[PATCH v3 1/6] panic: Separate sysctl logic from CONFIG_SMP

From: Kees Cook <keescook@chromium.org>
To: Jann Horn <jannh@google.com>
Cc: Kees Cook <keescook@chromium.org>, Petr Mladek <pmladek@suse.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	tangmeng <tangmeng@uniontech.com>,
	"Guilherme G. Piccoli" <gpiccoli@igalia.com>,
	Tiezhu Yang <yangtiezhu@loongson.cn>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Luis Chamberlain <mcgrof@kernel.org>,
	Seth Jenkins <sethjenkins@google.com>,
	Greg KH <gregkh@linuxfoundation.org>,
	Linus Torvalds <torvalds@linuxfoundation.org>,
	Andy Lutomirski <luto@kernel.org>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Arnd Bergmann <arnd@arndb.de>, Dmitry Vyukov <dvyukov@google.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Juri Lelli <juri.lelli@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Ben Segall <bsegall@google.com>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	Valentin Schneider <vschneid@redhat.com>,
	Andrey Ryabinin <ryabinin.a.a@gmail.com>,
	Alexander Potapenko <glider@google.com>,
	Andrey Konovalov <andreyknvl@gmail.com>,
	Vincenzo Frascino <vincenzo.frascino@arm.com>,
	David Gow <davidgow@google.com>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	Jonathan Corbet <corbet@lwn.net>,
	Baolin Wang <baolin.wang@linux.alibaba.com>,
	"Jason A. Donenfeld" <Jason@zx2c4.com>,
	Eric Biggers <ebiggers@google.com>,
	Huang Ying <ying.huang@intel.com>,
	Anton Vorontsov <anton@enomsg.org>,
	Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
	Laurent Dufour <ldufour@linux.ibm.com>,
	Rob Herring <robh@kernel.org>,
	linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com,
	linux-mm@kvack.org, linux-doc@vger.kernel.org,
	linux-hardening@vger.kernel.org
Subject: [PATCH v3 1/6] panic: Separate sysctl logic from CONFIG_SMP
Date: Thu, 17 Nov 2022 15:43:21 -0800	[thread overview]
Message-ID: <20221117234328.594699-1-keescook@chromium.org> (raw)
In-Reply-To: <20221117233838.give.484-kees@kernel.org>

In preparation for adding more sysctls directly in kernel/panic.c, split
CONFIG_SMP from the logic that adds sysctls.

Cc: Petr Mladek <pmladek@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: tangmeng <tangmeng@uniontech.com>
Cc: "Guilherme G. Piccoli" <gpiccoli@igalia.com>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
 kernel/panic.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/panic.c b/kernel/panic.c
index da323209f583..d843d036651e 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -75,8 +75,9 @@ ATOMIC_NOTIFIER_HEAD(panic_notifier_list);
 
 EXPORT_SYMBOL(panic_notifier_list);
 
-#if defined(CONFIG_SMP) && defined(CONFIG_SYSCTL)
+#ifdef CONFIG_SYSCTL
 static struct ctl_table kern_panic_table[] = {
+#ifdef CONFIG_SMP
 	{
 		.procname       = "oops_all_cpu_backtrace",
 		.data           = &sysctl_oops_all_cpu_backtrace,
@@ -86,6 +87,7 @@ static struct ctl_table kern_panic_table[] = {
 		.extra1         = SYSCTL_ZERO,
 		.extra2         = SYSCTL_ONE,
 	},
+#endif
 	{ }
 };
 
-- 
2.34.1

