* [PATCH] tlan: switch from 'pci_' to 'dma_' API
@ 2020-09-12 7:43 ` Christophe JAILLET
0 siblings, 0 replies; 8+ messages in thread
From: Christophe JAILLET @ 2020-09-12 7:43 UTC (permalink / raw)
To: davem, kuba, chessman
Cc: netdev, linux-kernel, kernel-janitors, Christophe JAILLET
The wrappers in include/linux/pci-dma-compat.h should go away.
The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.
When memory is allocated in 'tlan_init()' GFP_KERNEL can be used because
it is only called from a probe function or a module_init function and no
lock is taken in the between.
The call chain is:
tlan_probe (module_init function)
--> tlan_eisa_probe
or
tlan_init_one (probe function)
then in both cases:
--> tlan_probe1
--> tlan_init
@@
@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL
@@
@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE
@@
@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE
@@
@@
- PCI_DMA_NONE
+ DMA_NONE
@@
expression e1, e2, e3;
@@
- pci_alloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3;
@@
- pci_zalloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3, e4;
@@
- pci_free_consistent(e1, e2, e3, e4)
+ dma_free_coherent(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_single(e1, e2, e3, e4)
+ dma_map_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_single(e1, e2, e3, e4)
+ dma_unmap_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4, e5;
@@
- pci_map_page(e1, e2, e3, e4, e5)
+ dma_map_page(&e1->dev, e2, e3, e4, e5)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_page(e1, e2, e3, e4)
+ dma_unmap_page(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_sg(e1, e2, e3, e4)
+ dma_map_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_sg(e1, e2, e3, e4)
+ dma_unmap_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+ dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_device(e1, e2, e3, e4)
+ dma_sync_single_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+ dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+ dma_sync_sg_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2;
@@
- pci_dma_mapping_error(e1, e2)
+ dma_mapping_error(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_dma_mask(e1, e2)
+ dma_set_mask(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_consistent_dma_mask(e1, e2)
+ dma_set_coherent_mask(&e1->dev, e2)
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
If needed, see post from Christoph Hellwig on the kernel-janitors ML:
https://marc.info/?l=kernel-janitors&m=158745678307186&w=4
---
drivers/net/ethernet/ti/tlan.c | 61 ++++++++++++++++------------------
1 file changed, 28 insertions(+), 33 deletions(-)
diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
index 76a342ea3797..1203a3c0febb 100644
--- a/drivers/net/ethernet/ti/tlan.c
+++ b/drivers/net/ethernet/ti/tlan.c
@@ -305,9 +305,8 @@ static void tlan_remove_one(struct pci_dev *pdev)
unregister_netdev(dev);
if (priv->dma_storage) {
- pci_free_consistent(priv->pci_dev,
- priv->dma_size, priv->dma_storage,
- priv->dma_storage_dma);
+ dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
+ priv->dma_storage, priv->dma_storage_dma);
}
#ifdef CONFIG_PCI
@@ -482,7 +481,7 @@ static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
priv->adapter = &board_info[ent->driver_data];
- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
pr_err("No suitable PCI mapping available\n");
goto err_out_free_dev;
@@ -584,8 +583,8 @@ static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
return 0;
err_out_uninit:
- pci_free_consistent(priv->pci_dev, priv->dma_size, priv->dma_storage,
- priv->dma_storage_dma);
+ dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
+ priv->dma_storage, priv->dma_storage_dma);
err_out_free_dev:
free_netdev(dev);
err_out_regions:
@@ -609,9 +608,9 @@ static void tlan_eisa_cleanup(void)
dev = tlan_eisa_devices;
priv = netdev_priv(dev);
if (priv->dma_storage) {
- pci_free_consistent(priv->pci_dev, priv->dma_size,
- priv->dma_storage,
- priv->dma_storage_dma);
+ dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
+ priv->dma_storage,
+ priv->dma_storage_dma);
}
release_region(dev->base_addr, 0x10);
