security: remove unused security_sysctl hook

The only user for this hook was selinux. sysctl routes every call
through /proc/sys/. Selinux and other security modules use the file
system checks for sysctl too, so no need for this hook any more.

Signed-off-by: Lucian Adrian Grijincu <lucian.grijincu@gmail.com>
Signed-off-by: Eric Paris <eparis@redhat.com>

2 files changed, 0 insertions, 11 deletions

diff --git a/security/capability.c b/security/capability.c
index 383d14dc12ef..85b67c8632df 100644
--- a/security/capability.c
+++ b/security/capability.c
@@ -12,11 +12,6 @@
 
 #include <linux/security.h>
 
-static int cap_sysctl(ctl_table *table, int op)
-{
-        return 0;
-}
-
 static int cap_syslog(int type)
 {
         return 0;
@@ -881,7 +876,6 @@ void __init security_fixup_ops(struct security_operations *ops)
         set_to_cap_if_null(ops, capable);
         set_to_cap_if_null(ops, quotactl);
         set_to_cap_if_null(ops, quota_on);
-        set_to_cap_if_null(ops, sysctl);
         set_to_cap_if_null(ops, syslog);
         set_to_cap_if_null(ops, settime);
         set_to_cap_if_null(ops, vm_enough_memory);
diff --git a/security/security.c b/security/security.c
index 4830f36e1ab5..8f28685ee0d9 100644
--- a/security/security.c
+++ b/security/security.c
@@ -182,11 +182,6 @@ int security_real_capable_noaudit(struct task_struct *tsk, int cap)
         return ret;
 }
 
-int security_sysctl(struct ctl_table *table, int op)
-{
-        return security_ops->sysctl(table, op);
-}
-
 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
 {
         return security_ops->quotactl(cmds, type, id, sb);