lsm_audit: don't specify the audit pre/post callbacks in 'struct common_audit_data'

It just bloats the audit data structure for no good reason, since the
only time those fields are filled are just before calling the
common_lsm_audit() function, which is also the only user of those
fields.

So just make them be the arguments to common_lsm_audit(), rather than
bloating that structure that is passed around everywhere, and is
initialized in hot paths.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h
index d1b073ffec24..fad48aab893b 100644
--- a/include/linux/lsm_audit.h
+++ b/include/linux/lsm_audit.h
@@ -82,9 +82,6 @@ struct common_audit_data {
                 struct apparmor_audit_data *apparmor_audit_data;
 #endif
         }; /* per LSM data pointer union */
-        /* these callback will be implemented by a specific LSM */
-        void (*lsm_pre_audit)(struct audit_buffer *, void *);
-        void (*lsm_post_audit)(struct audit_buffer *, void *);
 };
 
 #define v4info fam.v4
@@ -101,6 +98,8 @@ int ipv6_skb_to_auditdata(struct sk_buff *skb,
         { memset((_d), 0, sizeof(struct common_audit_data)); \
          (_d)->type = LSM_AUDIT_DATA_##_t; }
 
-void common_lsm_audit(struct common_audit_data *a);
+void common_lsm_audit(struct common_audit_data *a,
+        void (*pre_audit)(struct audit_buffer *, void *),
+        void (*post_audit)(struct audit_buffer *, void *));
 
 #endif