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[23.128.96.18]) by mx.google.com with ESMTP id o26si9530903edw.74.2021.01.19.09.13.28; Tue, 19 Jan 2021 09:13:52 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=fail header.i=@phytec.de header.s=a1 header.b=B7uhBaTc; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389766AbhASRM0 (ORCPT + 99 others); Tue, 19 Jan 2021 12:12:26 -0500 Received: from mickerik.phytec.de ([195.145.39.210]:59974 "EHLO mickerik.phytec.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390524AbhASRLa (ORCPT ); Tue, 19 Jan 2021 12:11:30 -0500 X-Greylist: delayed 829 seconds by postgrey-1.27 at vger.kernel.org; Tue, 19 Jan 2021 12:11:30 EST DKIM-Signature: v=1; a=rsa-sha256; d=phytec.de; s=a1; c=relaxed/simple; q=dns/txt; i=@phytec.de; t=1611076239; x=1613668239; h=From:Sender:Reply-To:Subject:Date:Message-ID:To:CC:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=eoordXUw6KUWMAixMtC80v8Vu9Qg/xm8FcYRY6dgC2E=; b=B7uhBaTcPwT0kcwDmd9C6Sjx19sd/LkFqPCa1Cv186VmJXY5Pa0SAm8PI1ZU8mvv Lg08XQ3gYuveB+oqzDjA0aVeKZSNrQP8NKqWQuZVv47VFZDHHg5Wg2rD62qMeRJs 6u3+grQKLMWhA0nyHu61xBxVBkOmBbiZlx1Ayxzj70g=; X-AuditID: c39127d2-0d3b770000001c86-9f-6007128f5d18 Received: from Florix.phytec.de (florix.phytec.de [172.16.0.118]) (using TLS with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mickerik.phytec.de (PHYTEC Mail Gateway) with SMTP id 95.B0.07302.F8217006; Tue, 19 Jan 2021 18:10:39 +0100 (CET) Received: from [172.16.21.73] (172.16.0.116) by Florix.phytec.de (172.16.0.118) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Tue, 19 Jan 2021 18:10:39 +0100 Subject: Re: Splicing to/from a tty From: Robert Karszniewicz To: Greg Kroah-Hartman , Linus Torvalds CC: Christoph Hellwig , Oliver Giles , Linux Kernel Mailing List , Al Viro , Jiri Slaby References: <20210118081615.GA1397@lst.de> <9d3baff9-5d4a-4308-9556-8dd037c2fe4b@phytec.de> Message-ID: <4c96301e-f2a1-3343-8927-c2567ad179eb@phytec.de> Date: Tue, 19 Jan 2021 18:10:38 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <9d3baff9-5d4a-4308-9556-8dd037c2fe4b@phytec.de> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [172.16.0.116] X-ClientProxiedBy: Florix.phytec.de (172.16.0.118) To Florix.phytec.de (172.16.0.118) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpikeLIzCtJLcpLzFFi42JZI8BQptsvxJ5gsPeNrkXz4vVsFitXH2Wy eDdXxuLyrjlsFr2rNrJaPOp7y25x/u9xVgd2j52z7rJ7bFrVyeZxYsZvFo/9c9ewe+y+2cDm 8XmTnMemJ2+ZAtijuGxSUnMyy1KL9O0SuDL6j29mLpjJVPHqwVz2Bsb7jF2MnBwSAiYSt3fe YOti5OIQEljGJLFu2zoWCOc+o8S62zuYQKqEBZQlJnbPYwGx2YA6djffYu5i5OAQEUiV2L+z GqSeWeAUo8T9pjnMIDVCAr2sEotuaIHYvAI2EvtXrGMHsVkEVCWuP3kDNlNUIEKita+TGaJG UOLkzCdg8zkFbCV2zP3KDjKfWUBTYv0ufZAws4C4xK0n85kgbHmJ7W9hVqlKnG57zQTxjILE 3N8TmSHscIl5v2exT2AUnoVkwyyEqbOQTJ2FZOoCRpZVjEK5mcnZqUWZ2XoFGZUlqcl6Kamb GIHxdHii+qUdjH1zPA4xMnEwHmKU4GBWEuFt+suWIMSbklhZlVqUH19UmpNafIhRmoNFSZx3 A29JmJBAemJJanZqakFqEUyWiYNTqoFR/lTK8ScBr7bHL1p03WUS7/otSv8dmZmklqw5xcO0 eHaaTsTdeslL5hMezBDcV7+IbV+HTsWlu4Hn/RXOyEdFLPNhfNLVHmYt87HYpCNNRnD9Kb5p P+Xyp3q/1wn37480XqebXmB8QsJ5yl611p3tJWmHZ+oarJjJaWgtEP7+bU1vo6fcyiYlluKM REMt5qLiRACQ4KT9lQIAAA== Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 1/19/21 5:56 PM, Robert Karszniewicz wrote: > Another case I've also noticed is writing to a serial connection: > kernel write not supported for file /ttymxc0 (pid: 252 comm: cat) Which is actually a TTY and I just failed to see the forest for all the trees... Cheers.