From patchwork Thu Sep 10 06:04:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Joseph Hwang X-Patchwork-Id: 11766671 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 544B1746 for ; Thu, 10 Sep 2020 06:04:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 37BBB207EA for ; Thu, 10 Sep 2020 06:04:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="ogGgIj8K" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726932AbgIJGEv (ORCPT ); Thu, 10 Sep 2020 02:04:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33784 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726746AbgIJGE2 (ORCPT ); Thu, 10 Sep 2020 02:04:28 -0400 Received: from mail-pg1-x541.google.com (mail-pg1-x541.google.com [IPv6:2607:f8b0:4864:20::541]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE85AC061795 for ; Wed, 9 Sep 2020 23:04:19 -0700 (PDT) Received: by mail-pg1-x541.google.com with SMTP id 34so3639871pgo.13 for ; Wed, 09 Sep 2020 23:04:19 -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=uk2jhSlsyW0uEicGAMvJSDRERxJgCUtBRzjLszfNMEM=; b=ogGgIj8KanMA8t16REBPMJqN3hNG+13+3sebCcyTt+DetY1CQsREBYjwwl9/aoCJ+B rLLdYxsaBCtFoV5xtQAQvk0YgtUunOYQlh/9uZi2h4aS7VXxHS40Miif6HgcVgncgW09 Ffl52LwJX72tEZzV/pKa9OP6Yp5WLTcvef/ds= 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=uk2jhSlsyW0uEicGAMvJSDRERxJgCUtBRzjLszfNMEM=; b=RTIuiUpdqCJcHJCRNddHzF6z6ZfXmvEe2bWZ8K6rOnP7yHdNb0rCRwAmRD+oVV2UXn eibtDBNE6mj4HPIOjQNLP//uOhOZGS5ElO2VJVx3rAfGYHAH+kEGV3xMpifTkvm/zKt7 z9wWvTSH1vkGlGvaZL1bpC26Tr+HxN+LEpnevrb1scP7xwDtuLQUbf5U5hQgOCaYLIlB nmvMHW3w3WuMfKFZesnQ3vxe2b7ATIqQI+z0ay7/JkJjPpvlv9Ip+YHZnxotretTFHZC iH/mdpW+RH3N/HePBKUnlTpOxtKQzGhAL6Tajyocq4jx5l23t9y+8pS7fjznDEgZT/Z6 qIKw== X-Gm-Message-State: AOAM533BzxMpiM2j9M8pYjg/V0bqEV7SzYv8Yijyeb5dbAyyFOx4wx8V SfzhyTwFgCa3eNOTOYdPQXHSTv0/iZslhXce X-Google-Smtp-Source: ABdhPJwe0+uwzDRgDCuX9b8VJcjpJiSEscjJ/j45LhdykkKdSMSbbDczNEseCea386az0fz/SY3oCw== X-Received: by 2002:aa7:9edb:0:b029:13e:d13d:a059 with SMTP id r27-20020aa79edb0000b029013ed13da059mr4077835pfq.31.1599717858904; Wed, 09 Sep 2020 23:04:18 -0700 (PDT) Received: from josephsih-z840.tpe.corp.google.com ([2401:fa00:1:10:de4a:3eff:fe7d:ff5f]) by smtp.gmail.com with ESMTPSA id j14sm893236pjz.21.2020.09.09.23.04.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Sep 2020 23:04:18 -0700 (PDT) From: Joseph Hwang To: linux-bluetooth@vger.kernel.org, marcel@holtmann.org, luiz.dentz@gmail.com, pali@kernel.org Cc: chromeos-bluetooth-upstreaming@chromium.org, josephsih@google.com, Joseph Hwang , Alain Michaud , Abhishek Pandit-Subedi , "David S. Miller" , Jakub Kicinski , Johan Hedberg , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH v3 2/2] Bluetooth: sco: new getsockopt options BT_SNDMTU/BT_RCVMTU Date: Thu, 10 Sep 2020 14:04:02 +0800 Message-Id: <20200910140342.v3.2.I03247d3813c6dcbcdbeab26d068f9fd765edb1f5@changeid> X-Mailer: git-send-email 2.28.0.618.gf4bc123cb7-goog In-Reply-To: <20200910060403.144524-1-josephsih@chromium.org> References: <20200910060403.144524-1-josephsih@chromium.org> MIME-Version: 1.0 Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org This patch defines new getsockopt options BT_SNDMTU/BT_RCVMTU for SCO socket to be compatible with other bluetooth sockets. These new options return the same value as option SCO_OPTIONS which is already present on existing kernels. Reviewed-by: Alain Michaud Reviewed-by: Abhishek Pandit-Subedi Signed-off-by: Joseph Hwang Reviewed-by: Pali Rohár --- Changes in v3: - Fixed the commit message. Changes in v2: - Used BT_SNDMTU/BT_RCVMTU instead of creating a new opt name. - Used the existing conn->mtu instead of creating a new member in struct sco_pinfo. - Noted that the old SCO_OPTIONS in sco_sock_getsockopt_old() would just work as it uses sco_pi(sk)->conn->mtu. net/bluetooth/sco.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index dcf7f96ff417e6..79ffcdef0b7ad5 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -1001,6 +1001,12 @@ static int sco_sock_getsockopt(struct socket *sock, int level, int optname, err = -EFAULT; break; + case BT_SNDMTU: + case BT_RCVMTU: + if (put_user(sco_pi(sk)->conn->mtu, (u32 __user *)optval)) + err = -EFAULT; + break; + default: err = -ENOPROTOOPT; break;