From nobody Fri Dec 19 13:23:02 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D041B199FBA; Sat, 6 Dec 2025 13:19:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765027171; cv=none; b=aucCXIEXPZ/EqFnnhibkgDJcfwDJEKOBnWuSxi0m3zfqXw/GH2URL36q22fRnZw158PWMrK+5bJp6S/FWjn74aqvk5JpwyARUHiaNFVe9gwlVyV4aw25NFQ9FGjm/lDOeJ7LxCHVYG5tEdoUronwzU2mfMY7v1fA0spjrmJoymM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765027171; c=relaxed/simple; bh=18yUxHpOkie+CTnEIKGVhIe9m9RepnZZoFKEVsFqjjA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=VRjL5G8Nq/Peu6PpQ4fnL3BwdaudIm9T/EiEeGegBBnVgzv9bqBF4F8h9k+G7z0noY83mm2dU9r7FyDKLVzZw/C5/V1rN1AYnD2+y6RdR7FORTzX++ueA033GDcC5hVbmulYbj6Oy2SHCoB41Phc6ZjucML+2WNvSdH6Fv1Fn5w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Q+JySupA; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Q+JySupA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7DE1AC4CEF5; Sat, 6 Dec 2025 13:19:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1765027171; bh=18yUxHpOkie+CTnEIKGVhIe9m9RepnZZoFKEVsFqjjA=; h=From:Date:Subject:To:Cc:From; b=Q+JySupAZ4A9OptHDm0jDDi/431EK/3K3pBIZfUrWD8k0mhc2MKVjggoxUtcByhlk JNygebB/yFetXq3epTzIVAwuMvhc/8AXAFnBya72XY4gMQ74g8sJjE5Pnup5w1oU80 2st/aYNTueNBjIKnKGsIiPjhxBEghNZkjev4QUqQXNm+fDLo8xNg0p2feEbhoBCehk IdO9Daezu7d+a8ozfQfq7Lsouz4vzY1+XNs6bltPkr0XrGbc2jAGT4xfznVWv+B004 wUcuO/2Dn+Nyhl8uNhmW07d0ij3IkSy35vfgJjbN6vwRsMarsGWwOxP3EZeqoUlSNp zJJ2gZCz/qsgQ== From: Tamir Duberstein Date: Sat, 06 Dec 2025 08:19:09 -0500 Subject: [PATCH] printf: add __printf attribute Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251206-printf-kunit-printf-attr-v1-1-1682808b51d0@gmail.com> X-B4-Tracking: v=1; b=H4sIAAAAAAAC/zXMQQqDMBBA0avIrBtIIir2KtKFxomOhSiTUQTx7 sYWl2/x/wERmTDCOzuAcaNIc0gwrwzc2IYBFfXJYLUtjNWlWpiCePVdA8mDVoSVqfOy9q6oOq8 h5Qujp/23bj5/x7Wb0Mn9g/O8AMkLmTZ8AAAA X-Change-ID: 20251206-printf-kunit-printf-attr-19369fc57bf0 To: Petr Mladek , Steven Rostedt , Andy Shevchenko , Rasmus Villemoes , Sergey Senozhatsky Cc: Kees Cook , linux-kernel@vger.kernel.org, oe-kbuild-all@lists.linux.dev, Tamir Duberstein , kernel test robot X-Mailer: b4 0.15-dev X-Developer-Signature: v=1; a=openssh-sha256; t=1765027170; l=968; i=tamird@gmail.com; h=from:subject:message-id; bh=e5F37dr2wfaldpekfqUwZx+AF4xxA3CEjbLAHNs7ppo=; b=U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgtYz36g7iDMSkY5K7Ab51ksGX7hJgs MRt+XVZTrIzMVIAAAAGcGF0YXR0AAAAAAAAAAZzaGE1MTIAAABTAAAAC3NzaC1lZDI1NTE5AAAA QHPjzcTvXazbI7Hl8aCqniNXVOdp72RN+z+TTnXuPBSuGzRyc+2YxWQApTCcV3kSH4gM0jnGoXY m4VNzjdRM6QE= X-Developer-Key: i=tamird@gmail.com; a=openssh; fpr=SHA256:264rPmnnrb+ERkS7DDS3tuwqcJss/zevJRzoylqMsbc From: Tamir Duberstein This produces better diagnostics when incorrect inputs are passed. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202512061600.89CKQ3ag-lkp@int= el.com/ Signed-off-by: Tamir Duberstein --- lib/tests/printf_kunit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/tests/printf_kunit.c b/lib/tests/printf_kunit.c index 7617e5b8b02c..13e2e9afae3b 100644 --- a/lib/tests/printf_kunit.c +++ b/lib/tests/printf_kunit.c @@ -266,7 +266,7 @@ hash_pointer(struct kunit *kunittest) KUNIT_EXPECT_MEMNEQ(kunittest, buf, PTR_STR, PTR_WIDTH); } =20 -static void +static void __printf(2, 3) test_hashed(struct kunit *kunittest, const char *fmt, const void *p) { char buf[PLAIN_BUF_SIZE]; --- base-commit: 559e608c46553c107dbba19dae0854af7b219400 change-id: 20251206-printf-kunit-printf-attr-19369fc57bf0 Best regards, -- =20 Tamir Duberstein