unregister_netdev(dev);
@@ -826,9 +825,8 @@ static int tlan_init(struct net_device *dev)
dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS)
* (sizeof(struct tlan_list));
- priv->dma_storage = pci_alloc_consistent(priv->pci_dev,
- dma_size,
- &priv->dma_storage_dma);
+ priv->dma_storage = dma_alloc_coherent(&priv->pci_dev->dev, dma_size,
+ &priv->dma_storage_dma, GFP_KERNEL);
priv->dma_size = dma_size;
if (priv->dma_storage == NULL) {
@@ -1069,9 +1067,9 @@ static netdev_tx_t tlan_start_tx(struct sk_buff *skb, struct net_device *dev)
tail_list->forward = 0;
- tail_list->buffer[0].address = pci_map_single(priv->pci_dev,
+ tail_list->buffer[0].address = dma_map_single(&priv->pci_dev->dev,
skb->data, txlen,
- PCI_DMA_TODEVICE);
+ DMA_TO_DEVICE);
tlan_store_skb(tail_list, skb);
tail_list->frame_size = (u16) txlen;
@@ -1365,10 +1363,10 @@ static u32 tlan_handle_tx_eof(struct net_device *dev, u16 host_int)
struct sk_buff *skb = tlan_get_skb(head_list);
ack++;
- pci_unmap_single(priv->pci_dev, head_list->buffer[0].address,
- max(skb->len,
- (unsigned int)TLAN_MIN_FRAME_SIZE),
- PCI_DMA_TODEVICE);
+ dma_unmap_single(&priv->pci_dev->dev,
+ head_list->buffer[0].address,
+ max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE),
+ DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
head_list->buffer[8].address = 0;
head_list->buffer[9].address = 0;
@@ -1511,8 +1509,8 @@ static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
goto drop_and_reuse;
skb = tlan_get_skb(head_list);
- pci_unmap_single(priv->pci_dev, frame_dma,
- TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&priv->pci_dev->dev, frame_dma,
+ TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
skb_put(skb, frame_size);
dev->stats.rx_bytes += frame_size;
@@ -1521,8 +1519,8 @@ static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
netif_rx(skb);
head_list->buffer[0].address =
- pci_map_single(priv->pci_dev, new_skb->data,
- TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
+ dma_map_single(&priv->pci_dev->dev, new_skb->data,
+ TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
tlan_store_skb(head_list, new_skb);
drop_and_reuse:
@@ -1923,10 +1921,10 @@ static void tlan_reset_lists(struct net_device *dev)
if (!skb)
break;
- list->buffer[0].address = pci_map_single(priv->pci_dev,
+ list->buffer[0].address = dma_map_single(&priv->pci_dev->dev,
skb->data,
TLAN_MAX_FRAME_SIZE,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
tlan_store_skb(list, skb);
list->buffer[1].count = 0;
list->buffer[1].address = 0;
@@ -1954,12 +1952,10 @@ static void tlan_free_lists(struct net_device *dev)
list = priv->tx_list + i;
skb = tlan_get_skb(list);
if (skb) {
- pci_unmap_single(
- priv->pci_dev,
- list->buffer[0].address,
- max(skb->len,
- (unsigned int)TLAN_MIN_FRAME_SIZE),
- PCI_DMA_TODEVICE);
+ dma_unmap_single(&priv->pci_dev->dev,
+ list->buffer[0].address,
+ max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE),
+ DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
list->buffer[8].address = 0;
list->buffer[9].address = 0;
@@ -1970,10 +1966,9 @@ static void tlan_free_lists(struct net_device *dev)
list = priv->rx_list + i;
skb = tlan_get_skb(list);
if (skb) {
- pci_unmap_single(priv->pci_dev,
+ dma_unmap_single(&priv->pci_dev->dev,
list->buffer[0].address,
- TLAN_MAX_FRAME_SIZE,
- PCI_DMA_FROMDEVICE);
+ TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
dev_kfree_skb_any(skb);
list->buffer[8].address = 0;
list->buffer[9].address = 0;
--
2.25.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH] tlan: switch from 'pci_' to 'dma_' API
@ 2020-09-12 7:43 ` Christophe JAILLET
0 siblings, 0 replies; 8+ messages in thread
From: Christophe JAILLET @ 2020-09-12 7:43 UTC (permalink / raw)
To: davem, kuba, chessman
Cc: netdev, linux-kernel, kernel-janitors, Christophe JAILLET
The wrappers in include/linux/pci-dma-compat.h should go away.
The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.
When memory is allocated in 'tlan_init()' GFP_KERNEL can be used because
it is only called from a probe function or a module_init function and no
lock is taken in the between.
