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From: Thomas Gleixner <tglx@kernel.org>
To: Oleg Nesterov <oleg@redhat.com>
Cc: "Jinjie Ruan" <ruanjinjie@huawei.com>,
	LKML <linux-kernel@vger.kernel.org>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Mark Rutland" <mark.rutland@arm.com>,
	"Kees Cook" <kees@kernel.org>,
	"Andy Lutomirski" <luto@kernel.org>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Russell King" <linux@armlinux.org.uk>,
	"Catalin Marinas" <catalin.marinas@arm.com>,
	"Guo Ren" <guoren@kernel.org>,
	"Geert Uytterhoeven" <geert@linux-m68k.org>,
	"Thomas Bogendoerfer" <tsbogend@alpha.franken.de>,
	"Helge Deller" <deller@gmx.de>,
	"Yoshinori Sato" <ysato@users.sourceforge.jp>,
	"Richard Weinberger" <richard@nod.at>,
	"Chris Zankel" <chris@zankel.net>,
	linux-arm-kernel@lists.infradead.org,
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	"Michael Ellerman" <mpe@ellerman.id.au>,
	"Shrikanth Hegde" <sshegde@linux.ibm.com>,
	linuxppc-dev@lists.ozlabs.org,
	"Huacai Chen" <chenhuacai@kernel.org>,
	loongarch@lists.linux.dev, "Paul Walmsley" <pjw@kernel.org>,
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	linux-riscv@lists.infradead.org,
	"Sven Schnelle" <svens@linux.ibm.com>,
	linux-s390@vger.kernel.org, x86@kernel.org,
	"Arnd Bergmann" <arnd@arndb.de>,
	"Vineet Gupta" <vgupta@kernel.org>,
	"Will Deacon" <will@kernel.org>, "Brian Cain" <bcain@kernel.org>,
	"Michal Simek" <monstr@monstr.eu>,
	"Dinh Nguyen" <dinguyen@kernel.org>,
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	sparclinux@vger.kernel.org, linux-arch@vger.kernel.org,
	"Michal Suchánek" <msuchanek@suse.de>,
	"Jonathan Corbet" <corbet@lwn.net>,
	linux-doc@vger.kernel.org
Subject: Re: [patch 11/18] seccomp, treewide: Rename and convert __secure_computing() to return boolean
Date: Wed, 08 Jul 2026 23:49:57 +0200	[thread overview]
Message-ID: <87pl0xqhh6.ffs@fw13> (raw)
In-Reply-To: <ak51A77h1YRIl5tz@redhat.com>

On Wed, Jul 08 2026 at 18:04, Oleg Nesterov wrote:
> On 07/08, Thomas Gleixner wrote:
>>
>> On Wed, Jul 08 2026 at 09:43, Jinjie Ruan wrote:
>> >
>> > The return value of __seccomp_filter is checked in the wrong way, check
>> > -1 should be replaced with check false, maybe:
>> >
>> > -               if (__seccomp_filter(this_syscall, true))
>> > -                       return -1;
>> > +               if (!__seccomp_filter(this_syscall, true))
>> > +                       return false;
>
> Or simply
>
> 	return __seccomp_filter(this_syscall, true);
>
> and remove "return true" below ?

Duh. Obvious now that you point it out :)

> Either way, I personally like this change, I was always confused by these -1's.

Welcome to the club!

