[IPSEC]: Move type and mode map into xfrm_state.c

The type and mode maps are only used by SAs, not policies.  So it makes
sense to move them from xfrm_policy.c into xfrm_state.c.  This also allows
us to mark xfrm_get_type/xfrm_put_type/xfrm_get_mode/xfrm_put_mode as
static.

The only other change I've made in the move is to get rid of the casts
on the request_module call for types.  They're unnecessary because C
will promote them to ints anyway.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 173 deletions

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index af27c193697..ca24c90d379 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -49,8 +49,6 @@ static DEFINE_SPINLOCK(xfrm_policy_gc_lock);
 
 static struct xfrm_policy_afinfo *xfrm_policy_get_afinfo(unsigned short family);
 static void xfrm_policy_put_afinfo(struct xfrm_policy_afinfo *afinfo);
-static struct xfrm_policy_afinfo *xfrm_policy_lock_afinfo(unsigned int family);
-static void xfrm_policy_unlock_afinfo(struct xfrm_policy_afinfo *afinfo);
 
 static inline int
 __xfrm4_selector_match(struct xfrm_selector *sel, struct flowi *fl)
@@ -86,72 +84,6 @@ int xfrm_selector_match(struct xfrm_selector *sel, struct flowi *fl,
 	return 0;
 }
 
-int xfrm_register_type(struct xfrm_type *type, unsigned short family)
-{
-	struct xfrm_policy_afinfo *afinfo = xfrm_policy_lock_afinfo(family);
-	struct xfrm_type **typemap;
-	int err = 0;
-
-	if (unlikely(afinfo == NULL))
-		return -EAFNOSUPPORT;
-	typemap = afinfo->type_map;
-
-	if (likely(typemap[type->proto] == NULL))
-		typemap[type->proto] = type;
-	else
-		err = -EEXIST;
-	xfrm_policy_unlock_afinfo(afinfo);
-	return err;
-}
-EXPORT_SYMBOL(xfrm_register_type);
-
-int xfrm_unregister_type(struct xfrm_type *type, unsigned short family)
-{
-	struct xfrm_policy_afinfo *afinfo = xfrm_policy_lock_afinfo(family);
-	struct xfrm_type **typemap;
-	int err = 0;
-
-	if (unlikely(afinfo == NULL))
-		return -EAFNOSUPPORT;
-	typemap = afinfo->type_map;
-
-	if (unlikely(typemap[type->proto] != type))
-		err = -ENOENT;
-	else
-		typemap[type->proto] = NULL;
-	xfrm_policy_unlock_afinfo(afinfo);
-	return err;
-}
-EXPORT_SYMBOL(xfrm_unregister_type);
-
-struct xfrm_type *xfrm_get_type(u8 proto, unsigned short family)
-{
-	struct xfrm_policy_afinfo *afinfo;
-	struct xfrm_type **typemap;
-	struct xfrm_type *type;
-	int modload_attempted = 0;
-
-retry:
-	afinfo = xfrm_policy_get_afinfo(family);
-	if (unlikely(afinfo == NULL))
-		return NULL;
-	typemap = afinfo->type_map;
-
-	type = typemap[proto];
-	if (unlikely(type && !try_module_get(type->owner)))
-		type = NULL;
-	if (!type && !modload_attempted) {
-		xfrm_policy_put_afinfo(afinfo);
-		request_module("xfrm-type-%d-%d",
-			       (int) family, (int) proto);
-		modload_attempted = 1;
-		goto retry;
-	}
-
-	xfrm_policy_put_afinfo(afinfo);
-	return type;
-}
-
 int xfrm_dst_lookup(struct xfrm_dst **dst, struct flowi *fl,
 		    unsigned short family)
 {
@@ -170,94 +102,6 @@ int xfrm_dst_lookup(struct xfrm_dst **dst, struct flowi *fl,
 }
 EXPORT_SYMBOL(xfrm_dst_lookup);
 
