IB/hfi1: Using kfree_rcu() to simplify the code

The callback function of call_rcu() just calls a kfree(), so we
can use kfree_rcu() instead of call_rcu() + callback function.

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Tested-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Tested-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/hw/hfi1/hfi.h b/drivers/infiniband/hw/hfi1/hfi.h
index 1000e0f..f41414e 100644 (file)
--- a/drivers/infiniband/hw/hfi1/hfi.h
+++ b/drivers/infiniband/hw/hfi1/hfi.h
@@ -1656,7 +1656,6 @@ struct cc_state *get_cc_state_protected(struct hfi1_pportdata *ppd)
 struct hfi1_devdata *hfi1_init_dd(struct pci_dev *,
                                  const struct pci_device_id *);
 void hfi1_free_devdata(struct hfi1_devdata *);
-void cc_state_reclaim(struct rcu_head *rcu);
 struct hfi1_devdata *hfi1_alloc_devdata(struct pci_dev *pdev, size_t extra);
 
 /* LED beaconing functions */

diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c
index a358d23..b793545 100644 (file)
--- a/drivers/infiniband/hw/hfi1/init.c
+++ b/drivers/infiniband/hw/hfi1/init.c
@@ -1333,7 +1333,7 @@ static void cleanup_device_data(struct hfi1_devdata *dd)
                spin_unlock(&ppd->cc_state_lock);
 
                if (cc_state)
-                       call_rcu(&cc_state->rcu, cc_state_reclaim);
+                       kfree_rcu(cc_state, rcu);
        }
 
        free_credit_return(dd);

diff --git a/drivers/infiniband/hw/hfi1/mad.c b/drivers/infiniband/hw/hfi1/mad.c
index 1263abe..95c43e1 100644 (file)
--- a/drivers/infiniband/hw/hfi1/mad.c
+++ b/drivers/infiniband/hw/hfi1/mad.c
@@ -3398,7 +3398,7 @@ static void apply_cc_state(struct hfi1_pportdata *ppd)
 
        spin_unlock(&ppd->cc_state_lock);
 
-       call_rcu(&old_cc_state->rcu, cc_state_reclaim);
+       kfree_rcu(old_cc_state, rcu);
 }
 
 static int __subn_set_opa_cong_setting(struct opa_smp *smp, u32 am, u8 *data,
@@ -3553,13 +3553,6 @@ static int __subn_get_opa_cc_table(struct opa_smp *smp, u32 am, u8 *data,
        return reply((struct ib_mad_hdr *)smp);
 }
 
-void cc_state_reclaim(struct rcu_head *rcu)
-{
-       struct cc_state *cc_state = container_of(rcu, struct cc_state, rcu);
-
-       kfree(cc_state);
-}
-
 static int __subn_set_opa_cc_table(struct opa_smp *smp, u32 am, u8 *data,
                                   struct ib_device *ibdev, u8 port,
                                   u32 *resp_len)