The call chain is:
tlan_probe (module_init function)
--> tlan_eisa_probe
or
tlan_init_one (probe function)
then in both cases:
--> tlan_probe1
--> tlan_init
@@
@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL
@@
@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE
@@
@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE
@@
@@
- PCI_DMA_NONE
+ DMA_NONE
@@
expression e1, e2, e3;
@@
- pci_alloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3;
@@
- pci_zalloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3, e4;
@@
- pci_free_consistent(e1, e2, e3, e4)
+ dma_free_coherent(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_single(e1, e2, e3, e4)
+ dma_map_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_single(e1, e2, e3, e4)
+ dma_unmap_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4, e5;
@@
- pci_map_page(e1, e2, e3, e4, e5)
+ dma_map_page(&e1->dev, e2, e3, e4, e5)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_page(e1, e2, e3, e4)
+ dma_unmap_page(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_sg(e1, e2, e3, e4)
+ dma_map_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_sg(e1, e2, e3, e4)
+ dma_unmap_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+ dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_device(e1, e2, e3, e4)
+ dma_sync_single_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+ dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+ dma_sync_sg_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2;
@@
- pci_dma_mapping_error(e1, e2)
+ dma_mapping_error(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_dma_mask(e1, e2)
+ dma_set_mask(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_consistent_dma_mask(e1, e2)
+ dma_set_coherent_mask(&e1->dev, e2)
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
If needed, see post from Christoph Hellwig on the kernel-janitors ML:
https://marc.info/?l=kernel-janitors&m\x158745678307186&w=4
---
drivers/net/ethernet/ti/tlan.c | 61 ++++++++++++++++------------------
1 file changed, 28 insertions(+), 33 deletions(-)
diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
index 76a342ea3797..1203a3c0febb 100644
--- a/drivers/net/ethernet/ti/tlan.c
+++ b/drivers/net/ethernet/ti/tlan.c
@@ -305,9 +305,8 @@ static void tlan_remove_one(struct pci_dev *pdev)
unregister_netdev(dev);
if (priv->dma_storage) {
- pci_free_consistent(priv->pci_dev,
- priv->dma_size, priv->dma_storage,
- priv->dma_storage_dma);
+ dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
+ priv->dma_storage, priv->dma_storage_dma);
}
#ifdef CONFIG_PCI
@@ -482,7 +481,7 @@ static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
priv->adapter = &board_info[ent->driver_data];
- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
pr_err("No suitable PCI mapping available\n");
goto err_out_free_dev;
@@ -584,8 +583,8 @@ static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
return 0;
err_out_uninit:
- pci_free_consistent(priv->pci_dev, priv->dma_size, priv->dma_storage,
- priv->dma_storage_dma);
+ dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
+ priv->dma_storage, priv->dma_storage_dma);
err_out_free_dev:
free_netdev(dev);
err_out_regions:
@@ -609,9 +608,9 @@ static void tlan_eisa_cleanup(void)
dev = tlan_eisa_devices;
priv = netdev_priv(dev);
if (priv->dma_storage) {
- pci_free_consistent(priv->pci_dev, priv->dma_size,
- priv->dma_storage,
- priv->dma_storage_dma);
+ dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
+ priv->dma_storage,
+ priv->dma_storage_dma);
}
release_region(dev->base_addr, 0x10);
unregister_netdev(dev);
@@ -826,9 +825,8 @@ static int tlan_init(struct net_device *dev)
dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS)
* (sizeof(struct tlan_list));
- priv->dma_storage = pci_alloc_consistent(priv->pci_dev,
- dma_size,
- &priv->dma_storage_dma);
+ priv->dma_storage = dma_alloc_coherent(&priv->pci_dev->dev, dma_size,
+ &priv->dma_storage_dma, GFP_KERNEL);
priv->dma_size = dma_size;
if (priv->dma_storage = NULL) {
@@ -1069,9 +1067,9 @@ static netdev_tx_t tlan_start_tx(struct sk_buff *skb, struct net_device *dev)
tail_list->forward = 0;
- tail_list->buffer[0].address = pci_map_single(priv->pci_dev,
+ tail_list->buffer[0].address = dma_map_single(&priv->pci_dev->dev,
skb->data, txlen,
- PCI_DMA_TODEVICE);
+ DMA_TO_DEVICE);
tlan_store_skb(tail_list, skb);
tail_list->frame_size = (u16) txlen;
@@ -1365,10 +1363,10 @@ static u32 tlan_handle_tx_eof(struct net_device *dev, u16 host_int)
struct sk_buff *skb = tlan_get_skb(head_list);
ack++;
- pci_unmap_single(priv->pci_dev, head_list->buffer[0].address,
- max(skb->len,
- (unsigned int)TLAN_MIN_FRAME_SIZE),
- PCI_DMA_TODEVICE);
+ dma_unmap_single(&priv->pci_dev->dev,
+ head_list->buffer[0].address,
+ max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE),
+ DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
head_list->buffer[8].address = 0;
head_list->buffer[9].address = 0;
@@ -1511,8 +1509,8 @@ static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
goto drop_and_reuse;
