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Message-ID: <175838567551.709179.5619760179104074372.tip-bot2@tip-bot2>
Date: Sat, 20 Sep 2025 16:27:55 -0000
From: tip-bot2 for André Almeida <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: andrealmeid@...lia.com, Thomas Gleixner <tglx@...utronix.de>,
x86@...nel.org, linux-kernel@...r.kernel.org
Subject:
[tip: locking/futex] selftests: kselftest: Create ksft_print_dbg_msg()
The following commit has been merged into the locking/futex branch of tip:
Commit-ID: f2662ec26b26adb71783fa5e5ee75aff6f18a940
Gitweb: https://git.kernel.org/tip/f2662ec26b26adb71783fa5e5ee75aff6f18a940
Author: André Almeida <andrealmeid@...lia.com>
AuthorDate: Wed, 17 Sep 2025 18:21:40 -03:00
Committer: Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Sat, 20 Sep 2025 18:11:53 +02:00
selftests: kselftest: Create ksft_print_dbg_msg()
Create ksft_print_dbg_msg() so testers can enable extra debug messages
when running a test with the flag -d.
Signed-off-by: André Almeida <andrealmeid@...lia.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
tools/testing/selftests/kselftest.h | 14 ++++++++++++++
tools/testing/selftests/kselftest_harness.h | 13 +++++++++----
2 files changed, 23 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h
index c3b6d26..8deeb4b 100644
--- a/tools/testing/selftests/kselftest.h
+++ b/tools/testing/selftests/kselftest.h
@@ -54,6 +54,7 @@
#include <stdlib.h>
#include <unistd.h>
#include <stdarg.h>
+#include <stdbool.h>
#include <string.h>
#include <stdio.h>
#include <sys/utsname.h>
@@ -104,6 +105,7 @@ struct ksft_count {
static struct ksft_count ksft_cnt;
static unsigned int ksft_plan;
+static bool ksft_debug_enabled;
static inline unsigned int ksft_test_num(void)
{
@@ -175,6 +177,18 @@ static inline __printf(1, 2) void ksft_print_msg(const char *msg, ...)
va_end(args);
}
+static inline void ksft_print_dbg_msg(const char *msg, ...)
+{
+ va_list args;
+
+ if (!ksft_debug_enabled)
+ return;
+
+ va_start(args, msg);
+ ksft_print_msg(msg, args);
+ va_end(args);
+}
+
static inline void ksft_perror(const char *msg)
{
ksft_print_msg("%s: %s (%d)\n", msg, strerror(errno), errno);
diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
index 2925e47..ffefd27 100644
--- a/tools/testing/selftests/kselftest_harness.h
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -1091,7 +1091,7 @@ static int test_harness_argv_check(int argc, char **argv)
{
int opt;
- while ((opt = getopt(argc, argv, "hlF:f:V:v:t:T:r:")) != -1) {
+ while ((opt = getopt(argc, argv, "dhlF:f:V:v:t:T:r:")) != -1) {
switch (opt) {
case 'f':
case 'F':
@@ -1104,12 +1104,16 @@ static int test_harness_argv_check(int argc, char **argv)
case 'l':
test_harness_list_tests();
return KSFT_SKIP;
+ case 'd':
+ ksft_debug_enabled = true;
+ break;
case 'h':
default:
fprintf(stderr,
- "Usage: %s [-h|-l] [-t|-T|-v|-V|-f|-F|-r name]\n"
+ "Usage: %s [-h|-l|-d] [-t|-T|-v|-V|-f|-F|-r name]\n"
"\t-h print help\n"
"\t-l list all tests\n"
+ "\t-d enable debug prints\n"
"\n"
"\t-t name include test\n"
"\t-T name exclude test\n"
@@ -1142,8 +1146,9 @@ static bool test_enabled(int argc, char **argv,
int opt;
optind = 1;
- while ((opt = getopt(argc, argv, "F:f:V:v:t:T:r:")) != -1) {
- has_positive |= islower(opt);
+ while ((opt = getopt(argc, argv, "dF:f:V:v:t:T:r:")) != -1) {
+ if (opt != 'd')
+ has_positive |= islower(opt);
switch (tolower(opt)) {
case 't':
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