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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B0F2C76192 for ; Tue, 16 Jul 2019 22:45:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E7A642173E for ; Tue, 16 Jul 2019 22:45:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="J94PBbim" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389043AbfGPWpl (ORCPT ); Tue, 16 Jul 2019 18:45:41 -0400 Received: from mail-pf1-f193.google.com ([209.85.210.193]:40856 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388944AbfGPWpX (ORCPT ); Tue, 16 Jul 2019 18:45:23 -0400 Received: by mail-pf1-f193.google.com with SMTP id p184so9803354pfp.7 for ; Tue, 16 Jul 2019 15:45:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=72sm/MNTwsNcY36VTGuC/LZLkp7KY9tFB/Nl1CF7FuQ=; b=J94PBbim+Yv1GJt8vVgj6+wcSDxVIhoI24sx6Ohj38GaoLPK5smv0nkb3SYd2el77t vhonBa6mPzCYZBG5IGCaD7sBcIrd7SlCQO0LYmBNL8zSlXInCc6ICRsQN0Y4g8SQtwpS mYIMo0LaCbF6Ir8WNqnrThYgyhYz5bABz7R+g= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=72sm/MNTwsNcY36VTGuC/LZLkp7KY9tFB/Nl1CF7FuQ=; b=lz24Rs6O7CByq5KPcK8Y8mbloxbIQdR67EYxmwsRCJBC2do2eEZ7RcYDBL0KyMHIbi I6K7NkFNoWN5yNcEWFA7xk4N8MZe87NkA59YifkauEIOAxVDyuiINc5rfXBLYdk6pEkF XrrwoX3DhJ6r1px9RBLb0aHCWDDmx7QFFZjnQF++MzPWJC62uDXBtTs9QA2gmTVNeZ+Y WzEkr4ayG7YSxgWpAVJmLOFAbt8F4egb69Gr0e/0JxB3VsjM4ApIF3Pf5g7QVG8RcaYC UCFMpY/FJvqXTuGeiSCS+XAHNsC3FmIG1Hr3gBw79xLLaVP5FnOhPfOJ6u2zs2nM4pp6 1U9A== X-Gm-Message-State: APjAAAXjvU/O99Hx0e0MdvLDB9h4DCjocRnZ12iR/3++xFvjehTQGoAb 8GtTXcVFENk54G8AhOUPwHE1Kw== X-Google-Smtp-Source: APXvYqxPLoiQ/fQgpBzDfuDCkw0cAWxIoJ+jwZaN3mgwgHT7TpOVZgKqLx0rU89mFfmaN1nGc7j+/A== X-Received: by 2002:a63:2006:: with SMTP id g6mr36282313pgg.287.1563317122894; Tue, 16 Jul 2019 15:45:22 -0700 (PDT) Received: from smtp.gmail.com ([2620:15c:202:1:fa53:7765:582b:82b9]) by smtp.gmail.com with ESMTPSA id 64sm22182562pfe.128.2019.07.16.15.45.22 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Tue, 16 Jul 2019 15:45:22 -0700 (PDT) From: Stephen Boyd To: Peter Huewe , Jarkko Sakkinen Cc: Andrey Pronin , linux-kernel@vger.kernel.org, Jason Gunthorpe , Arnd Bergmann , Greg Kroah-Hartman , linux-integrity@vger.kernel.org, Duncan Laurie , Guenter Roeck , Dmitry Torokhov Subject: [PATCH v2 3/6] tpm_tis_spi: add max xfer size Date: Tue, 16 Jul 2019 15:45:15 -0700 Message-Id: <20190716224518.62556-4-swboyd@chromium.org> X-Mailer: git-send-email 2.22.0.510.g264f2c817a-goog In-Reply-To: <20190716224518.62556-1-swboyd@chromium.org> References: <20190716224518.62556-1-swboyd@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrey Pronin Reject burstcounts larger than 64 bytes reported by tpm. SPI Hardware Protocol defined in section 6.4 of TCG PTP Spec supports up to 64 bytes of data in a transaction. Signed-off-by: Andrey Pronin Reviewed-by: Dmitry Torokhov Reviewed-by: Jarkko Sakkinen Signed-off-by: Stephen Boyd --- drivers/char/tpm/tpm_tis_spi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/tpm/tpm_tis_spi.c b/drivers/char/tpm/tpm_tis_spi.c index 19513e622053..27393275a3f0 100644 --- a/drivers/char/tpm/tpm_tis_spi.c +++ b/drivers/char/tpm/tpm_tis_spi.c @@ -190,6 +190,7 @@ static const struct tpm_tis_phy_ops tpm_spi_phy_ops = { .read16 = tpm_tis_spi_read16, .read32 = tpm_tis_spi_read32, .write32 = tpm_tis_spi_write32, + .max_xfer_size = MAX_SPI_FRAMESIZE, }; static int tpm_tis_spi_probe(struct spi_device *dev) -- Sent by a computer through tubes