Commit de6eb66b authored by Roland Dreier's avatar Roland Dreier

[IB] kzalloc() conversions

Replace kmalloc()+memset(,0,) with kzalloc(), for a net savings of 35
source lines and about 500 bytes of text.
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 7b28b0d0
......@@ -155,13 +155,12 @@ int ib_agent_port_open(struct ib_device *device, int port_num)
int ret;
/* Create new device info */
port_priv = kmalloc(sizeof *port_priv, GFP_KERNEL);
port_priv = kzalloc(sizeof *port_priv, GFP_KERNEL);
if (!port_priv) {
printk(KERN_ERR SPFX "No memory for ib_agent_port_private\n");
ret = -ENOMEM;
goto error1;
}
memset(port_priv, 0, sizeof *port_priv);
/* Obtain send only MAD agent for SMI QP */
port_priv->agent[0] = ib_register_mad_agent(device, port_num,
......
......@@ -544,11 +544,10 @@ struct ib_cm_id *ib_create_cm_id(struct ib_device *device,
struct cm_id_private *cm_id_priv;
int ret;
cm_id_priv = kmalloc(sizeof *cm_id_priv, GFP_KERNEL);
cm_id_priv = kzalloc(sizeof *cm_id_priv, GFP_KERNEL);
if (!cm_id_priv)
return ERR_PTR(-ENOMEM);
memset(cm_id_priv, 0, sizeof *cm_id_priv);
cm_id_priv->id.state = IB_CM_IDLE;
cm_id_priv->id.device = device;
cm_id_priv->id.cm_handler = cm_handler;
......@@ -621,10 +620,9 @@ static struct cm_timewait_info * cm_create_timewait_info(__be32 local_id)
{
struct cm_timewait_info *timewait_info;
timewait_info = kmalloc(sizeof *timewait_info, GFP_KERNEL);
timewait_info = kzalloc(sizeof *timewait_info, GFP_KERNEL);
if (!timewait_info)
return ERR_PTR(-ENOMEM);
memset(timewait_info, 0, sizeof *timewait_info);
timewait_info->work.local_id = local_id;
INIT_WORK(&timewait_info->work.work, cm_work_handler,
......
......@@ -161,17 +161,9 @@ static int alloc_name(char *name)
*/
struct ib_device *ib_alloc_device(size_t size)
{
void *dev;
BUG_ON(size < sizeof (struct ib_device));
dev = kmalloc(size, GFP_KERNEL);
if (!dev)
return NULL;
memset(dev, 0, size);
return dev;
return kzalloc(size, GFP_KERNEL);
}
EXPORT_SYMBOL(ib_alloc_device);
......
......@@ -255,12 +255,11 @@ struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
}
/* Allocate structures */
mad_agent_priv = kmalloc(sizeof *mad_agent_priv, GFP_KERNEL);
mad_agent_priv = kzalloc(sizeof *mad_agent_priv, GFP_KERNEL);
if (!mad_agent_priv) {
ret = ERR_PTR(-ENOMEM);
goto error1;
}
memset(mad_agent_priv, 0, sizeof *mad_agent_priv);
mad_agent_priv->agent.mr = ib_get_dma_mr(port_priv->qp_info[qpn].qp->pd,
IB_ACCESS_LOCAL_WRITE);
......@@ -448,14 +447,13 @@ struct ib_mad_agent *ib_register_mad_snoop(struct ib_device *device,
goto error1;
}
/* Allocate structures */
mad_snoop_priv = kmalloc(sizeof *mad_snoop_priv, GFP_KERNEL);
mad_snoop_priv = kzalloc(sizeof *mad_snoop_priv, GFP_KERNEL);
if (!mad_snoop_priv) {
ret = ERR_PTR(-ENOMEM);
goto error1;
}
/* Now, fill in the various structures */
memset(mad_snoop_priv, 0, sizeof *mad_snoop_priv);
mad_snoop_priv->qp_info = &port_priv->qp_info[qpn];
mad_snoop_priv->agent.device = device;
mad_snoop_priv->agent.recv_handler = recv_handler;
......@@ -794,10 +792,9 @@ struct ib_mad_send_buf * ib_create_send_mad(struct ib_mad_agent *mad_agent,
(!rmpp_active && buf_size > sizeof(struct ib_mad)))
return ERR_PTR(-EINVAL);
buf = kmalloc(sizeof *mad_send_wr + buf_size, gfp_mask);
buf = kzalloc(sizeof *mad_send_wr + buf_size, gfp_mask);
if (!buf)
return ERR_PTR(-ENOMEM);
memset(buf, 0, sizeof *mad_send_wr + buf_size);