skb = tlan_get_skb(head_list);
- pci_unmap_single(priv->pci_dev, frame_dma,
- TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&priv->pci_dev->dev, frame_dma,
+ TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
skb_put(skb, frame_size);
dev->stats.rx_bytes += frame_size;
@@ -1521,8 +1519,8 @@ static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
netif_rx(skb);
head_list->buffer[0].address - pci_map_single(priv->pci_dev, new_skb->data,
- TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
+ dma_map_single(&priv->pci_dev->dev, new_skb->data,
+ TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
tlan_store_skb(head_list, new_skb);
drop_and_reuse:
@@ -1923,10 +1921,10 @@ static void tlan_reset_lists(struct net_device *dev)
if (!skb)
break;
- list->buffer[0].address = pci_map_single(priv->pci_dev,
+ list->buffer[0].address = dma_map_single(&priv->pci_dev->dev,
skb->data,
TLAN_MAX_FRAME_SIZE,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
tlan_store_skb(list, skb);
list->buffer[1].count = 0;
list->buffer[1].address = 0;
@@ -1954,12 +1952,10 @@ static void tlan_free_lists(struct net_device *dev)
list = priv->tx_list + i;
skb = tlan_get_skb(list);
if (skb) {
- pci_unmap_single(
- priv->pci_dev,
- list->buffer[0].address,
- max(skb->len,
- (unsigned int)TLAN_MIN_FRAME_SIZE),
- PCI_DMA_TODEVICE);
+ dma_unmap_single(&priv->pci_dev->dev,
+ list->buffer[0].address,
+ max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE),
+ DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
list->buffer[8].address = 0;
list->buffer[9].address = 0;
@@ -1970,10 +1966,9 @@ static void tlan_free_lists(struct net_device *dev)
list = priv->rx_list + i;
skb = tlan_get_skb(list);
if (skb) {
- pci_unmap_single(priv->pci_dev,
+ dma_unmap_single(&priv->pci_dev->dev,
list->buffer[0].address,
- TLAN_MAX_FRAME_SIZE,
- PCI_DMA_FROMDEVICE);
+ TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
dev_kfree_skb_any(skb);
list->buffer[8].address = 0;
list->buffer[9].address = 0;
--
2.25.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH] tlan: switch from 'pci_' to 'dma_' API
2020-09-12 7:43 ` Christophe JAILLET
@ 2020-09-12 10:25 ` Christophe JAILLET
-1 siblings, 0 replies; 8+ messages in thread
From: Christophe JAILLET @ 2020-09-12 10:25 UTC (permalink / raw)
To: davem, kuba, andy
Cc: netdev, linux-kernel, kernel-janitors, Christophe JAILLET
The wrappers in include/linux/pci-dma-compat.h should go away.
The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.
When memory is allocated in 'tlan_init()' GFP_KERNEL can be used because
it is only called from a probe function or a module_init function and no
lock is taken in the between.
The call chain is:
tlan_probe (module_init function)
--> tlan_eisa_probe
or
tlan_init_one (probe function)
then in both cases:
--> tlan_probe1
--> tlan_init
@@
@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL
@@
@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE
@@
@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE
@@
@@
- PCI_DMA_NONE
+ DMA_NONE
@@
expression e1, e2, e3;
@@
- pci_alloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3;
@@
- pci_zalloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3, e4;
@@
- pci_free_consistent(e1, e2, e3, e4)
+ dma_free_coherent(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_single(e1, e2, e3, e4)
+ dma_map_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_single(e1, e2, e3, e4)
+ dma_unmap_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4, e5;
@@
- pci_map_page(e1, e2, e3, e4, e5)
+ dma_map_page(&e1->dev, e2, e3, e4, e5)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_page(e1, e2, e3, e4)
+ dma_unmap_page(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_sg(e1, e2, e3, e4)
+ dma_map_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_sg(e1, e2, e3, e4)
+ dma_unmap_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+ dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_device(e1, e2, e3, e4)
+ dma_sync_single_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+ dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+ dma_sync_sg_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2;
@@
- pci_dma_mapping_error(e1, e2)
+ dma_mapping_error(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_dma_mask(e1, e2)
+ dma_set_mask(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_consistent_dma_mask(e1, e2)
+ dma_set_coherent_mask(&e1->dev, e2)
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
If needed, see post from Christoph Hellwig on the kernel-janitors ML:
https://marc.info/?l=kernel-janitors&m=158745678307186&w=4
---
drivers/net/ethernet/ti/tlan.c | 61 ++++++++++++++++------------------
1 file changed, 28 insertions(+), 33 deletions(-)
diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
index 76a342ea3797..1203a3c0febb 100644
--- a/drivers/net/ethernet/ti/tlan.c
+++ b/drivers/net/ethernet/ti/tlan.c
@@ -305,9 +305,8 @@ static void tlan_remove_one(struct pci_dev *pdev)
unregister_netdev(dev);
if (priv->dma_storage) {
- pci_free_consistent(priv->pci_dev,