  reply	other threads:[~2026-07-08 21:50 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-07 19:05 [patch 00/18] entry: Consolidate and rework syscall entry handling Thomas Gleixner
2026-07-07 19:05 ` [patch 01/18] powerpc: Move stack randomization after syscall_enter_from_user_mode() Thomas Gleixner
2026-07-08 14:07   ` Shrikanth Hegde
2026-07-08 17:22   ` Radu Rendec
2026-07-09  1:20   ` Jinjie Ruan
2026-07-09 11:12   ` Philippe Mathieu-Daudé
2026-07-07 19:06 ` [patch 02/18] randomize_kstack: Provide add_random_kstack_offset_irqsoff() Thomas Gleixner
2026-07-08 17:24   ` Radu Rendec
2026-07-09  2:13   ` Jinjie Ruan
2026-07-09 16:23   ` Kees Cook
2026-07-07 19:06 ` [patch 03/18] entry: Provide [syscall_]enter_from_user_mode_randomize_stack() Thomas Gleixner
2026-07-08 17:26   ` Radu Rendec
2026-07-09  2:34   ` Jinjie Ruan
2026-07-09  3:46   ` Jinjie Ruan
2026-07-09 11:15   ` Philippe Mathieu-Daudé
2026-07-07 19:06 ` [patch 04/18] loongarch/syscall: Use syscall_enter_from_user_mode_randomize_stack() Thomas Gleixner
2026-07-08 18:37   ` Radu Rendec
2026-07-09  2:37   ` Jinjie Ruan
2026-07-09 11:15   ` Philippe Mathieu-Daudé
2026-07-07 19:06 ` [patch 05/18] powerpc/syscall: " Thomas Gleixner
2026-07-08 18:35   ` Radu Rendec
2026-07-09  2:38   ` Jinjie Ruan
2026-07-09 11:16   ` Philippe Mathieu-Daudé
2026-07-07 19:06 ` [patch 06/18] riscv/syscall: " Thomas Gleixner
2026-07-08 20:57   ` Radu Rendec
2026-07-09  2:38   ` Jinjie Ruan
2026-07-09 11:16   ` Philippe Mathieu-Daudé
2026-07-07 19:06 ` [patch 07/18] s390/syscall: Use enter_from_user_mode_randomize_stack() Thomas Gleixner
2026-07-08  6:47   ` Sven Schnelle
2026-07-08 20:57   ` Radu Rendec
2026-07-09  2:39   ` Jinjie Ruan
2026-07-09  2:46   ` Jinjie Ruan
2026-07-09 11:17     ` Philippe Mathieu-Daudé
2026-07-07 19:06 ` [patch 08/18] x86/syscall: Use [syscall_]enter_from_user_mode_randomize_stack() Thomas Gleixner
2026-07-08 20:59   ` Radu Rendec
2026-07-09  2:44   ` Jinjie Ruan
2026-07-09 11:18   ` Philippe Mathieu-Daudé
2026-07-07 19:06 ` [patch 09/18] entry: Remove syscall_enter_from_user_mode() Thomas Gleixner
2026-07-08 21:21   ` Radu Rendec
2026-07-08 22:08     ` Thomas Gleixner
2026-07-09  2:49   ` Jinjie Ruan
2026-07-07 19:06 ` [patch 10/18] entry: Use syscall number instead of rereading it Thomas Gleixner
2026-07-08 21:39   ` Radu Rendec
2026-07-09  2:55   ` Jinjie Ruan
2026-07-09 11:20   ` Philippe Mathieu-Daudé
2026-07-09 11:22     ` Philippe Mathieu-Daudé
2026-07-07 19:06 ` [patch 11/18] seccomp, treewide: Rename and convert __secure_computing() to return boolean Thomas Gleixner
2026-07-08  1:43   ` Jinjie Ruan
2026-07-08  9:15     ` Thomas Gleixner
2026-07-08 16:04       ` Oleg Nesterov
2026-07-08 21:49         ` Thomas Gleixner [this message]
2026-07-09 16:22   ` Kees Cook
2026-07-07 19:06 ` [patch 12/18] ptrace, treewide: Rename ptrace_report_syscall_entry() to ptrace_report_syscall_permit_entry() Thomas Gleixner
2026-07-08 15:46   ` Oleg Nesterov
2026-07-09  1:41   ` Jinjie Ruan
2026-07-09  8:41   ` Geert Uytterhoeven
2026-07-09 17:03   ` Radu Rendec
2026-07-07 19:06 ` [patch 13/18] entry: Make trace_syscall_enter() return type bool Thomas Gleixner
2026-07-08 15:52   ` Michal Suchánek
2026-07-08 20:34     ` Thomas Gleixner
2026-07-08 23:14       ` Thomas Gleixner
2026-07-09 16:26         ` David Laight
2026-07-07 19:06 ` [patch 14/18] entry: Make return type of syscall_trace_enter() bool Thomas Gleixner
2026-07-07 19:06 ` [patch 15/18] x86/entry: Make syscall functions static Thomas Gleixner
2026-07-09  1:47   ` Jinjie Ruan
2026-07-07 19:07 ` [patch 16/18] x86/entry: Get rid of the sys_ni_syscall() indirection Thomas Gleixner
2026-07-09  2:03   ` Jinjie Ruan
2026-07-07 19:07 ` [patch 17/18] x86/entry: Simplify the syscall number logic Thomas Gleixner
2026-07-07 19:07 ` [patch 18/18] entry, treewide: Make syscall_enter_from_user_mode[_work]() indicate syscall execution Thomas Gleixner
2026-07-08  5:21   ` Shrikanth Hegde
2026-07-08  9:16     ` Thomas Gleixner

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