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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 216BBC54ED1 for ; Sat, 28 Jun 2025 10:12:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=wE9ihJk70j2NxLeCwzYgk6WeOS1qV7kGXZRi6xQAQbM=; b=he+n5e5KVgZi5n 0eX1XYhdMQony6atdmiId/nfMWhGDlFhqyJ3FCqjaB/1IBSmhPN5hu05At5QCWeAG2gEm5M7ogSKr MzJgRvvje4PIABehLwNqtNdbckwUA8CcK8zyA8M1IfIgTHiv/DMh73xIKWstGNplt6km8pKi0OI+4 HGXLvz+21RRZ6+skygZXxMhNOLZzE3w7mf8u0r5z/L1aLvK7A12SWJhkcmXOQccOOKtFKe20zqfM2 Vw1HD1pHRp7lG8dpeYRG6SknmcXOu/7tVlNCd5Dxfjs1cvLTrxsrmSIIl6narpxYzmFkeAxY12Ch8 9ZvEvhCP1MZNFgJsK+SQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uVSY7-0000000Gg3T-3efj; Sat, 28 Jun 2025 10:12:43 +0000 Received: from zeus03.de ([194.117.254.33] helo=mail.zeus03.de) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uVSY4-0000000Gg3A-0M0Y for linux-i3c@lists.infradead.org; Sat, 28 Jun 2025 10:12:42 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=k1; bh=wTWl 1hOWh4B3xN1pG+EnUVjAd8XJxoLiQvIbOalhFUY=; b=a8G61kAqKjbjRtgkX2r3 2d/X9OnHa8vHgKhFhpFUnIir8HjAigDHQeoBC5L3ps0opq7EzltVAQNcNG+kQKhq uctvgajQGt6mahiOBH3KiMmsYHmp5GNfz+TJbvW2LxVAl+FVpZjIjrZmCax5Whfd n2M8uVH3ObtUm0vXns0ZYoM2c2v81ceoYcEnJUBYshjPyhLIiL1TOpucRJFCnc38 Pv9foNEfvvWLlq7utFxPR+RTVKVICQAAGn86w+HeiNfBc7n+RSOswwJZuJY8LGnR kf7ptVRwHXKGRJDOrxYrzNGlYy7LxQAHB5qziFIw8xbo7wZdfkLSChACH8/UMdXL MA== Received: (qmail 1797582 invoked from network); 28 Jun 2025 12:12:36 +0200 Received: by mail.zeus03.de with UTF8SMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 28 Jun 2025 12:12:36 +0200 X-UD-Smtp-Session: l3s3148p1@LF2cCJ84fjZtKPFJ Date: Sat, 28 Jun 2025 12:12:35 +0200 From: Wolfram Sang To: Frank Li Cc: linux-renesas-soc@vger.kernel.org, Alexandre Belloni , linux-i3c@lists.infradead.org Subject: Re: [PATCH v2 1/3] i3c: master: replace ENOTSUPP with SUSV4-compliant EOPNOTSUPP Message-ID: References: <20250627111755.16535-5-wsa+renesas@sang-engineering.com> <20250627111755.16535-6-wsa+renesas@sang-engineering.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250628_031240_976938_FB8747C8 X-CRM114-Status: UNSURE ( 6.70 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org On Fri, Jun 27, 2025 at 04:46:37PM -0400, Frank Li wrote: > On Fri, Jun 27, 2025 at 01:17:56PM +0200, Wolfram Sang wrote: > > The checkpatch warning '"ENOTSUPP is not a SUSV4 error code, prefer > > EOPNOTSUPP"' is correct. We never want this to slip to userspace. > > what's means "We never want this to slip to userspace."? > > especial what's 'this' here? ENOTSUPP. If we were 100% sure to only use it it kernel space, we could keep using it. But since this is fragile because we never know about how error propagation will evolve, we chose to not use it. -- linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c