2016-11-07 22:13:34

by Nadim Almas

Subject: [PATCH] Staging: used dma_map_single in place of pci_map_single

pci_map_single is unneeded and can be replaced with dma_map_single
to avoid inconcitent api usage.
The Coccinelle semantic patch used to make this change is as follows:
@@ expression E1,E2,E3; @@
- pci_map_single(E1,
+ dma_map_single(&E1->dev,
E2, E3,
(
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRCTIONAL
|
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE
|
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE
|
- PCI_DMA_NONE
+ DMA_NONE_DEVICE
)
)
Signed-off-by: Nadim Almas <[email protected]>
---
drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c | 10 ++++++----
drivers/staging/rtl8192e/rtl8192e/rtl_core.c | 12 ++++++------
drivers/staging/slicoss/slicoss.c | 12 ++++++------
3 files changed, 18 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
index 8d6bca6..a3c8c3a 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
@@ -1184,8 +1184,9 @@ void rtl92e_fill_tx_desc(struct net_device *dev, struct tx_desc *pdesc,
struct cb_desc *cb_desc, struct sk_buff *skb)
{
struct r8192_priv *priv = rtllib_priv(dev);
- dma_addr_t mapping = pci_map_single(priv->pdev, skb->data, skb->len,
- PCI_DMA_TODEVICE);
+ dma_addr_t mapping = dma_map_single(&priv->pdev->dev, skb->data,
+ skb->len,
+ DMA_TO_DEVICE);
struct tx_fwinfo_8190pci *pTxFwInfo;

pTxFwInfo = (struct tx_fwinfo_8190pci *)skb->data;
@@ -1292,8 +1293,9 @@ void rtl92e_fill_tx_cmd_desc(struct net_device *dev, struct tx_desc_cmd *entry,
struct cb_desc *cb_desc, struct sk_buff *skb)
{
struct r8192_priv *priv = rtllib_priv(dev);
- dma_addr_t mapping = pci_map_single(priv->pdev, skb->data, skb->len,
- PCI_DMA_TODEVICE);
+ dma_addr_t mapping = dma_map_single(&priv->pdev->dev, skb->data,
+ skb->len,
+ DMA_TO_DEVICE);

if (pci_dma_mapping_error(priv->pdev, mapping))
netdev_err(dev, "%s(): DMA Mapping error\n", __func__);
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index f985d88..ddd6523 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -1826,10 +1826,10 @@ static short _rtl92e_alloc_rx_ring(struct net_device *dev)
skb->dev = dev;
priv->rx_buf[rx_queue_idx][i] = skb;
mapping = (dma_addr_t *)skb->cb;
- *mapping = pci_map_single(priv->pdev,
+ *mapping = dma_map_single(&priv->pdev->dev,
skb_tail_pointer_rsl(skb),
priv->rxbuffersize,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
if (pci_dma_mapping_error(priv->pdev, *mapping)) {
dev_kfree_skb_any(skb);
return -1;
@@ -2104,10 +2104,10 @@ static void _rtl92e_rx_normal(struct net_device *dev)

priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
skb;
- *((dma_addr_t *) skb->cb) = pci_map_single(priv->pdev,
- skb_tail_pointer_rsl(skb),
- priv->rxbuffersize,
- PCI_DMA_FROMDEVICE);
+ *((dma_addr_t *) skb->cb) = dma_map_single(&priv->pdev->dev,
+ skb_tail_pointer_rsl(skb),
+ priv->rxbuffersize,
+ DMA_FROM_DEVICE);
if (pci_dma_mapping_error(priv->pdev,
*((dma_addr_t *)skb->cb))) {
dev_kfree_skb_any(skb);
diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index 062307a..2d76bfd 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -1452,10 +1452,10 @@ static int slic_rcvqueue_fill(struct adapter *adapter)
skb = alloc_skb(SLIC_RCVQ_RCVBUFSIZE, GFP_ATOMIC);
if (skb) {
paddr = (void *)(unsigned long)
- pci_map_single(adapter->pcidev,
+ dma_map_single(&adapter->pcidev->dev,
skb->data,
SLIC_RCVQ_RCVBUFSIZE,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
paddrl = SLIC_GET_ADDR_LOW(paddr);
paddrh = SLIC_GET_ADDR_HIGH(paddr);

