From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To: Thomas Gleixner <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>
Cc: "Linus Torvalds" <torvalds@linux-foundation.org>,
"kernel test robot" <lkp@intel.com>,
"Russell King" <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org, x86@kernel.org,
"Madhavan Srinivasan" <maddy@linux.ibm.com>,
"Michael Ellerman" <mpe@ellerman.id.au>,
"Nicholas Piggin" <npiggin@gmail.com>,
"Christophe Leroy" <christophe.leroy@csgroup.eu>,
linuxppc-dev@lists.ozlabs.org, "Paul Walmsley" <pjw@kernel.org>,
"Palmer Dabbelt" <palmer@dabbelt.com>,
linux-riscv@lists.infradead.org,
"Heiko Carstens" <hca@linux.ibm.com>,
"Christian Borntraeger" <borntraeger@linux.ibm.com>,
"Sven Schnelle" <svens@linux.ibm.com>,
linux-s390@vger.kernel.org,
"Andrew Cooper" <andrew.cooper3@citrix.com>,
"Julia Lawall" <Julia.Lawall@inria.fr>,
"Nicolas Palix" <nicolas.palix@imag.fr>,
"Peter Zijlstra" <peterz@infradead.org>,
"Darren Hart" <dvhart@infradead.org>,
"Davidlohr Bueso" <dave@stgolabs.net>,
"André Almeida" <andrealmeid@igalia.com>,
"Alexander Viro" <viro@zeniv.linux.org.uk>,
"Christian Brauner" <brauner@kernel.org>,
"Jan Kara" <jack@suse.cz>,
linux-fsdevel@vger.kernel.org
Subject: Re: [patch V3 02/12] uaccess: Provide ASM GOTO safe wrappers for unsafe_*_user()
Date: Fri, 17 Oct 2025 08:48:33 -0400 [thread overview]
Message-ID: <8901f58d-3c3e-4d22-af7e-e28613a76a16@efficios.com> (raw)
In-Reply-To: <dbf58bbb-9315-49dd-bb10-4e05e368f43a@efficios.com>
On 2025-10-17 08:43, Mathieu Desnoyers wrote:
[... remembering to trim ...]
>> long strnlen_user_nofault(const void __user *unsafe_addr, long count);
>> -#ifndef __get_kernel_nofault
>> +#ifdef arch_get_kernel_nofault
One more thing:
This is removing the leading __ from __get_kernel_nofault, which
AFAIR has a defined semantic about needing explicit checks. Is that
on purpose ? IOW, would you rather have __arch_get_kernel_nofault ?
Thanks,
Mathieu
--
Mathieu Desnoyers
EfficiOS Inc.
https://www.efficios.com
next prev parent reply other threads:[~2025-10-17 12:48 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-17 10:08 [patch V3 00/12] uaccess: Provide and use scopes for user masked access Thomas Gleixner
2025-10-17 10:08 ` [patch V3 01/12] ARM: uaccess: Implement missing __get_user_asm_dword() Thomas Gleixner
2025-10-17 12:36 ` Mathieu Desnoyers
2025-10-17 10:08 ` [patch V3 02/12] uaccess: Provide ASM GOTO safe wrappers for unsafe_*_user() Thomas Gleixner
2025-10-17 12:43 ` Mathieu Desnoyers
2025-10-17 12:48 ` Mathieu Desnoyers [this message]
2025-10-17 10:09 ` [patch V3 03/12] x86/uaccess: Use unsafe wrappers for ASM GOTO Thomas Gleixner
2025-10-17 10:09 ` [patch V3 04/12] powerpc/uaccess: " Thomas Gleixner
2025-10-17 10:09 ` [patch V3 05/12] riscv/uaccess: " Thomas Gleixner
2025-10-17 10:09 ` [patch V3 06/12] s390/uaccess: " Thomas Gleixner
2025-10-17 10:09 ` [patch V3 07/12] uaccess: Provide scoped masked user access regions Thomas Gleixner
2025-10-17 11:08 ` Andrew Cooper
2025-10-17 11:21 ` Thomas Gleixner
2025-10-17 11:29 ` Andrew Cooper
2025-10-17 11:25 ` Peter Zijlstra
2025-10-17 13:23 ` Mathieu Desnoyers
2025-10-20 18:28 ` David Laight
2025-10-21 14:29 ` Thomas Gleixner
2025-10-21 14:42 ` Thomas Gleixner
2025-10-21 20:52 ` David Laight
2025-10-21 14:44 ` Peter Zijlstra
2025-10-21 15:06 ` Linus Torvalds
2025-10-21 15:45 ` Thomas Gleixner
2025-10-21 15:51 ` Linus Torvalds
2025-10-21 18:55 ` David Laight
2025-10-17 10:09 ` [patch V3 08/12] uaccess: Provide put/get_user_masked() Thomas Gleixner
2025-10-17 13:41 ` Mathieu Desnoyers
2025-10-17 13:45 ` Mathieu Desnoyers
2025-10-20 6:50 ` Thomas Gleixner
2025-10-17 10:09 ` [patch V3 09/12] [RFC] coccinelle: misc: Add scoped_masked_$MODE_access() checker script Thomas Gleixner
2025-10-17 10:51 ` Julia Lawall
2025-10-17 10:09 ` [patch V3 10/12] futex: Convert to scoped masked user access Thomas Gleixner
2025-10-17 10:09 ` [patch V3 11/12] x86/futex: " Thomas Gleixner
2025-10-17 13:37 ` Andrew Cooper
2025-10-17 10:09 ` [patch V3 12/12] select: " Thomas Gleixner
2025-10-17 10:35 ` Peter Zijlstra
2025-10-17 11:12 ` Thomas Gleixner
2025-10-17 10:37 ` [patch V3 00/12] uaccess: Provide and use scopes for user masked access Peter Zijlstra
2025-10-17 10:50 ` Andrew Cooper
2025-10-17 12:25 ` Mathieu Desnoyers
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