12 files changed, 46 insertions, 71 deletions

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 40e0df6c2a2f..a32f9432666c 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -554,7 +554,6 @@ static struct css_set *find_existing_css_set(
 {
         int i;
         struct cgroupfs_root *root = cgrp->root;
-        struct hlist_node *node;
         struct css_set *cg;
         unsigned long key;
 
@@ -577,7 +576,7 @@ static struct css_set *find_existing_css_set(
         }
 
         key = css_set_hash(template);
-        hash_for_each_possible(css_set_table, cg, node, hlist, key) {
+        hash_for_each_possible(css_set_table, cg, hlist, key) {
                 if (!compare_css_sets(cg, oldcg, cgrp, template))
                         continue;
 
@@ -1611,7 +1610,6 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type,
                 struct cgroupfs_root *existing_root;
                 const struct cred *cred;
                 int i;
-                struct hlist_node *node;
                 struct css_set *cg;
 
                 BUG_ON(sb->s_root != NULL);
@@ -1666,7 +1664,7 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type,
                 /* Link the top cgroup in this hierarchy into all
                  * the css_set objects */
                 write_lock(&css_set_lock);
-                hash_for_each(css_set_table, i, node, cg, hlist)
+                hash_for_each(css_set_table, i, cg, hlist)
                         link_css_set(&tmp_cg_links, cg, root_cgrp);
                 write_unlock(&css_set_lock);
 
@@ -4493,7 +4491,7 @@ int __init_or_module cgroup_load_subsys(struct cgroup_subsys *ss)
 {
         struct cgroup_subsys_state *css;
         int i, ret;
-        struct hlist_node *node, *tmp;
+        struct hlist_node *tmp;
         struct css_set *cg;
         unsigned long key;
 
@@ -4561,7 +4559,7 @@ int __init_or_module cgroup_load_subsys(struct cgroup_subsys *ss)
          * this is all done under the css_set_lock.
          */
         write_lock(&css_set_lock);
-        hash_for_each_safe(css_set_table, i, node, tmp, cg, hlist) {
+        hash_for_each_safe(css_set_table, i, tmp, cg, hlist) {
                 /* skip entries that we already rehashed */
                 if (cg->subsys[ss->subsys_id])
                         continue;
@@ -4571,7 +4569,7 @@ int __init_or_module cgroup_load_subsys(struct cgroup_subsys *ss)
                 cg->subsys[ss->subsys_id] = css;
                 /* recompute hash and restore entry */
                 key = css_set_hash(cg->subsys);
-                hash_add(css_set_table, node, key);
+                hash_add(css_set_table, &cg->hlist, key);
         }
         write_unlock(&css_set_lock);
 
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 5a92cf6beff0..b0cd86501c30 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5126,7 +5126,6 @@ static void do_perf_sw_event(enum perf_type_id type, u32 event_id,
 {
         struct swevent_htable *swhash = &__get_cpu_var(swevent_htable);
         struct perf_event *event;
-        struct hlist_node *node;
         struct hlist_head *head;
 
         rcu_read_lock();
@@ -5134,7 +5133,7 @@ static void do_perf_sw_event(enum perf_type_id type, u32 event_id,
         if (!head)
                 goto end;
 
-        hlist_for_each_entry_rcu(event, node, head, hlist_entry) {
+        hlist_for_each_entry_rcu(event, head, hlist_entry) {
                 if (perf_swevent_match(event, type, event_id, data, regs))
                         perf_swevent_event(event, nr, data, regs);
         }
@@ -5419,7 +5418,6 @@ void perf_tp_event(u64 addr, u64 count, void *record, int entry_size,
 {
         struct perf_sample_data data;
         struct perf_event *event;
-        struct hlist_node *node;
 
         struct perf_raw_record raw = {
                 .size = entry_size,
@@ -5429,7 +5427,7 @@ void perf_tp_event(u64 addr, u64 count, void *record, int entry_size,
         perf_sample_data_init(&data, addr, 0);
         data.raw = &raw;
 
