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=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 2A366C43381 for ; Fri, 22 Mar 2019 12:59:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EE9AE2075E for ; Fri, 22 Mar 2019 12:59:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553259593; bh=O8LYsxVAevhjRTrw989FgHOP0DzI3VVu+Lff18CsJbQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=D3HGzuLKuYIg/WbotJZpeYcHWdalLVOgvvbSLAN8R9m1LcoekEo3kSHRgKdXUiUAO 43HdBVM90WkxHYo8UAG0V1YYxikrHEJFw7G2T1wDnLbYTJxaT/53oKVesn/NFdNJcS 2TzU2u54TRPGTBvHgZbl33cr9p5jE5mkKRQu/3Zk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731881AbfCVLoy (ORCPT ); Fri, 22 Mar 2019 07:44:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:47852 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731654AbfCVLou (ORCPT ); Fri, 22 Mar 2019 07:44:50 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5BB6E218B0; Fri, 22 Mar 2019 11:44:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553255089; bh=O8LYsxVAevhjRTrw989FgHOP0DzI3VVu+Lff18CsJbQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iMlMSyiSl5ygsgjH16b4H4N7m/KFKqFi+jLvawyrr4QpILc4Zcx69E/gaREeZMll4 efgAqKPUZN+KuzhSJTjaR5gWnpXXUUPHqA4jRPQMHUFuwv+GwcdlJJnaoQbCZxLTaB T5T6axeVQ65jiFBHMrgldPK/Fub5emQ/MScxx8/0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dmitry Osipenko , Sowjanya Komatineni , Wolfram Sang Subject: [PATCH 4.9 084/118] i2c: tegra: fix maximum transfer size Date: Fri, 22 Mar 2019 12:15:56 +0100 Message-Id: <20190322111222.556188212@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190322111215.873964544@linuxfoundation.org> References: <20190322111215.873964544@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sowjanya Komatineni commit f4e3f4ae1d9c9330de355f432b69952e8cef650c upstream. Tegra186 and prior supports maximum 4K bytes per packet transfer including 12 bytes of packet header. This patch fixes max write length limit to account packet header size for transfers. Cc: stable@vger.kernel.org # 4.4+ Reviewed-by: Dmitry Osipenko Signed-off-by: Sowjanya Komatineni Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/busses/i2c-tegra.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -794,7 +794,7 @@ static const struct i2c_algorithm tegra_ /* payload size is only 12 bit */ static struct i2c_adapter_quirks tegra_i2c_quirks = { .max_read_len = 4096, - .max_write_len = 4096, + .max_write_len = 4096 - 12, }; static const struct tegra_i2c_hw_feature tegra20_i2c_hw = {