| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Thu, 21 Oct 2010 10:25:39 +0200
From: Stanislaw Gruszka <sgruszka@...hat.com>
To: Francois Romieu <romieu@...zoreil.com>, netdev@...r.kernel.org
Cc: Denis Kirjanov <kirjanov@...il.com>,
Stanislaw Gruszka <sgruszka@...hat.com>
Subject: [PATCH 4/8] r8169: use pointer to struct device as local variable
Signed-off-by: Stanislaw Gruszka <sgruszka@...hat.com>
---
drivers/net/r8169.c | 51 +++++++++++++++++++++++++--------------------------
1 files changed, 25 insertions(+), 26 deletions(-)
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 7ad119f..0a797d0 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -1200,6 +1200,7 @@ static void rtl8169_update_counters(struct net_device *dev)
dma_addr_t paddr;
u32 cmd;
int wait = 1000;
+ struct device *d = &tp->pci_dev->dev;
/*
* Some chips are unable to dump tally counters when the receiver
@@ -1208,8 +1209,7 @@ static void rtl8169_update_counters(struct net_device *dev)
if ((RTL_R8(ChipCmd) & CmdRxEnb) == 0)
return;
- counters = dma_alloc_coherent(&tp->pci_dev->dev, sizeof(*counters),
- &paddr, GFP_KERNEL);
+ counters = dma_alloc_coherent(d, sizeof(*counters), &paddr, GFP_KERNEL);
if (!counters)
return;
@@ -1230,8 +1230,7 @@ static void rtl8169_update_counters(struct net_device *dev)
RTL_W32(CounterAddrLow, 0);
RTL_W32(CounterAddrHigh, 0);
- dma_free_coherent(&tp->pci_dev->dev, sizeof(*counters), counters,
- paddr);
+ dma_free_coherent(d, sizeof(*counters), counters, paddr);
}
static void rtl8169_get_ethtool_stats(struct net_device *dev,
@@ -3945,10 +3944,9 @@ static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
static void rtl8169_free_rx_databuff(struct rtl8169_private *tp,
void **data_buff, struct RxDesc *desc)
{
- struct pci_dev *pdev = tp->pci_dev;
-
- dma_unmap_single(&pdev->dev, le64_to_cpu(desc->addr), rx_buf_sz,
+ dma_unmap_single(&tp->pci_dev->dev, le64_to_cpu(desc->addr), rx_buf_sz,
DMA_FROM_DEVICE);
+
kfree(*data_buff);
*data_buff = NULL;
rtl8169_make_unusable_by_asic(desc);
@@ -3979,6 +3977,7 @@ static struct sk_buff *rtl8169_alloc_rx_data(struct rtl8169_private *tp,
{
void *data;
dma_addr_t mapping;
+ struct device *d = &tp->pci_dev->dev;
struct net_device *dev = tp->dev;
int node = dev->dev.parent ? dev_to_node(dev->dev.parent) : -1;
@@ -3993,9 +3992,9 @@ static struct sk_buff *rtl8169_alloc_rx_data(struct rtl8169_private *tp,
return NULL;
}
- mapping = dma_map_single(&tp->pci_dev->dev, rtl8169_align(data), rx_buf_sz,
+ mapping = dma_map_single(d, rtl8169_align(data), rx_buf_sz,
DMA_FROM_DEVICE);
- if (unlikely(dma_mapping_error(&tp->pci_dev->dev, mapping)))
+ if (unlikely(dma_mapping_error(d, mapping)))
goto err_out;
rtl8169_map_to_asic(desc, mapping, rx_buf_sz);
@@ -4066,13 +4065,13 @@ static int rtl8169_init_ring(struct net_device *dev)
return rtl8169_rx_fill(tp);
}
-static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb,
+static void rtl8169_unmap_tx_skb(struct device *d, struct ring_info *tx_skb,
struct TxDesc *desc)
{
unsigned int len = tx_skb->len;
- dma_unmap_single(&pdev->dev, le64_to_cpu(desc->addr), len,
- DMA_TO_DEVICE);
+ dma_unmap_single(d, le64_to_cpu(desc->addr), len, DMA_TO_DEVICE);
