From: Arnd Bergmann <arnd@xxxxxxxx>
Subject: sysctl: add register_sysctl() dummy helper
register_sysctl() 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().
Link: http://lkml.kernel.org/r/20171106133700.558647-1-arnd@xxxxxxxx
Fixes: 38b9aeb32fa7 ("arm64: Port deprecated instruction emulation to new sysctl interface")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Reviewed-by: Dave Martin <Dave.Martin@xxxxxxx>
Acked-by: Kees Cook <keescook@xxxxxxxxxxxx>
Acked-by: Will Deacon <will.deacon@xxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: "Luis R. Rodriguez" <mcgrof@xxxxxxxxxx>
Cc: Alex Benne <alex.bennee@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/sysctl.h | 5 +++++
1 file changed, 5 insertions(+)
diff -puN include/linux/sysctl.h~sysctl-add-register_sysctl-dummy-helper include/linux/sysctl.h
--- a/include/linux/sysctl.h~sysctl-add-register_sysctl-dummy-helper
+++ a/include/linux/sysctl.h
@@ -213,6 +213,11 @@ static inline struct ctl_table_header *r
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)
{
}
_
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