From nobody Thu Dec 18 07:30:11 2025 Received: from mail-yw1-f178.google.com (mail-yw1-f178.google.com [209.85.128.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4810E1EF363 for ; Thu, 13 Mar 2025 18:22:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741890169; cv=none; b=cAQh6xMUArjeB5SqBstIZNmCYT+9Vyl89kve/OWTWR6qvHEA9+ebADJqdjIwktMMS2sbOVnIySvUjr+/ZcPDqmgb+paylYQsT+PNrAaxHdzVRrZuaNysUaJx0AeZ0sIJKl3LsbhKlTxB4VYiKWEtqelkFgjQkXRSwmZncHF4UVw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741890169; c=relaxed/simple; bh=KfIUC6vHrnWsZFhqX8PmZ3NcRke3NRhejMT28SIgMmo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=aq0JDQMC85zexTHY/NHkJtxQ9bIPVZ7Zd5aV7xgDLq7uRdJvnUpWft3Dc3nRFq0vxGh9hUNi0RLO4BNe3nyoviZHn0G9vtyh7+mSPaK+acJEzxWJDqz3f3fwlgjtjbyruf8Z8+olHA/S/FZ/4Vqcm00djwM0gvH0WSdEFIeLbYU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=AKjOtqHG; arc=none smtp.client-ip=209.85.128.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="AKjOtqHG" Received: by mail-yw1-f178.google.com with SMTP id 00721157ae682-6fee50bfea5so13023687b3.1 for ; Thu, 13 Mar 2025 11:22:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1741890167; x=1742494967; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=zhSNGE7xuts5hKV7orGt15bPAyx5e48naMNL2aOpQTE=; b=AKjOtqHGXqji1d0+zKw8h2oUsmsegQbsyOEEUMsUH0p6toTM33zyzwBNoX2eB7HMm7 OvZPZ8ggZvKYRi7wqAs/wIFp0jApwnjA0mZirmTvaRvtu0XehCTv5lSuB8KuSbm81mYt sQNjUZa8voqHRKYhtUmZL2azhkVHkAmnSWVI5/LWgmHk7TWq3pW6dGV2CicL3AnD2zTA LQikY5C4U9QJdgH63r6JcEeYfVHycGu6qnLrSb8kg0sm9RsxagYtNvWGUMDP5fp7rCfF z32ftQvb3GzRIhSrdGgCB71d8eEHclOdkFQY2tTZOe0+o/9fgmCTEVhFO6taSgevLdFu G5lQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1741890167; x=1742494967; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=zhSNGE7xuts5hKV7orGt15bPAyx5e48naMNL2aOpQTE=; b=SZHhcgpAF7ma3At62ZznRBbH9BcoMlkYlhOHLuTeF2DYuDjCxOETYpLqKXWgGoRv55 11hxpqsfNPC8vUg/Nq4GfMJSLWKmhDufkHn1rGu4jMuIL8OYEpnKMQp6WFnBRNaWQ3zk 2UCi2qndko3/kKgESUDh0SsHdlypIbs5HAxLCnYiz//ZZx/uDIKjNcerEuR61nLaJD9F uQfDi/zhcsrF7age7sFoAT1lwSQ9x+40m4A3Zvp2R3Z+ncBNjk2B8s0lFhsLYJMsVBHi a8j/5atVr/sqiExLi9fJCkyOaaeaOW0FlPa5cCxbXrPjCTZhzN54fuk86E/ylJrD+aqu RFFQ== X-Gm-Message-State: AOJu0YzCavT8Rdx3n5X7/wGoewm1dsnvsLVMkWzY9kg4krnSjX7QaaKI scjEZ0FwPr6Xk5h3s/LWJB+I6KIZm8FqkE2KHKDNsBfg3brrYqwEHCZM X-Gm-Gg: ASbGncv/cMmUxc1K5OdBSw2nhkGUaB9IhtofIR5njh+/igESiB0YtAhElGr4tOj6+Qv 6PTNvOCip+Ug3YI+Bm534xYkScbXOGdFJdoUA5r7XFvWhvy/AgCRV4AbUwFcDEtS0BoTYmV/9+D 1uE/YvyUYYgQZdC0PzxAgOeVqgoscu0dYHmow92oQzNGX2uWDSmOv7KrGbsYo+g/klAaY3nA2OA /2d72HGgaHBI4MW42uGjfzPoFCAtuYrWJ8yOC+ctJr4trXcD/dqsl8VNWoNhqljjPaASbQeS56r CIE/o6UIIROC3mF1iB5mOOLsAg== X-Google-Smtp-Source: AGHT+IH9E20QB2aVzr5D7lj1u2ad8uec6Gt0tQ0BuwaWlKmFEiW/LLc9k9ppyBrayEUzn3AHVM+neg== X-Received: by 2002:a05:690c:4807:b0:6fb:b2de:a2bd with SMTP id 00721157ae682-6ff42041178mr8430417b3.16.1741890166693; Thu, 13 Mar 2025 11:22:46 -0700 (PDT) Received: from citadel.lan ([2600:6c4a:4d3f:6d5c::1019]) by smtp.gmail.com with ESMTPSA id 00721157ae682-6ff3288f0absm4910347b3.54.2025.03.13.11.22.