-        hlist_for_each_entry_rcu(event, node, head, hlist_entry) {
+        hlist_for_each_entry_rcu(event, head, hlist_entry) {
                 if (perf_tp_event_match(event, &data, regs))
                         perf_swevent_event(event, count, &data, regs);
         }
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 550294d58a02..e35be53f6613 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -334,11 +334,10 @@ static inline void reset_kprobe_instance(void)
 struct kprobe __kprobes *get_kprobe(void *addr)
 {
         struct hlist_head *head;
-        struct hlist_node *node;
         struct kprobe *p;
 
         head = &kprobe_table[hash_ptr(addr, KPROBE_HASH_BITS)];
-        hlist_for_each_entry_rcu(p, node, head, hlist) {
+        hlist_for_each_entry_rcu(p, head, hlist) {
                 if (p->addr == addr)
                         return p;
         }
@@ -799,7 +798,6 @@ out:
 static void __kprobes optimize_all_kprobes(void)
 {
         struct hlist_head *head;
-        struct hlist_node *node;
         struct kprobe *p;
         unsigned int i;
 
@@ -810,7 +808,7 @@ static void __kprobes optimize_all_kprobes(void)
         kprobes_allow_optimization = true;
         for (i = 0; i < KPROBE_TABLE_SIZE; i++) {
                 head = &kprobe_table[i];
-                hlist_for_each_entry_rcu(p, node, head, hlist)
+                hlist_for_each_entry_rcu(p, head, hlist)
                         if (!kprobe_disabled(p))
                                 optimize_kprobe(p);
         }
@@ -821,7 +819,6 @@ static void __kprobes optimize_all_kprobes(void)
 static void __kprobes unoptimize_all_kprobes(void)
 {
         struct hlist_head *head;
-        struct hlist_node *node;
         struct kprobe *p;
         unsigned int i;
 
@@ -832,7 +829,7 @@ static void __kprobes unoptimize_all_kprobes(void)
         kprobes_allow_optimization = false;
         for (i = 0; i < KPROBE_TABLE_SIZE; i++) {
                 head = &kprobe_table[i];
-                hlist_for_each_entry_rcu(p, node, head, hlist) {
+                hlist_for_each_entry_rcu(p, head, hlist) {
                         if (!kprobe_disabled(p))
                                 unoptimize_kprobe(p, false);
                 }
@@ -1148,7 +1145,7 @@ void __kprobes kprobe_flush_task(struct task_struct *tk)
 {
         struct kretprobe_instance *ri;
         struct hlist_head *head, empty_rp;
-        struct hlist_node *node, *tmp;
+        struct hlist_node *tmp;
         unsigned long hash, flags = 0;
 
         if (unlikely(!kprobes_initialized))
@@ -1159,12 +1156,12 @@ void __kprobes kprobe_flush_task(struct task_struct *tk)
         hash = hash_ptr(tk, KPROBE_HASH_BITS);
         head = &kretprobe_inst_table[hash];
         kretprobe_table_lock(hash, &flags);
-        hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
+        hlist_for_each_entry_safe(ri, tmp, head, hlist) {
                 if (ri->task == tk)
                         recycle_rp_inst(ri, &empty_rp);
         }
         kretprobe_table_unlock(hash, &flags);
-        hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
+        hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
                 hlist_del(&ri->hlist);
                 kfree(ri);
         }
@@ -1173,9 +1170,9 @@ void __kprobes kprobe_flush_task(struct task_struct *tk)
 static inline void free_rp_inst(struct kretprobe *rp)
 {
         struct kretprobe_instance *ri;
-        struct hlist_node *pos, *next;
+        struct hlist_node *next;
 
-        hlist_for_each_entry_safe(ri, pos, next, &rp->free_instances, hlist) {
+        hlist_for_each_entry_safe(ri, next, &rp->free_instances, hlist) {
                 hlist_del(&ri->hlist);
                 kfree(ri);
         }
@@ -1185,14 +1182,14 @@ static void __kprobes cleanup_rp_inst(struct kretprobe *rp)
 {
         unsigned long flags, hash;
         struct kretprobe_instance *ri;
-        struct hlist_node *pos, *next;
+        struct hlist_node *next;
         struct hlist_head *head;
 