mad_send_wr = buf + buf_size;
mad_send_wr->send_buf.mad = buf;
......@@ -1039,14 +1036,12 @@ static int method_in_use(struct ib_mad_mgmt_method_table **method,
static int allocate_method_table(struct ib_mad_mgmt_method_table **method)
{
/* Allocate management method table */
*method = kmalloc(sizeof **method, GFP_ATOMIC);
*method = kzalloc(sizeof **method, GFP_ATOMIC);
if (!*method) {
printk(KERN_ERR PFX "No memory for "
"ib_mad_mgmt_method_table\n");
return -ENOMEM;
}
/* Clear management method table */
memset(*method, 0, sizeof **method);
return 0;
}
......@@ -1137,15 +1132,14 @@ static int add_nonoui_reg_req(struct ib_mad_reg_req *mad_reg_req,
class = &port_priv->version[mad_reg_req->mgmt_class_version].class;
if (!*class) {
/* Allocate management class table for "new" class version */
*class = kmalloc(sizeof **class, GFP_ATOMIC);
*class = kzalloc(sizeof **class, GFP_ATOMIC);
if (!*class) {
printk(KERN_ERR PFX "No memory for "
"ib_mad_mgmt_class_table\n");
ret = -ENOMEM;
goto error1;
}
/* Clear management class table */
memset(*class, 0, sizeof(**class));
/* Allocate method table for this management class */
method = &(*class)->method_table[mgmt_class];
if ((ret = allocate_method_table(method)))
......@@ -1209,25 +1203,24 @@ static int add_oui_reg_req(struct ib_mad_reg_req *mad_reg_req,
mad_reg_req->mgmt_class_version].vendor;
if (!*vendor_table) {
/* Allocate mgmt vendor class table for "new" class version */
vendor = kmalloc(sizeof *vendor, GFP_ATOMIC);
vendor = kzalloc(sizeof *vendor, GFP_ATOMIC);
if (!vendor) {
printk(KERN_ERR PFX "No memory for "
"ib_mad_mgmt_vendor_class_table\n");
goto error1;
}
/* Clear management vendor class table */
memset(vendor, 0, sizeof(*vendor));
*vendor_table = vendor;
}
if (!(*vendor_table)->vendor_class[vclass]) {
/* Allocate table for this management vendor class */
vendor_class = kmalloc(sizeof *vendor_class, GFP_ATOMIC);
vendor_class = kzalloc(sizeof *vendor_class, GFP_ATOMIC);
if (!vendor_class) {
printk(KERN_ERR PFX "No memory for "
"ib_mad_mgmt_vendor_class\n");
goto error2;
}
memset(vendor_class, 0, sizeof(*vendor_class));
(*vendor_table)->vendor_class[vclass] = vendor_class;
}
for (i = 0; i < MAX_MGMT_OUI; i++) {
......@@ -2524,12 +2517,12 @@ static int ib_mad_port_open(struct ib_device *device,
char name[sizeof "ib_mad123"];
/* Create new device info */
port_priv = kmalloc(sizeof *port_priv, GFP_KERNEL);
port_priv = kzalloc(sizeof *port_priv, GFP_KERNEL);
if (!port_priv) {
printk(KERN_ERR PFX "No memory for ib_mad_port_private\n");
return -ENOMEM;
}
memset(port_priv, 0, sizeof *port_priv);
port_priv->device = device;
port_priv->port_num = port_num;
spin_lock_init(&port_priv->reg_lock);
......
......@@ -307,14 +307,13 @@ static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr,
if (!p->ibdev->process_mad)
return sprintf(buf, "N/A (no PMA)\n");
in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
if (!in_mad || !out_mad) {
ret = -ENOMEM;
goto out;
}
memset(in_mad, 0, sizeof *in_mad);
in_mad->mad_hdr.base_version = 1;
in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT;
in_mad->mad_hdr.class_version = 1;
......@@ -508,10 +507,9 @@ static int add_port(struct ib_device *device, int port_num)
if (ret)
return ret;
p = kmalloc(sizeof *p, GFP_KERNEL);
p = kzalloc(sizeof *p, GFP_KERNEL);
if (!p)
return -ENOMEM;
memset(p, 0, sizeof *p);
p->ibdev = device;
p->port_num = port_num;
......
