From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.zeus03.de (zeus03.de [194.117.254.33]) (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 4C2692E36FF for ; Sun, 10 Aug 2025 05:51:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.117.254.33 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754805080; cv=none; b=s9jS6FUmo8yGS63JzVOQvRxQAGR8OKi84hlycnngisIUgWJNHMQ7dmD4+2wM/ylAauRUYFf3WZW+1/YYJPSM5fnlhhzmug+aDfpzkqgL4VEbpnDlxhZr10L74wiVIE69HGAH4nJO8A8FfKPxQI1djvmtLS3HU+7S/AxWKQPs+cI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754805080; c=relaxed/simple; bh=PsIhHcUGqCpR2twnjpTepbyzUafG9wt938cONenw7QY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=DCUZQXZ9Pr3soAmMJm1WDx/qwZTqMiYm9P45SsXRciOiGNx+wiz3KUjbl5NI0FE02JamIfqePv6QKf/vbOOYQErNvTKZ8hawFpWVq7IACsjGZ/mPybnr0+SrIVPytWrzYzKQ6yWsKDQN9+gv7nuhl3mBYEwzl/mbf3e461rUU88= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com; spf=pass smtp.mailfrom=sang-engineering.com; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b=AubHkPDn; arc=none smtp.client-ip=194.117.254.33 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="AubHkPDn" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=k1; bh=PsIh HcUGqCpR2twnjpTepbyzUafG9wt938cONenw7QY=; b=AubHkPDnRl82RGHyKO0F 7OlEi2gLoZToW6IzsTQ8DjZmaSgZqWQDYSHcRApXIZzY4/IMXMr7wlGsCeYOwHJ4 q1q0GzrrLESeUK3isoyUeINvBboFkF2/KvnBYmdeweBRHAzZRdLdj2c+X9ftXHbM IYIaGs+ebZ62L957LVpNHtaav7+/oT1km3xwB2zamFDRrJT6ULOxZt7vhKxBzzeT 6BWUCHCYrOY8HDk1TM6VTBFVfCbzBDlMHy1j3Vy1xGqFZpdVYJvw7SRpEvq7lpOa q3RNpO+YED3vmj4okvAiZHC2oe5igxRbbBt1BPwCH/9UT8xzfVqwzIx46XpecFyd yA== Received: (qmail 2320593 invoked from network); 10 Aug 2025 07:51:13 +0200 Received: by mail.zeus03.de with UTF8SMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 10 Aug 2025 07:51:13 +0200 X-UD-Smtp-Session: l3s3148p1@m0QIZfw7eq9tKDGm Date: Sun, 10 Aug 2025 07:51:12 +0200 From: Wolfram Sang To: Jonas Jelonek Cc: Chris Packham , Andi Shyti , Rob Herring , Krzysztof Kozlowski , linux-i2c@vger.kernel.org, Conor Dooley , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Markus Stockhausen , Sven Eckelmann , Harshal Gohel Subject: Re: [PATCH v5 05/11] i2c: rtl9300: check if xfer length is valid Message-ID: References: <20250809220713.1038947-1-jelonek.jonas@gmail.com> <20250809220713.1038947-6-jelonek.jonas@gmail.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="5PQiOrpP1mtSoLHQ" Content-Disposition: inline In-Reply-To: <20250809220713.1038947-6-jelonek.jonas@gmail.com> --5PQiOrpP1mtSoLHQ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sat, Aug 09, 2025 at 10:07:06PM +0000, Jonas Jelonek wrote: > Add an explicit check for the xfer length to 'rtl9300_i2c_config_xfer' > to make sure a length < 1 or > 16 isn't accepted. While there shouldn't > be a length > 16 because this is specified in the i2c_adapter_quirks, a > length of 0 may be passed. There is another quirk for this: I2C_AQ_NO_ZERO_LEN With that, you shouldn't need the code here. --5PQiOrpP1mtSoLHQ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmiYM00ACgkQFA3kzBSg KbZNOBAAjfKExe28v6S9oT90jl8uJ/C7in/49H/tVl+c7ElM5fo9WCQ0pskGqeGv o/OHyYK1GoqtE7rDE7Ir7hUZNUOF2xgnbEmod2Fyy3n7qAbuj1APKNR5rJ0IBRho NuRdUWlp4lraiEqiosrVFo0U++6NPGLPCPuQzePdqY110Hqp7s6AdIEyn8y5Vdak xlLB8hpk/gCj58FoaHbpsyOf/eszsBUpxXGLx9tuua8h9Xh9h6esBdtHysdQ9pea eARSNfWuGrSYyQraPcGBs7vekF0emM+SbCIAOb+l+16Z056xARvpY3qGFAxBuWDS 4/0F65vldBhkHtcH67jYmvz+tMlY1VGjVZp8S36Fc5FmjSyfFI1mokExYW5drTgZ alW9Ndto6zMQwACbRuilArtWwsftdp+yjnuvyJLe7A8RBWVnElbGE5IjoNlpdf2C ki08xszUhxPMupAOzgFeSUGH83Dawu2o35vQU1ZI0sm9pxBfcwzqiKD2YyHrVgt+ SqyFErzzFrFy4yIau7EncQChEtKCAOljmtp+iIEieKQ8+lf2/M9LzFeINRl11855 vsyEZZ1RyG8oiBOGYVrdlMHmc9V7RtOQ2vewwbCanydHTrILpL0cURnDOkBbLO1/ uVm7Z52M3Fjcs5mL5+VDB/4YwFJTOjbdClvg/pAi/dnQTUPf+GA= =lymY -----END PGP SIGNATURE----- --5PQiOrpP1mtSoLHQ--