@@ -1608,8 +1608,8 @@ static u32 slic_rcvqueue_reinsert(struct adapter *adapter, struct sk_buff *skb)
struct device *dev;

paddr = (void *)(unsigned long)
- pci_map_single(adapter->pcidev, skb->head,
- SLIC_RCVQ_RCVBUFSIZE, PCI_DMA_FROMDEVICE);
+ dma_map_single(&adapter->pcidev->dev, skb->head,
+ SLIC_RCVQ_RCVBUFSIZE, DMA_FROM_DEVICE);
rcvbuf->status = 0;
skb->next = NULL;

@@ -1774,8 +1774,8 @@ static void slic_xmit_build_request(struct adapter *adapter,
ihcmd->flags = adapter->port << IHFLG_IFSHFT;
ihcmd->command = IHCMD_XMT_REQ;
ihcmd->u.slic_buffers.totlen = skb->len;
- phys_addr = pci_map_single(adapter->pcidev, skb->data, skb->len,
- PCI_DMA_TODEVICE);
+ phys_addr = dma_map_single(&adapter->pcidev->dev, skb->data, skb->len,
+ DMA_TO_DEVICE);
if (pci_dma_mapping_error(adapter->pcidev, phys_addr)) {
kfree_skb(skb);
dev_err(&adapter->pcidev->dev, "DMA mapping error\n");
--
2.7.4

