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From: Arnd Bergmann <arnd@arndb.de>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	"Luis R. Rodriguez" <mcgrof@kernel.org>,
	Kees Cook <keescook@chromium.org>
Cc: "Alex Bennée" <alex.bennee@linaro.org>,
	"Dave Martin" <Dave.Martin@arm.com>,
	"Arnd Bergmann" <arnd@arndb.de>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: [PATCH] sysctl: add register_sysctl() dummy helper
Date: Mon,  6 Nov 2017 14:36:40 +0100	[thread overview]
Message-ID: <20171106133700.558647-1-arnd@arndb.de> (raw)

The register_sysctl() function has been around for five years with commit
fea478d4101a ("sysctl: Add register_sysctl for normal sysctl users")
but now that arm64 started using it, I ran into a compile error:

arch/arm64/kernel/armv8_deprecated.c: In function 'register_insn_emulation_sysctl':
arch/arm64/kernel/armv8_deprecated.c:257:2: error: implicit declaration of function 'register_sysctl'

This adds a inline function like we already have for register_sysctl_paths()
and register_sysctl_table().

Fixes: 38b9aeb32fa7 ("arm64: Port deprecated instruction emulation to new sysctl interface")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
This should probably get merged through the arm64 tree to avoid
bisection problems.
---
 include/linux/sysctl.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index fabe15e51c56..992bc9948232 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -216,6 +216,11 @@ static inline struct ctl_table_header *register_sysctl_paths(
 	return NULL;
 }
 
+static inline struct ctl_table_header *register_sysctl(const char *path, struct ctl_table *table)
+{
+	return NULL;
+}
+
 static inline void unregister_sysctl_table(struct ctl_table_header * table)
 {
 }
-- 
2.9.0

             reply	other threads:[~2017-11-06 13:38 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-06 13:36 Arnd Bergmann [this message]
2017-11-06 16:50 ` Dave Martin
2017-11-06 17:12   ` Arnd Bergmann
2017-11-06 17:41     ` Dave Martin
2017-11-06 20:36       ` Arnd Bergmann
2017-11-06 16:51 ` Kees Cook
2017-11-07  1:01 ` Will Deacon

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