diff options
authorArnd Bergmann <>2017-11-09 13:38:18 -0800
committerLinus Torvalds <>2017-11-09 17:58:40 -0800
commite609a6b85182f8a479d265839d3ff9aad2e67b18 (patch)
parent3fefc31843cfe2b5f072efe11ed9ccaf6a7a5092 (diff)
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: Fixes: 38b9aeb32fa7 ("arm64: Port deprecated instruction emulation to new sysctl interface") Signed-off-by: Arnd Bergmann <> Reviewed-by: Dave Martin <> Acked-by: Kees Cook <> Acked-by: Will Deacon <> Cc: Catalin Marinas <> Cc: "Luis R. Rodriguez" <> Cc: Alex Benne <> Cc: Arnd Bergmann <> Cc: "Eric W. Biederman" <> Cc: Thomas Gleixner <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 74f91eefeccf..b769ecfcc3bd 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -213,6 +213,11 @@ 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)