- priv->dma_size, priv->dma_storage,
- priv->dma_storage_dma);
+ dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
+ priv->dma_storage, priv->dma_storage_dma);
}
#ifdef CONFIG_PCI
@@ -482,7 +481,7 @@ static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
priv->adapter = &board_info[ent->driver_data];
- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
pr_err("No suitable PCI mapping available\n");
goto err_out_free_dev;
@@ -584,8 +583,8 @@ static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
return 0;
err_out_uninit:
- pci_free_consistent(priv->pci_dev, priv->dma_size, priv->dma_storage,
- priv->dma_storage_dma);
+ dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
+ priv->dma_storage, priv->dma_storage_dma);
err_out_free_dev:
free_netdev(dev);
err_out_regions:
@@ -609,9 +608,9 @@ static void tlan_eisa_cleanup(void)
dev = tlan_eisa_devices;
priv = netdev_priv(dev);
if (priv->dma_storage) {
- pci_free_consistent(priv->pci_dev, priv->dma_size,
- priv->dma_storage,
- priv->dma_storage_dma);
+ dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
+ priv->dma_storage,
+ priv->dma_storage_dma);
}
release_region(dev->base_addr, 0x10);
unregister_netdev(dev);
@@ -826,9 +825,8 @@ static int tlan_init(struct net_device *dev)
dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS)
* (sizeof(struct tlan_list));
- priv->dma_storage = pci_alloc_consistent(priv->pci_dev,
- dma_size,
- &priv->dma_storage_dma);
+ priv->dma_storage = dma_alloc_coherent(&priv->pci_dev->dev, dma_size,
+ &priv->dma_storage_dma, GFP_KERNEL);
priv->dma_size = dma_size;
if (priv->dma_storage == NULL) {
@@ -1069,9 +1067,9 @@ static netdev_tx_t tlan_start_tx(struct sk_buff *skb, struct net_device *dev)
tail_list->forward = 0;
- tail_list->buffer[0].address = pci_map_single(priv->pci_dev,
+ tail_list->buffer[0].address = dma_map_single(&priv->pci_dev->dev,
skb->data, txlen,
- PCI_DMA_TODEVICE);
+ DMA_TO_DEVICE);
tlan_store_skb(tail_list, skb);
tail_list->frame_size = (u16) txlen;
@@ -1365,10 +1363,10 @@ static u32 tlan_handle_tx_eof(struct net_device *dev, u16 host_int)
struct sk_buff *skb = tlan_get_skb(head_list);
ack++;
- pci_unmap_single(priv->pci_dev, head_list->buffer[0].address,
- max(skb->len,
- (unsigned int)TLAN_MIN_FRAME_SIZE),
- PCI_DMA_TODEVICE);
+ dma_unmap_single(&priv->pci_dev->dev,
+ head_list->buffer[0].address,
+ max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE),
+ DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
head_list->buffer[8].address = 0;
head_list->buffer[9].address = 0;
@@ -1511,8 +1509,8 @@ static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
goto drop_and_reuse;
skb = tlan_get_skb(head_list);
- pci_unmap_single(priv->pci_dev, frame_dma,
- TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&priv->pci_dev->dev, frame_dma,
+ TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
skb_put(skb, frame_size);
dev->stats.rx_bytes += frame_size;
@@ -1521,8 +1519,8 @@ static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
netif_rx(skb);
head_list->buffer[0].address =
- pci_map_single(priv->pci_dev, new_skb->data,
- TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
+ dma_map_single(&priv->pci_dev->dev, new_skb->data,
+ TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
tlan_store_skb(head_list, new_skb);
drop_and_reuse:
@@ -1923,10 +1921,10 @@ static void tlan_reset_lists(struct net_device *dev)
if (!skb)
break;
- list->buffer[0].address = pci_map_single(priv->pci_dev,
+ list->buffer[0].address = dma_map_single(&priv->pci_dev->dev,
skb->data,
TLAN_MAX_FRAME_SIZE,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
tlan_store_skb(list, skb);
list->buffer[1].count = 0;
list->buffer[1].address = 0;
@@ -1954,12 +1952,10 @@ static void tlan_free_lists(struct net_device *dev)
list = priv->tx_list + i;
skb = tlan_get_skb(list);
if (skb) {
- pci_unmap_single(
- priv->pci_dev,
- list->buffer[0].address,
- max(skb->len,
- (unsigned int)TLAN_MIN_FRAME_SIZE),
- PCI_DMA_TODEVICE);
+ dma_unmap_single(&priv->pci_dev->dev,
+ list->buffer[0].address,
+ max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE),
+ DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
list->buffer[8].address = 0;
list->buffer[9].address = 0;
@@ -1970,10 +1966,9 @@ static void tlan_free_lists(struct net_device *dev)
list = priv->rx_list + i;
skb = tlan_get_skb(list);
if (skb) {
- pci_unmap_single(priv->pci_dev,
+ dma_unmap_single(&priv->pci_dev->dev,
list->buffer[0].address,
- TLAN_MAX_FRAME_SIZE,
- PCI_DMA_FROMDEVICE);
+ TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
dev_kfree_skb_any(skb);
list->buffer[8].address = 0;
list->buffer[9].address = 0;
--
2.25.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH] tlan: switch from 'pci_' to 'dma_' API
@ 2020-09-12 10:25 ` Christophe JAILLET
0 siblings, 0 replies; 8+ messages in thread
From: Christophe JAILLET @ 2020-09-12 10:25 UTC (permalink / raw)
To: davem, kuba, andy
Cc: netdev, linux-kernel, kernel-janitors, Christophe JAILLET
The wrappers in include/linux/pci-dma-compat.h should go away.
