Previously KUnit assumed that printk would always be present, which is not a valid assumption to make. Fix that by removing call to vprintk_emit, and calling printk directly.
Reported-by: Randy Dunlap <rdun...@infradead.org> Link: https://lore.kernel.org/linux-kselftest/0352fae9-564f-4a97-715a-fabe01625...@kernel.org/T/#t Cc: Stephen Rothwell <s...@canb.auug.org.au> Cc: Sergey Senozhatsky <sergey.senozhatsky.w...@gmail.com> Signed-off-by: Brendan Higgins <brendanhigg...@google.com> --- include/kunit/test.h | 11 ++++----- kunit/test.c | 57 +++++--------------------------------------- 2 files changed, 11 insertions(+), 57 deletions(-) diff --git a/include/kunit/test.h b/include/kunit/test.h index 8b7eb03d4971..efad2eacd6ba 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -339,9 +339,8 @@ static inline void *kunit_kzalloc(struct kunit *test, size_t size, gfp_t gfp) void kunit_cleanup(struct kunit *test); -void __printf(3, 4) kunit_printk(const char *level, - const struct kunit *test, - const char *fmt, ...); +#define kunit_print_level(KERN_LEVEL, test, fmt, ...) \ + printk(KERN_LEVEL "\t# %s: " fmt, (test)->name, ##__VA_ARGS__) /** * kunit_info() - Prints an INFO level message associated with @test. @@ -353,7 +352,7 @@ void __printf(3, 4) kunit_printk(const char *level, * Takes a variable number of format parameters just like printk(). */ #define kunit_info(test, fmt, ...) \ - kunit_printk(KERN_INFO, test, fmt, ##__VA_ARGS__) + kunit_print_level(KERN_INFO, test, fmt, ##__VA_ARGS__) /** * kunit_warn() - Prints a WARN level message associated with @test. @@ -364,7 +363,7 @@ void __printf(3, 4) kunit_printk(const char *level, * Prints a warning level message. */ #define kunit_warn(test, fmt, ...) \ - kunit_printk(KERN_WARNING, test, fmt, ##__VA_ARGS__) + kunit_print_level(KERN_WARNING, test, fmt, ##__VA_ARGS__) /** * kunit_err() - Prints an ERROR level message associated with @test. @@ -375,7 +374,7 @@ void __printf(3, 4) kunit_printk(const char *level, * Prints an error level message. */ #define kunit_err(test, fmt, ...) \ - kunit_printk(KERN_ERR, test, fmt, ##__VA_ARGS__) + kunit_print_level(KERN_ERR, test, fmt, ##__VA_ARGS__) /** * KUNIT_SUCCEED() - A no-op expectation. Only exists for code clarity. diff --git a/kunit/test.c b/kunit/test.c index b2ca9b94c353..c83c0fa59cbd 100644 --- a/kunit/test.c +++ b/kunit/test.c @@ -16,36 +16,12 @@ static void kunit_set_failure(struct kunit *test) WRITE_ONCE(test->success, false); } -static int kunit_vprintk_emit(int level, const char *fmt, va_list args) -{ - return vprintk_emit(0, level, NULL, 0, fmt, args); -} - -static int kunit_printk_emit(int level, const char *fmt, ...) -{ - va_list args; - int ret; - - va_start(args, fmt); - ret = kunit_vprintk_emit(level, fmt, args); - va_end(args); - - return ret; -} - -static void kunit_vprintk(const struct kunit *test, - const char *level, - struct va_format *vaf) -{ - kunit_printk_emit(level[1] - '0', "\t# %s: %pV", test->name, vaf); -} - static void kunit_print_tap_version(void) { static bool kunit_has_printed_tap_version; if (!kunit_has_printed_tap_version) { - kunit_printk_emit(LOGLEVEL_INFO, "TAP version 14\n"); + pr_info("TAP version 14\n"); kunit_has_printed_tap_version = true; } } @@ -64,10 +40,8 @@ static size_t kunit_test_cases_len(struct kunit_case *test_cases) static void kunit_print_subtest_start(struct kunit_suite *suite) { kunit_print_tap_version(); - kunit_printk_emit(LOGLEVEL_INFO, "\t# Subtest: %s\n", suite->name); - kunit_printk_emit(LOGLEVEL_INFO, - "\t1..%zd\n", - kunit_test_cases_len(suite->test_cases)); + pr_info("\t# Subtest: %s\n", suite->name); + pr_info("\t1..%zd\n", kunit_test_cases_len(suite->test_cases)); } static void kunit_print_ok_not_ok(bool should_indent, @@ -87,9 +61,7 @@ static void kunit_print_ok_not_ok(bool should_indent, else ok_not_ok = "not ok"; - kunit_printk_emit(LOGLEVEL_INFO, - "%s%s %zd - %s\n", - indent, ok_not_ok, test_number, description); + pr_info("%s%s %zd - %s\n", indent, ok_not_ok, test_number, description); } static bool kunit_suite_has_succeeded(struct kunit_suite *suite) @@ -133,11 +105,11 @@ static void kunit_print_string_stream(struct kunit *test, kunit_err(test, "Could not allocate buffer, dumping stream:\n"); list_for_each_entry(fragment, &stream->fragments, node) { - kunit_err(test, fragment->fragment); + kunit_err(test, "%s", fragment->fragment); } kunit_err(test, "\n"); } else { - kunit_err(test, buf); + kunit_err(test, "%s", buf); kunit_kfree(test, buf); } } @@ -504,20 +476,3 @@ void kunit_cleanup(struct kunit *test) kunit_resource_free(test, resource); } } - -void kunit_printk(const char *level, - const struct kunit *test, - const char *fmt, ...) -{ - struct va_format vaf; - va_list args; - - va_start(args, fmt); - - vaf.fmt = fmt; - vaf.va = &args; - - kunit_vprintk(test, level, &vaf); - - va_end(args); -} -- 2.23.0.187.g17f5b7556c-goog
