From nobody Sat Feb 7 05:33:03 2026 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (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 38C7439E6F7; Tue, 3 Feb 2026 13:37:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.187 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770125851; cv=none; b=gvbu4zYX2IWxJZtFocBW0JYxqLjNzctzT89kHcVLXVMCDOfv0zj3bBCOkViq7AXbXcjHTPOtpKcsXY7025YC5VQEgh87QWSwbD5fyPYdnnmjrRaJ7JEIGSs3q5Tta+tEjjl3L4xNTHu5A2jVnoUNJeg6rFYuactoZ8ODyWJvymo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770125851; c=relaxed/simple; bh=qS2x3F/8cFI+ELoaVYDZ8iYLMzffKK/qG4KoEHB6l3s=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=PNVzAnROwdzuSI8tGjCTirf0G/Cod2OsDBb9Tu1MKX5kQRTEpNM4X2wk3DjKnanth+t2Jk/rOO13UhsvB0zt1Y8jTtBzZCGz2yuwWmTRuJ1SbwivAf0jwL8JmEnXtvDBE3gqvCIGQWdZMPVQS8PphhcYoCdec/KbkV7jwYuIjTw= 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=xk66DhOL; dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com header.b=xk66DhOL; arc=none smtp.client-ip=45.249.212.187 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="xk66DhOL"; dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com header.b="xk66DhOL" dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=erWUjRao2Zx1+i5q8wSy3eoXEKihQXOYvBUj5KhjsUw=; b=xk66DhOLN81nQjlEgWG43Ir5X/TRRy3x05MfEPUryObaxDJxIG6GQUOA5nkuEJR0UWdw9Eg6L MmCMDfpdpL7jLlL3Cqeuw7P37VmMzs5UE3XzZOxLGC8abtF+WTKO9YpG2/ruXPbPNKIaAMVuDcE ozpT6xBaNaff10HikiHPZ60= Received: from canpmsgout01.his.huawei.com (unknown [172.19.92.178]) by szxga01-in.huawei.com (SkyGuard) with ESMTPS id 4f54Jf667cz1BG4j; Tue, 3 Feb 2026 21:36:34 +0800 (CST) dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=erWUjRao2Zx1+i5q8wSy3eoXEKihQXOYvBUj5KhjsUw=; b=xk66DhOLN81nQjlEgWG43Ir5X/TRRy3x05MfEPUryObaxDJxIG6GQUOA5nkuEJR0UWdw9Eg6L MmCMDfpdpL7jLlL3Cqeuw7P37VmMzs5UE3XzZOxLGC8abtF+WTKO9YpG2/ruXPbPNKIaAMVuDcE ozpT6xBaNaff10HikiHPZ60= Received: from mail.maildlp.com (unknown [172.19.163.0]) by canpmsgout01.his.huawei.com (SkyGuard) with ESMTPS id 4f54DN2zxrz1T4jY; Tue, 3 Feb 2026 21:32:52 +0800 (CST) Received: from dggpemf500011.china.huawei.com (unknown [7.185.36.131]) by mail.maildlp.com (Postfix) with ESMTPS id 9EC7F4036C; Tue, 3 Feb 2026 21:37:13 +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, 3 Feb 2026 21:37:11 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH v12 06/13] arm64/ptrace: Use syscall_get_arguments() helper Date: Tue, 3 Feb 2026 21:37:21 +0800 Message-ID: <20260203133728.848283-7-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260203133728.848283-1-ruanjinjie@huawei.com> References: <20260203133728.848283-1-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: kwepems200002.china.huawei.com (7.221.188.68) To dggpemf500011.china.huawei.com (7.185.36.131) Content-Type: text/plain; charset="utf-8" The generic entry check audit context first and use syscall_get_arguments() helper. In order to switch to the generic entry for arm64, - Also use syscall_get_arguments() to get audit_syscall_entry()'s last four parameters. - Extract the syscall_enter_audit() helper to make it clear. - Check audit context first, which saves an unnecessary memcpy when current process's audit_context is NULL. Overall these changes make syscall_enter_audit() exactly equivalent to the generic one. No functional changes. 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 5a7e97e94358..e3dcadf13e99 100644 --- a/arch/arm64/kernel/ptrace.c +++ b/arch/arm64/kernel/ptrace.c @@ -2407,6 +2407,16 @@ 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; @@ -2438,8 +2448,7 @@ 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