The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.
When memory is allocated in 'tlan_init()' GFP_KERNEL can be used because
it is only called from a probe function or a module_init function and no
lock is taken in the between.
The call chain is:
tlan_probe (module_init function)
--> tlan_eisa_probe
or
tlan_init_one (probe function)
then in both cases:
--> tlan_probe1
--> tlan_init
@@
@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL
@@
@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE
@@
@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE
@@
@@
- PCI_DMA_NONE
+ DMA_NONE
@@
expression e1, e2, e3;
@@
- pci_alloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3;
@@
- pci_zalloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3, e4;
@@
- pci_free_consistent(e1, e2, e3, e4)
+ dma_free_coherent(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_single(e1, e2, e3, e4)
+ dma_map_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_single(e1, e2, e3, e4)
+ dma_unmap_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4, e5;
@@
- pci_map_page(e1, e2, e3, e4, e5)
+ dma_map_page(&e1->dev, e2, e3, e4, e5)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_page(e1, e2, e3, e4)
+ dma_unmap_page(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_sg(e1, e2, e3, e4)
+ dma_map_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_sg(e1, e2, e3, e4)
+ dma_unmap_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+ dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_device(e1, e2, e3, e4)
+ dma_sync_single_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+ dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+ dma_sync_sg_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2;
@@
- pci_dma_mapping_error(e1, e2)
+ dma_mapping_error(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_dma_mask(e1, e2)
+ dma_set_mask(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_consistent_dma_mask(e1, e2)
+ dma_set_coherent_mask(&e1->dev, e2)
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
If needed, see post from Christoph Hellwig on the kernel-janitors ML:
https://marc.info/?l=kernel-janitors&m\x158745678307186&w=4
---
drivers/net/ethernet/ti/tlan.c | 61 ++++++++++++++++------------------
1 file changed, 28 insertions(+), 33 deletions(-)
diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
index 76a342ea3797..1203a3c0febb 100644
--- a/drivers/net/ethernet/ti/tlan.c
+++ b/drivers/net/ethernet/ti/tlan.c
@@ -305,9 +305,8 @@ static void tlan_remove_one(struct pci_dev *pdev)
unregister_netdev(dev);
if (priv->dma_storage) {
- pci_free_consistent(priv->pci_dev,
- priv->dma_size, priv->dma_storage,
- priv->dma_storage_dma);
+ dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
+ priv->dma_storage, priv->dma_storage_dma);
}
#ifdef CONFIG_PCI
@@ -482,7 +481,7 @@ static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
priv->adapter = &board_info[ent->driver_data];
- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
pr_err("No suitable PCI mapping available\n");
goto err_out_free_dev;
@@ -584,8 +583,8 @@ static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
return 0;
err_out_uninit:
- pci_free_consistent(priv->pci_dev, priv->dma_size, priv->dma_storage,
- priv->dma_storage_dma);
+ dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
+ priv->dma_storage, priv->dma_storage_dma);
err_out_free_dev:
free_netdev(dev);
err_out_regions:
@@ -609,9 +608,9 @@ static void tlan_eisa_cleanup(void)
dev = tlan_eisa_devices;
priv = netdev_priv(dev);
if (priv->dma_storage) {
- pci_free_consistent(priv->pci_dev, priv->dma_size,
- priv->dma_storage,
- priv->dma_storage_dma);
+ dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
+ priv->dma_storage,
+ priv->dma_storage_dma);
}
release_region(dev->base_addr, 0x10);
unregister_netdev(dev);
@@ -826,9 +825,8 @@ static int tlan_init(struct net_device *dev)
dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS)
* (sizeof(struct tlan_list));
- priv->dma_storage = pci_alloc_consistent(priv->pci_dev,
- dma_size,
- &priv->dma_storage_dma);
+ priv->dma_storage = dma_alloc_coherent(&priv->pci_dev->dev, dma_size,