         /* No race here */
         for (hash = 0; hash < KPROBE_TABLE_SIZE; hash++) {
                 kretprobe_table_lock(hash, &flags);
                 head = &kretprobe_inst_table[hash];
-                hlist_for_each_entry_safe(ri, pos, next, head, hlist) {
+                hlist_for_each_entry_safe(ri, next, head, hlist) {
                         if (ri->rp == rp)
                                 ri->rp = NULL;
                 }
@@ -2028,7 +2025,6 @@ static int __kprobes kprobes_module_callback(struct notifier_block *nb,
 {
         struct module *mod = data;
         struct hlist_head *head;
-        struct hlist_node *node;
         struct kprobe *p;
         unsigned int i;
         int checkcore = (val == MODULE_STATE_GOING);
@@ -2045,7 +2041,7 @@ static int __kprobes kprobes_module_callback(struct notifier_block *nb,
         mutex_lock(&kprobe_mutex);
         for (i = 0; i < KPROBE_TABLE_SIZE; i++) {
                 head = &kprobe_table[i];
-                hlist_for_each_entry_rcu(p, node, head, hlist)
+                hlist_for_each_entry_rcu(p, head, hlist)
                         if (within_module_init((unsigned long)p->addr, mod) ||
                             (checkcore &&
                              within_module_core((unsigned long)p->addr, mod))) {
@@ -2192,7 +2188,6 @@ static void __kprobes kprobe_seq_stop(struct seq_file *f, void *v)
 static int __kprobes show_kprobe_addr(struct seq_file *pi, void *v)
 {
         struct hlist_head *head;
-        struct hlist_node *node;
         struct kprobe *p, *kp;
         const char *sym = NULL;
         unsigned int i = *(loff_t *) v;
@@ -2201,7 +2196,7 @@ static int __kprobes show_kprobe_addr(struct seq_file *pi, void *v)
 
         head = &kprobe_table[i];
         preempt_disable();
-        hlist_for_each_entry_rcu(p, node, head, hlist) {
+        hlist_for_each_entry_rcu(p, head, hlist) {
                 sym = kallsyms_lookup((unsigned long)p->addr, NULL,
                                         &offset, &modname, namebuf);
                 if (kprobe_aggrprobe(p)) {
@@ -2236,7 +2231,6 @@ static const struct file_operations debugfs_kprobes_operations = {
 static void __kprobes arm_all_kprobes(void)
 {
         struct hlist_head *head;
-        struct hlist_node *node;
         struct kprobe *p;
         unsigned int i;
 
@@ -2249,7 +2243,7 @@ static void __kprobes arm_all_kprobes(void)
         /* Arming kprobes doesn't optimize kprobe itself */
         for (i = 0; i < KPROBE_TABLE_SIZE; i++) {
                 head = &kprobe_table[i];
-                hlist_for_each_entry_rcu(p, node, head, hlist)
+                hlist_for_each_entry_rcu(p, head, hlist)
                         if (!kprobe_disabled(p))
                                 arm_kprobe(p);
         }
@@ -2265,7 +2259,6 @@ already_enabled:
 static void __kprobes disarm_all_kprobes(void)
 {
         struct hlist_head *head;
-        struct hlist_node *node;
         struct kprobe *p;
         unsigned int i;
 
@@ -2282,7 +2275,7 @@ static void __kprobes disarm_all_kprobes(void)
 
         for (i = 0; i < KPROBE_TABLE_SIZE; i++) {
                 head = &kprobe_table[i];
-                hlist_for_each_entry_rcu(p, node, head, hlist) {
+                hlist_for_each_entry_rcu(p, head, hlist) {
                         if (!arch_trampoline_kprobe(p) && !kprobe_disabled(p))
                                 disarm_kprobe(p, false);
                 }
diff --git a/kernel/pid.c b/kernel/pid.c
index f2c6a6825098..047dc6264638 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -350,10 +350,9 @@ void disable_pid_allocation(struct pid_namespace *ns)
 
 struct pid *find_pid_ns(int nr, struct pid_namespace *ns)
 {
-        struct hlist_node *elem;
         struct upid *pnr;
 
-        hlist_for_each_entry_rcu(pnr, elem,
+        hlist_for_each_entry_rcu(pnr,
                         &pid_hash[pid_hashfn(nr, ns)], pid_chain)
                 if (pnr->nr == nr && pnr->ns == ns)
                         return container_of(pnr, struct pid,
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 2b5243176aba..12af4270c9c1 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1752,9 +1752,8 @@ EXPORT_SYMBOL_GPL(preempt_notifier_unregister);
 static void fire_sched_in_preempt_notifiers(struct task_struct *curr)
 {
         struct preempt_notifier *notifier;
-        struct hlist_node *node;
 