+
desc->opts1 = 0x00;
desc->opts2 = 0x00;
desc->addr = 0x00;
@@ -4092,7 +4091,7 @@ static void rtl8169_tx_clear_range(struct rtl8169_private *tp, u32 start,
if (len) {
struct sk_buff *skb = tx_skb->skb;
- rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb,
+ rtl8169_unmap_tx_skb(&tp->pci_dev->dev, tx_skb,
tp->TxDescArray + entry);
if (skb) {
dev_kfree_skb(skb);
@@ -4209,6 +4208,7 @@ static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
struct skb_shared_info *info = skb_shinfo(skb);
unsigned int cur_frag, entry;
struct TxDesc * uninitialized_var(txd);
+ struct device *d = &tp->pci_dev->dev;
entry = tp->cur_tx;
for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
@@ -4222,9 +4222,8 @@ static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
txd = tp->TxDescArray + entry;
len = frag->size;
addr = ((void *) page_address(frag->page)) + frag->page_offset;
- mapping = dma_map_single(&tp->pci_dev->dev, addr, len,
- DMA_TO_DEVICE);
- if (unlikely(dma_mapping_error(&tp->pci_dev->dev, mapping)))
+ mapping = dma_map_single(d, addr, len, DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(d, mapping)))
goto err_out;
/* anti gcc 2.95.3 bugware (sic) */
@@ -4275,6 +4274,7 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
unsigned int entry = tp->cur_tx % NUM_TX_DESC;
struct TxDesc *txd = tp->TxDescArray + entry;
void __iomem *ioaddr = tp->mmio_addr;
+ struct device *d = &tp->pci_dev->dev;
dma_addr_t mapping;
u32 status, len;
u32 opts1;
@@ -4289,9 +4289,8 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
goto err_stop_0;
len = skb_headlen(skb);
- mapping = dma_map_single(&tp->pci_dev->dev, skb->data, len,
- DMA_TO_DEVICE);
- if (unlikely(dma_mapping_error(&tp->pci_dev->dev, mapping)))
+ mapping = dma_map_single(d, skb->data, len, DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(d, mapping)))
goto err_dma_0;
tp->tx_skb[entry].len = len;
@@ -4332,7 +4331,7 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
return NETDEV_TX_OK;
err_dma_1:
- rtl8169_unmap_tx_skb(tp->pci_dev, tp->tx_skb + entry, txd);
+ rtl8169_unmap_tx_skb(d, tp->tx_skb + entry, txd);
err_dma_0:
dev_kfree_skb(skb);
dev->stats.tx_dropped++;
@@ -4414,8 +4413,8 @@ static void rtl8169_tx_interrupt(struct net_device *dev,
dev->stats.tx_bytes += len;
dev->stats.tx_packets++;
- rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry);
-
+ rtl8169_unmap_tx_skb(&tp->pci_dev->dev, tx_skb,
+ tp->TxDescArray + entry);
if (status & LastFrag) {
dev_kfree_skb(tx_skb->skb);
tx_skb->skb = NULL;
@@ -4466,16 +4465,16 @@ static struct sk_buff *rtl8169_try_rx_copy(void *data,
dma_addr_t addr)
{
struct sk_buff *skb;
+ struct device *d = &tp->pci_dev->dev;
data = rtl8169_align(data);
- dma_sync_single_for_cpu(&tp->pci_dev->dev, addr, pkt_size,
- DMA_FROM_DEVICE);
+ dma_sync_single_for_cpu(d, addr, pkt_size, DMA_FROM_DEVICE);
prefetch(data);
skb = netdev_alloc_skb_ip_align(tp->dev, pkt_size);
if (skb)
memcpy(skb->data, data, pkt_size);
- dma_sync_single_for_device(&tp->pci_dev->dev, addr, pkt_size,
- DMA_FROM_DEVICE);
+ dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE);
+
return skb;
}
--
1.6.5.2
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists