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* [PATCH] sysctl: add register_sysctl() dummy helper
@ 2017-11-06 13:36 Arnd Bergmann
  2017-11-06 16:50 ` Dave Martin
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Arnd Bergmann @ 2017-11-06 13:36 UTC (permalink / raw)
  To: Catalin Marinas, Will Deacon, Luis R. Rodriguez, Kees Cook
  Cc: Alex Bennée, Dave Martin, Arnd Bergmann, Eric W. Biederman,
	Andrew Morton, Thomas Gleixner, linux-kernel, linux-fsdevel

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

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2017-11-07  1:01 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-11-06 13:36 [PATCH] sysctl: add register_sysctl() dummy helper Arnd Bergmann
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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