From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CF10C189906; Wed, 31 Dec 2025 01:52:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767145940; cv=none; b=gScGUv+S/sZCYE81C6l9oAcwpB9nILJOIL312IDI1Eq9q6KUWpMlhXLq+bGQZJpTgyCbrqxgF3ceMJNl1F2wpWJ9A8JQIyaLFHUl3HVpb9Gr2694goq8f/YTesBtTu8Wu5cW3Ye5oEIOZx6n1VBAyHGoD2L25mEU1+R5SVITWrc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767145940; c=relaxed/simple; bh=ZTdcIkLpEKUp8FvjFC+vuUF2dVEGtYVIrEh5uiZ9Tx8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=N0VvcsM54z7v4SGlxq94isP/Go2uZBPwaVbG39t6GXPVX5buYBrjBrj14Kmr6elm9RjaJBsuTtU7YXnrrqUGIToqbJSt3gjoaXeahG4e6PTszhkD6Akm7xumlU/XEsyiZc/EkCANQdVhdHheJl72JOK8lxLnonBhnT+IJmX5I+k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=IFaMHshy; arc=none smtp.client-ip=220.197.31.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="IFaMHshy" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Message-ID:Date:MIME-Version:Subject:To:From: Content-Type; bh=/Jviu6s8Co1WoqLYoqogYOVd8I7W+HZTVgu26MAReo4=; b=IFaMHshyfUJWN/B8qR4tkxyGUs/4kygZcby4jg+fxNqqRDgiG6B4WKKLeocg41 XLhxVYA/LhQed/8eP/e13lGM5JvH3OrYBZcJbj6bG5K4YFlOM6WWcO0mb+raGNN0 5iPAJ9rs8dQ3oo/D2AyjJUAORaUFNCqVMmEmCOqEtbl9w= Received: from [10.42.20.201] (unknown []) by gzga-smtp-mtada-g0-3 (Coremail) with SMTP id _____wDXRPqigVRpgmRIDg--.26058S2; Wed, 31 Dec 2025 09:51:30 +0800 (CST) Message-ID: <49331fb0-9cfe-4ec9-a819-60ab62de15e7@163.com> Date: Wed, 31 Dec 2025 09:51:30 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 8/9] exfat: support multi-cluster for exfat_map_cluster To: "Yuezhang.Mo@sony.com" Cc: "brauner@kernel.org" , "chizhiling@kylinos.cn" , "jack@suse.cz" , "linkinjeon@kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "sj1557.seo@samsung.com" , "viro@zeniv.linux.org.uk" , "willy@infradead.org" References: Content-Language: en-US From: Chi Zhiling In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CM-TRANSID:_____wDXRPqigVRpgmRIDg--.26058S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73 VFW2AGmfu7bjvjm3AaLaJ3UbIYCTnIWIevJa73UjIFyTuYvj4Rv-erUUUUU X-CM-SenderInfo: hfkl6xxlol0wi6rwjhhfrp/xtbC2wL3lWlUgaJumwAA3Q On 12/30/25 17:06, Yuezhang.Mo@sony.com wrote: >> @@ -293,12 +298,14 @@ static int exfat_get_block(struct inode *inode, sector_t iblock, >> >> if (cluster == EXFAT_EOF_CLUSTER) >> goto done; >> + if (WARN_ON_ONCE(!count)) >> + count = 1; > > The count is 0 only if cluster is EXFAT_EOF_CLUSTER. > So this warning never occur, right? If yes, please remove it. Yes, it's never 0 unless something goes wrong :) I will remove it in v2.