hlist: drop the node parameter from iterators

[mirror_ubuntu-artful-kernel.git] / net / xfrm / xfrm_policy.c

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 5b47180986f8124f96e657330139c43862f95300..167c67d46c6a56a87baed9d3f6be17d137ffbe1a 100644 (file)
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -379,27 +379,27 @@ static void xfrm_dst_hash_transfer(struct hlist_head *list,
                                   struct hlist_head *ndsttable,
                                   unsigned int nhashmask)
 {
-       struct hlist_node *entry, *tmp, *entry0 = NULL;
+       struct hlist_node *tmp, *entry0 = NULL;
        struct xfrm_policy *pol;
        unsigned int h0 = 0;
 
 redo:
-       hlist_for_each_entry_safe(pol, entry, tmp, list, bydst) {
+       hlist_for_each_entry_safe(pol, tmp, list, bydst) {
                unsigned int h;
 
                h = __addr_hash(&pol->selector.daddr, &pol->selector.saddr,
                                pol->family, nhashmask);
                if (!entry0) {
-                       hlist_del(entry);
+                       hlist_del(&pol->bydst);
                        hlist_add_head(&pol->bydst, ndsttable+h);
                        h0 = h;
                } else {
                        if (h != h0)
                                continue;
-                       hlist_del(entry);
+                       hlist_del(&pol->bydst);
                        hlist_add_after(entry0, &pol->bydst);
                }
-               entry0 = entry;
+               entry0 = &pol->bydst;
        }
        if (!hlist_empty(list)) {
                entry0 = NULL;
@@ -411,10 +411,10 @@ static void xfrm_idx_hash_transfer(struct hlist_head *list,
                                   struct hlist_head *nidxtable,
                                   unsigned int nhashmask)
 {
-       struct hlist_node *entry, *tmp;
+       struct hlist_node *tmp;
        struct xfrm_policy *pol;
 
-       hlist_for_each_entry_safe(pol, entry, tmp, list, byidx) {
+       hlist_for_each_entry_safe(pol, tmp, list, byidx) {
                unsigned int h;
 
                h = __idx_hash(pol->index, nhashmask);
@@ -544,7 +544,6 @@ static u32 xfrm_gen_index(struct net *net, int dir)
        static u32 idx_generator;
 
        for (;;) {
-               struct hlist_node *entry;
                struct hlist_head *list;
                struct xfrm_policy *p;
                u32 idx;
@@ -556,7 +555,7 @@ static u32 xfrm_gen_index(struct net *net, int dir)
                        idx = 8;
                list = net->xfrm.policy_byidx + idx_hash(net, idx);
                found = 0;
-               hlist_for_each_entry(p, entry, list, byidx) {
+               hlist_for_each_entry(p, list, byidx) {
                        if (p->index == idx) {
                                found = 1;
                                break;
@@ -628,13 +627,13 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
        struct xfrm_policy *pol;
        struct xfrm_policy *delpol;
        struct hlist_head *chain;
-       struct hlist_node *entry, *newpos;
+       struct hlist_node *newpos;
 
        write_lock_bh(&xfrm_policy_lock);
        chain = policy_hash_bysel(net, &policy->selector, policy->family, dir);
        delpol = NULL;
        newpos = NULL;
-       hlist_for_each_entry(pol, entry, chain, bydst) {
+       hlist_for_each_entry(pol, chain, bydst) {
                if (pol->type == policy->type &&
                    !selector_cmp(&pol->selector, &policy->selector) &&
                    xfrm_policy_mark_match(policy, pol) &&
@@ -691,13 +690,12 @@ struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net, u32 mark, u8 type,
 {
        struct xfrm_policy *pol, *ret;
        struct hlist_head *chain;
-       struct hlist_node *entry;
 
        *err = 0;
        write_lock_bh(&xfrm_policy_lock);
        chain = policy_hash_bysel(net, sel, sel->family, dir);
        ret = NULL;
-       hlist_for_each_entry(pol, entry, chain, bydst) {
+       hlist_for_each_entry(pol, chain, bydst) {
                if (pol->type == type &&
                    (mark & pol->mark.m) == pol->mark.v &&
                    !selector_cmp(sel, &pol->selector) &&
@@ -729,7 +727,6 @@ struct xfrm_policy *xfrm_policy_byid(struct net *net, u32 mark, u8 type,
 {
        struct xfrm_policy *pol, *ret;
        struct hlist_head *chain;
-       struct hlist_node *entry;
 
        *err = -ENOENT;
        if (xfrm_policy_id2dir(id) != dir)
@@ -739,7 +736,7 @@ struct xfrm_policy *xfrm_policy_byid(struct net *net, u32 mark, u8 type,
        write_lock_bh(&xfrm_policy_lock);
        chain = net->xfrm.policy_byidx + idx_hash(net, id);
        ret = NULL;
-       hlist_for_each_entry(pol, entry, chain, byidx) {
+       hlist_for_each_entry(pol, chain, byidx) {
                if (pol->type == type && pol->index == id &&
                    (mark & pol->mark.m) == pol->mark.v) {
                        xfrm_pol_hold(pol);
@@ -772,10 +769,9 @@ xfrm_policy_flush_secctx_check(struct net *net, u8 type, struct xfrm_audit *audi
 
        for (dir = 0; dir < XFRM_POLICY_MAX; dir++) {
                struct xfrm_policy *pol;
-               struct hlist_node *entry;
                int i;
 
-               hlist_for_each_entry(pol, entry,
+               hlist_for_each_entry(pol,
                                     &net->xfrm.policy_inexact[dir], bydst) {
                        if (pol->type != type)
                                continue;
@@ -789,7 +785,7 @@ xfrm_policy_flush_secctx_check(struct net *net, u8 type, struct xfrm_audit *audi
                        }
                }
                for (i = net->xfrm.policy_bydst[dir].hmask; i >= 0; i--) {
-                       hlist_for_each_entry(pol, entry,
+                       hlist_for_each_entry(pol,
                                             net->xfrm.policy_bydst[dir].table + i,
                                             bydst) {
                                if (pol->type != type)
@@ -828,11 +824,10 @@ int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info)
 
        for (dir = 0; dir < XFRM_POLICY_MAX; dir++) {
                struct xfrm_policy *pol;
-               struct hlist_node *entry;
                int i;
 
        again1:
-               hlist_for_each_entry(pol, entry,
+               hlist_for_each_entry(pol,
                                     &net->xfrm.policy_inexact[dir], bydst) {
                        if (pol->type != type)
                                continue;
@@ -852,7 +847,7 @@ int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info)
 
                for (i = net->xfrm.policy_bydst[dir].hmask; i >= 0; i--) {
        again2:
-                       hlist_for_each_entry(pol, entry,
+                       hlist_for_each_entry(pol,
                                             net->xfrm.policy_bydst[dir].table + i,
                                             bydst) {
                                if (pol->type != type)
@@ -980,7 +975,6 @@ static struct xfrm_policy *xfrm_policy_lookup_bytype(struct net *net, u8 type,
        int err;
        struct xfrm_policy *pol, *ret;
        const xfrm_address_t *daddr, *saddr;
-       struct hlist_node *entry;
        struct hlist_head *chain;
        u32 priority = ~0U;
 
@@ -992,7 +986,7 @@ static struct xfrm_policy *xfrm_policy_lookup_bytype(struct net *net, u8 type,
        read_lock_bh(&xfrm_policy_lock);
        chain = policy_hash_direct(net, daddr, saddr, family, dir);
        ret = NULL;
-       hlist_for_each_entry(pol, entry, chain, bydst) {
+       hlist_for_each_entry(pol, chain, bydst) {
                err = xfrm_policy_match(pol, fl, type, family, dir);
                if (err) {
                        if (err == -ESRCH)
@@ -1008,7 +1002,7 @@ static struct xfrm_policy *xfrm_policy_lookup_bytype(struct net *net, u8 type,
                }
        }
        chain = &net->xfrm.policy_inexact[dir];
-       hlist_for_each_entry(pol, entry, chain, bydst) {
+       hlist_for_each_entry(pol, chain, bydst) {
                err = xfrm_policy_match(pol, fl, type, family, dir);
                if (err) {
                        if (err == -ESRCH)
@@ -3041,13 +3035,12 @@ static struct xfrm_policy * xfrm_migrate_policy_find(const struct xfrm_selector
                                                     u8 dir, u8 type)
 {
        struct xfrm_policy *pol, *ret = NULL;
-       struct hlist_node *entry;
        struct hlist_head *chain;
        u32 priority = ~0U;
 
        read_lock_bh(&xfrm_policy_lock);
        chain = policy_hash_direct(&init_net, &sel->daddr, &sel->saddr, sel->family, dir);
-       hlist_for_each_entry(pol, entry, chain, bydst) {
+       hlist_for_each_entry(pol, chain, bydst) {
                if (xfrm_migrate_selector_match(sel, &pol->selector) &&
                    pol->type == type) {
                        ret = pol;
@@ -3056,7 +3049,7 @@ static struct xfrm_policy * xfrm_migrate_policy_find(const struct xfrm_selector
                }
        }
        chain = &init_net.xfrm.policy_inexact[dir];
-       hlist_for_each_entry(pol, entry, chain, bydst) {
+       hlist_for_each_entry(pol, chain, bydst) {
                if (xfrm_migrate_selector_match(sel, &pol->selector) &&
                    pol->type == type &&
                    pol->priority < priority) {