IB: kmemdup() cleanup

Replace open coded kmemdup() to save some screen space, and allow
inlining/not inlining to be triggered by gcc.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

4 files changed, 5 insertions, 10 deletions

diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 25b1018a476c..82bc83baceaf 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -240,11 +240,10 @@ static void * cm_copy_private_data(const void *private_data,
         if (!private_data || !private_data_len)
                 return NULL;
 
-        data = kmalloc(private_data_len, GFP_KERNEL);
+        data = kmemdup(private_data, private_data_len, GFP_KERNEL);
         if (!data)
                 return ERR_PTR(-ENOMEM);
 
-        memcpy(data, private_data, private_data_len);
         return data;
 }
 
diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c
index c3fb304a4e86..2bbcfa5c6e27 100644
--- a/drivers/infiniband/core/iwcm.c
+++ b/drivers/infiniband/core/iwcm.c
@@ -140,10 +140,9 @@ static int copy_private_data(struct iwcm_id_private *cm_id_priv,
 {
         void *p;
 
-        p = kmalloc(event->private_data_len, GFP_ATOMIC);
+        p = kmemdup(event->private_data, event->private_data_len, GFP_ATOMIC);
         if (!p)
                 return -ENOMEM;
-        memcpy(p, event->private_data, event->private_data_len);
         event->private_data = p;
         return 0;
 }
diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
index ad4f4d5c2924..b4894ba223b7 100644
--- a/drivers/infiniband/core/ucm.c
+++ b/drivers/infiniband/core/ucm.c
@@ -328,20 +328,18 @@ static int ib_ucm_event_process(struct ib_cm_event *evt,
         }
 
         if (uvt->data_len) {
-                uvt->data = kmalloc(uvt->data_len, GFP_KERNEL);
+                uvt->data = kmemdup(evt->private_data, uvt->data_len, GFP_KERNEL);
                 if (!uvt->data)
                         goto err1;
 
-                memcpy(uvt->data, evt->private_data, uvt->data_len);
                 uvt->resp.present |= IB_UCM_PRES_DATA;
         }
 
         if (uvt->info_len) {
-                uvt->info = kmalloc(uvt->info_len, GFP_KERNEL);
+                uvt->info = kmemdup(info, uvt->info_len, GFP_KERNEL);
                 if (!uvt->info)
                         goto err2;
 
-                memcpy(uvt->info, info, uvt->info_len);
                 uvt->resp.present |= IB_UCM_PRES_INFO;
         }
         return 0;
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index fc67f780581b..21422a3336ad 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1100,11 +1100,10 @@ static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
         struct mthca_fmr *fmr;
         int err;
 
-        fmr = kmalloc(sizeof *fmr, GFP_KERNEL);
+        fmr = kmemdup(fmr_attr, sizeof *fmr, GFP_KERNEL);
         if (!fmr)
                 return ERR_PTR(-ENOMEM);
 
-        memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr);
         err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num,
                              convert_access(mr_access_flags), fmr);