From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3197FCA1009 for ; Tue, 2 Sep 2025 21:42:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Reply-To:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To: References:Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version: Subject:Date:From:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=NFUYt3i/HjlfIM6x2iSeVP5vONULlILgMBY0oUuSx0k=; b=i0onA85hQZbcVj2qyPYQfQ6x++ 292Sb2bS4L/M8phgsA5i/Spc5qs0pvw5zH0rODRlS4MDUe4ALmFxNAjC4nmAtJsrL6G7larnw8kPL tILIJjuD1+mFol+M408B5RIQsAHZj0ZjnR4giL7jiaeEjnG21/pljFUEm2jR3BIxv0xbyAfWqeqbQ pr2lxgIDnIzeLyH+ko30JxfuYpfyFk5pJYs8+svkW9832sK+P0dcDNjYDGlw+2kfZMQUJhSYoZRig 7HPd6JGmAlElbgThVvlQw0vECS9eXXW94aF8XD7h1YEB3aqSjAvNriKgaqnFb7v+uieFQo0AEbjy5 19zLXkJg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1utYlq-00000002ABg-1fzD; Tue, 02 Sep 2025 21:42:30 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1ut4JA-0000000CdqV-1maS; Mon, 01 Sep 2025 13:10:52 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 29B39601F2; Mon, 1 Sep 2025 13:10:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 8DCC2C2BCB4; Mon, 1 Sep 2025 13:10:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1756732249; bh=bn11Mcm9rcT+MQQ0Xp201gsG19m4YqCNUtE/9w0wOKQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=KRZi3sS9oPatGmfq2hHozBvMYdfgtjqHP1O+4MZw4/W8FlW7VF6WwhhBhP8gEUdr6 kDPZQSF5ohlsPOwQhgAE1+Wk5UB9+ElpMclkA5GVsgxNbWhX+7et5sGWktdFTwvAK2 A/qgST9yyRvOAjwZRVt1dH+cIr4hrQIIbJ0JrA5uByNUPwoOn8T8Sott9iBCClOY+s MwhzTvqSmWrwkaOFxUQdxJVuOHazoI6Yc033Fo3Lu8JjJ12XSnw2Uf67bntnAvM0xA eO5W+0zeQcGO4jiXKuN2Vw7x9S9NUkeJiMMze1z5n2vM4z6XPFk8uxLpiruWmqyFwh Q+/2eVXQgxpzg== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 697A5CA1007; Mon, 1 Sep 2025 13:10:49 +0000 (UTC) From: Simon Schuster via B4 Relay Date: Mon, 01 Sep 2025 15:09:52 +0200 Subject: [PATCH v2 3/4] arch: copy_thread: pass clone_flags as u64 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250901-nios2-implement-clone3-v2-3-53fcf5577d57@siemens-energy.com> References: <20250901-nios2-implement-clone3-v2-0-53fcf5577d57@siemens-energy.com> In-Reply-To: <20250901-nios2-implement-clone3-v2-0-53fcf5577d57@siemens-energy.com> To: Dinh Nguyen , Christian Brauner , Arnd Bergmann , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Kees Cook , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Guo Ren , Oleg Nesterov , Jens Axboe , Alexander Viro , Jan Kara , Tejun Heo , Johannes Weiner , =?utf-8?q?Michal_Koutn=C3=BD?= , Paul Moore , Serge Hallyn , James Morris , "Serge E. Hallyn" , Anna-Maria Behnsen , Frederic Weisbecker , Thomas Gleixner , Masami Hiramatsu , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Mathieu Desnoyers , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , John Johansen , Stephen Smalley , Ondrej Mosnacek , Kentaro Takeda , Tetsuo Handa , Richard Henderson , Matt Turner , Vineet Gupta , Russell King , Catalin Marinas , Will Deacon , Brian Cain , Huacai Chen , WANG Xuerui , Geert Uytterhoeven , Michal Simek , Thomas Bogendoerfer , Jonas Bonn , Stefan Kristiansson , Stafford Horne , "James E.J. Bottomley" , Helge Deller , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz , Andreas Larsson , Richard Weinberger , Anton Ivanov , Johannes Berg , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Chris Zankel , Max Filippov Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-csky@vger.kernel.org, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, cgroups@vger.kernel.org, linux-security-module@vger.kernel.org, linux-trace-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-perf-users@vger.kernel.org, apparmor@lists.ubuntu.com, selinux@vger.kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, Simon Schuster X-Mailer: b4 0.14.3-dev-2ce6c X-Developer-Signature: v=1; a=ed25519-sha256; t=1756732247; l=16540; i=schuster.simon@siemens-energy.com; s=20250818; h=from:subject:message-id; bh=Y3a/SqNexPbCaZWJBpdYeJq+/IM8XgQTim9rBfKHiaA=; b=UjI5dxbF8m/bKhCNWgu/x71TjwpiyMXHU3gmg9s7/nOiVWKAXB66aimoxuWTlDPPa26oUbNcf kv5epNY+XY6CCqxvFt/3W0br9TEi4ANevDDyK0PBDev3N7SAYA7IWjA X-Developer-Key: i=schuster.simon@siemens-energy.com; a=ed25519; pk=PUhOMiSp43aSeRE1H41KApxYOluamBFFiMfKlBjocvo= X-Endpoint-Received: by B4 Relay for schuster.simon@siemens-energy.com/20250818 with auth_id=495 X-Original-From: Simon Schuster X-Mailman-Approved-At: Tue, 02 Sep 2025 11:45:36 -0700 X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: schuster.simon@siemens-energy.com Sender: "linux-um" Errors-To: linux-um-bounces+linux-um=archiver.kernel.org@lists.infradead.org From: Simon Schuster With the introduction of clone3 in commit 7f192e3cd316 ("fork: add clone3") the effective bit width of clone_flags on all architectures was increased from 32-bit to 64-bit, with a new type of u64 for the flags. However, for most consumers of clone_flags the interface was not changed from the previous type of unsigned long. While this works fine as long as none of the new 64-bit flag bits (CLONE_CLEAR_SIGHAND and CLONE_INTO_CGROUP) are evaluated, this is still undesirable in terms of the principle of least surprise. Thus, this commit fixes all relevant interfaces of the copy_thread function that is called from copy_process to consistently pass clone_flags as u64, so that no truncation to 32-bit integers occurs on 32-bit architectures. Signed-off-by: Simon Schuster --- arch/alpha/kernel/process.c | 2 +- arch/arc/kernel/process.c | 2 +- arch/arm/kernel/process.c | 2 +- arch/arm64/kernel/process.c | 2 +- arch/csky/kernel/process.c | 2 +- arch/hexagon/kernel/process.c | 2 +- arch/loongarch/kernel/process.c | 2 +- arch/m68k/kernel/process.c | 2 +- arch/microblaze/kernel/process.c | 2 +- arch/mips/kernel/process.c | 2 +- arch/nios2/kernel/process.c | 2 +- arch/openrisc/kernel/process.c | 2 +- arch/parisc/kernel/process.c | 2 +- arch/powerpc/kernel/process.c | 2 +- arch/riscv/kernel/process.c | 2 +- arch/s390/kernel/process.c | 2 +- arch/sh/kernel/process_32.c | 2 +- arch/sparc/kernel/process_32.c | 2 +- arch/sparc/kernel/process_64.c | 2 +- arch/um/kernel/process.c | 2 +- arch/x86/include/asm/fpu/sched.h | 2 +- arch/x86/include/asm/shstk.h | 4 ++-- arch/x86/kernel/fpu/core.c | 2 +- arch/x86/kernel/process.c | 2 +- arch/x86/kernel/shstk.c | 2 +- arch/xtensa/kernel/process.c | 2 +- 26 files changed, 27 insertions(+), 27 deletions(-) diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index 582d96548385..06522451f018 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -231,7 +231,7 @@ flush_thread(void) */ int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; extern void ret_from_fork(void); diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c index 186ceab661eb..8166d0908713 100644 --- a/arch/arc/kernel/process.c +++ b/arch/arc/kernel/process.c @@ -166,7 +166,7 @@ asmlinkage void ret_from_fork(void); */ int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; struct pt_regs *c_regs; /* child's pt_regs */ diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index e16ed102960c..d7aa95225c70 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -234,7 +234,7 @@ asmlinkage void ret_from_fork(void) __asm__("ret_from_fork"); int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long stack_start = args->stack; unsigned long tls = args->tls; struct thread_info *thread = task_thread_info(p); diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 96482a1412c6..fba7ca102a8c 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -409,7 +409,7 @@ asmlinkage void ret_from_fork(void) asm("ret_from_fork"); int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long stack_start = args->stack; unsigned long tls = args->tls; struct pt_regs *childregs = task_pt_regs(p); diff --git a/arch/csky/kernel/process.c b/arch/csky/kernel/process.c index 0c6e4b17fe00..a7a90340042a 100644 --- a/arch/csky/kernel/process.c +++ b/arch/csky/kernel/process.c @@ -32,7 +32,7 @@ void flush_thread(void){} int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; struct switch_stack *childstack; diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c index 2a77bfd75694..15b4992bfa29 100644 --- a/arch/hexagon/kernel/process.c +++ b/arch/hexagon/kernel/process.c @@ -52,7 +52,7 @@ void arch_cpu_idle(void) */ int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; struct