xfrm: Remove useless xfrm_audit struct.

Commit f1370cc4 "xfrm: Remove useless secid field from xfrm_audit." changed
"struct xfrm_audit" to have either
{ audit_get_loginuid(current) / audit_get_sessionid(current) } or
{ INVALID_UID / -1 } pair.

This means that we can represent "struct xfrm_audit" as "bool".
This patch replaces "struct xfrm_audit" argument with "bool".

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

1 files changed, 19 insertions, 23 deletions

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 882889eb156b..721e9c3b11bd 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -691,12 +691,6 @@ struct xfrm_spi_skb_cb {
 
 #define XFRM_SPI_SKB_CB(__skb) ((struct xfrm_spi_skb_cb *)&((__skb)->cb[0]))
 
-/* Audit Information */
-struct xfrm_audit {
-        kuid_t  loginuid;
-        unsigned int sessionid;
-};
-
 #ifdef CONFIG_AUDITSYSCALL
 static inline struct audit_buffer *xfrm_audit_start(const char *op)
 {
@@ -712,22 +706,24 @@ static inline struct audit_buffer *xfrm_audit_start(const char *op)
         return audit_buf;
 }
 
-static inline void xfrm_audit_helper_usrinfo(kuid_t auid, unsigned int ses,
+static inline void xfrm_audit_helper_usrinfo(bool task_valid,
                                              struct audit_buffer *audit_buf)
 {
-        audit_log_format(audit_buf, " auid=%u ses=%u",
-                         from_kuid(&init_user_ns, auid), ses);
+        const unsigned int auid = from_kuid(&init_user_ns, task_valid ?
+                                            audit_get_loginuid(current) :
+                                            INVALID_UID);
+        const unsigned int ses = task_valid ? audit_get_sessionid(current) :
+                (unsigned int) -1;
+
+        audit_log_format(audit_buf, " auid=%u ses=%u", auid, ses);
         audit_log_task_context(audit_buf);
 }
 
-void xfrm_audit_policy_add(struct xfrm_policy *xp, int result, kuid_t auid,
-                           unsigned int ses);
-void xfrm_audit_policy_delete(struct xfrm_policy *xp, int result, kuid_t auid,
-                              unsigned int ses);
-void xfrm_audit_state_add(struct xfrm_state *x, int result, kuid_t auid,
-                          unsigned int ses);
-void xfrm_audit_state_delete(struct xfrm_state *x, int result, kuid_t auid,
-                             unsigned int ses);
+void xfrm_audit_policy_add(struct xfrm_policy *xp, int result, bool task_valid);
+void xfrm_audit_policy_delete(struct xfrm_policy *xp, int result,
+                              bool task_valid);
+void xfrm_audit_state_add(struct xfrm_state *x, int result, bool task_valid);
+void xfrm_audit_state_delete(struct xfrm_state *x, int result, bool task_valid);
 void xfrm_audit_state_replay_overflow(struct xfrm_state *x,
                                       struct sk_buff *skb);
 void xfrm_audit_state_replay(struct xfrm_state *x, struct sk_buff *skb,
@@ -740,22 +736,22 @@ void xfrm_audit_state_icvfail(struct xfrm_state *x, struct sk_buff *skb,
 #else
 
 static inline void xfrm_audit_policy_add(struct xfrm_policy *xp, int result,
-                                  kuid_t auid, unsigned int ses)
+                                         bool task_valid)
 {
 }
 
 static inline void xfrm_audit_policy_delete(struct xfrm_policy *xp, int result,
-                                  kuid_t auid, unsigned int ses)
+                                            bool task_valid)
 {
 }
 
 static inline void xfrm_audit_state_add(struct xfrm_state *x, int result,
-                                 kuid_t auid, unsigned int ses)
+                                        bool task_valid)
 {
 }
 
 static inline void xfrm_audit_state_delete(struct xfrm_state *x, int result,
-                                    kuid_t auid, unsigned int ses)
+                                           bool task_valid)
 {
 }
 
@@ -1499,7 +1495,7 @@ struct xfrmk_spdinfo {
 
 struct xfrm_state *xfrm_find_acq_byseq(struct net *net, u32 mark, u32 seq);
 int xfrm_state_delete(struct xfrm_state *x);
-int xfrm_state_flush(struct net *net, u8 proto, struct xfrm_audit *audit_info);
+int xfrm_state_flush(struct net *net, u8 proto, bool task_valid);
 void xfrm_sad_getinfo(struct net *net, struct xfrmk_sadinfo *si);
 void xfrm_spd_getinfo(struct net *net, struct xfrmk_spdinfo *si);
 u32 xfrm_replay_seqhi(struct xfrm_state *x, __be32 net_seq);
@@ -1594,7 +1590,7 @@ struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net, u32 mark,
                                           int *err);
 struct xfrm_policy *xfrm_policy_byid(struct net *net, u32 mark, u8, int dir,
                                      u32 id, int delete, int *err);
-int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info);
+int xfrm_policy_flush(struct net *net, u8 type, bool task_valid);
 u32 xfrm_get_acqseq(void);
 int verify_spi_info(u8 proto, u32 min, u32 max);
 int xfrm_alloc_spi(struct xfrm_state *x, u32 minspi, u32 maxspi);