
-               ksft_exit_fail_msg("uffd syscall failed\n");
+               return uffd;
 
        uffdio_api.api = UFFD_API;
        uffdio_api.features = UFFD_FEATURE_WP_UNPOPULATED | 
UFFD_FEATURE_WP_ASYNC |
                              UFFD_FEATURE_WP_HUGETLBFS_SHMEM;
        if (ioctl(uffd, UFFDIO_API, &uffdio_api))
-               ksft_exit_fail_msg("UFFDIO_API\n");
+               return -1;
 
        if (!(uffdio_api.api & UFFDIO_REGISTER_MODE_WP) ||
            !(uffdio_api.features & UFFD_FEATURE_WP_UNPOPULATED) ||
            !(uffdio_api.features & UFFD_FEATURE_WP_ASYNC) ||
            !(uffdio_api.features & UFFD_FEATURE_WP_HUGETLBFS_SHMEM))
-               ksft_exit_fail_msg("UFFDIO_API error %llu\n", uffdio_api.api);
+               return -1;
 
        return 0;
 }
@@ -1479,6 +1479,10 @@ int main(void)
        struct stat sbuf;
 
        ksft_print_header();
+
+       if (init_uffd())
+               return ksft_exit_pass();
+
        ksft_set_plan(115);
 
        page_size = getpagesize();
@@ -1488,9 +1492,6 @@ int main(void)
        if (pagemap_fd < 0)
                return -EINVAL;
 
-       if (init_uffd())
-               ksft_exit_fail_msg("uffd init failed\n");
-
        /* 1. Sanity testing */
        sanity_tests_sd();
 
-- 
2.42.0

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