......@@ -172,11 +172,10 @@ static struct ib_ucm_context *ib_ucm_ctx_alloc(struct ib_ucm_file *file)
struct ib_ucm_context *ctx;
int result;
ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
if (!ctx)
return NULL;
memset(ctx, 0, sizeof *ctx);
atomic_set(&ctx->ref, 1);
init_waitqueue_head(&ctx->wait);
ctx->file = file;
......@@ -386,11 +385,10 @@ static int ib_ucm_event_handler(struct ib_cm_id *cm_id,
ctx = cm_id->context;
uevent = kmalloc(sizeof(*uevent), GFP_KERNEL);
uevent = kzalloc(sizeof *uevent, GFP_KERNEL);
if (!uevent)
goto err1;
memset(uevent, 0, sizeof(*uevent));
uevent->ctx = ctx;
uevent->cm_id = cm_id;
uevent->resp.uid = ctx->uid;
......@@ -1345,11 +1343,10 @@ static void ib_ucm_add_one(struct ib_device *device)
if (!device->alloc_ucontext)
return;
ucm_dev = kmalloc(sizeof *ucm_dev, GFP_KERNEL);
ucm_dev = kzalloc(sizeof *ucm_dev, GFP_KERNEL);
if (!ucm_dev)
return;
memset(ucm_dev, 0, sizeof *ucm_dev);
ucm_dev->ib_dev = device;
ucm_dev->devnum = find_first_zero_bit(dev_map, IB_UCM_MAX_DEVICES);
......
......@@ -725,12 +725,10 @@ static void ib_uverbs_add_one(struct ib_device *device)
if (!device->alloc_ucontext)
return;
uverbs_dev = kmalloc(sizeof *uverbs_dev, GFP_KERNEL);
uverbs_dev = kzalloc(sizeof *uverbs_dev, GFP_KERNEL);
if (!uverbs_dev)
return;
memset(uverbs_dev, 0, sizeof *uverbs_dev);
kref_init(&uverbs_dev->ref);
spin_lock(&map_lock);
......
......@@ -140,13 +140,11 @@ static int __devinit mthca_buddy_init(struct mthca_buddy *buddy, int max_order)
buddy->max_order = max_order;
spin_lock_init(&buddy->lock);
buddy->bits = kmalloc((buddy->max_order + 1) * sizeof (long *),
buddy->bits = kzalloc((buddy->max_order + 1) * sizeof (long *),
GFP_KERNEL);
if (!buddy->bits)
goto err_out;
memset(buddy->bits, 0, (buddy->max_order + 1) * sizeof (long *));
for (i = 0; i <= buddy->max_order; ++i) {
s = BITS_TO_LONGS(1 << (buddy->max_order - i));
buddy->bits[i] = kmalloc(s * sizeof (long), GFP_KERNEL);
......
......@@ -80,12 +80,10 @@ u64 mthca_make_profile(struct mthca_dev *dev,
struct mthca_resource tmp;
int i, j;
profile = kmalloc(MTHCA_RES_NUM * sizeof *profile, GFP_KERNEL);
profile = kzalloc(MTHCA_RES_NUM * sizeof *profile, GFP_KERNEL);
if (!profile)
return -ENOMEM;
memset(profile, 0, MTHCA_RES_NUM * sizeof *profile);
profile[MTHCA_RES_QP].size = dev_lim->qpc_entry_sz;
profile[MTHCA_RES_EEC].size = dev_lim->eec_entry_sz;
profile[MTHCA_RES_SRQ].size = dev_lim->srq_entry_sz;
......
......@@ -729,25 +729,21 @@ int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port)
/* Allocate RX/TX "rings" to hold queued skbs */
priv->rx_ring = kmalloc(IPOIB_RX_RING_SIZE * sizeof (struct ipoib_rx_buf),
priv->rx_ring = kzalloc(IPOIB_RX_RING_SIZE * sizeof (struct ipoib_rx_buf),
GFP_KERNEL);
if (!priv->rx_ring) {
printk(KERN_WARNING "%s: failed to allocate RX ring (%d entries)\n",
ca->name, IPOIB_RX_RING_SIZE);
goto out;
}
memset(priv->rx_ring, 0,
IPOIB_RX_RING_SIZE * sizeof (struct ipoib_rx_buf));
priv->tx_ring = kmalloc(IPOIB_TX_RING_SIZE * sizeof (struct ipoib_tx_buf),
priv->tx_ring = kzalloc(IPOIB_TX_RING_SIZE * sizeof (struct ipoib_tx_buf),
GFP_KERNEL);
if (!priv->tx_ring) {
printk(KERN_WARNING "%s: failed to allocate TX ring (%d entries)\n",
ca->name, IPOIB_TX_RING_SIZE);
goto out_rx_ring_cleanup;
}
memset(priv->tx_ring, 0,
IPOIB_TX_RING_SIZE * sizeof (struct ipoib_tx_buf));
/* priv->tx_head & tx_tail are already 0 */
......
......@@ -135,12 +135,10 @@ static struct ipoib_mcast *ipoib_mcast_alloc(struct net_device *dev,
{
struct ipoib_mcast *mcast;
mcast = kmalloc(sizeof (*mcast), can_sleep ? GFP_KERNEL : GFP_ATOMIC);
mcast = kzalloc(sizeof *mcast, can_sleep ? GFP_KERNEL : GFP_ATOMIC);
if (!mcast)
return NULL;
memset(mcast, 0, sizeof (*mcast));
init_completion(&mcast->done);
mcast->dev = dev;
......
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