2016-11-10 12:55:28

by Greg Kroah-Hartman

Subject: Re: [PATCH] Staging: used dma_map_single in place of pci_map_single

On Tue, Nov 08, 2016 at 02:52:08AM +0530, Nadim Almas wrote:
> pci_map_single is unneeded and can be replaced with dma_map_single
> to avoid inconcitent api usage.
> The Coccinelle semantic patch used to make this change is as follows:
> @@ expression E1,E2,E3; @@
> - pci_map_single(E1,
> + dma_map_single(&E1->dev,
> E2, E3,
> (
> - PCI_DMA_BIDIRECTIONAL
> + DMA_BIDIRCTIONAL
> |
> - PCI_DMA_TODEVICE
> + DMA_TO_DEVICE
> |
> - PCI_DMA_FROMDEVICE
> + DMA_FROM_DEVICE
> |
> - PCI_DMA_NONE
> + DMA_NONE_DEVICE
> )
> )
> Signed-off-by: Nadim Almas <[email protected]>
> ---
> drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c | 10 ++++++----
> drivers/staging/rtl8192e/rtl8192e/rtl_core.c | 12 ++++++------
> drivers/staging/slicoss/slicoss.c | 12 ++++++------
> 3 files changed, 18 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
> index 8d6bca6..a3c8c3a 100644
> --- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
> +++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
> @@ -1184,8 +1184,9 @@ void rtl92e_fill_tx_desc(struct net_device *dev, struct tx_desc *pdesc,
> struct cb_desc *cb_desc, struct sk_buff *skb)
> {
> struct r8192_priv *priv = rtllib_priv(dev);
> - dma_addr_t mapping = pci_map_single(priv->pdev, skb->data, skb->len,
> - PCI_DMA_TODEVICE);
> + dma_addr_t mapping = dma_map_single(&priv->pdev->dev, skb->data,
> + skb->len,
> + DMA_TO_DEVICE);
> struct tx_fwinfo_8190pci *pTxFwInfo;
>
> pTxFwInfo = (struct tx_fwinfo_8190pci *)skb->data;
> @@ -1292,8 +1293,9 @@ void rtl92e_fill_tx_cmd_desc(struct net_device *dev, struct tx_desc_cmd *entry,
> struct cb_desc *cb_desc, struct sk_buff *skb)
> {
> struct r8192_priv *priv = rtllib_priv(dev);
> - dma_addr_t mapping = pci_map_single(priv->pdev, skb->data, skb->len,
> - PCI_DMA_TODEVICE);
> + dma_addr_t mapping = dma_map_single(&priv->pdev->dev, skb->data,
> + skb->len,
> + DMA_TO_DEVICE);
>
> if (pci_dma_mapping_error(priv->pdev, mapping))
> netdev_err(dev, "%s(): DMA Mapping error\n", __func__);
> diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
> index f985d88..ddd6523 100644
> --- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
> +++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
> @@ -1826,10 +1826,10 @@ static short _rtl92e_alloc_rx_ring(struct net_device *dev)
> skb->dev = dev;
> priv->rx_buf[rx_queue_idx][i] = skb;
> mapping = (dma_addr_t *)skb->cb;
> - *mapping = pci_map_single(priv->pdev,
> + *mapping = dma_map_single(&priv->pdev->dev,
> skb_tail_pointer_rsl(skb),
> priv->rxbuffersize,
> - PCI_DMA_FROMDEVICE);
> + DMA_FROM_DEVICE);
> if (pci_dma_mapping_error(priv->pdev, *mapping)) {
> dev_kfree_skb_any(skb);
> return -1;
> @@ -2104,10 +2104,10 @@ static void _rtl92e_rx_normal(struct net_device *dev)
>
> priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
> skb;
> - *((dma_addr_t *) skb->cb) = pci_map_single(priv->pdev,
> - skb_tail_pointer_rsl(skb),
> - priv->rxbuffersize,
> - PCI_DMA_FROMDEVICE);
> + *((dma_addr_t *) skb->cb) = dma_map_single(&priv->pdev->dev,
> + skb_tail_pointer_rsl(skb),
> + priv->rxbuffersize,
> + DMA_FROM_DEVICE);
> if (pci_dma_mapping_error(priv->pdev,
> *((dma_addr_t *)skb->cb))) {
> dev_kfree_skb_any(skb);
> diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
> index 062307a..2d76bfd 100644
> --- a/drivers/staging/slicoss/slicoss.c
> +++ b/drivers/staging/slicoss/slicoss.c
> @@ -1452,10 +1452,10 @@ static int slic_rcvqueue_fill(struct adapter *adapter)
> skb = alloc_skb(SLIC_RCVQ_RCVBUFSIZE, GFP_ATOMIC);
> if (skb) {
> paddr = (void *)(unsigned long)
> - pci_map_single(adapter->pcidev,
> + dma_map_single(&adapter->pcidev->dev,
> skb->data,
> SLIC_RCVQ_RCVBUFSIZE,
> - PCI_DMA_FROMDEVICE);
> + DMA_FROM_DEVICE);
> paddrl = SLIC_GET_ADDR_LOW(paddr);
> paddrh = SLIC_GET_ADDR_HIGH(paddr);
>
> @@ -1608,8 +1608,8 @@ static u32 slic_rcvqueue_reinsert(struct adapter *adapter, struct sk_buff *skb)
> struct device *dev;
>
> paddr = (void *)(unsigned long)
> - pci_map_single(adapter->pcidev, skb->head,
> - SLIC_RCVQ_RCVBUFSIZE, PCI_DMA_FROMDEVICE);
> + dma_map_single(&adapter->pcidev->dev, skb->head,
> + SLIC_RCVQ_RCVBUFSIZE, DMA_FROM_DEVICE);
> rcvbuf->status = 0;
> skb->next = NULL;
>
> @@ -1774,8 +1774,8 @@ static void slic_xmit_build_request(struct adapter *adapter,
> ihcmd->flags = adapter->port << IHFLG_IFSHFT;
> ihcmd->command = IHCMD_XMT_REQ;
> ihcmd->u.slic_buffers.totlen = skb->len;
> - phys_addr = pci_map_single(adapter->pcidev, skb->data, skb->len,
> - PCI_DMA_TODEVICE);
> + phys_addr = dma_map_single(&adapter->pcidev->dev, skb->data, skb->len,
> + DMA_TO_DEVICE);
> if (pci_dma_mapping_error(adapter->pcidev, phys_addr)) {
> kfree_skb(skb);
> dev_err(&adapter->pcidev->dev, "DMA mapping error\n");

This patch does not apply to my staging-testing branch :(

Please fix up and resend, preferably one patch per driver.

thanks,

greg k-h