-        hlist_for_each_entry(notifier, node, &curr->preempt_notifiers, link)
+        hlist_for_each_entry(notifier, &curr->preempt_notifiers, link)
                 notifier->ops->sched_in(notifier, raw_smp_processor_id());
 }
 
@@ -1763,9 +1762,8 @@ fire_sched_out_preempt_notifiers(struct task_struct *curr,
                                  struct task_struct *next)
 {
         struct preempt_notifier *notifier;
-        struct hlist_node *node;
 
-        hlist_for_each_entry(notifier, node, &curr->preempt_notifiers, link)
+        hlist_for_each_entry(notifier, &curr->preempt_notifiers, link)
                 notifier->ops->sched_out(notifier, next);
 }
 
diff --git a/kernel/smpboot.c b/kernel/smpboot.c
index d4abac261779..b9bde5727829 100644
--- a/kernel/smpboot.c
+++ b/kernel/smpboot.c
@@ -131,7 +131,7 @@ static int smpboot_thread_fn(void *data)
                         continue;
                 }
 
-                BUG_ON(td->cpu != smp_processor_id());
+                //BUG_ON(td->cpu != smp_processor_id());
 
                 /* Check for state change setup */
                 switch (td->status) {
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 98ca94a41819..ab25b88aae56 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -762,7 +762,6 @@ ftrace_find_profiled_func(struct ftrace_profile_stat *stat, unsigned long ip)
 {
         struct ftrace_profile *rec;
         struct hlist_head *hhd;
-        struct hlist_node *n;
         unsigned long key;
 
         key = hash_long(ip, ftrace_profile_bits);
@@ -771,7 +770,7 @@ ftrace_find_profiled_func(struct ftrace_profile_stat *stat, unsigned long ip)
         if (hlist_empty(hhd))
                 return NULL;
 
-        hlist_for_each_entry_rcu(rec, n, hhd, node) {
+        hlist_for_each_entry_rcu(rec, hhd, node) {
                 if (rec->ip == ip)
                         return rec;
         }
@@ -1133,7 +1132,6 @@ ftrace_lookup_ip(struct ftrace_hash *hash, unsigned long ip)
         unsigned long key;
         struct ftrace_func_entry *entry;
         struct hlist_head *hhd;
-        struct hlist_node *n;
 
         if (ftrace_hash_empty(hash))
                 return NULL;
@@ -1145,7 +1143,7 @@ ftrace_lookup_ip(struct ftrace_hash *hash, unsigned long ip)
 
         hhd = &hash->buckets[key];
 
-        hlist_for_each_entry_rcu(entry, n, hhd, hlist) {
+        hlist_for_each_entry_rcu(entry, hhd, hlist) {
                 if (entry->ip == ip)
                         return entry;
         }
@@ -1202,7 +1200,7 @@ remove_hash_entry(struct ftrace_hash *hash,
 static void ftrace_hash_clear(struct ftrace_hash *hash)
 {
         struct hlist_head *hhd;
-        struct hlist_node *tp, *tn;
+        struct hlist_node *tn;
         struct ftrace_func_entry *entry;
         int size = 1 << hash->size_bits;
         int i;
@@ -1212,7 +1210,7 @@ static void ftrace_hash_clear(struct ftrace_hash *hash)
 
         for (i = 0; i < size; i++) {
                 hhd = &hash->buckets[i];
-                hlist_for_each_entry_safe(entry, tp, tn, hhd, hlist)
+                hlist_for_each_entry_safe(entry, tn, hhd, hlist)
                         free_hash_entry(hash, entry);
         }
         FTRACE_WARN_ON(hash->count);
@@ -1275,7 +1273,6 @@ alloc_and_copy_ftrace_hash(int size_bits, struct ftrace_hash *hash)
 {
         struct ftrace_func_entry *entry;
         struct ftrace_hash *new_hash;
-        struct hlist_node *tp;
         int size;
         int ret;
         int i;
@@ -1290,7 +1287,7 @@ alloc_and_copy_ftrace_hash(int size_bits, struct ftrace_hash *hash)
 