-void xfrm_put_type(struct xfrm_type *type)
-{
-	module_put(type->owner);
-}
-
-int xfrm_register_mode(struct xfrm_mode *mode, int family)
-{
-	struct xfrm_policy_afinfo *afinfo;
-	struct xfrm_mode **modemap;
-	int err;
-
-	if (unlikely(mode->encap >= XFRM_MODE_MAX))
-		return -EINVAL;
-
-	afinfo = xfrm_policy_lock_afinfo(family);
-	if (unlikely(afinfo == NULL))
-		return -EAFNOSUPPORT;
-
-	err = -EEXIST;
-	modemap = afinfo->mode_map;
-	if (likely(modemap[mode->encap] == NULL)) {
-		modemap[mode->encap] = mode;
-		err = 0;
-	}
-
-	xfrm_policy_unlock_afinfo(afinfo);
-	return err;
-}
-EXPORT_SYMBOL(xfrm_register_mode);
-
-int xfrm_unregister_mode(struct xfrm_mode *mode, int family)
-{
-	struct xfrm_policy_afinfo *afinfo;
-	struct xfrm_mode **modemap;
-	int err;
-
-	if (unlikely(mode->encap >= XFRM_MODE_MAX))
-		return -EINVAL;
-
-	afinfo = xfrm_policy_lock_afinfo(family);
-	if (unlikely(afinfo == NULL))
-		return -EAFNOSUPPORT;
-
-	err = -ENOENT;
-	modemap = afinfo->mode_map;
-	if (likely(modemap[mode->encap] == mode)) {
-		modemap[mode->encap] = NULL;
-		err = 0;
-	}
-
-	xfrm_policy_unlock_afinfo(afinfo);
-	return err;
-}
-EXPORT_SYMBOL(xfrm_unregister_mode);
-
-struct xfrm_mode *xfrm_get_mode(unsigned int encap, int family)
-{
-	struct xfrm_policy_afinfo *afinfo;
-	struct xfrm_mode *mode;
-	int modload_attempted = 0;
-
-	if (unlikely(encap >= XFRM_MODE_MAX))
-		return NULL;
-
-retry:
-	afinfo = xfrm_policy_get_afinfo(family);
-	if (unlikely(afinfo == NULL))
-		return NULL;
-
-	mode = afinfo->mode_map[encap];
-	if (unlikely(mode && !try_module_get(mode->owner)))
-		mode = NULL;
-	if (!mode && !modload_attempted) {
-		xfrm_policy_put_afinfo(afinfo);
-		request_module("xfrm-mode-%d-%d", family, encap);
-		modload_attempted = 1;
-		goto retry;
-	}
-
-	xfrm_policy_put_afinfo(afinfo);
-	return mode;
-}
-
-void xfrm_put_mode(struct xfrm_mode *mode)
-{
-	module_put(mode->owner);
-}
-
 static inline unsigned long make_jiffies(long secs)
 {
 	if (secs >= (MAX_SCHEDULE_TIMEOUT-1)/HZ)
@@ -2213,23 +2057,6 @@ static void xfrm_policy_put_afinfo(struct xfrm_policy_afinfo *afinfo)
 	read_unlock(&xfrm_policy_afinfo_lock);
 }
 
-static struct xfrm_policy_afinfo *xfrm_policy_lock_afinfo(unsigned int family)
-{
-	struct xfrm_policy_afinfo *afinfo;
-	if (unlikely(family >= NPROTO))
-		return NULL;
-	write_lock_bh(&xfrm_policy_afinfo_lock);
-	afinfo = xfrm_policy_afinfo[family];
-	if (unlikely(!afinfo))
-		write_unlock_bh(&xfrm_policy_afinfo_lock);
-	return afinfo;
-}
-
-static void xfrm_policy_unlock_afinfo(struct xfrm_policy_afinfo *afinfo)
-{
-	write_unlock_bh(&xfrm_policy_afinfo_lock);
-}
-
 static int xfrm_dev_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
 	struct net_device *dev = ptr;