thread_info *ti = task_thread_info(p); diff --git a/arch/loongarch/kernel/process.c b/arch/loongarch/kernel/process.c index 3582f591bab2..efd9edf65603 100644 --- a/arch/loongarch/kernel/process.c +++ b/arch/loongarch/kernel/process.c @@ -167,7 +167,7 @@ int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) unsigned long childksp; unsigned long tls = args->tls; unsigned long usp = args->stack; - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; struct pt_regs *childregs, *regs = current_pt_regs(); childksp = (unsigned long)task_stack_page(p) + THREAD_SIZE; diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c index fda7eac23f87..f5a07a70e938 100644 --- a/arch/m68k/kernel/process.c +++ b/arch/m68k/kernel/process.c @@ -141,7 +141,7 @@ asmlinkage int m68k_clone3(struct pt_regs *regs) int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; struct fork_frame { diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c index 56342e11442d..6cbf642d7b80 100644 --- a/arch/microblaze/kernel/process.c +++ b/arch/microblaze/kernel/process.c @@ -54,7 +54,7 @@ void flush_thread(void) int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; struct pt_regs *childregs = task_pt_regs(p); diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 02aa6a04a21d..29191fa1801e 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -107,7 +107,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) */ int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; struct thread_info *ti = task_thread_info(p); diff --git a/arch/nios2/kernel/process.c b/arch/nios2/kernel/process.c index f84021303f6a..151404139085 100644 --- a/arch/nios2/kernel/process.c +++ b/arch/nios2/kernel/process.c @@ -101,7 +101,7 @@ void flush_thread(void) int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; struct pt_regs *childregs = task_pt_regs(p); diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c index eef99fee2110..73ffb9fa3118 100644 --- a/arch/openrisc/kernel/process.c +++ b/arch/openrisc/kernel/process.c @@ -165,7 +165,7 @@ extern asmlinkage void ret_from_fork(void); int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; struct pt_regs *userregs; diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index ed93bd8c1545..e64ab5d2a40d 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -201,7 +201,7 @@ arch_initcall(parisc_idle_init); int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; struct pt_regs *cregs = &(p->thread.regs); diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 855e09886503..eb23966ac0a9 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1805,7 +1805,7 @@ int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) f = ret_from_kernel_user_thread; } else { struct pt_regs *regs = current_pt_regs(); - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; /* Copy registers */ diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c index a0a40889d79a..31a392993cb4 100644 --- a/arch/riscv/kernel/process.c +++ b/arch/riscv/kernel/process.c @@ -223,7 +223,7 @@ asmlinkage void ret_from_fork_user(struct pt_regs *regs) int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; struct pt_regs *childregs = task_pt_regs(p); diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index f55f09cda6f8..b107dbca4ed7 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -106,7 +106,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long new_stackp = args->stack; unsigned long tls = args->tls; struct fake_frame diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index 92b6649d4929..62f753a85b89 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -89,7 +89,7 @@ asmlinkage void ret_from_kernel_thread(void); int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; struct thread_info *ti = task_thread_info(p); diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c index 9c7c662cb565..5a28c0e91bf1 100644 --- a/arch/sparc/kernel/process_32.c +++ b/arch/sparc/kernel/process_32.c @@ -260,7 +260,7 @@ extern void ret_from_kernel_thread(void); int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long sp = args->stack; unsigned long tls = args->tls; struct thread_info *ti = task_thread_info(p); diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c index 529adfecd58c..25781923788a 100644 --- a/arch/sparc/kernel/process_64.c +++ b/arch/sparc/kernel/process_64.c @@ -567,7 +567,7 @@ void fault_in_user_windows(struct pt_regs *regs) */ int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long sp = args->stack; unsigned long tls = args->tls; struct thread_info *t = task_thread_info(p); diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index 1be644de9e41..9c9c66dc45f0 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -143,7 +143,7 @@ static void fork_handler(void) int copy_thread(struct task_struct * p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long sp = args->stack; unsigned long tls = args->tls; void (*handler)(void); diff --git a/arch/x86/include/asm/fpu/sched.h b/arch/x86/include/asm/fpu/sched.h index c060549c6c94..89004f4ca208 100644 --- a/arch/x86/include/asm/fpu/sched.h +++ b/arch/x86/include/asm/fpu/sched.h @@ -11,7 +11,7 @@ extern void save_fpregs_to_fpstate(struct fpu *fpu); extern void fpu__drop(struct task_struct *tsk); -extern int fpu_clone(struct task_struct *dst, unsigned long clone_flags, bool minimal, +extern int fpu_clone(struct task_struct *dst, u64 clone_flags, bool minimal, unsigned long shstk_addr); extern void fpu_flush_thread(void); diff --git a/arch/x86/include/asm/shstk.h b/arch/x86/include/asm/shstk.h index ba6f2fe43848..0f50e0125943 100644 --- a/arch/x86/include/asm/shstk.h +++ b/arch/x86/include/asm/shstk.h @@ -16,7 +16,7 @@ struct thread_shstk { long shstk_prctl(struct task_struct *task, int option, unsigned long arg2); void reset_thread_features(void); -unsigned long shstk_alloc_thread_stack(struct task_struct *p, unsigned long clone_flags, +unsigned long shstk_alloc_thread_stack(struct task_struct *p, u64 clone_flags, unsigned long stack_size); void shstk_free(struct task_struct *p); int setup_signal_shadow_stack(struct ksignal *ksig); @@ -28,7 +28,7 @@ static inline long shstk_prctl(struct task_struct *task, int option, unsigned long arg2) { return -EINVAL; } static inline void reset_thread_features(void) {} static inline unsigned long shstk_alloc_thread_stack(struct task_struct *p, - unsigned long clone_flags, + u64 clone_flags, unsigned long stack_size) { return 0; } static inline void shstk_free(struct task_struct *p) {} static inline int setup_signal_shadow_stack(struct ksignal *ksig) { return 0; } diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c index aefd412a23dc..1f71cc135e9a 100644 --- a/arch/x86/kernel/fpu/core.c +++ b/arch/x86/kernel/fpu/core.c @@ -631,7 +631,7 @@ static int update_fpu_shstk(struct task_struct *dst, unsigned long ssp) } /* Clone current's FPU state on fork */ -int fpu_clone(struct task_struct *dst, unsigned long clone_flags, bool minimal, +int fpu_clone(struct task_struct *dst, u64 clone_flags, bool minimal, unsigned long ssp) { /* diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 1b7960cf6eb0..e3a3987b0c4f 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -159,7 +159,7 @@ __visible void ret_from_fork(struct task_struct *prev, struct pt_regs *regs, int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long sp = args->stack; unsigned long tls = args->tls; struct inactive_task_frame *frame; diff --git a/arch/x86/kernel/shstk.c b/arch/x86/kernel/shstk.c index 2ddf23387c7e..5eba6c5a6775 100644 --- a/arch/x86/kernel/shstk.c +++ b/arch/x86/kernel/shstk.c @@ -191,7 +191,7 @@ void reset_thread_features(void) current->thread.features_locked = 0; } -unsigned long shstk_alloc_thread_stack(struct task_struct *tsk, unsigned long clone_flags, +unsigned long shstk_alloc_thread_stack(struct task_struct *tsk, u64 clone_flags, unsigned long stack_size) { struct thread_shstk *shstk = &tsk->thread.shstk; diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c index 7bd66677f7b6..94d43f44be13 100644 --- a/arch/xtensa/kernel/process.c +++ b/arch/xtensa/kernel/process.c @@ -267,7 +267,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp_thread_fn = args->stack; unsigned long tls = args->tls; struct pt_regs *childregs = task_pt_regs(p); -- 2.39.5