From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 04033C7EE37 for ; Tue, 6 Jun 2023 21:18:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232517AbjFFVSd (ORCPT ); Tue, 6 Jun 2023 17:18:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38966 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234075AbjFFVSc (ORCPT ); Tue, 6 Jun 2023 17:18:32 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B52801721; Tue, 6 Jun 2023 14:18:31 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 5171360EC6; Tue, 6 Jun 2023 21:18:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CEB1FC433EF; Tue, 6 Jun 2023 21:18:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686086310; bh=rT39aEK+K3uR/3XOlMbDe04K7/U0xWVuxq8MDWQpi0M=; h=Date:Subject:From:To:References:In-Reply-To:From; b=g2akhLf2/i3GQvLNA6LIHI6z/A309fzZyqJ6vk/V2PSHeeiyYmt442fS7BKnWphFC mZMZJzH4VqYqIz/hwAyYG+JaBldGqzWitLb9NcUQO9Xku2/XmgTGNI0oeFwoc5oqws hQIfP/TZyKJYho5GmyCyVq4HBMHLtWU7h/5pMFRKqPq0dGH8dh9XTDGFc2ZD3HaEZn 0PoJrq5qPmJ7vp84equjzrHFJ7V2iUE5cykVWSYG8Nuopiy020vZrphcEu4FEnBeKK 8fO+jaFPfjEoEePDqmttF1QMjKoVP1TXxXXOFfBJHgR0zo/uuUSUgvGMis8eTJ64EP 0vrG3s6Y4lgvA== Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Wed, 07 Jun 2023 00:18:27 +0300 Message-Id: Subject: Re: [PATCH v2 3/4] tpm_tis: Use responseRetry to recover from data transfer errors From: "Jarkko Sakkinen" To: "Alexander Steffen" , , X-Mailer: aerc 0.14.0 References: <20230605175959.2131-1-Alexander.Steffen@infineon.com> <20230605175959.2131-4-Alexander.Steffen@infineon.com> In-Reply-To: <20230605175959.2131-4-Alexander.Steffen@infineon.com> Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org On Mon Jun 5, 2023 at 8:59 PM EEST, Alexander Steffen wrote: > +static int tpm_tis_recv_with_retries(struct tpm_chip *chip, u8 *buf, siz= e_t count) > +{ > + struct tpm_tis_data *priv =3D dev_get_drvdata(&chip->dev); > + unsigned int try; > + int rc =3D 0; > + > + if (count < TPM_HEADER_SIZE) { > + rc =3D -EIO; > + goto out; > + } if (count < TPM_HEADER_SIZE) return -EIO; BR, Jarkko