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Date: Tue, 12 Dec 2006 21:08:58 +0200
From: Yan Burman <burman.yan@...il.com>
To: linux-kernel@...r.kernel.org
Cc: auke-jan.h.kok@...el.com
Subject: [PATCH 2.6.19] e1000: Replace kmalloc+memset with kcalloc + remove
now unused size variable
Replace kmalloc+memset with kcalloc and remove unused size variable
Signed-off-by: Yan Burman <burman.yan@...il.com>
diff -rubp linux-2.6.19_orig/drivers/net/e1000/e1000_ethtool.c linux-2.6.19/drivers/net/e1000/e1000_ethtool.c
--- linux-2.6.19_orig/drivers/net/e1000/e1000_ethtool.c 2006-11-30 21:28:21.000000000 +0200
+++ linux-2.6.19/drivers/net/e1000/e1000_ethtool.c 2006-12-12 20:54:31.000000000 +0200
@@ -1045,19 +1045,18 @@ e1000_setup_desc_rings(struct e1000_adap
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(size, 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);
@@ -1108,12 +1107,11 @@ e1000_setup_desc_rings(struct e1000_adap
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 -rubp linux-2.6.19_orig/drivers/net/e1000/e1000_main.c linux-2.6.19/drivers/net/e1000/e1000_main.c
--- linux-2.6.19_orig/drivers/net/e1000/e1000_main.c 2006-11-30 21:28:21.000000000 +0200
+++ linux-2.6.19/drivers/net/e1000/e1000_main.c 2006-12-12 20:52:31.000000000 +0200
@@ -1225,31 +1225,26 @@ e1000_sw_init(struct e1000_adapter *adap
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;
@@ -1614,10 +1609,9 @@ e1000_setup_rx_resources(struct e1000_ad
struct e1000_rx_ring *rxdr)
{
struct pci_dev *pdev = adapter->pdev;
- int size, desc_len;
+ int desc_len;
- size = sizeof(struct e1000_buffer) * rxdr->count;
- rxdr->buffer_info = vmalloc(size);
+ rxdr->buffer_info = vmalloc(sizeof(struct e1000_buffer) * rxdr->count);
if (!rxdr->buffer_info) {
DPRINTK(PROBE, ERR,
"Unable to allocate memory for the receive descriptor ring\n");
@@ -1625,18 +1619,17 @@ e1000_setup_rx_resources(struct e1000_ad
}
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);
@@ -1644,7 +1637,6 @@ e1000_setup_rx_resources(struct e1000_ad
"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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