         size = 1 << hash->size_bits;
         for (i = 0; i < size; i++) {
-                hlist_for_each_entry(entry, tp, &hash->buckets[i], hlist) {
+                hlist_for_each_entry(entry, &hash->buckets[i], hlist) {
                         ret = add_hash_entry(new_hash, entry->ip);
                         if (ret < 0)
                                 goto free_hash;
@@ -1316,7 +1313,7 @@ ftrace_hash_move(struct ftrace_ops *ops, int enable,
                  struct ftrace_hash **dst, struct ftrace_hash *src)
 {
         struct ftrace_func_entry *entry;
-        struct hlist_node *tp, *tn;
+        struct hlist_node *tn;
         struct hlist_head *hhd;
         struct ftrace_hash *old_hash;
         struct ftrace_hash *new_hash;
@@ -1362,7 +1359,7 @@ ftrace_hash_move(struct ftrace_ops *ops, int enable,
         size = 1 << src->size_bits;
         for (i = 0; i < size; i++) {
                 hhd = &src->buckets[i];
-                hlist_for_each_entry_safe(entry, tp, tn, hhd, hlist) {
+                hlist_for_each_entry_safe(entry, tn, hhd, hlist) {
                         if (bits > 0)
                                 key = hash_long(entry->ip, bits);
                         else
@@ -2901,7 +2898,6 @@ static void function_trace_probe_call(unsigned long ip, unsigned long parent_ip,
 {
         struct ftrace_func_probe *entry;
         struct hlist_head *hhd;
-        struct hlist_node *n;
         unsigned long key;
 
         key = hash_long(ip, FTRACE_HASH_BITS);
@@ -2917,7 +2913,7 @@ static void function_trace_probe_call(unsigned long ip, unsigned long parent_ip,
          * on the hash. rcu_read_lock is too dangerous here.
          */
         preempt_disable_notrace();
-        hlist_for_each_entry_rcu(entry, n, hhd, node) {
+        hlist_for_each_entry_rcu(entry, hhd, node) {
                 if (entry->ip == ip)
                         entry->ops->func(ip, parent_ip, &entry->data);
         }
@@ -3068,7 +3064,7 @@ __unregister_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops,
                                   void *data, int flags)
 {
         struct ftrace_func_probe *entry;
-        struct hlist_node *n, *tmp;
+        struct hlist_node *tmp;
         char str[KSYM_SYMBOL_LEN];
         int type = MATCH_FULL;
         int i, len = 0;
@@ -3091,7 +3087,7 @@ __unregister_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops,
         for (i = 0; i < FTRACE_FUNC_HASHSIZE; i++) {
                 struct hlist_head *hhd = &ftrace_func_hash[i];
 
-                hlist_for_each_entry_safe(entry, n, tmp, hhd, node) {
+                hlist_for_each_entry_safe(entry, tmp, hhd, node) {
 
                         /* break up if statements for readability */
                         if ((flags & PROBE_TEST_FUNC) && entry->ops != ops)
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 194d79602dc7..697e88d13907 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -739,12 +739,11 @@ static int task_state_char(unsigned long state)
 struct trace_event *ftrace_find_event(int type)
 {
         struct trace_event *event;
-        struct hlist_node *n;
         unsigned key;
 
         key = type & (EVENT_HASHSIZE - 1);
 
-        hlist_for_each_entry(event, n, &event_hash[key], node) {
+        hlist_for_each_entry(event, &event_hash[key], node) {
                 if (event->type == type)
                         return event;
         }
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index d96ba22dabfa..0c05a4592047 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -192,12 +192,11 @@ tracepoint_entry_remove_probe(struct tracepoint_entry *entry,
 static struct tracepoint_entry *get_tracepoint(const char *name)
 {
         struct hlist_head *head;
-        struct hlist_node *node;
         struct tracepoint_entry *e;
         u32 hash = jhash(name, strlen(name), 0);
 
         head = &tracepoint_table[hash & (TRACEPOINT_TABLE_SIZE - 1)];
-        hlist_for_each_entry(e, node, head, hlist) {
+        hlist_for_each_entry(e, head, hlist) {
                 if (!strcmp(name, e->name))
                         return e;
         }
@@ -211,13 +210,12 @@ static struct tracepoint_entry *get_tracepoint(const char *name)
 static struct tracepoint_entry *add_tracepoint(const char *name)
 {
         struct hlist_head *head;
-        struct hlist_node *node;
         struct tracepoint_entry *e;
         size_t name_len = strlen(name) + 1;
         u32 hash = jhash(name, name_len-1, 0);
 
