[PATCH 2/3] lib/test_printf: Fix structure of basic pointer tests

From: Petr Mladek <pmladek@suse.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>
Cc: "Rasmus Villemoes" <linux@rasmusvillemoes.dk>,
	"Sergey Senozhatsky" <sergey.senozhatsky.work@gmail.com>,
	linux-kernel@vger.kernel.org,
	"Uwe Kleine-König" <uwe@kleine-koenig.org>,
	"Ilya Dryomov" <idryomov@gmail.com>,
	"Kees Cook" <keescook@chromium.org>,
	"Tobin C . Harding" <me@tobin.cc>,
	"Petr Mladek" <pmladek@suse.com>
Subject: [PATCH 2/3] lib/test_printf: Fix structure of basic pointer tests
Date: Thu, 27 Feb 2020 14:01:22 +0100	[thread overview]
Message-ID: <20200227130123.32442-3-pmladek@suse.com> (raw)
In-Reply-To: <20200227130123.32442-1-pmladek@suse.com>

The pointer formatting tests have been originally split by
the %p modifiers. For example, the function dentry() tested
%pd and %pD handling.

There were recently added tests that do not fit into
the existing structure, namely:

  + hashed pointer testing
  + null and invalid pointer handling with various modifiers

Reshuffle these tests to follow the original structure.

For completeness, add a test for "%px" with some "random" pointer
value. Note that it can't be tested with "%pE" because it would
cause crash.

Signed-off-by: Petr Mladek <pmladek@suse.com>
---
 lib/test_printf.c | 27 +++++++++++----------------
 1 file changed, 11 insertions(+), 16 deletions(-)

diff --git a/lib/test_printf.c b/lib/test_printf.c
index 6fa6fb606554..1ee1bb703307 100644
--- a/lib/test_printf.c
+++ b/lib/test_printf.c
@@ -278,28 +278,22 @@ test_hashed(const char *fmt, const void *p)
 	failed_tests++;
 }
 
-static void __init
-plain(void)
-{
-	test_hashed("%p", PTR);
-}
+#define PTR_INVALID ((void *)0x000000ab)
 
 static void __init
-null_pointer(void)
+plain_pointer(void)
 {
+	test_hashed("%p", PTR);
 	test_hashed("%p", NULL);
-	test(ZEROS "00000000", "%px", NULL);
-	test("(null)", "%pE", NULL);
+	test_hashed("%p", PTR_INVALID);
 }
 
-#define PTR_INVALID ((void *)0x000000ab)
-
 static void __init
-invalid_pointer(void)
+real_pointer(void)
 {
-	test_hashed("%p", PTR_INVALID);
+	test(PTR_STR, "%px", PTR);
+	test(ZEROS "00000000", "%px", NULL);
 	test(ZEROS "000000ab", "%px", PTR_INVALID);
-	test("(efault)", "%pE", PTR_INVALID);
 }
 
 static void __init
@@ -326,6 +320,8 @@ addr(void)
 static void __init
 escaped_str(void)
 {
+	test("(null)", "%pE", NULL);
+	test("(efault)", "%pE", PTR_INVALID);
 }
 
 static void __init
@@ -601,9 +597,8 @@ errptr(void)
 static void __init
 test_pointer(void)
 {
-	plain();
-	null_pointer();
-	invalid_pointer();
+	plain_pointer();
+	real_pointer();
 	symbol_ptr();
 	kernel_ptr();
 	struct_resource();
-- 
2.16.4

