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,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 2924BC432C3 for ; Fri, 22 Nov 2019 11:08:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 025A020718 for ; Fri, 22 Nov 2019 11:08:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574420932; bh=ZMIpm2eGoF1gz+prN8Rj5RSMJQK+YlymFSmMKKZXimg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=eFrB59I4QhGOobSptYKU59xAHkgrLFO6/rXnp1PlE4pHTl8iCkwZJJCHV6/7t1pWc Kztr55krbf/3NDmdBBr+crxdOlMEUN1BmUa2ycm65pAUqrcnPxWywlUM0V9CGs5uyL hMrQU6NbsfZ0unZKr754O2WBh8lpRh4UlrCw5PdE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731482AbfKVLD7 (ORCPT ); Fri, 22 Nov 2019 06:03:59 -0500 Received: from mail.kernel.org ([198.145.29.99]:58282 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731468AbfKVLDw (ORCPT ); Fri, 22 Nov 2019 06:03:52 -0500 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 31DAE20659; Fri, 22 Nov 2019 11:03:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574420631; bh=ZMIpm2eGoF1gz+prN8Rj5RSMJQK+YlymFSmMKKZXimg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=13cCQ1LGZ7LY0Cyt0xRFlQt/7c/1wYZCbkk6ptBpNFDn32IvuDHY9Im55TuIIGFqj Eoeh05ohFYg28skBf/73UwTM84XoWzlpzSEFg86UDhawDC/IPrmN5Ltagq3GYqpxQ9 5NsntdDmO51v6Ve4ha1PoR8MzHi7z07R1q8hZF4c= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Wolfram Sang , Jon Hunter , Wolfram Sang , Sasha Levin Subject: [PATCH 4.19 129/220] i2c: tegra: use core to detect no zero length quirk Date: Fri, 22 Nov 2019 11:28:14 +0100 Message-Id: <20191122100922.101651124@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191122100912.732983531@linuxfoundation.org> References: <20191122100912.732983531@linuxfoundation.org> User-Agent: quilt/0.66 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 From: Wolfram Sang [ Upstream commit c96c0f2683804b710531e7b754dcd02b5ded6d4a ] And don't reimplement in the driver. Signed-off-by: Wolfram Sang Acked-by: Jon Hunter Signed-off-by: Wolfram Sang Signed-off-by: Sasha Levin --- drivers/i2c/busses/i2c-tegra.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index ef13b6ce9d8de..47d196c026ba6 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -684,9 +684,6 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev, tegra_i2c_flush_fifos(i2c_dev); - if (msg->len == 0) - return -EINVAL; - i2c_dev->msg_buf = msg->buf; i2c_dev->msg_buf_remaining = msg->len; i2c_dev->msg_err = I2C_ERR_NONE; @@ -831,6 +828,7 @@ static const struct i2c_algorithm tegra_i2c_algo = { /* payload size is only 12 bit */ static const struct i2c_adapter_quirks tegra_i2c_quirks = { + .flags = I2C_AQ_NO_ZERO_LEN, .max_read_len = 4096, .max_write_len = 4096 - 12, }; -- 2.20.1