         head = &tracepoint_table[hash & (TRACEPOINT_TABLE_SIZE - 1)];
-        hlist_for_each_entry(e, node, head, hlist) {
+        hlist_for_each_entry(e, head, hlist) {
                 if (!strcmp(name, e->name)) {
                         printk(KERN_NOTICE
                                 "tracepoint %s busy\n", name);
diff --git a/kernel/user-return-notifier.c b/kernel/user-return-notifier.c
index 1744bb80f1fb..394f70b17162 100644
--- a/kernel/user-return-notifier.c
+++ b/kernel/user-return-notifier.c
@@ -34,11 +34,11 @@ EXPORT_SYMBOL_GPL(user_return_notifier_unregister);
 void fire_user_return_notifiers(void)
 {
         struct user_return_notifier *urn;
-        struct hlist_node *tmp1, *tmp2;
+        struct hlist_node *tmp2;
         struct hlist_head *head;
 
         head = &get_cpu_var(return_notifier_list);
-        hlist_for_each_entry_safe(urn, tmp1, tmp2, head, link)
+        hlist_for_each_entry_safe(urn, tmp2, head, link)
                 urn->on_user_return(urn);
         put_cpu_var(return_notifier_list);
 }
diff --git a/kernel/user.c b/kernel/user.c
index 57ebfd42023c..e81978e8c03b 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -105,9 +105,8 @@ static void uid_hash_remove(struct user_struct *up)
 static struct user_struct *uid_hash_find(kuid_t uid, struct hlist_head *hashent)
 {
         struct user_struct *user;
-        struct hlist_node *h;
 
-        hlist_for_each_entry(user, h, hashent, uidhash_node) {
+        hlist_for_each_entry(user, hashent, uidhash_node) {
                 if (uid_eq(user->uid, uid)) {
                         atomic_inc(&user->__count);
                         return user;
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index f4feacad3812..81f2457811eb 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -251,8 +251,8 @@ EXPORT_SYMBOL_GPL(system_freezable_wq);
         for ((pool) = &std_worker_pools(cpu)[0];                        \
              (pool) < &std_worker_pools(cpu)[NR_STD_WORKER_POOLS]; (pool)++)
 
-#define for_each_busy_worker(worker, i, pos, pool)                      \
-        hash_for_each(pool->busy_hash, i, pos, worker, hentry)
+#define for_each_busy_worker(worker, i, pool)                           \
+        hash_for_each(pool->busy_hash, i, worker, hentry)
 
 static inline int __next_wq_cpu(int cpu, const struct cpumask *mask,
                                 unsigned int sw)
@@ -909,9 +909,8 @@ static struct worker *find_worker_executing_work(struct worker_pool *pool,
                                                  struct work_struct *work)
 {
         struct worker *worker;
-        struct hlist_node *tmp;
 
-        hash_for_each_possible(pool->busy_hash, worker, tmp, hentry,
+        hash_for_each_possible(pool->busy_hash, worker, hentry,
                                (unsigned long)work)
                 if (worker->current_work == work &&
                     worker->current_func == work->func)
@@ -1626,7 +1625,6 @@ static void busy_worker_rebind_fn(struct work_struct *work)
 static void rebind_workers(struct worker_pool *pool)
 {
         struct worker *worker, *n;
-        struct hlist_node *pos;
         int i;
 
         lockdep_assert_held(&pool->assoc_mutex);
@@ -1648,7 +1646,7 @@ static void rebind_workers(struct worker_pool *pool)
         }
 
         /* rebind busy workers */
-        for_each_busy_worker(worker, i, pos, pool) {
+        for_each_busy_worker(worker, i, pool) {
                 struct work_struct *rebind_work = &worker->rebind_work;
                 struct workqueue_struct *wq;
 
@@ -3423,7 +3421,6 @@ static void wq_unbind_fn(struct work_struct *work)
         int cpu = smp_processor_id();
         struct worker_pool *pool;
         struct worker *worker;
-        struct hlist_node *pos;
         int i;
 
         for_each_std_worker_pool(pool, cpu) {
@@ -3442,7 +3439,7 @@ static void wq_unbind_fn(struct work_struct *work)
                 list_for_each_entry(worker, &pool->idle_list, entry)
                         worker->flags |= WORKER_UNBOUND;
 
-                for_each_busy_worker(worker, i, pos, pool)
+                for_each_busy_worker(worker, i, pool)
                         worker->flags |= WORKER_UNBOUND;
 
                 pool->flags |= POOL_DISASSOCIATED;