From nobody Tue Apr 7 02:36:19 2026 Received: from canpmsgout01.his.huawei.com (canpmsgout01.his.huawei.com [113.46.200.216]) (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 AD090399351; Tue, 17 Mar 2026 08:20:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=113.46.200.216 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773735615; cv=none; b=oRri02CYhGxeJEr+Ma+sMwtFJoIs9pgTbSFq4847uh/GQRe3BYcVN34NTqOL/fnPTQPcvJakeaOLFo/xrIPQqwJe+Yc94bnwqUwu0a0XeCjGPMeDglGDjgdFvyvmvYe9cIYqOvWV39rj/FBCWnoiG6HoordWJ7Mqiw9Zp/HMMXU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773735615; c=relaxed/simple; bh=lprEyZwSvvY7oYLKAef1Q7ik1sFF41UBb5hN8a26DKI=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=rXEJep9PGxBoQ66Ns/P5GnTCohXSaj18BpqVljXWY11tTnWYs04sNFPgwXi2okcpGQ4PNQ/I8bjkHo2wZ/NzEOSN1XSeYCcY7B4xqgK55V8Suy7Ck3ImlWcxdwXkO54MsI/VJdHATq1KEZvvqu/YXYOswn71Z5wu6xMxBsYt1W4= 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=NDABjQXu; arc=none smtp.client-ip=113.46.200.216 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="NDABjQXu" dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=2C3xUm5DjLxc/SIMZ8u7vfUUWnpj82cAfyp1WR99tWc=; b=NDABjQXunNMnlF7oHYKZVrxDBaFs/eqPG52mvXUBJL4aiYZeV11EIZJCWQfKMTgeBBo5G4W0b WBDZuMjPF7dG1A/7Ey1xqEIN3teGKZQG98dhjPZhWUEKRyP98M74TY/54ktv3GNA/53iqP1fKul oghNToMR+H4P0Na21iJ6JYs= Received: from mail.maildlp.com (unknown [172.19.162.140]) by canpmsgout01.his.huawei.com (SkyGuard) with ESMTPS id 4fZlB24TT6z1T4GZ; Tue, 17 Mar 2026 16:14:50 +0800 (CST) Received: from dggpemf500011.china.huawei.com (unknown [7.185.36.131]) by mail.maildlp.com (Postfix) with ESMTPS id 6426720168; Tue, 17 Mar 2026 16:20:10 +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; Tue, 17 Mar 2026 16:20:08 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH v13 RESEND 04/14] arm64/ptrace: Use syscall_get_arguments() helper for audit Date: Tue, 17 Mar 2026 16:20:10 +0800 Message-ID: <20260317082020.737779-5-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260317082020.737779-1-ruanjinjie@huawei.com> References: <20260317082020.737779-1-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: kwepems200001.china.huawei.com (7.221.188.67) 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: Kevin Brodsky Signed-off-by: Jinjie Ruan Reviewed-by: Linus Walleij --- 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 d68f872339c7..3cb497b2bd22 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