[PATCH] selftests: timers: clocksource-switch: Adapt progress to kselftest framework

[Geert Uytterhoeven]

When adapting the test to the kselftest framework, a few printf() calls
indicating test progress were not updated.

Fix this by replacing these printf() calls by ksft_print_msg() calls.

Fixes: ce7d101750ff8450 ("selftests: timers: clocksource-switch: adapt to 
kselftest framework")
Signed-off-by: Geert Uytterhoeven <geert+rene...@glider.be>
---
When just running the test, the output looks like:

    # Validating clocksource arch_sys_counter
    TAP version 13
    1..12
    ok 1 CLOCK_REALTIME
    ...
    # Validating clocksource ffca0000.timer
    TAP version 13
    1..12
    ok 1 CLOCK_REALTIME
    ...

When redirecting the test output to a file, the progress prints are not
interspersed with the test output, but collated at the end:

    TAP version 13
    1..12
    ok 1 CLOCK_REALTIME
    ...
    TAP version 13
    1..12
    ok 1 CLOCK_REALTIME
    ...
    # Totals: pass:6 fail:0 xfail:0 xpass:0 skip:6 error:0
    # Validating clocksource arch_sys_counter
    # Validating clocksource ffca0000.timer
    ...

This makes it hard to match the test results with the timer under test.
Is there a way to fix this?  The test does use fork().

Thanks!
---
 tools/testing/selftests/timers/clocksource-switch.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/timers/clocksource-switch.c 
b/tools/testing/selftests/timers/clocksource-switch.c
index c5264594064c8516..83faa4e354e389c2 100644
--- a/tools/testing/selftests/timers/clocksource-switch.c
+++ b/tools/testing/selftests/timers/clocksource-switch.c
@@ -156,8 +156,8 @@ int main(int argc, char **argv)
        /* Check everything is sane before we start switching asynchronously */
        if (do_sanity_check) {
                for (i = 0; i < count; i++) {
-                       printf("Validating clocksource %s\n",
-                               clocksource_list[i]);
+                       ksft_print_msg("Validating clocksource %s\n",
+                                       clocksource_list[i]);
                        if (change_clocksource(clocksource_list[i])) {
                                status = -1;
                                goto out;
@@ -169,7 +169,7 @@ int main(int argc, char **argv)
                }
        }
 
-       printf("Running Asynchronous Switching Tests...\n");
+       ksft_print_msg("Running Asynchronous Switching Tests...\n");
        pid = fork();
        if (!pid)
                return run_tests(runtime);
-- 
2.34.1