From patchwork Fri Oct 11 04:04:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tiwei Bie X-Patchwork-Id: 1995872 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=0g7y6Sca; dkim=pass (1024-bit key; unprotected) header.d=antgroup.com header.i=@antgroup.com header.a=rsa-sha256 header.s=default header.b=1fEsLEuf; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=patchwork.ozlabs.org) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4XPtLs0LqVz1xvf for ; Fri, 11 Oct 2024 15:05:07 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=XWQ1ddR8ZcAwD91UZmRnhbCLLnJTKTAUdU8I9wrCZOA=; b=0g7y6ScagNdBj+7WhafDtR5uI1 zewYapKigpP8K9Zh6ilTtlypLvsLNn5C1Pfg4HrELijsNLfc/4dsbyGwYs6XJLUjwoboWWJ4763VM BWzvZq/mfOmB/Xs1DAAImQglQ/vi+k613fLKFeAyFKjgmheZG/Zq1heIjy5xa/vsvWM+JLUwjtfdw WzO+Tcj9qpV1mL+hy5I9I9fRoUDihdA6RChIJT6cDDqgRTubYdO7A7QbwzU1e79BTG0UHz6SIR7Sx 5x33dN2S80vrYh0a05NgbtJfbggwsy4sfTuMwBHxkBA2jBn816bMrZceYJrsmJMeyzMlNmSw5hKlA OOfACQyg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1sz6tj-0000000FCG8-2hPd; Fri, 11 Oct 2024 04:05:03 +0000 Received: from out0-195.mail.aliyun.com ([140.205.0.195]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1sz6te-0000000FCBw-3rM0 for linux-um@lists.infradead.org; Fri, 11 Oct 2024 04:05:01 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=antgroup.com; s=default; t=1728619496; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=XWQ1ddR8ZcAwD91UZmRnhbCLLnJTKTAUdU8I9wrCZOA=; b=1fEsLEuf4BsbSuzhqFVygGv7f/QmLPFTPs3E/h0o19075EE0+RyWSZdz/2SMZ93zOy/uMn8E9yNcxTZZ9Iq3fvleKGpvstHOq31jGq1JiNz0Di16TDIVrXBj3IDTrcK0gjIoaoo9oaR4qMZ+THovDmGiHPKcYs13oaT2RDzoOzY= Received: from ubuntu..(mailfrom:tiwei.btw@antgroup.com fp:SMTPD_---.Ze33tz8_1728619495) by smtp.aliyun-inc.com; Fri, 11 Oct 2024 12:04:56 +0800 From: "Tiwei Bie" To: richard@nod.at, anton.ivanov@cambridgegreys.com, johannes@sipsolutions.net Cc: , , "Tiwei Bie" Subject: [PATCH 6/9] hostfs: Do not propagate hostfs parameter to kernel Date: Fri, 11 Oct 2024 12:04:38 +0800 Message-Id: <20241011040441.1586345-7-tiwei.btw@antgroup.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241011040441.1586345-1-tiwei.btw@antgroup.com> References: <20241011040441.1586345-1-tiwei.btw@antgroup.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241010_210459_181815_B9960AB7 X-CRM114-Status: UNSURE ( 7.38 ) X-CRM114-Notice: Please train this message. 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[140.205.0.195 listed in bl.score.senderscore.com] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-um" Errors-To: linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org This parameter is UML specific and is unknown to kernel. It should not be propagated to kernel, otherwise it will be passed to user space as an environment option by kernel with a warning like: Unknown kernel command line parameters "hostfs=/foo", will be passed to user space. Signed-off-by: Tiwei Bie --- fs/hostfs/hostfs_kern.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index 6d1cf2436ead..8d47c6b70c9f 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -57,6 +57,7 @@ static int __init hostfs_args(char *options, int *add) { char *ptr; + *add = 0; ptr = strchr(options, ','); if (ptr != NULL) *ptr++ = '\0';