linux-kernel - [PATCH 6.8 033/715] net: test: Fix printf format specifier in skb

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Message-ID: <20240324223455.1342824-34-sashal@kernel.org>
Date: Sun, 24 Mar 2024 18:23:32 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: David Gow <davidgow@...gle.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Justin Stitt <justinstitt@...gle.com>,
	Shuah Khan <skhan@...uxfoundation.org>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.8 033/715] net: test: Fix printf format specifier in skb_segment kunit test

From: David Gow <davidgow@...gle.com>

[ Upstream commit ff3b96f2c9e5c24fca12239cd519a8a18569e687 ]

KUNIT_FAIL() accepts a printf-style format string, but previously did
not let gcc validate it with the __printf() attribute. The use of %lld
for the result of PTR_ERR() is not correct.

Instead, use %pe and pass the actual error pointer. printk() will format
it correctly (and give a symbolic name rather than a number if
available, which should make the output more readable, too).

Fixes: b3098d32ed6e ("net: add skb_segment kunit test")
Signed-off-by: David Gow <davidgow@...gle.com>
Tested-by: Guenter Roeck <linux@...ck-us.net>
Reviewed-by: Justin Stitt <justinstitt@...gle.com>
Signed-off-by: Shuah Khan <skhan@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/core/gso_test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/gso_test.c b/net/core/gso_test.c
index 4c2e77bd12f4b..358c44680d917 100644
--- a/net/core/gso_test.c
+++ b/net/core/gso_test.c
@@ -225,7 +225,7 @@ static void gso_test_func(struct kunit *test)
 
 	segs = skb_segment(skb, features);
 	if (IS_ERR(segs)) {
-		KUNIT_FAIL(test, "segs error %lld", PTR_ERR(segs));
+		KUNIT_FAIL(test, "segs error %pe", segs);
 		goto free_gso_skb;
 	} else if (!segs) {
 		KUNIT_FAIL(test, "no segments");
-- 
2.43.0