Received: by 2002:a25:868d:0:0:0:0:0 with SMTP id z13csp1886608ybk; Mon, 11 May 2020 06:48:27 -0700 (PDT) X-Google-Smtp-Source: APiQypKe3aD4m8Vl2qIFmROLjIt3EH7GnGnsEDAbBly8aZrV3aLYkcOOP3p21gpwXLN1bFlGwiYc X-Received: by 2002:a05:6402:1d15:: with SMTP id dg21mr13891078edb.13.1589204907840; Mon, 11 May 2020 06:48:27 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1589204907; cv=none; d=google.com; s=arc-20160816; b=bDGhUy2hlpXrs6jqavhgmXqFWygUYHT7wz30eFI9gANclkWArqyfWGVZWjkYl62lH7 FWiVoE3sDN65ByVJY8AsjABrlAnaWryCbUm+iUBSaUYgxxwt9ym2McxPcsTj+kv2QU7L eBqXZxycqP0Lt2vzsdLXPa94EOfFOAglVH4bBlh7yMpaQQ1eNV7TxNbTHrXgw1pp9q97 L8oh7LWy4+fAXKqLDFI1970+SSQchzYFf/IwV7vpi++WN7OdggkVKF8/PGNmaoXnr28B rZk81q/5/CB85Ou9WIz8gliMugDVBX04SlAEva/Ao10LkP+QNrhu3gA7RwpasurpUo3L li7A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :content-language:accept-language:in-reply-to:references:message-id :date:thread-index:thread-topic:subject:cc:to:from; bh=0iG7mPTvfwprXDuarv0icHu5GAzt1MRds9c+BDL703E=; b=rDPEYCCsm6q1iQ827urBeyNLL2y7nH2xIDccZi1mblm6ds+XM7gYwdPgNJ4boNghth qgoGTAK68gkO6YjCoNrXOH+s7/DVQj4Rlel5oo691mvKjcGUEOiw22Hysa8MEgsHc2/g 5J1QzbxfSdyzgDWZw2bRUj56KH5bLpyRIKCr+7HeIaCy4soVjRQoO/ydlUwo5HjAoin/ 5XESK+pvK/CZLkLhdThcIr26a39nQ6uN6aIZHikTZos0nCERBRWkCV6lx9Vx0NZlG8fL HF2bCKxT+dnSMn0TdOh3n/0jGJS/L071eHPCbKwrszfvkCjxI7Mu76JH4s4qelWmKE8v nj2A== ARC-Authentication-Results: i=1; mx.google.com; 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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id a63si5958362ede.399.2020.05.11.06.48.04; Mon, 11 May 2020 06:48:27 -0700 (PDT) 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; 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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730158AbgEKNqk convert rfc822-to-8bit (ORCPT + 99 others); Mon, 11 May 2020 09:46:40 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:22752 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726438AbgEKNqj (ORCPT ); Mon, 11 May 2020 09:46:39 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-4-i4s_5wdnO-Ojr9qOo4GxWg-1; Mon, 11 May 2020 14:46:35 +0100 X-MC-Unique: i4s_5wdnO-Ojr9qOo4GxWg-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Mon, 11 May 2020 14:46:35 +0100 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Mon, 11 May 2020 14:46:35 +0100 From: David Laight To: 'Masami Hiramatsu' CC: Shuah Khan , Steven Rostedt , "linux-kselftest@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Tom Zanussi , Li Philip , Liu Yiding , Xiao Yang , Andreas Schwab Subject: RE: [PATCH v2] selftests/ftrace: Use printf for backslash included command Thread-Topic: [PATCH v2] selftests/ftrace: Use printf for backslash included command Thread-Index: AQHWJ5lrSXqvrVhCTk6tpfgbVx7YuKii5XcA Date: Mon, 11 May 2020 13:46:35 +0000 Message-ID: References: <87imh21x6f.fsf@igel.home> <158920418730.16156.8299185499520876735.stgit@devnote2> <20200511223804.9483cab03c9221818ff4fc5b@kernel.org> In-Reply-To: <20200511223804.9483cab03c9221818ff4fc5b@kernel.org> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com 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: Masami Hiramatsu > Sent: 11 May 2020 14:38 > > Hi Andreas and David, > > OK, what about this fix? No idea what it is trying to do or why. Just a way of avoiding the differences between SYSV and BSD /bin/echo. IIRC Posix allows both behaviours (and probably others). David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)