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Date: Tue, 06 Mar 2007 08:58:04 -0800
From: Auke Kok <auke-jan.h.kok@...el.com>
To: jgarzik@...ox.com
Cc: netdev@...r.kernel.org, john.ronciak@...el.com,
jesse.brandeburg@...el.com
Subject: [PATCH 2/3] e1000: Use kcalloc()
From: Yan Burman <burman.yan@...il.com>
Replace kmalloc+memsetout the driver. Slightly modified by Auke Kok.
Signed-off-by: Yan Burman <burman.yan@...il.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@...el.com>
---
drivers/net/e1000/e1000_ethtool.c | 26 ++++++++++++--------------
drivers/net/e1000/e1000_main.c | 29 ++++++++++++-----------------
2 files changed, 24 insertions(+), 31 deletions(-)
diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c
index a094288..2881da1 100644
--- a/drivers/net/e1000/e1000_ethtool.c
+++ b/drivers/net/e1000/e1000_ethtool.c
@@ -654,14 +654,11 @@ e1000_set_ringparam(struct net_device *netdev,
e1000_mac_type mac_type = adapter->hw.mac_type;
struct e1000_tx_ring *txdr, *tx_old;
struct e1000_rx_ring *rxdr, *rx_old;
- int i, err, tx_ring_size, rx_ring_size;
+ int i, err;
if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
return -EINVAL;
- tx_ring_size = sizeof(struct e1000_tx_ring) * adapter->num_tx_queues;
- rx_ring_size = sizeof(struct e1000_rx_ring) * adapter->num_rx_queues;
-
while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
msleep(1);
@@ -672,11 +669,11 @@ e1000_set_ringparam(struct net_device *netdev,
rx_old = adapter->rx_ring;
err = -ENOMEM;
- txdr = kzalloc(tx_ring_size, GFP_KERNEL);
+ txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring), GFP_KERNEL);
if (!txdr)
goto err_alloc_tx;
- rxdr = kzalloc(rx_ring_size, GFP_KERNEL);
+ rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring), GFP_KERNEL);
if (!rxdr)
goto err_alloc_rx;
@@ -1053,23 +1050,24 @@ e1000_setup_desc_rings(struct e1000_adapter *adapter)
struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
struct pci_dev *pdev = adapter->pdev;
uint32_t rctl;
- int size, i, ret_val;
+ int i, ret_val;
/* Setup Tx descriptor ring and Tx buffers */
if (!txdr->count)
txdr->count = E1000_DEFAULT_TXD;
- size = txdr->count * sizeof(struct e1000_buffer);
- if (!(txdr->buffer_info = kmalloc(size, GFP_KERNEL))) {
+ if (!(txdr->buffer_info = kcalloc(txdr->count,
+ sizeof(struct e1000_buffer),
+ GFP_KERNEL))) {
ret_val = 1;
goto err_nomem;
}
- memset(txdr->buffer_info, 0, size);
txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
E1000_ROUNDUP(txdr->size, 4096);
- if (!(txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma))) {
+ if (!(txdr->desc = pci_alloc_consistent(pdev, txdr->size,
+ &txdr->dma))) {
ret_val = 2;
goto err_nomem;
}
@@ -1116,12 +1114,12 @@ e1000_setup_desc_rings(struct e1000_adapter *adapter)
if (!rxdr->count)
rxdr->count = E1000_DEFAULT_RXD;
- size = rxdr->count * sizeof(struct e1000_buffer);
- if (!(rxdr->buffer_info = kmalloc(size, GFP_KERNEL))) {
+ if (!(rxdr->buffer_info = kcalloc(rxdr->count,
+ sizeof(struct e1000_buffer),
+ GFP_KERNEL))) {
ret_val = 4;
goto err_nomem;
}
- memset(rxdr->buffer_info, 0, size);
rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
if (!(rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma))) {
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 7bbefca..530d5d7 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -1354,31 +1354,27 @@ e1000_sw_init(struct e1000_adapter *adapter)
static int __devinit
e1000_alloc_queues(struct e1000_adapter *adapter)
{
- int size;
-
- size = sizeof(struct e1000_tx_ring) * adapter->num_tx_queues;
- adapter->tx_ring = kmalloc(size, GFP_KERNEL);
+ adapter->tx_ring = kcalloc(adapter->num_tx_queues,
+ sizeof(struct e1000_tx_ring), GFP_KERNEL);
if (!adapter->tx_ring)
return -ENOMEM;
- memset(adapter->tx_ring, 0, size);
- size = sizeof(struct e1000_rx_ring) * adapter->num_rx_queues;
- adapter->rx_ring = kmalloc(size, GFP_KERNEL);
+ adapter->rx_ring = kcalloc(adapter->num_rx_queues,
+ sizeof(struct e1000_rx_ring), GFP_KERNEL);
if (!adapter->rx_ring) {
kfree(adapter->tx_ring);
return -ENOMEM;
}
- memset(adapter->rx_ring, 0, size);
#ifdef CONFIG_E1000_NAPI
- size = sizeof(struct net_device) * adapter->num_rx_queues;
- adapter->polling_netdev = kmalloc(size, GFP_KERNEL);
+ adapter->polling_netdev = kcalloc(adapter->num_rx_queues,
+ sizeof(struct net_device),
+ GFP_KERNEL);
if (!adapter->polling_netdev) {
kfree(adapter->tx_ring);
kfree(adapter->rx_ring);
return -ENOMEM;
}
- memset(adapter->polling_netdev, 0, size);
#endif
return E1000_SUCCESS;
@@ -1774,18 +1770,18 @@ e1000_setup_rx_resources(struct e1000_adapter *adapter,
}
memset(rxdr->buffer_info, 0, size);
- size = sizeof(struct e1000_ps_page) * rxdr->count;
- rxdr->ps_page = kmalloc(size, GFP_KERNEL);
+ rxdr->ps_page = kcalloc(rxdr->count, sizeof(struct e1000_ps_page),
+ GFP_KERNEL);
if (!rxdr->ps_page) {
vfree(rxdr->buffer_info);
DPRINTK(PROBE, ERR,
"Unable to allocate memory for the receive descriptor ring\n");
return -ENOMEM;
}
- memset(rxdr->ps_page, 0, size);
- size = sizeof(struct e1000_ps_page_dma) * rxdr->count;
- rxdr->ps_page_dma = kmalloc(size, GFP_KERNEL);
+ rxdr->ps_page_dma = kcalloc(rxdr->count,
+ sizeof(struct e1000_ps_page_dma),
+ GFP_KERNEL);
if (!rxdr->ps_page_dma) {
vfree(rxdr->buffer_info);
kfree(rxdr->ps_page);
@@ -1793,7 +1789,6 @@ e1000_setup_rx_resources(struct e1000_adapter *adapter,
"Unable to allocate memory for the receive descriptor ring\n");
return -ENOMEM;
}
- memset(rxdr->ps_page_dma, 0, size);
if (adapter->hw.mac_type <= e1000_82547_rev_2)
desc_len = sizeof(struct e1000_rx_desc);
-
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