selftests/mm: uffd-common: use kselftest framework

Update err() and errexit() to use ksft_print_msg() and ksft_exit_fail().

This is preparatory change required to update userfaulfd tests to use
kselftest framework.

Link: https://lore.kernel.org/20260511162840.375890-19-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Donet Tom <donettom@linux.ibm.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Liam Howlett <liam@infradead.org>
Cc: Li Wang <li.wang@linux.dev>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Luiz Capitulino <luizcap@redhat.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Sarthak Sharma <sarthak.sharma@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/tools/testing/selftests/mm/uffd-common.h b/tools/testing/selftests/mm/uffd-common.h
index 844a85ab31eb2fce357b610a2c4a54a50153f6ca..0723843a7626b1466a9160e82769be519a5aaca4 100644 (file)
--- a/tools/testing/selftests/mm/uffd-common.h
+++ b/tools/testing/selftests/mm/uffd-common.h
@@ -40,21 +40,20 @@
 
 #define UFFD_FLAGS     (O_CLOEXEC | O_NONBLOCK | UFFD_USER_MODE_ONLY)
 
-#define _err(fmt, ...)                                         \
-       do {                                                    \
-               int ret = errno;                                \
-               fprintf(stderr, "ERROR: " fmt, ##__VA_ARGS__);  \
-               fprintf(stderr, " (errno=%d, @%s:%d)\n",        \
-                       ret, __FILE__, __LINE__);               \
+#define _err(fmt, ...)                                                 \
+       do {                                                            \
+               int ret = errno;                                        \
+               ksft_print_msg("ERROR: " fmt " (errno=%d, @%s:%d)\n",   \
+                              ##__VA_ARGS__, ret, __FILE__, __LINE__); \
        } while (0)
 
-#define errexit(exitcode, fmt, ...)            \
+#define errexit(fmt, ...)                      \
        do {                                    \
                _err(fmt, ##__VA_ARGS__);       \
-               exit(exitcode);                 \
+               ksft_exit_fail();               \
        } while (0)
 
-#define err(fmt, ...) errexit(1, fmt, ##__VA_ARGS__)
+#define err(fmt, ...) errexit(fmt, ##__VA_ARGS__)
 
 struct uffd_global_test_opts {
        unsigned long nr_parallel, nr_pages, nr_pages_per_cpu, page_size;