From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.5]) (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 28255481259 for ; Tue, 5 May 2026 15:38:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777995537; cv=none; b=j/2wZpokIAevVx9m3frhB4hKPjuGp/3/lZZJTCeYQMpFmCr6DyxiCsNdmG6KAnlcJ7elwq5s2JuXf1GCMtLUPPHsk1tYws87a+AAZY1VOigs4hqI9GLipwEF0J94B9KC9cFERbPmAD6CbbLJJR15T1N0oGoDR5PCzEVUssZd/50= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777995537; c=relaxed/simple; bh=5+RCpD514sLPgT6iS9s+WaiwNOJS0dCCkDlP33eZAwc=; h=Date:From:To:Cc:Subject:Content-Type:MIME-Version:Message-ID; b=KeL9GqglelX1SAp4liHdPYKonAyEtnbAGL1nBQxv8soBNtEHruwb2w7VreLnXRsFUn7BEqtvZSyZdqq8yFgskhRAyu90Nj77VyqHnvnMAK6wmqgzAWIYEJYxK0KL8ocX8wEAyshvhN8XBl51vu4TCwgTGW6NGyDOfsPjk7z1jQ4= 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=h0Go6jHf; arc=none smtp.client-ip=220.197.31.5 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="h0Go6jHf" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:To:Subject:Content-Type:MIME-Version: Message-ID; bh=5+RCpD514sLPgT6iS9s+WaiwNOJS0dCCkDlP33eZAwc=; b=h 0Go6jHfb+Djdrvznv+i+Ad38LB3lbxGKwN8mQmwST3AryHUCjfiCi8j95Wx8CJsu hwzHmoe8pPPoj1DQb073VJXcqp+wzGqF65WT1rOGpTo9pL+cZgFProM9FBe65cov 12SP3aiIjk9YPZWy2zZ7Pr2ghejiNUmubwNKNXilwg= Received: from zjttime$163.com ( [2408:823c:e18:8ea:c571:cb28:2e93:7591] ) by ajax-webmail-wmsvr-40-109 (Coremail) ; Tue, 5 May 2026 23:38:49 +0800 (CST) Date: Tue, 5 May 2026 23:38:49 +0800 (CST) From: juntz To: linux-kernel@vger.kernel.org Cc: "zjttime@163.com" Subject: Question about C/C++ Safety and Kernel Development X-Priority: 3 X-Mailer: Coremail Webmail Server Version 2023.4-cmXT build 20260403(27802f6d) Copyright (c) 2002-2026 www.mailtech.cn 163com X-NTES-SC: AL_Qu2cBfWSuk0p7yidYukXmUoWguo4XsGyuf8m3oMbROU5hTjS+xsBcFVtBUnb3vmEBTyXsgiUdh9s7O1HZa4ofgTam18EtGYfjvFuNXgy Content-Transfer-Encoding: base64 Content-Type: text/plain; charset=GBK Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <6854977f.36f8.19df8cabe8a.Coremail.zjttime@163.com> X-Coremail-Locale: zh_CN X-CM-TRANSID:bSgvCgDXN+8JD_pp8pqbAA--.2528W X-CM-SenderInfo: x2mw3xlph6il2tof0z/xtbC5Aneumn6DwmYHAAA3Y X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== CgpTdWJqZWN0OiBRdWVzdGlvbiBhYm91dCBDL0MrKyBTYWZldHkgYW5kIEtlcm5lbCBEZXZlbG9w bWVudApEZWFyIE1yLiBUb3J2YWxkcywKCkFzIGFuIGFtYXRldXIgZGV2ZWxvcGVyIHdobyBpcyBm YW1pbGlhciB3aXRoIEMgbGFuZ3VhZ2UgYW5kIEMrKyBzeW50YXgsIEkgaGF2ZSBhbHdheXMgYmVl biBjdXJpb3VzIHdoZXRoZXIgQyBvciBDKysgY291bGQgb25lIGRheSBhY2hpZXZlIHRoZSBzYWZl dHkgZ3VhcmFudGVlcyB0aGF0IFJ1c3QgcHJvdmlkZXMuCgpJIGhhdmUgcmVhZCBhYm91dCB0aGUg Y2hhbGxlbmdlcyBvZiBrZXJuZWwgZGV2ZWxvcG1lbnQgYW5kIHRoZSByZWNlbnQgYWRvcHRpb24g b2YgUnVzdCBpbiBjZXJ0YWluIGFyZWFzIG9mIHRoZSBMaW51eCBrZXJuZWwuIEkgdW5kZXJzdGFu ZCB0aGF0IGluIDE5OTIsIHRoZSBMaW51eCBwcm9qZWN0IGF0dGVtcHRlZCB0byB1c2UgQysrIGZv ciBrZXJuZWwgZGV2ZWxvcG1lbnQgYnV0IHVsdGltYXRlbHkgYWJhbmRvbmVkIHRoZSBpZGVhLgoK SSB3b3VsZCBsaWtlIHRvIGFzazogd2hhdCBhcmUgdGhlIGZ1bmRhbWVudGFsIHRlY2huaWNhbCBy ZWFzb25zIHRoYXQgcHJldmVudCBDKysgZnJvbSBiZWluZyB1c2VkIGluIExpbnV4IGtlcm5lbCBk ZXZlbG9wbWVudD8gSXMgaXQgcmVsYXRlZCB0bzoKCi0gVGhlIGNvbXBsZXhpdHkgb2YgdGhlIGxh bmd1YWdlIGZlYXR1cmVzPwoKLSBSdW50aW1lIG92ZXJoZWFkPwoKLSBPciBvdGhlciB0ZWNobmlj YWwgY29uc3RyYWludHM/CgpBZGRpdGlvbmFsbHksIHdoYXQgaXMgeW91ciBwZXJzcGVjdGl2ZSBv biB3aGV0aGVyIG1vZGVybiBDKysgKHVzaW5nIGEgcmVzdHJpY3RlZCBzdWJzZXQgd2l0aG91dCBl eGNlcHRpb25zLCBSVFRJLCBldGMuKSBjb3VsZCBwb3RlbnRpYWxseSBiZSBjb25zaWRlcmVkIGZv ciBmdXR1cmUga2VybmVsIGRldmVsb3BtZW50PwoKVGhhbmsgeW91IGZvciB5b3VyIHRpbWUgYW5k IGZvciB5b3VyIGltbWVuc2UgY29udHJpYnV0aW9ucyB0byB0aGUgb3Blbi1zb3VyY2UgY29tbXVu aXR5LgoKQmVzdCByZWdhcmRzLAoKanVudHoKCgoKCgoKCgoKCgoKCg==