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Mar 2025 11:22:46 -0700 (PDT) From: Brian Gerst To: linux-kernel@vger.kernel.org, x86@kernel.org Cc: Ingo Molnar , "H . Peter Anvin" , Thomas Gleixner , Borislav Petkov , Andy Lutomirski , Juergen Gross , Boris Ostrovsky , Brian Gerst Subject: [PATCH 5/5] x86/syscall: Move sys_ni_syscall() Date: Thu, 13 Mar 2025 14:22:36 -0400 Message-ID: <20250313182236.655724-6-brgerst@gmail.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250313182236.655724-1-brgerst@gmail.com> References: <20250313182236.655724-1-brgerst@gmail.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 Content-Type: text/plain; charset="utf-8" Move sys_ni_syscall() to kernel/process.c, and remove the now empty entry/common.c No functional changes. Signed-off-by: Brian Gerst --- arch/x86/entry/Makefile | 3 --- arch/x86/entry/common.c | 38 -------------------------------------- arch/x86/kernel/process.c | 5 +++++ 3 files changed, 5 insertions(+), 41 deletions(-) delete mode 100644 arch/x86/entry/common.c diff --git a/arch/x86/entry/Makefile b/arch/x86/entry/Makefile index e870f8aa936c..72cae8e0ce85 100644 --- a/arch/x86/entry/Makefile +++ b/arch/x86/entry/Makefile @@ -7,16 +7,13 @@ KASAN_SANITIZE :=3D n UBSAN_SANITIZE :=3D n KCOV_INSTRUMENT :=3D n =20 -CFLAGS_REMOVE_common.o =3D $(CC_FLAGS_FTRACE) CFLAGS_REMOVE_syscall_32.o =3D $(CC_FLAGS_FTRACE) CFLAGS_REMOVE_syscall_64.o =3D $(CC_FLAGS_FTRACE) =20 -CFLAGS_common.o +=3D -fno-stack-protector CFLAGS_syscall_32.o +=3D -fno-stack-protector CFLAGS_syscall_64.o +=3D -fno-stack-protector =20 obj-y :=3D entry.o entry_$(BITS).o syscall_$(BITS).o -obj-y +=3D common.o =20 obj-y +=3D vdso/ obj-y +=3D vsyscall/ diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c deleted file mode 100644 index 5bd448c0664f..000000000000 --- a/arch/x86/entry/common.c +++ /dev/null @@ -1,38 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * common.c - C code for kernel entry and exit - * Copyright (c) 2015 Andrew Lutomirski - * - * Based on asm and ptrace code by many authors. The code here originated - * in ptrace.c and signal.c. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -SYSCALL_DEFINE0(ni_syscall) -{ - return -ENOSYS; -} diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 9c75d701011f..91f6ff618852 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -1068,3 +1068,8 @@ SYSCALL_DEFINE2(arch_prctl, int, option, unsigned lon= g, arg2) =20 return -EINVAL; } + +SYSCALL_DEFINE0(ni_syscall) +{ + return -ENOSYS; +} --=20 2.48.1