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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,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 81696C4332E for ; Tue, 26 Jan 2021 09:22:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 35C5D23109 for ; Tue, 26 Jan 2021 09:22:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390081AbhAZJUS (ORCPT ); Tue, 26 Jan 2021 04:20:18 -0500 Received: from mail.kernel.org ([198.145.29.99]:34004 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730594AbhAYSr6 (ORCPT ); Mon, 25 Jan 2021 13:47:58 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0EA4020665; Mon, 25 Jan 2021 18:47:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1611600463; bh=Mv2rqlaJW1BoCRBzU6hB7XGeAPeXtLJmXqqtg6DUfBY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qCglI4lKS9aT5BTnmntFQIn5n6gwnW8aLIXTw2URTzLjqMiMO7J+v1t2WS6/+Q/82 9jlcV180P0JWhRffAeFJjymXP+VFQFpF73PZrCJ3ixSPNRX6HXLD6jwxiQqyv8dmaE SWK2UQowvvrdvh3PxRPtWglNBc6kVFFw06lIVjQc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mikko Perttunen , Wolfram Sang Subject: [PATCH 5.10 005/199] i2c: bpmp-tegra: Ignore unknown I2C_M flags Date: Mon, 25 Jan 2021 19:37:07 +0100 Message-Id: <20210125183216.478749211@linuxfoundation.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210125183216.245315437@linuxfoundation.org> References: <20210125183216.245315437@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mikko Perttunen commit bc1c2048abbe3c3074b4de91d213595c57741a6b upstream. In order to not to start returning errors when new I2C_M flags are added, change behavior to just ignore all flags that we don't know about. This includes the I2C_M_DMA_SAFE flag that already exists but causes -EINVAL to be returned for valid transactions. Cc: stable@vger.kernel.org # v4.19+ Signed-off-by: Mikko Perttunen Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/busses/i2c-tegra-bpmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/i2c/busses/i2c-tegra-bpmp.c +++ b/drivers/i2c/busses/i2c-tegra-bpmp.c @@ -80,7 +80,7 @@ static int tegra_bpmp_xlate_flags(u16 fl flags &= ~I2C_M_RECV_LEN; } - return (flags != 0) ? -EINVAL : 0; + return 0; } /**