+ &priv->dma_storage_dma, GFP_KERNEL);
priv->dma_size = dma_size;
if (priv->dma_storage = NULL) {
@@ -1069,9 +1067,9 @@ static netdev_tx_t tlan_start_tx(struct sk_buff *skb, struct net_device *dev)
tail_list->forward = 0;
- tail_list->buffer[0].address = pci_map_single(priv->pci_dev,
+ tail_list->buffer[0].address = dma_map_single(&priv->pci_dev->dev,
skb->data, txlen,
- PCI_DMA_TODEVICE);
+ DMA_TO_DEVICE);
tlan_store_skb(tail_list, skb);
tail_list->frame_size = (u16) txlen;
@@ -1365,10 +1363,10 @@ static u32 tlan_handle_tx_eof(struct net_device *dev, u16 host_int)
struct sk_buff *skb = tlan_get_skb(head_list);
ack++;
- pci_unmap_single(priv->pci_dev, head_list->buffer[0].address,
- max(skb->len,
- (unsigned int)TLAN_MIN_FRAME_SIZE),
- PCI_DMA_TODEVICE);
+ dma_unmap_single(&priv->pci_dev->dev,
+ head_list->buffer[0].address,
+ max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE),
+ DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
head_list->buffer[8].address = 0;
head_list->buffer[9].address = 0;
@@ -1511,8 +1509,8 @@ static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
goto drop_and_reuse;
skb = tlan_get_skb(head_list);
- pci_unmap_single(priv->pci_dev, frame_dma,
- TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&priv->pci_dev->dev, frame_dma,
+ TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
skb_put(skb, frame_size);
dev->stats.rx_bytes += frame_size;
@@ -1521,8 +1519,8 @@ static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
netif_rx(skb);
head_list->buffer[0].address - pci_map_single(priv->pci_dev, new_skb->data,
- TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
+ dma_map_single(&priv->pci_dev->dev, new_skb->data,
+ TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
tlan_store_skb(head_list, new_skb);
drop_and_reuse:
@@ -1923,10 +1921,10 @@ static void tlan_reset_lists(struct net_device *dev)
if (!skb)
break;
- list->buffer[0].address = pci_map_single(priv->pci_dev,
+ list->buffer[0].address = dma_map_single(&priv->pci_dev->dev,
skb->data,
TLAN_MAX_FRAME_SIZE,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
tlan_store_skb(list, skb);
list->buffer[1].count = 0;
list->buffer[1].address = 0;
@@ -1954,12 +1952,10 @@ static void tlan_free_lists(struct net_device *dev)
list = priv->tx_list + i;
skb = tlan_get_skb(list);
if (skb) {
- pci_unmap_single(
- priv->pci_dev,
- list->buffer[0].address,
- max(skb->len,
- (unsigned int)TLAN_MIN_FRAME_SIZE),
- PCI_DMA_TODEVICE);
+ dma_unmap_single(&priv->pci_dev->dev,
+ list->buffer[0].address,
+ max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE),
+ DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
list->buffer[8].address = 0;
list->buffer[9].address = 0;
@@ -1970,10 +1966,9 @@ static void tlan_free_lists(struct net_device *dev)
list = priv->rx_list + i;
skb = tlan_get_skb(list);
if (skb) {
- pci_unmap_single(priv->pci_dev,
+ dma_unmap_single(&priv->pci_dev->dev,
list->buffer[0].address,
- TLAN_MAX_FRAME_SIZE,
- PCI_DMA_FROMDEVICE);
+ TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
dev_kfree_skb_any(skb);
list->buffer[8].address = 0;
list->buffer[9].address = 0;
--
2.25.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH] tlan: switch from 'pci_' to 'dma_' API
2020-09-12 10:25 ` Christophe JAILLET
@ 2020-09-12 14:15 ` Christophe JAILLET
-1 siblings, 0 replies; 8+ messages in thread
From: Christophe JAILLET @ 2020-09-12 14:15 UTC (permalink / raw)
To: davem, kuba, andy; +Cc: netdev, linux-kernel, kernel-janitors
Le 12/09/2020 à 12:25, Christophe JAILLET a écrit :
> The wrappers in include/linux/pci-dma-compat.h should go away.
>
> The patch has been generated with the coccinelle script below and has been
> hand modified to replace GFP_ with a correct flag.
> It has been compile tested.
>
> When memory is allocated in 'tlan_init()' GFP_KERNEL can be used because
> it is only called from a probe function or a module_init function and no
> lock is taken in the between.
> The call chain is:
> tlan_probe (module_init function)
> --> tlan_eisa_probe
> or
> tlan_init_one (probe function)
>
> then in both cases:
> --> tlan_probe1
> --> tlan_init
>
> [...]
