---
tools/testing/selftests/kvm/arm/guest-driver.c | 20 ++++++++++++++------
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/kvm/arm/guest-driver.c b/tools/testing/selftests/kvm/arm/guest-driver.c
index b757e55..efd7009 100644
--- a/tools/testing/selftests/kvm/arm/guest-driver.c
+++ b/tools/testing/selftests/kvm/arm/guest-driver.c
@@ -238,14 +238,22 @@ static void kvm_cpu_exec(bool (*test)(struct kvm_run *kvm_run, int vcpu_fd))
} while (!handle_mmio(kvm_run, test));
}
-static void usage(int argc, const char *argv[])
-{
- errx(EXIT_SETUPFAIL, "Usage: %s <testname>", argv[0]);
-}
-
/* Linker-generated symbols for GUEST_TEST() macros */
extern struct test __start_tests[], __stop_tests[];
+static int usage(int argc, const char *argv[])
+{
+ struct test *i;
+
+ printf("Usage: %s <testname>\n\nAvailable tests:\n", argv[0]);
+
+ for (i = __start_tests; i < __stop_tests; i++) {
+ printf(" %s\n", i->name);
+ }
+
+ return EXIT_SETUPFAIL;
+}
+
int main(int argc, const char *argv[])
{
struct test *i;
@@ -254,7 +262,7 @@ int main(int argc, const char *argv[])
unsigned long start;
if (argc != 2)
- usage(argc, argv);
+ return usage(argc, argv);
for (i = __start_tests; i < __stop_tests; i++) {
if (strcmp(i->name, argv[1]) == 0) {
--
1.7.9.5
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