From nobody Thu Apr 2 09:30:13 2026 Received: from canpmsgout10.his.huawei.com (canpmsgout10.his.huawei.com [113.46.200.225]) (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 C48E238A702 for ; Fri, 20 Mar 2026 10:25:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=113.46.200.225 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774002331; cv=none; b=c5owwzG93rDsNEYRBNjDjGnu4DObgtN1fAG2xE1Jijk2v4Xh5QmhHnlIDA0dFQ1ZLCENb2yzeRocabNO5/sKLTthpjBbg4dUtrLENNU4SjOPgjgYqHKZaD+cyBHaiO+Ps8QkhEbt2J5zSvsdURsW9zngsKhfI6/WjfVXr3+p53I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774002331; c=relaxed/simple; bh=H+l4yzBhTJZjhsJYbKFBp3/mJNAJpNY8ad6vP0N7cT0=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=QvCzjcQNiCZAUHhCbYqX4Qix+7prXE3bHC4aLESLsGZuCH6m12kHeLISTEhDRgWFdX26vuBlZPOTHQQAQMhhRAN+cH8l8A0P75L6HlQZn3k9jNytb/QFF/NTHIGZRw/XlGHKJU8MEUP6P0q25J5ZuOHFGULb+lrR1gz9qsB6oMs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com header.b=U2soGMTw; arc=none smtp.client-ip=113.46.200.225 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com header.b="U2soGMTw" dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=AqM4dA797NdPBjVX5ZCFGXmoCr2YkFCuKkL3jOGIRwY=; b=U2soGMTwGrWXfKlRiDgBbveTkrQS7Yy3ouwmJ3CkkFaZ38RMpZfubkvGQjtPclwTq7KosaYyh eZVshBIwb/evrC6NfsNjm+9N0b2rwq7yfxH2O2YjQ1ViXQi0JwRdOBa6COIqYdmSIQXcsV4vXkM NhG+aYHU7uY4Ccy/ayFQllY= Received: from mail.maildlp.com (unknown [172.19.163.163]) by canpmsgout10.his.huawei.com (SkyGuard) with ESMTPS id 4fcdpP0gq3z1K98k; Fri, 20 Mar 2026 18:19:25 +0800 (CST) Received: from dggpemf500011.china.huawei.com (unknown [7.185.36.131]) by mail.maildlp.com (Postfix) with ESMTPS id 5D2684048B; Fri, 20 Mar 2026 18:25:25 +0800 (CST) Received: from huawei.com (10.90.53.73) by dggpemf500011.china.huawei.com (7.185.36.131) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Fri, 20 Mar 2026 18:25:24 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v14 04/10] arm64/ptrace: Use syscall_get_arguments() helper for audit Date: Fri, 20 Mar 2026 18:26:14 +0800 Message-ID: <20260320102620.1336796-5-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260320102620.1336796-1-ruanjinjie@huawei.com> References: <20260320102620.1336796-1-ruanjinjie@huawei.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: kwepems100002.china.huawei.com (7.221.188.206) To dggpemf500011.china.huawei.com (7.185.36.131) Content-Type: text/plain; charset="utf-8" Extract syscall_enter_audit() helper and use syscall_get_arguments() to get syscall arguments, matching the generic entry implementation. The new code: - Checks audit_context() first to avoid unnecessary memcpy when audit is not active. - Uses syscall_get_arguments() helper instead of directly accessing regs fields. - Is now exactly equivalent to generic entry's syscall_enter_audit(). No functional changes. Cc: Will Deacon Cc: Catalin Marinas Reviewed-by: Linus Walleij Reviewed-by: Yeoreum Yun Reviewed-by: Kevin Brodsky Signed-off-by: Jinjie Ruan --- arch/arm64/kernel/ptrace.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c index 85b597cac14b..a908e05749c1 100644 --- a/arch/arm64/kernel/ptrace.c +++ b/arch/arm64/kernel/ptrace.c @@ -2408,6 +2408,16 @@ static void report_syscall_exit(struct pt_regs *regs) } } =20 +static inline void syscall_enter_audit(struct pt_regs *regs, long syscall) +{ + if (unlikely(audit_context())) { + unsigned long args[6]; + + syscall_get_arguments(current, regs, args); + audit_syscall_entry(syscall, args[0], args[1], args[2], args[3]); + } +} + int syscall_trace_enter(struct pt_regs *regs, unsigned long flags) { long syscall; @@ -2439,8 +2449,7 @@ int syscall_trace_enter(struct pt_regs *regs, unsigne= d long flags) syscall =3D syscall_get_nr(current, regs); } =20 - audit_syscall_entry(syscall, regs->orig_x0, regs->regs[1], - regs->regs[2], regs->regs[3]); + syscall_enter_audit(regs, syscall); =20 return ret ? : syscall; } --=20 2.34.1