[PATCH v1 1/1] lib/vsprintf: Use EXPORT_SYMBOL_IF_KUNIT() to export symbols

[Andy Shevchenko]

Replace EXPORT_SYMBOL_FOR_MODULES() with EXPORT_SYMBOL_IF_KUNIT()
to mark the symbols as visible only if CONFIG_KUNIT is enabled.

Kunit test should import the namespace EXPORTED_FOR_KUNIT_TESTING to
use these marked symbols. This is the standard way for all KUnit
tests.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
 lib/tests/printf_kunit.c | 1 +
 lib/vsprintf.c           | 8 +++++---
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/lib/tests/printf_kunit.c b/lib/tests/printf_kunit.c
index eccf041ebd56..290d59b22c29 100644
--- a/lib/tests/printf_kunit.c
+++ b/lib/tests/printf_kunit.c
@@ -876,3 +876,4 @@ kunit_test_suite(printf_test_suite);
 MODULE_AUTHOR("Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>");
 MODULE_DESCRIPTION("Test cases for printf facility");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 1d95ab9314bf..83d22c53a81d 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -25,6 +25,7 @@
 #include <linux/module.h>	/* for KSYM_SYMBOL_LEN */
 #include <linux/types.h>
 #include <linux/string.h>
+#include <linux/string_helpers.h>
 #include <linux/ctype.h>
 #include <linux/hex.h>
 #include <linux/kernel.h>
@@ -54,12 +55,13 @@
 #include <asm/byteorder.h>	/* cpu_to_le16 */
 #include <linux/unaligned.h>
 
-#include <linux/string_helpers.h>
+#include <kunit/visibility.h>
+
 #include "kstrtox.h"
 
 /* Disable pointer hashing if requested */
 bool no_hash_pointers __ro_after_init;
-EXPORT_SYMBOL_FOR_MODULES(no_hash_pointers, "printf_kunit");
+EXPORT_SYMBOL_IF_KUNIT(no_hash_pointers);
 
 /*
  * Hashed pointers policy selected by "hash_pointers=..." boot param
@@ -850,7 +852,7 @@ static char *default_pointer(char *buf, char *end, const void *ptr,
 }
 
 int kptr_restrict __read_mostly;
-EXPORT_SYMBOL_FOR_MODULES(kptr_restrict, "printf_kunit");
+EXPORT_SYMBOL_IF_KUNIT(kptr_restrict);
 
 static noinline_for_stack
 char *restricted_pointer(char *buf, char *end, const void *ptr,
-- 
2.50.1