> ---
> drivers/net/ethernet/ti/tlan.c | 61 ++++++++++++++++------------------
> 1 file changed, 28 insertions(+), 33 deletions(-)
>
> diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
> index 76a342ea3797..1203a3c0febb 100644
> --- a/drivers/net/ethernet/ti/tlan.c
> +++ b/drivers/net/ethernet/ti/tlan.c
> [...]
This patch has been sent twice.
This one is the 2nd copy with the wrong person in To:.
Apologizes for the noise.
CJ
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] tlan: switch from 'pci_' to 'dma_' API
@ 2020-09-12 14:15 ` Christophe JAILLET
0 siblings, 0 replies; 8+ messages in thread
From: Christophe JAILLET @ 2020-09-12 14:15 UTC (permalink / raw)
To: davem, kuba, andy; +Cc: netdev, linux-kernel, kernel-janitors
Le 12/09/2020 à 12:25, Christophe JAILLET a écrit :
> The wrappers in include/linux/pci-dma-compat.h should go away.
>
> The patch has been generated with the coccinelle script below and has been
> hand modified to replace GFP_ with a correct flag.
> It has been compile tested.
>
> When memory is allocated in 'tlan_init()' GFP_KERNEL can be used because
> it is only called from a probe function or a module_init function and no
> lock is taken in the between.
> The call chain is:
> tlan_probe (module_init function)
> --> tlan_eisa_probe
> or
> tlan_init_one (probe function)
>
> then in both cases:
> --> tlan_probe1
> --> tlan_init
>
> [...]
> ---
> drivers/net/ethernet/ti/tlan.c | 61 ++++++++++++++++------------------
> 1 file changed, 28 insertions(+), 33 deletions(-)
>
> diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
> index 76a342ea3797..1203a3c0febb 100644
> --- a/drivers/net/ethernet/ti/tlan.c
> +++ b/drivers/net/ethernet/ti/tlan.c
> [...]
This patch has been sent twice.
This one is the 2nd copy with the wrong person in To:.
Apologizes for the noise.
CJ
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] tlan: switch from 'pci_' to 'dma_' API
2020-09-12 7:43 ` Christophe JAILLET
@ 2020-09-13 1:26 ` David Miller
-1 siblings, 0 replies; 8+ messages in thread
From: David Miller @ 2020-09-13 1:26 UTC (permalink / raw)
To: christophe.jaillet; +Cc: kuba, chessman, netdev, linux-kernel, kernel-janitors
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sat, 12 Sep 2020 09:43:58 +0200
> The wrappers in include/linux/pci-dma-compat.h should go away.
>
> The patch has been generated with the coccinelle script below and has been
> hand modified to replace GFP_ with a correct flag.
> It has been compile tested.
>
> When memory is allocated in 'tlan_init()' GFP_KERNEL can be used because
> it is only called from a probe function or a module_init function and no
> lock is taken in the between.
> The call chain is:
> tlan_probe (module_init function)
> --> tlan_eisa_probe
> or
> tlan_init_one (probe function)
>
> then in both cases:
> --> tlan_probe1
> --> tlan_init
>
...
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Applied.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] tlan: switch from 'pci_' to 'dma_' API
@ 2020-09-13 1:26 ` David Miller
0 siblings, 0 replies; 8+ messages in thread
From: David Miller @ 2020-09-13 1:26 UTC (permalink / raw)
To: christophe.jaillet; +Cc: kuba, chessman, netdev, linux-kernel, kernel-janitors
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sat, 12 Sep 2020 09:43:58 +0200
> The wrappers in include/linux/pci-dma-compat.h should go away.
>
> The patch has been generated with the coccinelle script below and has been
> hand modified to replace GFP_ with a correct flag.
> It has been compile tested.
>
> When memory is allocated in 'tlan_init()' GFP_KERNEL can be used because
> it is only called from a probe function or a module_init function and no
> lock is taken in the between.
> The call chain is:
> tlan_probe (module_init function)
> --> tlan_eisa_probe
> or
> tlan_init_one (probe function)
>
> then in both cases:
> --> tlan_probe1
> --> tlan_init
>
...
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Applied.
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2020-09-13 1:27 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-09-12 7:43 [PATCH] tlan: switch from 'pci_' to 'dma_' API Christophe JAILLET
2020-09-12 7:43 ` Christophe JAILLET
2020-09-13 1:26 ` David Miller
2020-09-13 1:26 ` David Miller
2020-09-12 10:25 Christophe JAILLET
2020-09-12 10:25 ` Christophe JAILLET
2020-09-12 14:15 ` Christophe JAILLET
2020-09-12 14:15 ` Christophe JAILLET
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